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https://github.com/pret/pokered.git
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4625 lines
94 KiB
NASM
4625 lines
94 KiB
NASM
INCLUDE "constants.asm"
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SECTION "NULL", ROM0
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NULL::
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INCLUDE "home/header.asm"
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SECTION "High Home", ROM0
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INCLUDE "home/lcd.asm"
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INCLUDE "home/clear_sprites.asm"
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INCLUDE "home/copy.asm"
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SECTION "Home", ROM0
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INCLUDE "home/start.asm"
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INCLUDE "home/joypad.asm"
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INCLUDE "data/maps/map_header_pointers.asm"
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INCLUDE "home/overworld.asm"
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CheckForUserInterruption::
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; Return carry if Up+Select+B, Start or A are pressed in c frames.
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; Used only in the intro and title screen.
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call DelayFrame
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push bc
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call JoypadLowSensitivity
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pop bc
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ld a, [hJoyHeld]
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cp D_UP + SELECT + B_BUTTON
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jr z, .input
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ld a, [hJoy5]
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and START | A_BUTTON
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jr nz, .input
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dec c
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jr nz, CheckForUserInterruption
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and a
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ret
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.input
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scf
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ret
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; function to load position data for destination warp when switching maps
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; INPUT:
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; a = ID of destination warp within destination map
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LoadDestinationWarpPosition::
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ld b, a
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ld a, [hLoadedROMBank]
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push af
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ld a, [wPredefParentBank]
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ld [hLoadedROMBank], a
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ld [MBC1RomBank], a
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ld a, b
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add a
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add a
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ld c, a
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ld b, 0
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add hl, bc
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ld bc, 4
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ld de, wCurrentTileBlockMapViewPointer
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call CopyData
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pop af
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ld [hLoadedROMBank], a
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ld [MBC1RomBank], a
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ret
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DrawHPBar::
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; Draw an HP bar d tiles long, and fill it to e pixels.
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; If c is nonzero, show at least a sliver regardless.
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; The right end of the bar changes with [wHPBarType].
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push hl
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push de
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push bc
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; Left
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ld a, $71 ; "HP:"
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ld [hli], a
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ld a, $62
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ld [hli], a
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push hl
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; Middle
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ld a, $63 ; empty
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.draw
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ld [hli], a
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dec d
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jr nz, .draw
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; Right
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ld a, [wHPBarType]
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dec a
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ld a, $6d ; status screen and battle
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jr z, .ok
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dec a ; pokemon menu
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.ok
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ld [hl], a
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pop hl
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ld a, e
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and a
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jr nz, .fill
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; If c is nonzero, draw a pixel anyway.
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ld a, c
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and a
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jr z, .done
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ld e, 1
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.fill
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ld a, e
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sub 8
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jr c, .partial
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ld e, a
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ld a, $6b ; full
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ld [hli], a
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ld a, e
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and a
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jr z, .done
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jr .fill
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.partial
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; Fill remaining pixels at the end if necessary.
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ld a, $63 ; empty
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add e
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ld [hl], a
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.done
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pop bc
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pop de
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pop hl
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ret
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; loads pokemon data from one of multiple sources to wLoadedMon
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; loads base stats to wMonHeader
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; INPUT:
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; [wWhichPokemon] = index of pokemon within party/box
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; [wMonDataLocation] = source
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; 00: player's party
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; 01: enemy's party
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; 02: current box
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; 03: daycare
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; OUTPUT:
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; [wcf91] = pokemon ID
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; wLoadedMon = base address of pokemon data
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; wMonHeader = base address of base stats
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LoadMonData::
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jpab LoadMonData_
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OverwritewMoves::
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; Write c to [wMoves + b]. Unused.
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ld hl, wMoves
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ld e, b
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ld d, 0
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add hl, de
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ld a, c
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ld [hl], a
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ret
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LoadFlippedFrontSpriteByMonIndex::
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ld a, 1
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ld [wSpriteFlipped], a
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LoadFrontSpriteByMonIndex::
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push hl
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ld a, [wd11e]
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push af
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ld a, [wcf91]
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ld [wd11e], a
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predef IndexToPokedex
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ld hl, wd11e
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ld a, [hl]
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pop bc
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ld [hl], b
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and a
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pop hl
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jr z, .invalidDexNumber ; dex #0 invalid
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cp NUM_POKEMON + 1
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jr c, .validDexNumber ; dex >#151 invalid
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.invalidDexNumber
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ld a, RHYDON ; $1
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ld [wcf91], a
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ret
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.validDexNumber
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push hl
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ld de, vFrontPic
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call LoadMonFrontSprite
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pop hl
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ld a, [hLoadedROMBank]
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push af
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ld a, Bank(CopyUncompressedPicToHL)
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ld [hLoadedROMBank], a
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ld [MBC1RomBank], a
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xor a
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ld [hStartTileID], a
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call CopyUncompressedPicToHL
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xor a
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ld [wSpriteFlipped], a
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pop af
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ld [hLoadedROMBank], a
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ld [MBC1RomBank], a
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ret
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PlayCry::
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; Play monster a's cry.
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call GetCryData
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call PlaySound
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jp WaitForSoundToFinish
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GetCryData::
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; Load cry data for monster a.
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dec a
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ld c, a
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ld b, 0
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ld hl, CryData
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add hl, bc
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add hl, bc
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add hl, bc
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ld a, BANK(CryData)
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call BankswitchHome
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ld a, [hli]
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ld b, a ; cry id
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ld a, [hli]
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ld [wFrequencyModifier], a
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ld a, [hl]
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ld [wTempoModifier], a
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call BankswitchBack
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; Cry headers have 3 channels,
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; and start from index CRY_SFX_START,
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; so add 3 times the cry id.
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ld a, b
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ld c, CRY_SFX_START
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rlca ; * 2
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add b
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add c
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ret
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DisplayPartyMenu::
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ld a, [hTilesetType]
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push af
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xor a
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ld [hTilesetType], a
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call GBPalWhiteOutWithDelay3
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call ClearSprites
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call PartyMenuInit
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call DrawPartyMenu
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jp HandlePartyMenuInput
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GoBackToPartyMenu::
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ld a, [hTilesetType]
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push af
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xor a
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ld [hTilesetType], a
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call PartyMenuInit
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call RedrawPartyMenu
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jp HandlePartyMenuInput
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PartyMenuInit::
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ld a, 1 ; hardcoded bank
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call BankswitchHome
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call LoadHpBarAndStatusTilePatterns
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ld hl, wd730
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set 6, [hl] ; turn off letter printing delay
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xor a ; PLAYER_PARTY_DATA
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ld [wMonDataLocation], a
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ld [wMenuWatchMovingOutOfBounds], a
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ld hl, wTopMenuItemY
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inc a
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ld [hli], a ; top menu item Y
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xor a
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ld [hli], a ; top menu item X
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ld a, [wPartyAndBillsPCSavedMenuItem]
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push af
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ld [hli], a ; current menu item ID
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inc hl
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ld a, [wPartyCount]
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and a ; are there more than 0 pokemon in the party?
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jr z, .storeMaxMenuItemID
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dec a
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; if party is not empty, the max menu item ID is ([wPartyCount] - 1)
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; otherwise, it is 0
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.storeMaxMenuItemID
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ld [hli], a ; max menu item ID
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ld a, [wForcePlayerToChooseMon]
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and a
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ld a, A_BUTTON | B_BUTTON
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jr z, .next
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xor a
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ld [wForcePlayerToChooseMon], a
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inc a ; a = A_BUTTON
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.next
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ld [hli], a ; menu watched keys
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pop af
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ld [hl], a ; old menu item ID
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ret
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HandlePartyMenuInput::
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ld a, 1
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ld [wMenuWrappingEnabled], a
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ld a, $40
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ld [wPartyMenuAnimMonEnabled], a
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call HandleMenuInput_
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call PlaceUnfilledArrowMenuCursor
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ld b, a
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xor a
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ld [wPartyMenuAnimMonEnabled], a
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ld a, [wCurrentMenuItem]
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ld [wPartyAndBillsPCSavedMenuItem], a
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ld hl, wd730
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res 6, [hl] ; turn on letter printing delay
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ld a, [wMenuItemToSwap]
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and a
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jp nz, .swappingPokemon
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pop af
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ld [hTilesetType], a
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bit 1, b
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jr nz, .noPokemonChosen
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ld a, [wPartyCount]
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and a
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jr z, .noPokemonChosen
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ld a, [wCurrentMenuItem]
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ld [wWhichPokemon], a
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ld hl, wPartySpecies
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ld b, 0
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ld c, a
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add hl, bc
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ld a, [hl]
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ld [wcf91], a
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ld [wBattleMonSpecies2], a
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call BankswitchBack
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and a
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ret
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.noPokemonChosen
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call BankswitchBack
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scf
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ret
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.swappingPokemon
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bit 1, b ; was the B button pressed?
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jr z, .handleSwap ; if not, handle swapping the pokemon
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.cancelSwap ; if the B button was pressed
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callba ErasePartyMenuCursors
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xor a
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ld [wMenuItemToSwap], a
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ld [wPartyMenuTypeOrMessageID], a
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call RedrawPartyMenu
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jr HandlePartyMenuInput
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.handleSwap
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ld a, [wCurrentMenuItem]
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ld [wWhichPokemon], a
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callba SwitchPartyMon
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jr HandlePartyMenuInput
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DrawPartyMenu::
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ld hl, DrawPartyMenu_
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jr DrawPartyMenuCommon
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RedrawPartyMenu::
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ld hl, RedrawPartyMenu_
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DrawPartyMenuCommon::
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ld b, BANK(RedrawPartyMenu_)
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jp Bankswitch
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; prints a pokemon's status condition
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; INPUT:
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; de = address of status condition
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; hl = destination address
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PrintStatusCondition::
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push de
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dec de
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dec de ; de = address of current HP
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ld a, [de]
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ld b, a
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dec de
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ld a, [de]
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or b ; is the pokemon's HP zero?
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pop de
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jr nz, PrintStatusConditionNotFainted
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; if the pokemon's HP is 0, print "FNT"
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ld a, "F"
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ld [hli], a
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ld a, "N"
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ld [hli], a
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ld [hl], "T"
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and a
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ret
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PrintStatusConditionNotFainted::
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ld a, [hLoadedROMBank]
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push af
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ld a, BANK(PrintStatusAilment)
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ld [hLoadedROMBank], a
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ld [MBC1RomBank], a
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call PrintStatusAilment ; print status condition
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pop bc
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ld a, b
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ld [hLoadedROMBank], a
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ld [MBC1RomBank], a
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ret
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; function to print pokemon level, leaving off the ":L" if the level is at least 100
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; INPUT:
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; hl = destination address
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; [wLoadedMonLevel] = level
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PrintLevel::
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ld a, $6e ; ":L" tile ID
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ld [hli], a
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ld c, 2 ; number of digits
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ld a, [wLoadedMonLevel] ; level
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cp 100
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jr c, PrintLevelCommon
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; if level at least 100, write over the ":L" tile
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dec hl
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inc c ; increment number of digits to 3
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jr PrintLevelCommon
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; prints the level without leaving off ":L" regardless of level
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; INPUT:
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; hl = destination address
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; [wLoadedMonLevel] = level
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PrintLevelFull::
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ld a, $6e ; ":L" tile ID
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ld [hli], a
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ld c, 3 ; number of digits
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ld a, [wLoadedMonLevel] ; level
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PrintLevelCommon::
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ld [wd11e], a
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ld de, wd11e
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ld b, LEFT_ALIGN | 1 ; 1 byte
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jp PrintNumber
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GetwMoves::
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; Unused. Returns the move at index a from wMoves in a
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ld hl, wMoves
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ld c, a
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ld b, 0
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add hl, bc
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ld a, [hl]
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ret
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; copies the base stat data of a pokemon to wMonHeader
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; INPUT:
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; [wd0b5] = pokemon ID
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GetMonHeader::
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ld a, [hLoadedROMBank]
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push af
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ld a, BANK(BaseStats)
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ld [hLoadedROMBank], a
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ld [MBC1RomBank], a
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push bc
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push de
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push hl
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ld a, [wd11e]
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push af
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ld a, [wd0b5]
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ld [wd11e], a
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ld de, FossilKabutopsPic
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ld b, $66 ; size of Kabutops fossil and Ghost sprites
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cp FOSSIL_KABUTOPS ; Kabutops fossil
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jr z, .specialID
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ld de, GhostPic
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cp MON_GHOST ; Ghost
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jr z, .specialID
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ld de, FossilAerodactylPic
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ld b, $77 ; size of Aerodactyl fossil sprite
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cp FOSSIL_AERODACTYL ; Aerodactyl fossil
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jr z, .specialID
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cp MEW
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jr z, .mew
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predef IndexToPokedex ; convert pokemon ID in [wd11e] to pokedex number
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ld a, [wd11e]
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dec a
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ld bc, MonBaseStatsEnd - MonBaseStats
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ld hl, BaseStats
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call AddNTimes
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ld de, wMonHeader
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ld bc, MonBaseStatsEnd - MonBaseStats
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call CopyData
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jr .done
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.specialID
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ld hl, wMonHSpriteDim
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ld [hl], b ; write sprite dimensions
|
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inc hl
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ld [hl], e ; write front sprite pointer
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inc hl
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ld [hl], d
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jr .done
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.mew
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ld hl, MewBaseStats
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ld de, wMonHeader
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ld bc, MonBaseStatsEnd - MonBaseStats
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ld a, BANK(MewBaseStats)
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call FarCopyData
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.done
|
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ld a, [wd0b5]
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ld [wMonHIndex], a
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||
pop af
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||
ld [wd11e], a
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pop hl
|
||
pop de
|
||
pop bc
|
||
pop af
|
||
ld [hLoadedROMBank], a
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ld [MBC1RomBank], a
|
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ret
|
||
|
||
; copy party pokemon's name to wcd6d
|
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GetPartyMonName2::
|
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ld a, [wWhichPokemon] ; index within party
|
||
ld hl, wPartyMonNicks
|
||
|
||
; this is called more often
|
||
GetPartyMonName::
|
||
push hl
|
||
push bc
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||
call SkipFixedLengthTextEntries ; add NAME_LENGTH to hl, a times
|
||
ld de, wcd6d
|
||
push de
|
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ld bc, NAME_LENGTH
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||
call CopyData
|
||
pop de
|
||
pop bc
|
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pop hl
|
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ret
|
||
|
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; function to print a BCD (Binary-coded decimal) number
|
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; de = address of BCD number
|
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; hl = destination address
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; c = flags and length
|
||
; bit 7: if set, do not print leading zeroes
|
||
; if unset, print leading zeroes
|
||
; bit 6: if set, left-align the string (do not pad empty digits with spaces)
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||
; if unset, right-align the string
|
||
; bit 5: if set, print currency symbol at the beginning of the string
|
||
; if unset, do not print the currency symbol
|
||
; bits 0-4: length of BCD number in bytes
|
||
; Note that bits 5 and 7 are modified during execution. The above reflects
|
||
; their meaning at the beginning of the functions's execution.
|
||
PrintBCDNumber::
|
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ld b, c ; save flags in b
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res 7, c
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res 6, c
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||
res 5, c ; c now holds the length
|
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bit 5, b
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jr z, .loop
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bit 7, b
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jr nz, .loop
|
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ld [hl], "¥"
|
||
inc hl
|
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.loop
|
||
ld a, [de]
|
||
swap a
|
||
call PrintBCDDigit ; print upper digit
|
||
ld a, [de]
|
||
call PrintBCDDigit ; print lower digit
|
||
inc de
|
||
dec c
|
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jr nz, .loop
|
||
bit 7, b ; were any non-zero digits printed?
|
||
jr z, .done ; if so, we are done
|
||
.numberEqualsZero ; if every digit of the BCD number is zero
|
||
bit 6, b ; left or right alignment?
|
||
jr nz, .skipRightAlignmentAdjustment
|
||
dec hl ; if the string is right-aligned, it needs to be moved back one space
|
||
.skipRightAlignmentAdjustment
|
||
bit 5, b
|
||
jr z, .skipCurrencySymbol
|
||
ld [hl], "¥"
|
||
inc hl
|
||
.skipCurrencySymbol
|
||
ld [hl], "0"
|
||
call PrintLetterDelay
|
||
inc hl
|
||
.done
|
||
ret
|
||
|
||
PrintBCDDigit::
|
||
and $f
|
||
and a
|
||
jr z, .zeroDigit
|
||
.nonzeroDigit
|
||
bit 7, b ; have any non-space characters been printed?
|
||
jr z, .outputDigit
|
||
; if bit 7 is set, then no numbers have been printed yet
|
||
bit 5, b ; print the currency symbol?
|
||
jr z, .skipCurrencySymbol
|
||
ld [hl], "¥"
|
||
inc hl
|
||
res 5, b
|
||
.skipCurrencySymbol
|
||
res 7, b ; unset 7 to indicate that a nonzero digit has been reached
|
||
.outputDigit
|
||
add "0"
|
||
ld [hli], a
|
||
jp PrintLetterDelay
|
||
.zeroDigit
|
||
bit 7, b ; either printing leading zeroes or already reached a nonzero digit?
|
||
jr z, .outputDigit ; if so, print a zero digit
|
||
bit 6, b ; left or right alignment?
|
||
ret nz
|
||
inc hl ; if right-aligned, "print" a space by advancing the pointer
|
||
ret
|
||
|
||
; uncompresses the front or back sprite of the specified mon
|
||
; assumes the corresponding mon header is already loaded
|
||
; hl contains offset to sprite pointer ($b for front or $d for back)
|
||
UncompressMonSprite::
|
||
ld bc, wMonHeader
|
||
add hl, bc
|
||
ld a, [hli]
|
||
ld [wSpriteInputPtr], a ; fetch sprite input pointer
|
||
ld a, [hl]
|
||
ld [wSpriteInputPtr+1], a
|
||
; define (by index number) the bank that a pokemon's image is in
|
||
; index = Mew, bank 1
|
||
; index = Kabutops fossil, bank $B
|
||
; index < $1F, bank 9
|
||
; $1F ≤ index < $4A, bank $A
|
||
; $4A ≤ index < $74, bank $B
|
||
; $74 ≤ index < $99, bank $C
|
||
; $99 ≤ index, bank $D
|
||
ld a, [wcf91] ; XXX name for this ram location
|
||
ld b, a
|
||
cp MEW
|
||
ld a, BANK(MewPicFront)
|
||
jr z, .GotBank
|
||
ld a, b
|
||
cp FOSSIL_KABUTOPS
|
||
ld a, BANK(FossilKabutopsPic)
|
||
jr z, .GotBank
|
||
ld a, b
|
||
cp TANGELA + 1
|
||
ld a, BANK(TangelaPicFront)
|
||
jr c, .GotBank
|
||
ld a, b
|
||
cp MOLTRES + 1
|
||
ld a, BANK(MoltresPicFront)
|
||
jr c, .GotBank
|
||
ld a, b
|
||
cp BEEDRILL + 2
|
||
ld a, BANK(BeedrillPicFront)
|
||
jr c, .GotBank
|
||
ld a, b
|
||
cp STARMIE + 1
|
||
ld a, BANK(StarmiePicFront)
|
||
jr c, .GotBank
|
||
ld a, BANK(VictreebelPicFront)
|
||
.GotBank
|
||
jp UncompressSpriteData
|
||
|
||
; de: destination location
|
||
LoadMonFrontSprite::
|
||
push de
|
||
ld hl, wMonHFrontSprite - wMonHeader
|
||
call UncompressMonSprite
|
||
ld hl, wMonHSpriteDim
|
||
ld a, [hli]
|
||
ld c, a
|
||
pop de
|
||
; fall through
|
||
|
||
; postprocesses uncompressed sprite chunks to a 2bpp sprite and loads it into video ram
|
||
; calculates alignment parameters to place both sprite chunks in the center of the 7*7 tile sprite buffers
|
||
; de: destination location
|
||
; a,c: sprite dimensions (in tiles of 8x8 each)
|
||
LoadUncompressedSpriteData::
|
||
push de
|
||
and $f
|
||
ld [hSpriteWidth], a ; each byte contains 8 pixels (in 1bpp), so tiles=bytes for width
|
||
ld b, a
|
||
ld a, $7
|
||
sub b ; 7-w
|
||
inc a ; 8-w
|
||
srl a ; (8-w)/2 ; horizontal center (in tiles, rounded up)
|
||
ld b, a
|
||
add a
|
||
add a
|
||
add a
|
||
sub b ; 7*((8-w)/2) ; skip for horizontal center (in tiles)
|
||
ld [hSpriteOffset], a
|
||
ld a, c
|
||
swap a
|
||
and $f
|
||
ld b, a
|
||
add a
|
||
add a
|
||
add a ; 8*tiles is height in bytes
|
||
ld [hSpriteHeight], a
|
||
ld a, $7
|
||
sub b ; 7-h ; skip for vertical center (in tiles, relative to current column)
|
||
ld b, a
|
||
ld a, [hSpriteOffset]
|
||
add b ; 7*((8-w)/2) + 7-h ; combined overall offset (in tiles)
|
||
add a
|
||
add a
|
||
add a ; 8*(7*((8-w)/2) + 7-h) ; combined overall offset (in bytes)
|
||
ld [hSpriteOffset], a
|
||
xor a
|
||
ld [$4000], a
|
||
ld hl, sSpriteBuffer0
|
||
call ZeroSpriteBuffer ; zero buffer 0
|
||
ld de, sSpriteBuffer1
|
||
ld hl, sSpriteBuffer0
|
||
call AlignSpriteDataCentered ; copy and align buffer 1 to 0 (containing the MSB of the 2bpp sprite)
|
||
ld hl, sSpriteBuffer1
|
||
call ZeroSpriteBuffer ; zero buffer 1
|
||
ld de, sSpriteBuffer2
|
||
ld hl, sSpriteBuffer1
|
||
call AlignSpriteDataCentered ; copy and align buffer 2 to 1 (containing the LSB of the 2bpp sprite)
|
||
pop de
|
||
jp InterlaceMergeSpriteBuffers
|
||
|
||
; copies and aligns the sprite data properly inside the sprite buffer
|
||
; sprite buffers are 7*7 tiles in size, the loaded sprite is centered within this area
|
||
AlignSpriteDataCentered::
|
||
ld a, [hSpriteOffset]
|
||
ld b, $0
|
||
ld c, a
|
||
add hl, bc
|
||
ld a, [hSpriteWidth]
|
||
.columnLoop
|
||
push af
|
||
push hl
|
||
ld a, [hSpriteHeight]
|
||
ld c, a
|
||
.columnInnerLoop
|
||
ld a, [de]
|
||
inc de
|
||
ld [hli], a
|
||
dec c
|
||
jr nz, .columnInnerLoop
|
||
pop hl
|
||
ld bc, 7*8 ; 7 tiles
|
||
add hl, bc ; advance one full column
|
||
pop af
|
||
dec a
|
||
jr nz, .columnLoop
|
||
ret
|
||
|
||
; fills the sprite buffer (pointed to in hl) with zeros
|
||
ZeroSpriteBuffer::
|
||
ld bc, SPRITEBUFFERSIZE
|
||
.nextByteLoop
|
||
xor a
|
||
ld [hli], a
|
||
dec bc
|
||
ld a, b
|
||
or c
|
||
jr nz, .nextByteLoop
|
||
ret
|
||
|
||
; combines the (7*7 tiles, 1bpp) sprite chunks in buffer 0 and 1 into a 2bpp sprite located in buffer 1 through 2
|
||
; in the resulting sprite, the rows of the two source sprites are interlaced
|
||
; de: output address
|
||
InterlaceMergeSpriteBuffers::
|
||
xor a
|
||
ld [$4000], a
|
||
push de
|
||
ld hl, sSpriteBuffer2 + (SPRITEBUFFERSIZE - 1) ; destination: end of buffer 2
|
||
ld de, sSpriteBuffer1 + (SPRITEBUFFERSIZE - 1) ; source 2: end of buffer 1
|
||
ld bc, sSpriteBuffer0 + (SPRITEBUFFERSIZE - 1) ; source 1: end of buffer 0
|
||
ld a, SPRITEBUFFERSIZE/2 ; $c4
|
||
ld [hSpriteInterlaceCounter], a
|
||
.interlaceLoop
|
||
ld a, [de]
|
||
dec de
|
||
ld [hld], a ; write byte of source 2
|
||
ld a, [bc]
|
||
dec bc
|
||
ld [hld], a ; write byte of source 1
|
||
ld a, [de]
|
||
dec de
|
||
ld [hld], a ; write byte of source 2
|
||
ld a, [bc]
|
||
dec bc
|
||
ld [hld], a ; write byte of source 1
|
||
ld a, [hSpriteInterlaceCounter]
|
||
dec a
|
||
ld [hSpriteInterlaceCounter], a
|
||
jr nz, .interlaceLoop
|
||
ld a, [wSpriteFlipped]
|
||
and a
|
||
jr z, .notFlipped
|
||
ld bc, 2*SPRITEBUFFERSIZE
|
||
ld hl, sSpriteBuffer1
|
||
.swapLoop
|
||
swap [hl] ; if flipped swap nybbles in all bytes
|
||
inc hl
|
||
dec bc
|
||
ld a, b
|
||
or c
|
||
jr nz, .swapLoop
|
||
.notFlipped
|
||
pop hl
|
||
ld de, sSpriteBuffer1
|
||
ld c, (2*SPRITEBUFFERSIZE)/16 ; $31, number of 16 byte chunks to be copied
|
||
ld a, [hLoadedROMBank]
|
||
ld b, a
|
||
jp CopyVideoData
|
||
|
||
|
||
INCLUDE "data/tilesets/collision_tile_ids.asm"
|
||
INCLUDE "home/copy2.asm"
|
||
INCLUDE "home/text.asm"
|
||
INCLUDE "home/vcopy.asm"
|
||
INCLUDE "home/init.asm"
|
||
INCLUDE "home/vblank.asm"
|
||
INCLUDE "home/fade.asm"
|
||
INCLUDE "home/serial.asm"
|
||
INCLUDE "home/timer.asm"
|
||
INCLUDE "home/audio.asm"
|
||
|
||
|
||
UpdateSprites::
|
||
ld a, [wUpdateSpritesEnabled]
|
||
dec a
|
||
ret nz
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, Bank(_UpdateSprites)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call _UpdateSprites
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
INCLUDE "data/items/marts.asm"
|
||
|
||
TextScriptEndingChar::
|
||
db "@"
|
||
TextScriptEnd::
|
||
ld hl, TextScriptEndingChar
|
||
ret
|
||
|
||
ExclamationText::
|
||
TX_FAR _ExclamationText
|
||
db "@"
|
||
|
||
GroundRoseText::
|
||
TX_FAR _GroundRoseText
|
||
db "@"
|
||
|
||
BoulderText::
|
||
TX_FAR _BoulderText
|
||
db "@"
|
||
|
||
MartSignText::
|
||
TX_FAR _MartSignText
|
||
db "@"
|
||
|
||
PokeCenterSignText::
|
||
TX_FAR _PokeCenterSignText
|
||
db "@"
|
||
|
||
PickUpItemText::
|
||
TX_ASM
|
||
predef PickUpItem
|
||
jp TextScriptEnd
|
||
|
||
|
||
INCLUDE "home/pic.asm"
|
||
|
||
|
||
ResetPlayerSpriteData::
|
||
ld hl, wSpriteStateData1
|
||
call ResetPlayerSpriteData_ClearSpriteData
|
||
ld hl, wSpriteStateData2
|
||
call ResetPlayerSpriteData_ClearSpriteData
|
||
ld a, $1
|
||
ld [wSpriteStateData1], a
|
||
ld [wSpriteStateData2 + $0e], a
|
||
ld hl, wSpriteStateData1 + 4
|
||
ld [hl], $3c ; set Y screen pos
|
||
inc hl
|
||
inc hl
|
||
ld [hl], $40 ; set X screen pos
|
||
ret
|
||
|
||
; overwrites sprite data with zeroes
|
||
ResetPlayerSpriteData_ClearSpriteData::
|
||
ld bc, $10
|
||
xor a
|
||
jp FillMemory
|
||
|
||
FadeOutAudio::
|
||
ld a, [wAudioFadeOutControl]
|
||
and a ; currently fading out audio?
|
||
jr nz, .fadingOut
|
||
ld a, [wd72c]
|
||
bit 1, a
|
||
ret nz
|
||
ld a, $77
|
||
ld [rNR50], a
|
||
ret
|
||
.fadingOut
|
||
ld a, [wAudioFadeOutCounter]
|
||
and a
|
||
jr z, .counterReachedZero
|
||
dec a
|
||
ld [wAudioFadeOutCounter], a
|
||
ret
|
||
.counterReachedZero
|
||
ld a, [wAudioFadeOutCounterReloadValue]
|
||
ld [wAudioFadeOutCounter], a
|
||
ld a, [rNR50]
|
||
and a ; has the volume reached 0?
|
||
jr z, .fadeOutComplete
|
||
ld b, a
|
||
and $f
|
||
dec a
|
||
ld c, a
|
||
ld a, b
|
||
and $f0
|
||
swap a
|
||
dec a
|
||
swap a
|
||
or c
|
||
ld [rNR50], a
|
||
ret
|
||
.fadeOutComplete
|
||
ld a, [wAudioFadeOutControl]
|
||
ld b, a
|
||
xor a
|
||
ld [wAudioFadeOutControl], a
|
||
ld a, SFX_STOP_ALL_MUSIC
|
||
ld [wNewSoundID], a
|
||
call PlaySound
|
||
ld a, [wAudioSavedROMBank]
|
||
ld [wAudioROMBank], a
|
||
ld a, b
|
||
ld [wNewSoundID], a
|
||
jp PlaySound
|
||
|
||
; this function is used to display sign messages, sprite dialog, etc.
|
||
; INPUT: [hSpriteIndexOrTextID] = sprite ID or text ID
|
||
DisplayTextID::
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
callba DisplayTextIDInit ; initialization
|
||
ld hl, wTextPredefFlag
|
||
bit 0, [hl]
|
||
res 0, [hl]
|
||
jr nz, .skipSwitchToMapBank
|
||
ld a, [wCurMap]
|
||
call SwitchToMapRomBank
|
||
.skipSwitchToMapBank
|
||
ld a, 30 ; half a second
|
||
ld [hFrameCounter], a ; used as joypad poll timer
|
||
ld hl, wMapTextPtr
|
||
ld a, [hli]
|
||
ld h, [hl]
|
||
ld l, a ; hl = map text pointer
|
||
ld d, $00
|
||
ld a, [hSpriteIndexOrTextID] ; text ID
|
||
ld [wSpriteIndex], a
|
||
and a
|
||
jp z, DisplayStartMenu
|
||
cp TEXT_SAFARI_GAME_OVER
|
||
jp z, DisplaySafariGameOverText
|
||
cp TEXT_MON_FAINTED
|
||
jp z, DisplayPokemonFaintedText
|
||
cp TEXT_BLACKED_OUT
|
||
jp z, DisplayPlayerBlackedOutText
|
||
cp TEXT_REPEL_WORE_OFF
|
||
jp z, DisplayRepelWoreOffText
|
||
ld a, [wNumSprites]
|
||
ld e, a
|
||
ld a, [hSpriteIndexOrTextID] ; sprite ID
|
||
cp e
|
||
jr z, .spriteHandling
|
||
jr nc, .skipSpriteHandling
|
||
.spriteHandling
|
||
; get the text ID of the sprite
|
||
push hl
|
||
push de
|
||
push bc
|
||
callba UpdateSpriteFacingOffsetAndDelayMovement ; update the graphics of the sprite the player is talking to (to face the right direction)
|
||
pop bc
|
||
pop de
|
||
ld hl, wMapSpriteData ; NPC text entries
|
||
ld a, [hSpriteIndexOrTextID]
|
||
dec a
|
||
add a
|
||
add l
|
||
ld l, a
|
||
jr nc, .noCarry
|
||
inc h
|
||
.noCarry
|
||
inc hl
|
||
ld a, [hl] ; a = text ID of the sprite
|
||
pop hl
|
||
.skipSpriteHandling
|
||
; look up the address of the text in the map's text entries
|
||
dec a
|
||
ld e, a
|
||
sla e
|
||
add hl, de
|
||
ld a, [hli]
|
||
ld h, [hl]
|
||
ld l, a ; hl = address of the text
|
||
ld a, [hl] ; a = first byte of text
|
||
; check first byte of text for special cases
|
||
cp $fe ; Pokemart NPC
|
||
jp z, DisplayPokemartDialogue
|
||
cp $ff ; Pokemon Center NPC
|
||
jp z, DisplayPokemonCenterDialogue
|
||
cp $fc ; Item Storage PC
|
||
jp z, FuncTX_ItemStoragePC
|
||
cp $fd ; Bill's PC
|
||
jp z, FuncTX_BillsPC
|
||
cp $f9 ; Pokemon Center PC
|
||
jp z, FuncTX_PokemonCenterPC
|
||
cp $f5 ; Vending Machine
|
||
jr nz, .notVendingMachine
|
||
callba VendingMachineMenu ; jump banks to vending machine routine
|
||
jr AfterDisplayingTextID
|
||
.notVendingMachine
|
||
cp $f7 ; prize menu
|
||
jp z, FuncTX_GameCornerPrizeMenu
|
||
cp $f6 ; cable connection NPC in Pokemon Center
|
||
jr nz, .notSpecialCase
|
||
callab CableClubNPC
|
||
jr AfterDisplayingTextID
|
||
.notSpecialCase
|
||
call PrintText_NoCreatingTextBox ; display the text
|
||
ld a, [wDoNotWaitForButtonPressAfterDisplayingText]
|
||
and a
|
||
jr nz, HoldTextDisplayOpen
|
||
|
||
AfterDisplayingTextID::
|
||
ld a, [wEnteringCableClub]
|
||
and a
|
||
jr nz, HoldTextDisplayOpen
|
||
call WaitForTextScrollButtonPress ; wait for a button press after displaying all the text
|
||
|
||
; loop to hold the dialogue box open as long as the player keeps holding down the A button
|
||
HoldTextDisplayOpen::
|
||
call Joypad
|
||
ld a, [hJoyHeld]
|
||
bit 0, a ; is the A button being pressed?
|
||
jr nz, HoldTextDisplayOpen
|
||
|
||
CloseTextDisplay::
|
||
ld a, [wCurMap]
|
||
call SwitchToMapRomBank
|
||
ld a, $90
|
||
ld [hWY], a ; move the window off the screen
|
||
call DelayFrame
|
||
call LoadGBPal
|
||
xor a
|
||
ld [hAutoBGTransferEnabled], a ; disable continuous WRAM to VRAM transfer each V-blank
|
||
; loop to make sprites face the directions they originally faced before the dialogue
|
||
ld hl, wSpriteStateData2 + $19
|
||
ld c, $0f
|
||
ld de, $0010
|
||
.restoreSpriteFacingDirectionLoop
|
||
ld a, [hl]
|
||
dec h
|
||
ld [hl], a
|
||
inc h
|
||
add hl, de
|
||
dec c
|
||
jr nz, .restoreSpriteFacingDirectionLoop
|
||
ld a, BANK(InitMapSprites)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call InitMapSprites ; reload sprite tile pattern data (since it was partially overwritten by text tile patterns)
|
||
ld hl, wFontLoaded
|
||
res 0, [hl]
|
||
ld a, [wd732]
|
||
bit 3, a ; used fly warp
|
||
call z, LoadPlayerSpriteGraphics
|
||
call LoadCurrentMapView
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
jp UpdateSprites
|
||
|
||
DisplayPokemartDialogue::
|
||
push hl
|
||
ld hl, PokemartGreetingText
|
||
call PrintText
|
||
pop hl
|
||
inc hl
|
||
call LoadItemList
|
||
ld a, PRICEDITEMLISTMENU
|
||
ld [wListMenuID], a
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, Bank(DisplayPokemartDialogue_)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call DisplayPokemartDialogue_
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
jp AfterDisplayingTextID
|
||
|
||
PokemartGreetingText::
|
||
TX_FAR _PokemartGreetingText
|
||
db "@"
|
||
|
||
LoadItemList::
|
||
ld a, 1
|
||
ld [wUpdateSpritesEnabled], a
|
||
ld a, h
|
||
ld [wItemListPointer], a
|
||
ld a, l
|
||
ld [wItemListPointer + 1], a
|
||
ld de, wItemList
|
||
.loop
|
||
ld a, [hli]
|
||
ld [de], a
|
||
inc de
|
||
cp $ff
|
||
jr nz, .loop
|
||
ret
|
||
|
||
DisplayPokemonCenterDialogue::
|
||
; zeroing these doesn't appear to serve any purpose
|
||
xor a
|
||
ld [$ff8b], a
|
||
ld [$ff8c], a
|
||
ld [$ff8d], a
|
||
|
||
inc hl
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, Bank(DisplayPokemonCenterDialogue_)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call DisplayPokemonCenterDialogue_
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
jp AfterDisplayingTextID
|
||
|
||
DisplaySafariGameOverText::
|
||
callab PrintSafariGameOverText
|
||
jp AfterDisplayingTextID
|
||
|
||
DisplayPokemonFaintedText::
|
||
ld hl, PokemonFaintedText
|
||
call PrintText
|
||
jp AfterDisplayingTextID
|
||
|
||
PokemonFaintedText::
|
||
TX_FAR _PokemonFaintedText
|
||
db "@"
|
||
|
||
DisplayPlayerBlackedOutText::
|
||
ld hl, PlayerBlackedOutText
|
||
call PrintText
|
||
ld a, [wd732]
|
||
res 5, a ; reset forced to use bike bit
|
||
ld [wd732], a
|
||
jp HoldTextDisplayOpen
|
||
|
||
PlayerBlackedOutText::
|
||
TX_FAR _PlayerBlackedOutText
|
||
db "@"
|
||
|
||
DisplayRepelWoreOffText::
|
||
ld hl, RepelWoreOffText
|
||
call PrintText
|
||
jp AfterDisplayingTextID
|
||
|
||
RepelWoreOffText::
|
||
TX_FAR _RepelWoreOffText
|
||
db "@"
|
||
|
||
INCLUDE "home/start_menu.asm"
|
||
|
||
; function to count how many bits are set in a string of bytes
|
||
; INPUT:
|
||
; hl = address of string of bytes
|
||
; b = length of string of bytes
|
||
; OUTPUT:
|
||
; [wNumSetBits] = number of set bits
|
||
CountSetBits::
|
||
ld c, 0
|
||
.loop
|
||
ld a, [hli]
|
||
ld e, a
|
||
ld d, 8
|
||
.innerLoop ; count how many bits are set in the current byte
|
||
srl e
|
||
ld a, 0
|
||
adc c
|
||
ld c, a
|
||
dec d
|
||
jr nz, .innerLoop
|
||
dec b
|
||
jr nz, .loop
|
||
ld a, c
|
||
ld [wNumSetBits], a
|
||
ret
|
||
|
||
; subtracts the amount the player paid from their money
|
||
; OUTPUT: carry = 0(success) or 1(fail because there is not enough money)
|
||
SubtractAmountPaidFromMoney::
|
||
jpba SubtractAmountPaidFromMoney_
|
||
|
||
; adds the amount the player sold to their money
|
||
AddAmountSoldToMoney::
|
||
ld de, wPlayerMoney + 2
|
||
ld hl, hMoney + 2 ; total price of items
|
||
ld c, 3 ; length of money in bytes
|
||
predef AddBCDPredef ; add total price to money
|
||
ld a, MONEY_BOX
|
||
ld [wTextBoxID], a
|
||
call DisplayTextBoxID ; redraw money text box
|
||
ld a, SFX_PURCHASE
|
||
call PlaySoundWaitForCurrent
|
||
jp WaitForSoundToFinish
|
||
|
||
; function to remove an item (in varying quantities) from the player's bag or PC box
|
||
; INPUT:
|
||
; HL = address of inventory (either wNumBagItems or wNumBoxItems)
|
||
; [wWhichPokemon] = index (within the inventory) of the item to remove
|
||
; [wItemQuantity] = quantity to remove
|
||
RemoveItemFromInventory::
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, BANK(RemoveItemFromInventory_)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call RemoveItemFromInventory_
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
; function to add an item (in varying quantities) to the player's bag or PC box
|
||
; INPUT:
|
||
; HL = address of inventory (either wNumBagItems or wNumBoxItems)
|
||
; [wcf91] = item ID
|
||
; [wItemQuantity] = item quantity
|
||
; sets carry flag if successful, unsets carry flag if unsuccessful
|
||
AddItemToInventory::
|
||
push bc
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, BANK(AddItemToInventory_)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call AddItemToInventory_
|
||
pop bc
|
||
ld a, b
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
pop bc
|
||
ret
|
||
|
||
; INPUT:
|
||
; [wListMenuID] = list menu ID
|
||
; [wListPointer] = address of the list (2 bytes)
|
||
DisplayListMenuID::
|
||
xor a
|
||
ld [hAutoBGTransferEnabled], a ; disable auto-transfer
|
||
ld a, 1
|
||
ld [hJoy7], a ; joypad state update flag
|
||
ld a, [wBattleType]
|
||
and a ; is it the Old Man battle?
|
||
jr nz, .specialBattleType
|
||
ld a, $01 ; hardcoded bank
|
||
jr .bankswitch
|
||
.specialBattleType ; Old Man battle
|
||
ld a, BANK(DisplayBattleMenu)
|
||
.bankswitch
|
||
call BankswitchHome
|
||
ld hl, wd730
|
||
set 6, [hl] ; turn off letter printing delay
|
||
xor a
|
||
ld [wMenuItemToSwap], a ; 0 means no item is currently being swapped
|
||
ld [wListCount], a
|
||
ld a, [wListPointer]
|
||
ld l, a
|
||
ld a, [wListPointer + 1]
|
||
ld h, a ; hl = address of the list
|
||
ld a, [hl] ; the first byte is the number of entries in the list
|
||
ld [wListCount], a
|
||
ld a, LIST_MENU_BOX
|
||
ld [wTextBoxID], a
|
||
call DisplayTextBoxID ; draw the menu text box
|
||
call UpdateSprites ; disable sprites behind the text box
|
||
; the code up to .skipMovingSprites appears to be useless
|
||
coord hl, 4, 2 ; coordinates of upper left corner of menu text box
|
||
lb de, 9, 14 ; height and width of menu text box
|
||
ld a, [wListMenuID]
|
||
and a ; is it a PC pokemon list?
|
||
jr nz, .skipMovingSprites
|
||
call UpdateSprites
|
||
.skipMovingSprites
|
||
ld a, 1 ; max menu item ID is 1 if the list has less than 2 entries
|
||
ld [wMenuWatchMovingOutOfBounds], a
|
||
ld a, [wListCount]
|
||
cp 2 ; does the list have less than 2 entries?
|
||
jr c, .setMenuVariables
|
||
ld a, 2 ; max menu item ID is 2 if the list has at least 2 entries
|
||
.setMenuVariables
|
||
ld [wMaxMenuItem], a
|
||
ld a, 4
|
||
ld [wTopMenuItemY], a
|
||
ld a, 5
|
||
ld [wTopMenuItemX], a
|
||
ld a, A_BUTTON | B_BUTTON | SELECT
|
||
ld [wMenuWatchedKeys], a
|
||
ld c, 10
|
||
call DelayFrames
|
||
|
||
DisplayListMenuIDLoop::
|
||
xor a
|
||
ld [hAutoBGTransferEnabled], a ; disable transfer
|
||
call PrintListMenuEntries
|
||
ld a, 1
|
||
ld [hAutoBGTransferEnabled], a ; enable transfer
|
||
call Delay3
|
||
ld a, [wBattleType]
|
||
and a ; is it the Old Man battle?
|
||
jr z, .notOldManBattle
|
||
.oldManBattle
|
||
ld a, "▶"
|
||
Coorda 5, 4 ; place menu cursor in front of first menu entry
|
||
ld c, 80
|
||
call DelayFrames
|
||
xor a
|
||
ld [wCurrentMenuItem], a
|
||
coord hl, 5, 4
|
||
ld a, l
|
||
ld [wMenuCursorLocation], a
|
||
ld a, h
|
||
ld [wMenuCursorLocation + 1], a
|
||
jr .buttonAPressed
|
||
.notOldManBattle
|
||
call LoadGBPal
|
||
call HandleMenuInput
|
||
push af
|
||
call PlaceMenuCursor
|
||
pop af
|
||
bit 0, a ; was the A button pressed?
|
||
jp z, .checkOtherKeys
|
||
.buttonAPressed
|
||
ld a, [wCurrentMenuItem]
|
||
call PlaceUnfilledArrowMenuCursor
|
||
|
||
; pointless because both values are overwritten before they are read
|
||
ld a, $01
|
||
ld [wMenuExitMethod], a
|
||
ld [wChosenMenuItem], a
|
||
|
||
xor a
|
||
ld [wMenuWatchMovingOutOfBounds], a
|
||
ld a, [wCurrentMenuItem]
|
||
ld c, a
|
||
ld a, [wListScrollOffset]
|
||
add c
|
||
ld c, a
|
||
ld a, [wListCount]
|
||
and a ; is the list empty?
|
||
jp z, ExitListMenu ; if so, exit the menu
|
||
dec a
|
||
cp c ; did the player select Cancel?
|
||
jp c, ExitListMenu ; if so, exit the menu
|
||
ld a, c
|
||
ld [wWhichPokemon], a
|
||
ld a, [wListMenuID]
|
||
cp ITEMLISTMENU
|
||
jr nz, .skipMultiplying
|
||
; if it's an item menu
|
||
sla c ; item entries are 2 bytes long, so multiply by 2
|
||
.skipMultiplying
|
||
ld a, [wListPointer]
|
||
ld l, a
|
||
ld a, [wListPointer + 1]
|
||
ld h, a
|
||
inc hl ; hl = beginning of list entries
|
||
ld b, 0
|
||
add hl, bc
|
||
ld a, [hl]
|
||
ld [wcf91], a
|
||
ld a, [wListMenuID]
|
||
and a ; is it a PC pokemon list?
|
||
jr z, .pokemonList
|
||
push hl
|
||
call GetItemPrice
|
||
pop hl
|
||
ld a, [wListMenuID]
|
||
cp ITEMLISTMENU
|
||
jr nz, .skipGettingQuantity
|
||
; if it's an item menu
|
||
inc hl
|
||
ld a, [hl] ; a = item quantity
|
||
ld [wMaxItemQuantity], a
|
||
.skipGettingQuantity
|
||
ld a, [wcf91]
|
||
ld [wd0b5], a
|
||
ld a, BANK(ItemNames)
|
||
ld [wPredefBank], a
|
||
call GetName
|
||
jr .storeChosenEntry
|
||
.pokemonList
|
||
ld hl, wPartyCount
|
||
ld a, [wListPointer]
|
||
cp l ; is it a list of party pokemon or box pokemon?
|
||
ld hl, wPartyMonNicks
|
||
jr z, .getPokemonName
|
||
ld hl, wBoxMonNicks ; box pokemon names
|
||
.getPokemonName
|
||
ld a, [wWhichPokemon]
|
||
call GetPartyMonName
|
||
.storeChosenEntry ; store the menu entry that the player chose and return
|
||
ld de, wcd6d
|
||
call CopyStringToCF4B ; copy name to wcf4b
|
||
ld a, CHOSE_MENU_ITEM
|
||
ld [wMenuExitMethod], a
|
||
ld a, [wCurrentMenuItem]
|
||
ld [wChosenMenuItem], a
|
||
xor a
|
||
ld [hJoy7], a ; joypad state update flag
|
||
ld hl, wd730
|
||
res 6, [hl] ; turn on letter printing delay
|
||
jp BankswitchBack
|
||
.checkOtherKeys ; check B, SELECT, Up, and Down keys
|
||
bit 1, a ; was the B button pressed?
|
||
jp nz, ExitListMenu ; if so, exit the menu
|
||
bit 2, a ; was the select button pressed?
|
||
jp nz, HandleItemListSwapping ; if so, allow the player to swap menu entries
|
||
ld b, a
|
||
bit 7, b ; was Down pressed?
|
||
ld hl, wListScrollOffset
|
||
jr z, .upPressed
|
||
.downPressed
|
||
ld a, [hl]
|
||
add 3
|
||
ld b, a
|
||
ld a, [wListCount]
|
||
cp b ; will going down scroll past the Cancel button?
|
||
jp c, DisplayListMenuIDLoop
|
||
inc [hl] ; if not, go down
|
||
jp DisplayListMenuIDLoop
|
||
.upPressed
|
||
ld a, [hl]
|
||
and a
|
||
jp z, DisplayListMenuIDLoop
|
||
dec [hl]
|
||
jp DisplayListMenuIDLoop
|
||
|
||
DisplayChooseQuantityMenu::
|
||
; text box dimensions/coordinates for just quantity
|
||
coord hl, 15, 9
|
||
ld b, 1 ; height
|
||
ld c, 3 ; width
|
||
ld a, [wListMenuID]
|
||
cp PRICEDITEMLISTMENU
|
||
jr nz, .drawTextBox
|
||
; text box dimensions/coordinates for quantity and price
|
||
coord hl, 7, 9
|
||
ld b, 1 ; height
|
||
ld c, 11 ; width
|
||
.drawTextBox
|
||
call TextBoxBorder
|
||
coord hl, 16, 10
|
||
ld a, [wListMenuID]
|
||
cp PRICEDITEMLISTMENU
|
||
jr nz, .printInitialQuantity
|
||
coord hl, 8, 10
|
||
.printInitialQuantity
|
||
ld de, InitialQuantityText
|
||
call PlaceString
|
||
xor a
|
||
ld [wItemQuantity], a ; initialize current quantity to 0
|
||
jp .incrementQuantity
|
||
.waitForKeyPressLoop
|
||
call JoypadLowSensitivity
|
||
ld a, [hJoyPressed] ; newly pressed buttons
|
||
bit 0, a ; was the A button pressed?
|
||
jp nz, .buttonAPressed
|
||
bit 1, a ; was the B button pressed?
|
||
jp nz, .buttonBPressed
|
||
bit 6, a ; was Up pressed?
|
||
jr nz, .incrementQuantity
|
||
bit 7, a ; was Down pressed?
|
||
jr nz, .decrementQuantity
|
||
jr .waitForKeyPressLoop
|
||
.incrementQuantity
|
||
ld a, [wMaxItemQuantity]
|
||
inc a
|
||
ld b, a
|
||
ld hl, wItemQuantity ; current quantity
|
||
inc [hl]
|
||
ld a, [hl]
|
||
cp b
|
||
jr nz, .handleNewQuantity
|
||
; wrap to 1 if the player goes above the max quantity
|
||
ld a, 1
|
||
ld [hl], a
|
||
jr .handleNewQuantity
|
||
.decrementQuantity
|
||
ld hl, wItemQuantity ; current quantity
|
||
dec [hl]
|
||
jr nz, .handleNewQuantity
|
||
; wrap to the max quantity if the player goes below 1
|
||
ld a, [wMaxItemQuantity]
|
||
ld [hl], a
|
||
.handleNewQuantity
|
||
coord hl, 17, 10
|
||
ld a, [wListMenuID]
|
||
cp PRICEDITEMLISTMENU
|
||
jr nz, .printQuantity
|
||
.printPrice
|
||
ld c, $03
|
||
ld a, [wItemQuantity]
|
||
ld b, a
|
||
ld hl, hMoney ; total price
|
||
; initialize total price to 0
|
||
xor a
|
||
ld [hli], a
|
||
ld [hli], a
|
||
ld [hl], a
|
||
.addLoop ; loop to multiply the individual price by the quantity to get the total price
|
||
ld de, hMoney + 2
|
||
ld hl, hItemPrice + 2
|
||
push bc
|
||
predef AddBCDPredef ; add the individual price to the current sum
|
||
pop bc
|
||
dec b
|
||
jr nz, .addLoop
|
||
ld a, [hHalveItemPrices]
|
||
and a ; should the price be halved (for selling items)?
|
||
jr z, .skipHalvingPrice
|
||
xor a
|
||
ld [hDivideBCDDivisor], a
|
||
ld [hDivideBCDDivisor + 1], a
|
||
ld a, $02
|
||
ld [hDivideBCDDivisor + 2], a
|
||
predef DivideBCDPredef3 ; halves the price
|
||
; store the halved price
|
||
ld a, [hDivideBCDQuotient]
|
||
ld [hMoney], a
|
||
ld a, [hDivideBCDQuotient + 1]
|
||
ld [hMoney + 1], a
|
||
ld a, [hDivideBCDQuotient + 2]
|
||
ld [hMoney + 2], a
|
||
.skipHalvingPrice
|
||
coord hl, 12, 10
|
||
ld de, SpacesBetweenQuantityAndPriceText
|
||
call PlaceString
|
||
ld de, hMoney ; total price
|
||
ld c, $a3
|
||
call PrintBCDNumber
|
||
coord hl, 9, 10
|
||
.printQuantity
|
||
ld de, wItemQuantity ; current quantity
|
||
lb bc, LEADING_ZEROES | 1, 2 ; 1 byte, 2 digits
|
||
call PrintNumber
|
||
jp .waitForKeyPressLoop
|
||
.buttonAPressed ; the player chose to make the transaction
|
||
xor a
|
||
ld [wMenuItemToSwap], a ; 0 means no item is currently being swapped
|
||
ret
|
||
.buttonBPressed ; the player chose to cancel the transaction
|
||
xor a
|
||
ld [wMenuItemToSwap], a ; 0 means no item is currently being swapped
|
||
ld a, $ff
|
||
ret
|
||
|
||
InitialQuantityText::
|
||
db "×01@"
|
||
|
||
SpacesBetweenQuantityAndPriceText::
|
||
db " @"
|
||
|
||
ExitListMenu::
|
||
ld a, [wCurrentMenuItem]
|
||
ld [wChosenMenuItem], a
|
||
ld a, CANCELLED_MENU
|
||
ld [wMenuExitMethod], a
|
||
ld [wMenuWatchMovingOutOfBounds], a
|
||
xor a
|
||
ld [hJoy7], a
|
||
ld hl, wd730
|
||
res 6, [hl]
|
||
call BankswitchBack
|
||
xor a
|
||
ld [wMenuItemToSwap], a ; 0 means no item is currently being swapped
|
||
scf
|
||
ret
|
||
|
||
PrintListMenuEntries::
|
||
coord hl, 5, 3
|
||
ld b, 9
|
||
ld c, 14
|
||
call ClearScreenArea
|
||
ld a, [wListPointer]
|
||
ld e, a
|
||
ld a, [wListPointer + 1]
|
||
ld d, a
|
||
inc de ; de = beginning of list entries
|
||
ld a, [wListScrollOffset]
|
||
ld c, a
|
||
ld a, [wListMenuID]
|
||
cp ITEMLISTMENU
|
||
ld a, c
|
||
jr nz, .skipMultiplying
|
||
; if it's an item menu
|
||
; item entries are 2 bytes long, so multiply by 2
|
||
sla a
|
||
sla c
|
||
.skipMultiplying
|
||
add e
|
||
ld e, a
|
||
jr nc, .noCarry
|
||
inc d
|
||
.noCarry
|
||
coord hl, 6, 4 ; coordinates of first list entry name
|
||
ld b, 4 ; print 4 names
|
||
.loop
|
||
ld a, b
|
||
ld [wWhichPokemon], a
|
||
ld a, [de]
|
||
ld [wd11e], a
|
||
cp $ff
|
||
jp z, .printCancelMenuItem
|
||
push bc
|
||
push de
|
||
push hl
|
||
push hl
|
||
push de
|
||
ld a, [wListMenuID]
|
||
and a
|
||
jr z, .pokemonPCMenu
|
||
cp MOVESLISTMENU
|
||
jr z, .movesMenu
|
||
.itemMenu
|
||
call GetItemName
|
||
jr .placeNameString
|
||
.pokemonPCMenu
|
||
push hl
|
||
ld hl, wPartyCount
|
||
ld a, [wListPointer]
|
||
cp l ; is it a list of party pokemon or box pokemon?
|
||
ld hl, wPartyMonNicks
|
||
jr z, .getPokemonName
|
||
ld hl, wBoxMonNicks ; box pokemon names
|
||
.getPokemonName
|
||
ld a, [wWhichPokemon]
|
||
ld b, a
|
||
ld a, 4
|
||
sub b
|
||
ld b, a
|
||
ld a, [wListScrollOffset]
|
||
add b
|
||
call GetPartyMonName
|
||
pop hl
|
||
jr .placeNameString
|
||
.movesMenu
|
||
call GetMoveName
|
||
.placeNameString
|
||
call PlaceString
|
||
pop de
|
||
pop hl
|
||
ld a, [wPrintItemPrices]
|
||
and a ; should prices be printed?
|
||
jr z, .skipPrintingItemPrice
|
||
.printItemPrice
|
||
push hl
|
||
ld a, [de]
|
||
ld de, ItemPrices
|
||
ld [wcf91], a
|
||
call GetItemPrice ; get price
|
||
pop hl
|
||
ld bc, SCREEN_WIDTH + 5 ; 1 row down and 5 columns right
|
||
add hl, bc
|
||
ld c, $a3 ; no leading zeroes, right-aligned, print currency symbol, 3 bytes
|
||
call PrintBCDNumber
|
||
.skipPrintingItemPrice
|
||
ld a, [wListMenuID]
|
||
and a
|
||
jr nz, .skipPrintingPokemonLevel
|
||
.printPokemonLevel
|
||
ld a, [wd11e]
|
||
push af
|
||
push hl
|
||
ld hl, wPartyCount
|
||
ld a, [wListPointer]
|
||
cp l ; is it a list of party pokemon or box pokemon?
|
||
ld a, PLAYER_PARTY_DATA
|
||
jr z, .next
|
||
ld a, BOX_DATA
|
||
.next
|
||
ld [wMonDataLocation], a
|
||
ld hl, wWhichPokemon
|
||
ld a, [hl]
|
||
ld b, a
|
||
ld a, $04
|
||
sub b
|
||
ld b, a
|
||
ld a, [wListScrollOffset]
|
||
add b
|
||
ld [hl], a
|
||
call LoadMonData
|
||
ld a, [wMonDataLocation]
|
||
and a ; is it a list of party pokemon or box pokemon?
|
||
jr z, .skipCopyingLevel
|
||
.copyLevel
|
||
ld a, [wLoadedMonBoxLevel]
|
||
ld [wLoadedMonLevel], a
|
||
.skipCopyingLevel
|
||
pop hl
|
||
ld bc, $001c
|
||
add hl, bc
|
||
call PrintLevel
|
||
pop af
|
||
ld [wd11e], a
|
||
.skipPrintingPokemonLevel
|
||
pop hl
|
||
pop de
|
||
inc de
|
||
ld a, [wListMenuID]
|
||
cp ITEMLISTMENU
|
||
jr nz, .nextListEntry
|
||
.printItemQuantity
|
||
ld a, [wd11e]
|
||
ld [wcf91], a
|
||
call IsKeyItem ; check if item is unsellable
|
||
ld a, [wIsKeyItem]
|
||
and a ; is the item unsellable?
|
||
jr nz, .skipPrintingItemQuantity ; if so, don't print the quantity
|
||
push hl
|
||
ld bc, SCREEN_WIDTH + 8 ; 1 row down and 8 columns right
|
||
add hl, bc
|
||
ld a, "×"
|
||
ld [hli], a
|
||
ld a, [wd11e]
|
||
push af
|
||
ld a, [de]
|
||
ld [wMaxItemQuantity], a
|
||
push de
|
||
ld de, wd11e
|
||
ld [de], a
|
||
lb bc, 1, 2
|
||
call PrintNumber
|
||
pop de
|
||
pop af
|
||
ld [wd11e], a
|
||
pop hl
|
||
.skipPrintingItemQuantity
|
||
inc de
|
||
pop bc
|
||
inc c
|
||
push bc
|
||
inc c
|
||
ld a, [wMenuItemToSwap] ; ID of item chosen for swapping (counts from 1)
|
||
and a ; is an item being swapped?
|
||
jr z, .nextListEntry
|
||
sla a
|
||
cp c ; is it this item?
|
||
jr nz, .nextListEntry
|
||
dec hl
|
||
ld a, $ec ; unfilled right arrow menu cursor to indicate an item being swapped
|
||
ld [hli], a
|
||
.nextListEntry
|
||
ld bc, 2 * SCREEN_WIDTH ; 2 rows
|
||
add hl, bc
|
||
pop bc
|
||
inc c
|
||
dec b
|
||
jp nz, .loop
|
||
ld bc, -8
|
||
add hl, bc
|
||
ld a, "▼"
|
||
ld [hl], a
|
||
ret
|
||
.printCancelMenuItem
|
||
ld de, ListMenuCancelText
|
||
jp PlaceString
|
||
|
||
ListMenuCancelText::
|
||
db "CANCEL@"
|
||
|
||
GetMonName::
|
||
push hl
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, BANK(MonsterNames)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ld a, [wd11e]
|
||
dec a
|
||
ld hl, MonsterNames
|
||
ld c, 10
|
||
ld b, 0
|
||
call AddNTimes
|
||
ld de, wcd6d
|
||
push de
|
||
ld bc, 10
|
||
call CopyData
|
||
ld hl, wcd6d + 10
|
||
ld [hl], "@"
|
||
pop de
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
pop hl
|
||
ret
|
||
|
||
GetItemName::
|
||
; given an item ID at [wd11e], store the name of the item into a string
|
||
; starting at wcd6d
|
||
push hl
|
||
push bc
|
||
ld a, [wd11e]
|
||
cp HM_01 ; is this a TM/HM?
|
||
jr nc, .Machine
|
||
|
||
ld [wd0b5], a
|
||
ld a, ITEM_NAME
|
||
ld [wNameListType], a
|
||
ld a, BANK(ItemNames)
|
||
ld [wPredefBank], a
|
||
call GetName
|
||
jr .Finish
|
||
|
||
.Machine
|
||
call GetMachineName
|
||
.Finish
|
||
ld de, wcd6d ; pointer to where item name is stored in RAM
|
||
pop bc
|
||
pop hl
|
||
ret
|
||
|
||
GetMachineName::
|
||
; copies the name of the TM/HM in [wd11e] to wcd6d
|
||
push hl
|
||
push de
|
||
push bc
|
||
ld a, [wd11e]
|
||
push af
|
||
cp TM_01 ; is this a TM? [not HM]
|
||
jr nc, .WriteTM
|
||
; if HM, then write "HM" and add 5 to the item ID, so we can reuse the
|
||
; TM printing code
|
||
add 5
|
||
ld [wd11e], a
|
||
ld hl, HiddenPrefix ; points to "HM"
|
||
ld bc, 2
|
||
jr .WriteMachinePrefix
|
||
.WriteTM
|
||
ld hl, TechnicalPrefix ; points to "TM"
|
||
ld bc, 2
|
||
.WriteMachinePrefix
|
||
ld de, wcd6d
|
||
call CopyData
|
||
|
||
; now get the machine number and convert it to text
|
||
ld a, [wd11e]
|
||
sub TM_01 - 1
|
||
ld b, "0"
|
||
.FirstDigit
|
||
sub 10
|
||
jr c, .SecondDigit
|
||
inc b
|
||
jr .FirstDigit
|
||
.SecondDigit
|
||
add 10
|
||
push af
|
||
ld a, b
|
||
ld [de], a
|
||
inc de
|
||
pop af
|
||
ld b, "0"
|
||
add b
|
||
ld [de], a
|
||
inc de
|
||
ld a, "@"
|
||
ld [de], a
|
||
pop af
|
||
ld [wd11e], a
|
||
pop bc
|
||
pop de
|
||
pop hl
|
||
ret
|
||
|
||
TechnicalPrefix::
|
||
db "TM"
|
||
HiddenPrefix::
|
||
db "HM"
|
||
|
||
; sets carry if item is HM, clears carry if item is not HM
|
||
; Input: a = item ID
|
||
IsItemHM::
|
||
cp HM_01
|
||
jr c, .notHM
|
||
cp TM_01
|
||
ret
|
||
.notHM
|
||
and a
|
||
ret
|
||
|
||
; sets carry if move is an HM, clears carry if move is not an HM
|
||
; Input: a = move ID
|
||
IsMoveHM::
|
||
ld hl, HMMoves
|
||
ld de, 1
|
||
jp IsInArray
|
||
|
||
HMMoves::
|
||
db CUT,FLY,SURF,STRENGTH,FLASH
|
||
db $ff ; terminator
|
||
|
||
GetMoveName::
|
||
push hl
|
||
ld a, MOVE_NAME
|
||
ld [wNameListType], a
|
||
ld a, [wd11e]
|
||
ld [wd0b5], a
|
||
ld a, BANK(MoveNames)
|
||
ld [wPredefBank], a
|
||
call GetName
|
||
ld de, wcd6d ; pointer to where move name is stored in RAM
|
||
pop hl
|
||
ret
|
||
|
||
; reloads text box tile patterns, current map view, and tileset tile patterns
|
||
ReloadMapData::
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, [wCurMap]
|
||
call SwitchToMapRomBank
|
||
call DisableLCD
|
||
call LoadTextBoxTilePatterns
|
||
call LoadCurrentMapView
|
||
call LoadTilesetTilePatternData
|
||
call EnableLCD
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
; reloads tileset tile patterns
|
||
ReloadTilesetTilePatterns::
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, [wCurMap]
|
||
call SwitchToMapRomBank
|
||
call DisableLCD
|
||
call LoadTilesetTilePatternData
|
||
call EnableLCD
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
; shows the town map and lets the player choose a destination to fly to
|
||
ChooseFlyDestination::
|
||
ld hl, wd72e
|
||
res 4, [hl]
|
||
jpba LoadTownMap_Fly
|
||
|
||
; causes the text box to close without waiting for a button press after displaying text
|
||
DisableWaitingAfterTextDisplay::
|
||
ld a, $01
|
||
ld [wDoNotWaitForButtonPressAfterDisplayingText], a
|
||
ret
|
||
|
||
; uses an item
|
||
; UseItem is used with dummy items to perform certain other functions as well
|
||
; INPUT:
|
||
; [wcf91] = item ID
|
||
; OUTPUT:
|
||
; [wActionResultOrTookBattleTurn] = success
|
||
; 00: unsuccessful
|
||
; 01: successful
|
||
; 02: not able to be used right now, no extra menu displayed (only certain items use this)
|
||
UseItem::
|
||
jpba UseItem_
|
||
|
||
; confirms the item toss and then tosses the item
|
||
; INPUT:
|
||
; hl = address of inventory (either wNumBagItems or wNumBoxItems)
|
||
; [wcf91] = item ID
|
||
; [wWhichPokemon] = index of item within inventory
|
||
; [wItemQuantity] = quantity to toss
|
||
; OUTPUT:
|
||
; clears carry flag if the item is tossed, sets carry flag if not
|
||
TossItem::
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, BANK(TossItem_)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call TossItem_
|
||
pop de
|
||
ld a, d
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
; checks if an item is a key item
|
||
; INPUT:
|
||
; [wcf91] = item ID
|
||
; OUTPUT:
|
||
; [wIsKeyItem] = result
|
||
; 00: item is not key item
|
||
; 01: item is key item
|
||
IsKeyItem::
|
||
push hl
|
||
push de
|
||
push bc
|
||
callba IsKeyItem_
|
||
pop bc
|
||
pop de
|
||
pop hl
|
||
ret
|
||
|
||
; function to draw various text boxes
|
||
; INPUT:
|
||
; [wTextBoxID] = text box ID
|
||
; b, c = y, x cursor position (TWO_OPTION_MENU only)
|
||
DisplayTextBoxID::
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, BANK(DisplayTextBoxID_)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call DisplayTextBoxID_
|
||
pop bc
|
||
ld a, b
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
; not zero if an NPC movement script is running, the player character is
|
||
; automatically stepping down from a door, or joypad states are being simulated
|
||
IsPlayerCharacterBeingControlledByGame::
|
||
ld a, [wNPCMovementScriptPointerTableNum]
|
||
and a
|
||
ret nz
|
||
ld a, [wd736]
|
||
bit 1, a ; currently stepping down from door bit
|
||
ret nz
|
||
ld a, [wd730]
|
||
and $80
|
||
ret
|
||
|
||
RunNPCMovementScript::
|
||
ld hl, wd736
|
||
bit 0, [hl]
|
||
res 0, [hl]
|
||
jr nz, .playerStepOutFromDoor
|
||
ld a, [wNPCMovementScriptPointerTableNum]
|
||
and a
|
||
ret z
|
||
dec a
|
||
add a
|
||
ld d, 0
|
||
ld e, a
|
||
ld hl, .NPCMovementScriptPointerTables
|
||
add hl, de
|
||
ld a, [hli]
|
||
ld h, [hl]
|
||
ld l, a
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, [wNPCMovementScriptBank]
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ld a, [wNPCMovementScriptFunctionNum]
|
||
call CallFunctionInTable
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
.NPCMovementScriptPointerTables
|
||
dw PalletMovementScriptPointerTable
|
||
dw PewterMuseumGuyMovementScriptPointerTable
|
||
dw PewterGymGuyMovementScriptPointerTable
|
||
.playerStepOutFromDoor
|
||
jpba PlayerStepOutFromDoor
|
||
|
||
EndNPCMovementScript::
|
||
jpba _EndNPCMovementScript
|
||
|
||
EmptyFunc2::
|
||
ret
|
||
|
||
; stores hl in [wTrainerHeaderPtr]
|
||
StoreTrainerHeaderPointer::
|
||
ld a, h
|
||
ld [wTrainerHeaderPtr], a
|
||
ld a, l
|
||
ld [wTrainerHeaderPtr+1], a
|
||
ret
|
||
|
||
; executes the current map script from the function pointer array provided in hl.
|
||
; a: map script index to execute (unless overridden by [wd733] bit 4)
|
||
ExecuteCurMapScriptInTable::
|
||
push af
|
||
push de
|
||
call StoreTrainerHeaderPointer
|
||
pop hl
|
||
pop af
|
||
push hl
|
||
ld hl, wFlags_D733
|
||
bit 4, [hl]
|
||
res 4, [hl]
|
||
jr z, .useProvidedIndex ; test if map script index was overridden manually
|
||
ld a, [wCurMapScript]
|
||
.useProvidedIndex
|
||
pop hl
|
||
ld [wCurMapScript], a
|
||
call CallFunctionInTable
|
||
ld a, [wCurMapScript]
|
||
ret
|
||
|
||
LoadGymLeaderAndCityName::
|
||
push de
|
||
ld de, wGymCityName
|
||
ld bc, $11
|
||
call CopyData ; load city name
|
||
pop hl
|
||
ld de, wGymLeaderName
|
||
ld bc, NAME_LENGTH
|
||
jp CopyData ; load gym leader name
|
||
|
||
; reads specific information from trainer header (pointed to at wTrainerHeaderPtr)
|
||
; a: offset in header data
|
||
; 0 -> flag's bit (into wTrainerHeaderFlagBit)
|
||
; 2 -> flag's byte ptr (into hl)
|
||
; 4 -> before battle text (into hl)
|
||
; 6 -> after battle text (into hl)
|
||
; 8 -> end battle text (into hl)
|
||
ReadTrainerHeaderInfo::
|
||
push de
|
||
push af
|
||
ld d, $0
|
||
ld e, a
|
||
ld hl, wTrainerHeaderPtr
|
||
ld a, [hli]
|
||
ld l, [hl]
|
||
ld h, a
|
||
add hl, de
|
||
pop af
|
||
and a
|
||
jr nz, .nonZeroOffset
|
||
ld a, [hl]
|
||
ld [wTrainerHeaderFlagBit], a ; store flag's bit
|
||
jr .done
|
||
.nonZeroOffset
|
||
cp $2
|
||
jr z, .readPointer ; read flag's byte ptr
|
||
cp $4
|
||
jr z, .readPointer ; read before battle text
|
||
cp $6
|
||
jr z, .readPointer ; read after battle text
|
||
cp $8
|
||
jr z, .readPointer ; read end battle text
|
||
cp $a
|
||
jr nz, .done
|
||
ld a, [hli] ; read end battle text (2) but override the result afterwards (XXX why, bug?)
|
||
ld d, [hl]
|
||
ld e, a
|
||
jr .done
|
||
.readPointer
|
||
ld a, [hli]
|
||
ld h, [hl]
|
||
ld l, a
|
||
.done
|
||
pop de
|
||
ret
|
||
|
||
TrainerFlagAction::
|
||
predef_jump FlagActionPredef
|
||
|
||
TalkToTrainer::
|
||
call StoreTrainerHeaderPointer
|
||
xor a
|
||
call ReadTrainerHeaderInfo ; read flag's bit
|
||
ld a, $2
|
||
call ReadTrainerHeaderInfo ; read flag's byte ptr
|
||
ld a, [wTrainerHeaderFlagBit]
|
||
ld c, a
|
||
ld b, FLAG_TEST
|
||
call TrainerFlagAction ; read trainer's flag
|
||
ld a, c
|
||
and a
|
||
jr z, .trainerNotYetFought ; test trainer's flag
|
||
ld a, $6
|
||
call ReadTrainerHeaderInfo ; print after battle text
|
||
jp PrintText
|
||
.trainerNotYetFought
|
||
ld a, $4
|
||
call ReadTrainerHeaderInfo ; print before battle text
|
||
call PrintText
|
||
ld a, $a
|
||
call ReadTrainerHeaderInfo ; (?) does nothing apparently (maybe bug in ReadTrainerHeaderInfo)
|
||
push de
|
||
ld a, $8
|
||
call ReadTrainerHeaderInfo ; read end battle text
|
||
pop de
|
||
call SaveEndBattleTextPointers
|
||
ld hl, wFlags_D733
|
||
set 4, [hl] ; activate map script index override (index is set below)
|
||
ld hl, wFlags_0xcd60
|
||
bit 0, [hl] ; test if player is already engaging the trainer (because the trainer saw the player)
|
||
ret nz
|
||
; if the player talked to the trainer of his own volition
|
||
call EngageMapTrainer
|
||
ld hl, wCurMapScript
|
||
inc [hl] ; increment map script index before StartTrainerBattle increments it again (next script function is usually EndTrainerBattle)
|
||
jp StartTrainerBattle
|
||
|
||
; checks if any trainers are seeing the player and wanting to fight
|
||
CheckFightingMapTrainers::
|
||
call CheckForEngagingTrainers
|
||
ld a, [wSpriteIndex]
|
||
cp $ff
|
||
jr nz, .trainerEngaging
|
||
xor a
|
||
ld [wSpriteIndex], a
|
||
ld [wTrainerHeaderFlagBit], a
|
||
ret
|
||
.trainerEngaging
|
||
ld hl, wFlags_D733
|
||
set 3, [hl]
|
||
ld [wEmotionBubbleSpriteIndex], a
|
||
xor a ; EXCLAMATION_BUBBLE
|
||
ld [wWhichEmotionBubble], a
|
||
predef EmotionBubble
|
||
ld a, D_RIGHT | D_LEFT | D_UP | D_DOWN
|
||
ld [wJoyIgnore], a
|
||
xor a
|
||
ld [hJoyHeld], a
|
||
call TrainerWalkUpToPlayer_Bank0
|
||
ld hl, wCurMapScript
|
||
inc [hl] ; increment map script index (next script function is usually DisplayEnemyTrainerTextAndStartBattle)
|
||
ret
|
||
|
||
; display the before battle text after the enemy trainer has walked up to the player's sprite
|
||
DisplayEnemyTrainerTextAndStartBattle::
|
||
ld a, [wd730]
|
||
and $1
|
||
ret nz ; return if the enemy trainer hasn't finished walking to the player's sprite
|
||
ld [wJoyIgnore], a
|
||
ld a, [wSpriteIndex]
|
||
ld [hSpriteIndexOrTextID], a
|
||
call DisplayTextID
|
||
; fall through
|
||
|
||
StartTrainerBattle::
|
||
xor a
|
||
ld [wJoyIgnore], a
|
||
call InitBattleEnemyParameters
|
||
ld hl, wd72d
|
||
set 6, [hl]
|
||
set 7, [hl]
|
||
ld hl, wd72e
|
||
set 1, [hl]
|
||
ld hl, wCurMapScript
|
||
inc [hl] ; increment map script index (next script function is usually EndTrainerBattle)
|
||
ret
|
||
|
||
EndTrainerBattle::
|
||
ld hl, wCurrentMapScriptFlags
|
||
set 5, [hl]
|
||
set 6, [hl]
|
||
ld hl, wd72d
|
||
res 7, [hl]
|
||
ld hl, wFlags_0xcd60
|
||
res 0, [hl] ; player is no longer engaged by any trainer
|
||
ld a, [wIsInBattle]
|
||
cp $ff
|
||
jp z, ResetButtonPressedAndMapScript
|
||
ld a, $2
|
||
call ReadTrainerHeaderInfo
|
||
ld a, [wTrainerHeaderFlagBit]
|
||
ld c, a
|
||
ld b, FLAG_SET
|
||
call TrainerFlagAction ; flag trainer as fought
|
||
ld a, [wEnemyMonOrTrainerClass]
|
||
cp OPP_ID_OFFSET
|
||
jr nc, .skipRemoveSprite ; test if trainer was fought (in that case skip removing the corresponding sprite)
|
||
ld hl, wMissableObjectList
|
||
ld de, $2
|
||
ld a, [wSpriteIndex]
|
||
call IsInArray ; search for sprite ID
|
||
inc hl
|
||
ld a, [hl]
|
||
ld [wMissableObjectIndex], a ; load corresponding missable object index and remove it
|
||
predef HideObject
|
||
.skipRemoveSprite
|
||
ld hl, wd730
|
||
bit 4, [hl]
|
||
res 4, [hl]
|
||
ret nz
|
||
|
||
ResetButtonPressedAndMapScript::
|
||
xor a
|
||
ld [wJoyIgnore], a
|
||
ld [hJoyHeld], a
|
||
ld [hJoyPressed], a
|
||
ld [hJoyReleased], a
|
||
ld [wCurMapScript], a ; reset battle status
|
||
ret
|
||
|
||
; calls TrainerWalkUpToPlayer
|
||
TrainerWalkUpToPlayer_Bank0::
|
||
jpba TrainerWalkUpToPlayer
|
||
|
||
; sets opponent type and mon set/lvl based on the engaging trainer data
|
||
InitBattleEnemyParameters::
|
||
ld a, [wEngagedTrainerClass]
|
||
ld [wCurOpponent], a
|
||
ld [wEnemyMonOrTrainerClass], a
|
||
cp OPP_ID_OFFSET
|
||
ld a, [wEngagedTrainerSet]
|
||
jr c, .noTrainer
|
||
ld [wTrainerNo], a
|
||
ret
|
||
.noTrainer
|
||
ld [wCurEnemyLVL], a
|
||
ret
|
||
|
||
GetSpritePosition1::
|
||
ld hl, _GetSpritePosition1
|
||
jr SpritePositionBankswitch
|
||
|
||
GetSpritePosition2::
|
||
ld hl, _GetSpritePosition2
|
||
jr SpritePositionBankswitch
|
||
|
||
SetSpritePosition1::
|
||
ld hl, _SetSpritePosition1
|
||
jr SpritePositionBankswitch
|
||
|
||
SetSpritePosition2::
|
||
ld hl, _SetSpritePosition2
|
||
SpritePositionBankswitch::
|
||
ld b, BANK(_GetSpritePosition1) ; BANK(_GetSpritePosition2), BANK(_SetSpritePosition1), BANK(_SetSpritePosition2)
|
||
jp Bankswitch ; indirect jump to one of the four functions
|
||
|
||
CheckForEngagingTrainers::
|
||
xor a
|
||
call ReadTrainerHeaderInfo ; read trainer flag's bit (unused)
|
||
ld d, h ; store trainer header address in de
|
||
ld e, l
|
||
.trainerLoop
|
||
call StoreTrainerHeaderPointer ; set trainer header pointer to current trainer
|
||
ld a, [de]
|
||
ld [wSpriteIndex], a ; store trainer flag's bit
|
||
ld [wTrainerHeaderFlagBit], a
|
||
cp $ff
|
||
ret z
|
||
ld a, $2
|
||
call ReadTrainerHeaderInfo ; read trainer flag's byte ptr
|
||
ld b, FLAG_TEST
|
||
ld a, [wTrainerHeaderFlagBit]
|
||
ld c, a
|
||
call TrainerFlagAction ; read trainer flag
|
||
ld a, c
|
||
and a ; has the trainer already been defeated?
|
||
jr nz, .continue
|
||
push hl
|
||
push de
|
||
push hl
|
||
xor a
|
||
call ReadTrainerHeaderInfo ; get trainer header pointer
|
||
inc hl
|
||
ld a, [hl] ; read trainer engage distance
|
||
pop hl
|
||
ld [wTrainerEngageDistance], a
|
||
ld a, [wSpriteIndex]
|
||
swap a
|
||
ld [wTrainerSpriteOffset], a
|
||
predef TrainerEngage
|
||
pop de
|
||
pop hl
|
||
ld a, [wTrainerSpriteOffset]
|
||
and a
|
||
ret nz ; break if the trainer is engaging
|
||
.continue
|
||
ld hl, $c
|
||
add hl, de
|
||
ld d, h
|
||
ld e, l
|
||
jr .trainerLoop
|
||
|
||
; hl = text if the player wins
|
||
; de = text if the player loses
|
||
SaveEndBattleTextPointers::
|
||
ld a, [hLoadedROMBank]
|
||
ld [wEndBattleTextRomBank], a
|
||
ld a, h
|
||
ld [wEndBattleWinTextPointer], a
|
||
ld a, l
|
||
ld [wEndBattleWinTextPointer + 1], a
|
||
ld a, d
|
||
ld [wEndBattleLoseTextPointer], a
|
||
ld a, e
|
||
ld [wEndBattleLoseTextPointer + 1], a
|
||
ret
|
||
|
||
; loads data of some trainer on the current map and plays pre-battle music
|
||
; [wSpriteIndex]: sprite ID of trainer who is engaged
|
||
EngageMapTrainer::
|
||
ld hl, wMapSpriteExtraData
|
||
ld d, $0
|
||
ld a, [wSpriteIndex]
|
||
dec a
|
||
add a
|
||
ld e, a
|
||
add hl, de ; seek to engaged trainer data
|
||
ld a, [hli] ; load trainer class
|
||
ld [wEngagedTrainerClass], a
|
||
ld a, [hl] ; load trainer mon set
|
||
ld [wEngagedTrainerSet], a
|
||
jp PlayTrainerMusic
|
||
|
||
PrintEndBattleText::
|
||
push hl
|
||
ld hl, wd72d
|
||
bit 7, [hl]
|
||
res 7, [hl]
|
||
pop hl
|
||
ret z
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, [wEndBattleTextRomBank]
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
push hl
|
||
callba SaveTrainerName
|
||
ld hl, TrainerEndBattleText
|
||
call PrintText
|
||
pop hl
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
callba FreezeEnemyTrainerSprite
|
||
jp WaitForSoundToFinish
|
||
|
||
GetSavedEndBattleTextPointer::
|
||
ld a, [wBattleResult]
|
||
and a
|
||
; won battle
|
||
jr nz, .lostBattle
|
||
ld a, [wEndBattleWinTextPointer]
|
||
ld h, a
|
||
ld a, [wEndBattleWinTextPointer + 1]
|
||
ld l, a
|
||
ret
|
||
.lostBattle
|
||
ld a, [wEndBattleLoseTextPointer]
|
||
ld h, a
|
||
ld a, [wEndBattleLoseTextPointer + 1]
|
||
ld l, a
|
||
ret
|
||
|
||
TrainerEndBattleText::
|
||
TX_FAR _TrainerNameText
|
||
TX_ASM
|
||
call GetSavedEndBattleTextPointer
|
||
call TextCommandProcessor
|
||
jp TextScriptEnd
|
||
|
||
; only engage withe trainer if the player is not already
|
||
; engaged with another trainer
|
||
; XXX unused?
|
||
CheckIfAlreadyEngaged::
|
||
ld a, [wFlags_0xcd60]
|
||
bit 0, a
|
||
ret nz
|
||
call EngageMapTrainer
|
||
xor a
|
||
ret
|
||
|
||
PlayTrainerMusic::
|
||
ld a, [wEngagedTrainerClass]
|
||
cp OPP_SONY1
|
||
ret z
|
||
cp OPP_SONY2
|
||
ret z
|
||
cp OPP_SONY3
|
||
ret z
|
||
ld a, [wGymLeaderNo]
|
||
and a
|
||
ret nz
|
||
xor a
|
||
ld [wAudioFadeOutControl], a
|
||
ld a, SFX_STOP_ALL_MUSIC
|
||
call PlaySound
|
||
ld a, BANK(Music_MeetEvilTrainer)
|
||
ld [wAudioROMBank], a
|
||
ld [wAudioSavedROMBank], a
|
||
ld a, [wEngagedTrainerClass]
|
||
ld b, a
|
||
ld hl, EvilTrainerList
|
||
.evilTrainerListLoop
|
||
ld a, [hli]
|
||
cp $ff
|
||
jr z, .noEvilTrainer
|
||
cp b
|
||
jr nz, .evilTrainerListLoop
|
||
ld a, MUSIC_MEET_EVIL_TRAINER
|
||
jr .PlaySound
|
||
.noEvilTrainer
|
||
ld hl, FemaleTrainerList
|
||
.femaleTrainerListLoop
|
||
ld a, [hli]
|
||
cp $ff
|
||
jr z, .maleTrainer
|
||
cp b
|
||
jr nz, .femaleTrainerListLoop
|
||
ld a, MUSIC_MEET_FEMALE_TRAINER
|
||
jr .PlaySound
|
||
.maleTrainer
|
||
ld a, MUSIC_MEET_MALE_TRAINER
|
||
.PlaySound
|
||
ld [wNewSoundID], a
|
||
jp PlaySound
|
||
|
||
INCLUDE "data/trainers/encounter_types.asm"
|
||
|
||
; checks if the player's coordinates match an arrow movement tile's coordinates
|
||
; and if so, decodes the RLE movement data
|
||
; b = player Y
|
||
; c = player X
|
||
DecodeArrowMovementRLE::
|
||
ld a, [hli]
|
||
cp $ff
|
||
ret z ; no match in the list
|
||
cp b
|
||
jr nz, .nextArrowMovementTileEntry1
|
||
ld a, [hli]
|
||
cp c
|
||
jr nz, .nextArrowMovementTileEntry2
|
||
ld a, [hli]
|
||
ld d, [hl]
|
||
ld e, a
|
||
ld hl, wSimulatedJoypadStatesEnd
|
||
call DecodeRLEList
|
||
dec a
|
||
ld [wSimulatedJoypadStatesIndex], a
|
||
ret
|
||
.nextArrowMovementTileEntry1
|
||
inc hl
|
||
.nextArrowMovementTileEntry2
|
||
inc hl
|
||
inc hl
|
||
jr DecodeArrowMovementRLE
|
||
|
||
FuncTX_ItemStoragePC::
|
||
call SaveScreenTilesToBuffer2
|
||
ld b, BANK(PlayerPC)
|
||
ld hl, PlayerPC
|
||
jr bankswitchAndContinue
|
||
|
||
FuncTX_BillsPC::
|
||
call SaveScreenTilesToBuffer2
|
||
ld b, BANK(BillsPC_)
|
||
ld hl, BillsPC_
|
||
jr bankswitchAndContinue
|
||
|
||
FuncTX_GameCornerPrizeMenu::
|
||
; XXX find a better name for this function
|
||
; special_F7
|
||
ld b, BANK(CeladonPrizeMenu)
|
||
ld hl, CeladonPrizeMenu
|
||
bankswitchAndContinue::
|
||
call Bankswitch
|
||
jp HoldTextDisplayOpen ; continue to main text-engine function
|
||
|
||
FuncTX_PokemonCenterPC::
|
||
ld b, BANK(ActivatePC)
|
||
ld hl, ActivatePC
|
||
jr bankswitchAndContinue
|
||
|
||
StartSimulatingJoypadStates::
|
||
xor a
|
||
ld [wOverrideSimulatedJoypadStatesMask], a
|
||
ld [wSpriteStateData2 + $06], a ; player's sprite movement byte 1
|
||
ld hl, wd730
|
||
set 7, [hl]
|
||
ret
|
||
|
||
IsItemInBag::
|
||
; given an item_id in b
|
||
; set zero flag if item isn't in player's bag
|
||
; else reset zero flag
|
||
; related to Pokémon Tower and ghosts
|
||
predef GetQuantityOfItemInBag
|
||
ld a, b
|
||
and a
|
||
ret
|
||
|
||
DisplayPokedex::
|
||
ld [wd11e], a
|
||
jpba _DisplayPokedex
|
||
|
||
SetSpriteFacingDirectionAndDelay::
|
||
call SetSpriteFacingDirection
|
||
ld c, 6
|
||
jp DelayFrames
|
||
|
||
SetSpriteFacingDirection::
|
||
ld a, $9
|
||
ld [hSpriteDataOffset], a
|
||
call GetPointerWithinSpriteStateData1
|
||
ld a, [hSpriteFacingDirection]
|
||
ld [hl], a
|
||
ret
|
||
|
||
SetSpriteImageIndexAfterSettingFacingDirection::
|
||
ld de, -7
|
||
add hl, de
|
||
ld [hl], a
|
||
ret
|
||
|
||
; tests if the player's coordinates are in a specified array
|
||
; INPUT:
|
||
; hl = address of array
|
||
; OUTPUT:
|
||
; [wCoordIndex] = if there is match, the matching array index
|
||
; sets carry if the coordinates are in the array, clears carry if not
|
||
ArePlayerCoordsInArray::
|
||
ld a, [wYCoord]
|
||
ld b, a
|
||
ld a, [wXCoord]
|
||
ld c, a
|
||
; fallthrough
|
||
|
||
CheckCoords::
|
||
xor a
|
||
ld [wCoordIndex], a
|
||
.loop
|
||
ld a, [hli]
|
||
cp $ff ; reached terminator?
|
||
jr z, .notInArray
|
||
push hl
|
||
ld hl, wCoordIndex
|
||
inc [hl]
|
||
pop hl
|
||
.compareYCoord
|
||
cp b
|
||
jr z, .compareXCoord
|
||
inc hl
|
||
jr .loop
|
||
.compareXCoord
|
||
ld a, [hli]
|
||
cp c
|
||
jr nz, .loop
|
||
.inArray
|
||
scf
|
||
ret
|
||
.notInArray
|
||
and a
|
||
ret
|
||
|
||
; tests if a boulder's coordinates are in a specified array
|
||
; INPUT:
|
||
; hl = address of array
|
||
; [hSpriteIndex] = index of boulder sprite
|
||
; OUTPUT:
|
||
; [wCoordIndex] = if there is match, the matching array index
|
||
; sets carry if the coordinates are in the array, clears carry if not
|
||
CheckBoulderCoords::
|
||
push hl
|
||
ld hl, wSpriteStateData2 + $04
|
||
ld a, [hSpriteIndex]
|
||
swap a
|
||
ld d, $0
|
||
ld e, a
|
||
add hl, de
|
||
ld a, [hli]
|
||
sub $4 ; because sprite coordinates are offset by 4
|
||
ld b, a
|
||
ld a, [hl]
|
||
sub $4 ; because sprite coordinates are offset by 4
|
||
ld c, a
|
||
pop hl
|
||
jp CheckCoords
|
||
|
||
GetPointerWithinSpriteStateData1::
|
||
ld h, $c1
|
||
jr _GetPointerWithinSpriteStateData
|
||
|
||
GetPointerWithinSpriteStateData2::
|
||
ld h, $c2
|
||
|
||
_GetPointerWithinSpriteStateData:
|
||
ld a, [hSpriteDataOffset]
|
||
ld b, a
|
||
ld a, [hSpriteIndex]
|
||
swap a
|
||
add b
|
||
ld l, a
|
||
ret
|
||
|
||
; decodes a $ff-terminated RLEncoded list
|
||
; each entry is a pair of bytes <byte value> <repetitions>
|
||
; the final $ff will be replicated in the output list and a contains the number of bytes written
|
||
; de: input list
|
||
; hl: output list
|
||
DecodeRLEList::
|
||
xor a
|
||
ld [wRLEByteCount], a ; count written bytes here
|
||
.listLoop
|
||
ld a, [de]
|
||
cp $ff
|
||
jr z, .endOfList
|
||
ld [hRLEByteValue], a ; store byte value to be written
|
||
inc de
|
||
ld a, [de]
|
||
ld b, $0
|
||
ld c, a ; number of bytes to be written
|
||
ld a, [wRLEByteCount]
|
||
add c
|
||
ld [wRLEByteCount], a ; update total number of written bytes
|
||
ld a, [hRLEByteValue]
|
||
call FillMemory ; write a c-times to output
|
||
inc de
|
||
jr .listLoop
|
||
.endOfList
|
||
ld a, $ff
|
||
ld [hl], a ; write final $ff
|
||
ld a, [wRLEByteCount]
|
||
inc a ; include sentinel in counting
|
||
ret
|
||
|
||
; sets movement byte 1 for sprite [hSpriteIndex] to $FE and byte 2 to [hSpriteMovementByte2]
|
||
SetSpriteMovementBytesToFE::
|
||
push hl
|
||
call GetSpriteMovementByte1Pointer
|
||
ld [hl], $fe
|
||
call GetSpriteMovementByte2Pointer
|
||
ld a, [hSpriteMovementByte2]
|
||
ld [hl], a
|
||
pop hl
|
||
ret
|
||
|
||
; sets both movement bytes for sprite [hSpriteIndex] to $FF
|
||
SetSpriteMovementBytesToFF::
|
||
push hl
|
||
call GetSpriteMovementByte1Pointer
|
||
ld [hl], $FF
|
||
call GetSpriteMovementByte2Pointer
|
||
ld [hl], $FF ; prevent person from walking?
|
||
pop hl
|
||
ret
|
||
|
||
; returns the sprite movement byte 1 pointer for sprite [hSpriteIndex] in hl
|
||
GetSpriteMovementByte1Pointer::
|
||
ld h, $C2
|
||
ld a, [hSpriteIndex]
|
||
swap a
|
||
add 6
|
||
ld l, a
|
||
ret
|
||
|
||
; returns the sprite movement byte 2 pointer for sprite [hSpriteIndex] in hl
|
||
GetSpriteMovementByte2Pointer::
|
||
push de
|
||
ld hl, wMapSpriteData
|
||
ld a, [hSpriteIndex]
|
||
dec a
|
||
add a
|
||
ld d, 0
|
||
ld e, a
|
||
add hl, de
|
||
pop de
|
||
ret
|
||
|
||
GetTrainerInformation::
|
||
call GetTrainerName
|
||
ld a, [wLinkState]
|
||
and a
|
||
jr nz, .linkBattle
|
||
ld a, Bank(TrainerPicAndMoneyPointers)
|
||
call BankswitchHome
|
||
ld a, [wTrainerClass]
|
||
dec a
|
||
ld hl, TrainerPicAndMoneyPointers
|
||
ld bc, $5
|
||
call AddNTimes
|
||
ld de, wTrainerPicPointer
|
||
ld a, [hli]
|
||
ld [de], a
|
||
inc de
|
||
ld a, [hli]
|
||
ld [de], a
|
||
ld de, wTrainerBaseMoney
|
||
ld a, [hli]
|
||
ld [de], a
|
||
inc de
|
||
ld a, [hli]
|
||
ld [de], a
|
||
jp BankswitchBack
|
||
.linkBattle
|
||
ld hl, wTrainerPicPointer
|
||
ld de, RedPicFront
|
||
ld [hl], e
|
||
inc hl
|
||
ld [hl], d
|
||
ret
|
||
|
||
GetTrainerName::
|
||
jpba GetTrainerName_
|
||
|
||
HasEnoughMoney::
|
||
; Check if the player has at least as much
|
||
; money as the 3-byte BCD value at hMoney.
|
||
ld de, wPlayerMoney
|
||
ld hl, hMoney
|
||
ld c, 3
|
||
jp StringCmp
|
||
|
||
HasEnoughCoins::
|
||
; Check if the player has at least as many
|
||
; coins as the 2-byte BCD value at hCoins.
|
||
ld de, wPlayerCoins
|
||
ld hl, hCoins
|
||
ld c, 2
|
||
jp StringCmp
|
||
|
||
|
||
BankswitchHome::
|
||
; switches to bank # in a
|
||
; Only use this when in the home bank!
|
||
ld [wBankswitchHomeTemp], a
|
||
ld a, [hLoadedROMBank]
|
||
ld [wBankswitchHomeSavedROMBank], a
|
||
ld a, [wBankswitchHomeTemp]
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
BankswitchBack::
|
||
; returns from BankswitchHome
|
||
ld a, [wBankswitchHomeSavedROMBank]
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
Bankswitch::
|
||
; self-contained bankswitch, use this when not in the home bank
|
||
; switches to the bank in b
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, b
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ld bc, .Return
|
||
push bc
|
||
jp hl
|
||
.Return
|
||
pop bc
|
||
ld a, b
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
; displays yes/no choice
|
||
; yes -> set carry
|
||
YesNoChoice::
|
||
call SaveScreenTilesToBuffer1
|
||
call InitYesNoTextBoxParameters
|
||
jr DisplayYesNoChoice
|
||
|
||
Func_35f4::
|
||
ld a, TWO_OPTION_MENU
|
||
ld [wTextBoxID], a
|
||
call InitYesNoTextBoxParameters
|
||
jp DisplayTextBoxID
|
||
|
||
InitYesNoTextBoxParameters::
|
||
xor a ; YES_NO_MENU
|
||
ld [wTwoOptionMenuID], a
|
||
coord hl, 14, 7
|
||
ld bc, $80f
|
||
ret
|
||
|
||
YesNoChoicePokeCenter::
|
||
call SaveScreenTilesToBuffer1
|
||
ld a, HEAL_CANCEL_MENU
|
||
ld [wTwoOptionMenuID], a
|
||
coord hl, 11, 6
|
||
lb bc, 8, 12
|
||
jr DisplayYesNoChoice
|
||
|
||
WideYesNoChoice:: ; unused
|
||
call SaveScreenTilesToBuffer1
|
||
ld a, WIDE_YES_NO_MENU
|
||
ld [wTwoOptionMenuID], a
|
||
coord hl, 12, 7
|
||
lb bc, 8, 13
|
||
|
||
DisplayYesNoChoice::
|
||
ld a, TWO_OPTION_MENU
|
||
ld [wTextBoxID], a
|
||
call DisplayTextBoxID
|
||
jp LoadScreenTilesFromBuffer1
|
||
|
||
; calculates the difference |a-b|, setting carry flag if a<b
|
||
CalcDifference::
|
||
sub b
|
||
ret nc
|
||
cpl
|
||
add $1
|
||
scf
|
||
ret
|
||
|
||
MoveSprite::
|
||
; move the sprite [hSpriteIndex] with the movement pointed to by de
|
||
; actually only copies the movement data to wNPCMovementDirections for later
|
||
call SetSpriteMovementBytesToFF
|
||
MoveSprite_::
|
||
push hl
|
||
push bc
|
||
call GetSpriteMovementByte1Pointer
|
||
xor a
|
||
ld [hl], a
|
||
ld hl, wNPCMovementDirections
|
||
ld c, 0
|
||
|
||
.loop
|
||
ld a, [de]
|
||
ld [hli], a
|
||
inc de
|
||
inc c
|
||
cp $FF ; have we reached the end of the movement data?
|
||
jr nz, .loop
|
||
|
||
ld a, c
|
||
ld [wNPCNumScriptedSteps], a ; number of steps taken
|
||
|
||
pop bc
|
||
ld hl, wd730
|
||
set 0, [hl]
|
||
pop hl
|
||
xor a
|
||
ld [wOverrideSimulatedJoypadStatesMask], a
|
||
ld [wSimulatedJoypadStatesEnd], a
|
||
dec a
|
||
ld [wJoyIgnore], a
|
||
ld [wWastedByteCD3A], a
|
||
ret
|
||
|
||
; divides [hDividend2] by [hDivisor2] and stores the quotient in [hQuotient2]
|
||
DivideBytes::
|
||
push hl
|
||
ld hl, hQuotient2
|
||
xor a
|
||
ld [hld], a
|
||
ld a, [hld]
|
||
and a
|
||
jr z, .done
|
||
ld a, [hli]
|
||
.loop
|
||
sub [hl]
|
||
jr c, .done
|
||
inc hl
|
||
inc [hl]
|
||
dec hl
|
||
jr .loop
|
||
.done
|
||
pop hl
|
||
ret
|
||
|
||
|
||
LoadFontTilePatterns::
|
||
ld a, [rLCDC]
|
||
bit 7, a ; is the LCD enabled?
|
||
jr nz, .on
|
||
.off
|
||
ld hl, FontGraphics
|
||
ld de, vFont
|
||
ld bc, FontGraphicsEnd - FontGraphics
|
||
ld a, BANK(FontGraphics)
|
||
jp FarCopyDataDouble ; if LCD is off, transfer all at once
|
||
.on
|
||
ld de, FontGraphics
|
||
ld hl, vFont
|
||
lb bc, BANK(FontGraphics), (FontGraphicsEnd - FontGraphics) / $8
|
||
jp CopyVideoDataDouble ; if LCD is on, transfer during V-blank
|
||
|
||
LoadTextBoxTilePatterns::
|
||
ld a, [rLCDC]
|
||
bit 7, a ; is the LCD enabled?
|
||
jr nz, .on
|
||
.off
|
||
ld hl, TextBoxGraphics
|
||
ld de, vChars2 + $600
|
||
ld bc, TextBoxGraphicsEnd - TextBoxGraphics
|
||
ld a, BANK(TextBoxGraphics)
|
||
jp FarCopyData2 ; if LCD is off, transfer all at once
|
||
.on
|
||
ld de, TextBoxGraphics
|
||
ld hl, vChars2 + $600
|
||
lb bc, BANK(TextBoxGraphics), (TextBoxGraphicsEnd - TextBoxGraphics) / $10
|
||
jp CopyVideoData ; if LCD is on, transfer during V-blank
|
||
|
||
LoadHpBarAndStatusTilePatterns::
|
||
ld a, [rLCDC]
|
||
bit 7, a ; is the LCD enabled?
|
||
jr nz, .on
|
||
.off
|
||
ld hl, HpBarAndStatusGraphics
|
||
ld de, vChars2 + $620
|
||
ld bc, HpBarAndStatusGraphicsEnd - HpBarAndStatusGraphics
|
||
ld a, BANK(HpBarAndStatusGraphics)
|
||
jp FarCopyData2 ; if LCD is off, transfer all at once
|
||
.on
|
||
ld de, HpBarAndStatusGraphics
|
||
ld hl, vChars2 + $620
|
||
lb bc, BANK(HpBarAndStatusGraphics), (HpBarAndStatusGraphicsEnd - HpBarAndStatusGraphics) / $10
|
||
jp CopyVideoData ; if LCD is on, transfer during V-blank
|
||
|
||
|
||
FillMemory::
|
||
; Fill bc bytes at hl with a.
|
||
push de
|
||
ld d, a
|
||
.loop
|
||
ld a, d
|
||
ld [hli], a
|
||
dec bc
|
||
ld a, b
|
||
or c
|
||
jr nz, .loop
|
||
pop de
|
||
ret
|
||
|
||
|
||
UncompressSpriteFromDE::
|
||
; Decompress pic at a:de.
|
||
ld hl, wSpriteInputPtr
|
||
ld [hl], e
|
||
inc hl
|
||
ld [hl], d
|
||
jp UncompressSpriteData
|
||
|
||
SaveScreenTilesToBuffer2::
|
||
coord hl, 0, 0
|
||
ld de, wTileMapBackup2
|
||
ld bc, SCREEN_WIDTH * SCREEN_HEIGHT
|
||
call CopyData
|
||
ret
|
||
|
||
LoadScreenTilesFromBuffer2::
|
||
call LoadScreenTilesFromBuffer2DisableBGTransfer
|
||
ld a, 1
|
||
ld [hAutoBGTransferEnabled], a
|
||
ret
|
||
|
||
; loads screen tiles stored in wTileMapBackup2 but leaves hAutoBGTransferEnabled disabled
|
||
LoadScreenTilesFromBuffer2DisableBGTransfer::
|
||
xor a
|
||
ld [hAutoBGTransferEnabled], a
|
||
ld hl, wTileMapBackup2
|
||
coord de, 0, 0
|
||
ld bc, SCREEN_WIDTH * SCREEN_HEIGHT
|
||
call CopyData
|
||
ret
|
||
|
||
SaveScreenTilesToBuffer1::
|
||
coord hl, 0, 0
|
||
ld de, wTileMapBackup
|
||
ld bc, SCREEN_WIDTH * SCREEN_HEIGHT
|
||
jp CopyData
|
||
|
||
LoadScreenTilesFromBuffer1::
|
||
xor a
|
||
ld [hAutoBGTransferEnabled], a
|
||
ld hl, wTileMapBackup
|
||
coord de, 0, 0
|
||
ld bc, SCREEN_WIDTH * SCREEN_HEIGHT
|
||
call CopyData
|
||
ld a, 1
|
||
ld [hAutoBGTransferEnabled], a
|
||
ret
|
||
|
||
DelayFrames::
|
||
; wait c frames
|
||
call DelayFrame
|
||
dec c
|
||
jr nz, DelayFrames
|
||
ret
|
||
|
||
PlaySoundWaitForCurrent::
|
||
push af
|
||
call WaitForSoundToFinish
|
||
pop af
|
||
jp PlaySound
|
||
|
||
; Wait for sound to finish playing
|
||
WaitForSoundToFinish::
|
||
ld a, [wLowHealthAlarm]
|
||
and $80
|
||
ret nz
|
||
push hl
|
||
.waitLoop
|
||
ld hl, wChannelSoundIDs + Ch5
|
||
xor a
|
||
or [hl]
|
||
inc hl
|
||
or [hl]
|
||
inc hl
|
||
inc hl
|
||
or [hl]
|
||
jr nz, .waitLoop
|
||
pop hl
|
||
ret
|
||
|
||
NamePointers::
|
||
dw MonsterNames
|
||
dw MoveNames
|
||
dw UnusedNames
|
||
dw ItemNames
|
||
dw wPartyMonOT ; player's OT names list
|
||
dw wEnemyMonOT ; enemy's OT names list
|
||
dw TrainerNames
|
||
|
||
GetName::
|
||
; arguments:
|
||
; [wd0b5] = which name
|
||
; [wNameListType] = which list
|
||
; [wPredefBank] = bank of list
|
||
;
|
||
; returns pointer to name in de
|
||
ld a, [wd0b5]
|
||
ld [wd11e], a
|
||
|
||
; TM names are separate from item names.
|
||
; BUG: This applies to all names instead of just items.
|
||
cp HM_01
|
||
jp nc, GetMachineName
|
||
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
push hl
|
||
push bc
|
||
push de
|
||
ld a, [wNameListType] ;List3759_entrySelector
|
||
dec a
|
||
jr nz, .otherEntries
|
||
;1 = MON_NAMES
|
||
call GetMonName
|
||
ld hl, NAME_LENGTH
|
||
add hl, de
|
||
ld e, l
|
||
ld d, h
|
||
jr .gotPtr
|
||
.otherEntries
|
||
;2-7 = OTHER ENTRIES
|
||
ld a, [wPredefBank]
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ld a, [wNameListType] ;VariousNames' entryID
|
||
dec a
|
||
add a
|
||
ld d, 0
|
||
ld e, a
|
||
jr nc, .skip
|
||
inc d
|
||
.skip
|
||
ld hl, NamePointers
|
||
add hl, de
|
||
ld a, [hli]
|
||
ld [$ff96], a
|
||
ld a, [hl]
|
||
ld [$ff95], a
|
||
ld a, [$ff95]
|
||
ld h, a
|
||
ld a, [$ff96]
|
||
ld l, a
|
||
ld a, [wd0b5]
|
||
ld b, a
|
||
ld c, 0
|
||
.nextName
|
||
ld d, h
|
||
ld e, l
|
||
.nextChar
|
||
ld a, [hli]
|
||
cp "@"
|
||
jr nz, .nextChar
|
||
inc c ;entry counter
|
||
ld a, b ;wanted entry
|
||
cp c
|
||
jr nz, .nextName
|
||
ld h, d
|
||
ld l, e
|
||
ld de, wcd6d
|
||
ld bc, $0014
|
||
call CopyData
|
||
.gotPtr
|
||
ld a, e
|
||
ld [wUnusedCF8D], a
|
||
ld a, d
|
||
ld [wUnusedCF8D + 1], a
|
||
pop de
|
||
pop bc
|
||
pop hl
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
GetItemPrice::
|
||
; Stores item's price as BCD at hItemPrice (3 bytes)
|
||
; Input: [wcf91] = item id
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, [wListMenuID]
|
||
cp MOVESLISTMENU
|
||
ld a, BANK(ItemPrices)
|
||
jr nz, .ok
|
||
ld a, $f ; hardcoded Bank
|
||
.ok
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ld hl, wItemPrices
|
||
ld a, [hli]
|
||
ld h, [hl]
|
||
ld l, a
|
||
ld a, [wcf91] ; a contains item id
|
||
cp HM_01
|
||
jr nc, .getTMPrice
|
||
ld bc, $3
|
||
.loop
|
||
add hl, bc
|
||
dec a
|
||
jr nz, .loop
|
||
dec hl
|
||
ld a, [hld]
|
||
ld [hItemPrice + 2], a
|
||
ld a, [hld]
|
||
ld [hItemPrice + 1], a
|
||
ld a, [hl]
|
||
ld [hItemPrice], a
|
||
jr .done
|
||
.getTMPrice
|
||
ld a, Bank(GetMachinePrice)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call GetMachinePrice
|
||
.done
|
||
ld de, hItemPrice
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
; copies a string from [de] to [wcf4b]
|
||
CopyStringToCF4B::
|
||
ld hl, wcf4b
|
||
; fall through
|
||
|
||
; copies a string from [de] to [hl]
|
||
CopyString::
|
||
ld a, [de]
|
||
inc de
|
||
ld [hli], a
|
||
cp "@"
|
||
jr nz, CopyString
|
||
ret
|
||
|
||
; this function is used when lower button sensitivity is wanted (e.g. menus)
|
||
; OUTPUT: [hJoy5] = pressed buttons in usual format
|
||
; there are two flags that control its functionality, [hJoy6] and [hJoy7]
|
||
; there are essentially three modes of operation
|
||
; 1. Get newly pressed buttons only
|
||
; ([hJoy7] == 0, [hJoy6] == any)
|
||
; Just copies [hJoyPressed] to [hJoy5].
|
||
; 2. Get currently pressed buttons at low sample rate with delay
|
||
; ([hJoy7] == 1, [hJoy6] != 0)
|
||
; If the user holds down buttons for more than half a second,
|
||
; report buttons as being pressed up to 12 times per second thereafter.
|
||
; If the user holds down buttons for less than half a second,
|
||
; report only one button press.
|
||
; 3. Same as 2, but report no buttons as pressed if A or B is held down.
|
||
; ([hJoy7] == 1, [hJoy6] == 0)
|
||
JoypadLowSensitivity::
|
||
call Joypad
|
||
ld a, [hJoy7] ; flag
|
||
and a ; get all currently pressed buttons or only newly pressed buttons?
|
||
ld a, [hJoyPressed] ; newly pressed buttons
|
||
jr z, .storeButtonState
|
||
ld a, [hJoyHeld] ; all currently pressed buttons
|
||
.storeButtonState
|
||
ld [hJoy5], a
|
||
ld a, [hJoyPressed] ; newly pressed buttons
|
||
and a ; have any buttons been newly pressed since last check?
|
||
jr z, .noNewlyPressedButtons
|
||
.newlyPressedButtons
|
||
ld a, 30 ; half a second delay
|
||
ld [hFrameCounter], a
|
||
ret
|
||
.noNewlyPressedButtons
|
||
ld a, [hFrameCounter]
|
||
and a ; is the delay over?
|
||
jr z, .delayOver
|
||
.delayNotOver
|
||
xor a
|
||
ld [hJoy5], a ; report no buttons as pressed
|
||
ret
|
||
.delayOver
|
||
; if [hJoy6] = 0 and A or B is pressed, report no buttons as pressed
|
||
ld a, [hJoyHeld]
|
||
and A_BUTTON | B_BUTTON
|
||
jr z, .setShortDelay
|
||
ld a, [hJoy6] ; flag
|
||
and a
|
||
jr nz, .setShortDelay
|
||
xor a
|
||
ld [hJoy5], a
|
||
.setShortDelay
|
||
ld a, 5 ; 1/12 of a second delay
|
||
ld [hFrameCounter], a
|
||
ret
|
||
|
||
WaitForTextScrollButtonPress::
|
||
ld a, [hDownArrowBlinkCount1]
|
||
push af
|
||
ld a, [hDownArrowBlinkCount2]
|
||
push af
|
||
xor a
|
||
ld [hDownArrowBlinkCount1], a
|
||
ld a, $6
|
||
ld [hDownArrowBlinkCount2], a
|
||
.loop
|
||
push hl
|
||
ld a, [wTownMapSpriteBlinkingEnabled]
|
||
and a
|
||
jr z, .skipAnimation
|
||
call TownMapSpriteBlinkingAnimation
|
||
.skipAnimation
|
||
coord hl, 18, 16
|
||
call HandleDownArrowBlinkTiming
|
||
pop hl
|
||
call JoypadLowSensitivity
|
||
predef CableClub_Run
|
||
ld a, [hJoy5]
|
||
and A_BUTTON | B_BUTTON
|
||
jr z, .loop
|
||
pop af
|
||
ld [hDownArrowBlinkCount2], a
|
||
pop af
|
||
ld [hDownArrowBlinkCount1], a
|
||
ret
|
||
|
||
; (unless in link battle) waits for A or B being pressed and outputs the scrolling sound effect
|
||
ManualTextScroll::
|
||
ld a, [wLinkState]
|
||
cp LINK_STATE_BATTLING
|
||
jr z, .inLinkBattle
|
||
call WaitForTextScrollButtonPress
|
||
ld a, SFX_PRESS_AB
|
||
jp PlaySound
|
||
.inLinkBattle
|
||
ld c, 65
|
||
jp DelayFrames
|
||
|
||
; function to do multiplication
|
||
; all values are big endian
|
||
; INPUT
|
||
; FF96-FF98 = multiplicand
|
||
; FF99 = multiplier
|
||
; OUTPUT
|
||
; FF95-FF98 = product
|
||
Multiply::
|
||
push hl
|
||
push bc
|
||
callab _Multiply
|
||
pop bc
|
||
pop hl
|
||
ret
|
||
|
||
; function to do division
|
||
; all values are big endian
|
||
; INPUT
|
||
; FF95-FF98 = dividend
|
||
; FF99 = divisor
|
||
; b = number of bytes in the dividend (starting from FF95)
|
||
; OUTPUT
|
||
; FF95-FF98 = quotient
|
||
; FF99 = remainder
|
||
Divide::
|
||
push hl
|
||
push de
|
||
push bc
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, Bank(_Divide)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call _Divide
|
||
pop af
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
pop bc
|
||
pop de
|
||
pop hl
|
||
ret
|
||
|
||
; This function is used to wait a short period after printing a letter to the
|
||
; screen unless the player presses the A/B button or the delay is turned off
|
||
; through the [wd730] or [wLetterPrintingDelayFlags] flags.
|
||
PrintLetterDelay::
|
||
ld a, [wd730]
|
||
bit 6, a
|
||
ret nz
|
||
ld a, [wLetterPrintingDelayFlags]
|
||
bit 1, a
|
||
ret z
|
||
push hl
|
||
push de
|
||
push bc
|
||
ld a, [wLetterPrintingDelayFlags]
|
||
bit 0, a
|
||
jr z, .waitOneFrame
|
||
ld a, [wOptions]
|
||
and $f
|
||
ld [hFrameCounter], a
|
||
jr .checkButtons
|
||
.waitOneFrame
|
||
ld a, 1
|
||
ld [hFrameCounter], a
|
||
.checkButtons
|
||
call Joypad
|
||
ld a, [hJoyHeld]
|
||
.checkAButton
|
||
bit 0, a ; is the A button pressed?
|
||
jr z, .checkBButton
|
||
jr .endWait
|
||
.checkBButton
|
||
bit 1, a ; is the B button pressed?
|
||
jr z, .buttonsNotPressed
|
||
.endWait
|
||
call DelayFrame
|
||
jr .done
|
||
.buttonsNotPressed ; if neither A nor B is pressed
|
||
ld a, [hFrameCounter]
|
||
and a
|
||
jr nz, .checkButtons
|
||
.done
|
||
pop bc
|
||
pop de
|
||
pop hl
|
||
ret
|
||
|
||
; Copies [hl, bc) to [de, de + bc - hl).
|
||
; In other words, the source data is from hl up to but not including bc,
|
||
; and the destination is de.
|
||
CopyDataUntil::
|
||
ld a, [hli]
|
||
ld [de], a
|
||
inc de
|
||
ld a, h
|
||
cp b
|
||
jr nz, CopyDataUntil
|
||
ld a, l
|
||
cp c
|
||
jr nz, CopyDataUntil
|
||
ret
|
||
|
||
; Function to remove a pokemon from the party or the current box.
|
||
; wWhichPokemon determines the pokemon.
|
||
; [wRemoveMonFromBox] == 0 specifies the party.
|
||
; [wRemoveMonFromBox] != 0 specifies the current box.
|
||
RemovePokemon::
|
||
jpab _RemovePokemon
|
||
|
||
AddPartyMon::
|
||
push hl
|
||
push de
|
||
push bc
|
||
callba _AddPartyMon
|
||
pop bc
|
||
pop de
|
||
pop hl
|
||
ret
|
||
|
||
; calculates all 5 stats of current mon and writes them to [de]
|
||
CalcStats::
|
||
ld c, $0
|
||
.statsLoop
|
||
inc c
|
||
call CalcStat
|
||
ld a, [hMultiplicand+1]
|
||
ld [de], a
|
||
inc de
|
||
ld a, [hMultiplicand+2]
|
||
ld [de], a
|
||
inc de
|
||
ld a, c
|
||
cp NUM_STATS
|
||
jr nz, .statsLoop
|
||
ret
|
||
|
||
; calculates stat c of current mon
|
||
; c: stat to calc (HP=1,Atk=2,Def=3,Spd=4,Spc=5)
|
||
; b: consider stat exp?
|
||
; hl: base ptr to stat exp values ([hl + 2*c - 1] and [hl + 2*c])
|
||
CalcStat::
|
||
push hl
|
||
push de
|
||
push bc
|
||
ld a, b
|
||
ld d, a
|
||
push hl
|
||
ld hl, wMonHeader
|
||
ld b, $0
|
||
add hl, bc
|
||
ld a, [hl] ; read base value of stat
|
||
ld e, a
|
||
pop hl
|
||
push hl
|
||
sla c
|
||
ld a, d
|
||
and a
|
||
jr z, .statExpDone ; consider stat exp?
|
||
add hl, bc ; skip to corresponding stat exp value
|
||
.statExpLoop ; calculates ceil(Sqrt(stat exp)) in b
|
||
xor a
|
||
ld [hMultiplicand], a
|
||
ld [hMultiplicand+1], a
|
||
inc b ; increment current stat exp bonus
|
||
ld a, b
|
||
cp $ff
|
||
jr z, .statExpDone
|
||
ld [hMultiplicand+2], a
|
||
ld [hMultiplier], a
|
||
call Multiply
|
||
ld a, [hld]
|
||
ld d, a
|
||
ld a, [$ff98]
|
||
sub d
|
||
ld a, [hli]
|
||
ld d, a
|
||
ld a, [$ff97]
|
||
sbc d ; test if (current stat exp bonus)^2 < stat exp
|
||
jr c, .statExpLoop
|
||
.statExpDone
|
||
srl c
|
||
pop hl
|
||
push bc
|
||
ld bc, wPartyMon1DVs - (wPartyMon1HPExp - 1) ; also wEnemyMonDVs - wEnemyMonHP
|
||
add hl, bc
|
||
pop bc
|
||
ld a, c
|
||
cp $2
|
||
jr z, .getAttackIV
|
||
cp $3
|
||
jr z, .getDefenseIV
|
||
cp $4
|
||
jr z, .getSpeedIV
|
||
cp $5
|
||
jr z, .getSpecialIV
|
||
.getHpIV
|
||
push bc
|
||
ld a, [hl] ; Atk IV
|
||
swap a
|
||
and $1
|
||
sla a
|
||
sla a
|
||
sla a
|
||
ld b, a
|
||
ld a, [hli] ; Def IV
|
||
and $1
|
||
sla a
|
||
sla a
|
||
add b
|
||
ld b, a
|
||
ld a, [hl] ; Spd IV
|
||
swap a
|
||
and $1
|
||
sla a
|
||
add b
|
||
ld b, a
|
||
ld a, [hl] ; Spc IV
|
||
and $1
|
||
add b ; HP IV: LSB of the other 4 IVs
|
||
pop bc
|
||
jr .calcStatFromIV
|
||
.getAttackIV
|
||
ld a, [hl]
|
||
swap a
|
||
and $f
|
||
jr .calcStatFromIV
|
||
.getDefenseIV
|
||
ld a, [hl]
|
||
and $f
|
||
jr .calcStatFromIV
|
||
.getSpeedIV
|
||
inc hl
|
||
ld a, [hl]
|
||
swap a
|
||
and $f
|
||
jr .calcStatFromIV
|
||
.getSpecialIV
|
||
inc hl
|
||
ld a, [hl]
|
||
and $f
|
||
.calcStatFromIV
|
||
ld d, $0
|
||
add e
|
||
ld e, a
|
||
jr nc, .noCarry
|
||
inc d ; de = Base + IV
|
||
.noCarry
|
||
sla e
|
||
rl d ; de = (Base + IV) * 2
|
||
srl b
|
||
srl b ; b = ceil(Sqrt(stat exp)) / 4
|
||
ld a, b
|
||
add e
|
||
jr nc, .noCarry2
|
||
inc d ; de = (Base + IV) * 2 + ceil(Sqrt(stat exp)) / 4
|
||
.noCarry2
|
||
ld [hMultiplicand+2], a
|
||
ld a, d
|
||
ld [hMultiplicand+1], a
|
||
xor a
|
||
ld [hMultiplicand], a
|
||
ld a, [wCurEnemyLVL]
|
||
ld [hMultiplier], a
|
||
call Multiply ; ((Base + IV) * 2 + ceil(Sqrt(stat exp)) / 4) * Level
|
||
ld a, [hMultiplicand]
|
||
ld [hDividend], a
|
||
ld a, [hMultiplicand+1]
|
||
ld [hDividend+1], a
|
||
ld a, [hMultiplicand+2]
|
||
ld [hDividend+2], a
|
||
ld a, $64
|
||
ld [hDivisor], a
|
||
ld a, $3
|
||
ld b, a
|
||
call Divide ; (((Base + IV) * 2 + ceil(Sqrt(stat exp)) / 4) * Level) / 100
|
||
ld a, c
|
||
cp $1
|
||
ld a, 5 ; + 5 for non-HP stat
|
||
jr nz, .notHPStat
|
||
ld a, [wCurEnemyLVL]
|
||
ld b, a
|
||
ld a, [hMultiplicand+2]
|
||
add b
|
||
ld [hMultiplicand+2], a
|
||
jr nc, .noCarry3
|
||
ld a, [hMultiplicand+1]
|
||
inc a
|
||
ld [hMultiplicand+1], a ; HP: (((Base + IV) * 2 + ceil(Sqrt(stat exp)) / 4) * Level) / 100 + Level
|
||
.noCarry3
|
||
ld a, 10 ; +10 for HP stat
|
||
.notHPStat
|
||
ld b, a
|
||
ld a, [hMultiplicand+2]
|
||
add b
|
||
ld [hMultiplicand+2], a
|
||
jr nc, .noCarry4
|
||
ld a, [hMultiplicand+1]
|
||
inc a ; non-HP: (((Base + IV) * 2 + ceil(Sqrt(stat exp)) / 4) * Level) / 100 + 5
|
||
ld [hMultiplicand+1], a ; HP: (((Base + IV) * 2 + ceil(Sqrt(stat exp)) / 4) * Level) / 100 + Level + 10
|
||
.noCarry4
|
||
ld a, [hMultiplicand+1] ; check for overflow (>999)
|
||
cp 999 / $100 + 1
|
||
jr nc, .overflow
|
||
cp 999 / $100
|
||
jr c, .noOverflow
|
||
ld a, [hMultiplicand+2]
|
||
cp 999 % $100 + 1
|
||
jr c, .noOverflow
|
||
.overflow
|
||
ld a, 999 / $100 ; overflow: cap at 999
|
||
ld [hMultiplicand+1], a
|
||
ld a, 999 % $100
|
||
ld [hMultiplicand+2], a
|
||
.noOverflow
|
||
pop bc
|
||
pop de
|
||
pop hl
|
||
ret
|
||
|
||
AddEnemyMonToPlayerParty::
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, BANK(_AddEnemyMonToPlayerParty)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call _AddEnemyMonToPlayerParty
|
||
pop bc
|
||
ld a, b
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
MoveMon::
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, BANK(_MoveMon)
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
call _MoveMon
|
||
pop bc
|
||
ld a, b
|
||
ld [hLoadedROMBank], a
|
||
ld [MBC1RomBank], a
|
||
ret
|
||
|
||
; skips a text entries, each of size NAME_LENGTH (like trainer name, OT name, rival name, ...)
|
||
; hl: base pointer, will be incremented by NAME_LENGTH * a
|
||
SkipFixedLengthTextEntries::
|
||
and a
|
||
ret z
|
||
ld bc, NAME_LENGTH
|
||
.skipLoop
|
||
add hl, bc
|
||
dec a
|
||
jr nz, .skipLoop
|
||
ret
|
||
|
||
AddNTimes::
|
||
; add bc to hl a times
|
||
and a
|
||
ret z
|
||
.loop
|
||
add hl, bc
|
||
dec a
|
||
jr nz, .loop
|
||
ret
|
||
|
||
; Compare strings, c bytes in length, at de and hl.
|
||
; Often used to compare big endian numbers in battle calculations.
|
||
StringCmp::
|
||
ld a, [de]
|
||
cp [hl]
|
||
ret nz
|
||
inc de
|
||
inc hl
|
||
dec c
|
||
jr nz, StringCmp
|
||
ret
|
||
|
||
; INPUT:
|
||
; a = oam block index (each block is 4 oam entries)
|
||
; b = Y coordinate of upper left corner of sprite
|
||
; c = X coordinate of upper left corner of sprite
|
||
; de = base address of 4 tile number and attribute pairs
|
||
WriteOAMBlock::
|
||
ld h, wOAMBuffer / $100
|
||
swap a ; multiply by 16
|
||
ld l, a
|
||
call .writeOneEntry ; upper left
|
||
push bc
|
||
ld a, 8
|
||
add c
|
||
ld c, a
|
||
call .writeOneEntry ; upper right
|
||
pop bc
|
||
ld a, 8
|
||
add b
|
||
ld b, a
|
||
call .writeOneEntry ; lower left
|
||
ld a, 8
|
||
add c
|
||
ld c, a
|
||
; lower right
|
||
.writeOneEntry
|
||
ld [hl], b ; Y coordinate
|
||
inc hl
|
||
ld [hl], c ; X coordinate
|
||
inc hl
|
||
ld a, [de] ; tile number
|
||
inc de
|
||
ld [hli], a
|
||
ld a, [de] ; attribute
|
||
inc de
|
||
ld [hli], a
|
||
ret
|
||
|
||
HandleMenuInput::
|
||
xor a
|
||
ld [wPartyMenuAnimMonEnabled], a
|
||
|
||
HandleMenuInput_::
|
||
ld a, [hDownArrowBlinkCount1]
|
||
push af
|
||
ld a, [hDownArrowBlinkCount2]
|
||
push af ; save existing values on stack
|
||
xor a
|
||
ld [hDownArrowBlinkCount1], a ; blinking down arrow timing value 1
|
||
ld a, 6
|
||
ld [hDownArrowBlinkCount2], a ; blinking down arrow timing value 2
|
||
.loop1
|
||
xor a
|
||
ld [wAnimCounter], a ; counter for pokemon shaking animation
|
||
call PlaceMenuCursor
|
||
call Delay3
|
||
.loop2
|
||
push hl
|
||
ld a, [wPartyMenuAnimMonEnabled]
|
||
and a ; is it a pokemon selection menu?
|
||
jr z, .getJoypadState
|
||
callba AnimatePartyMon ; shake mini sprite of selected pokemon
|
||
.getJoypadState
|
||
pop hl
|
||
call JoypadLowSensitivity
|
||
ld a, [hJoy5]
|
||
and a ; was a key pressed?
|
||
jr nz, .keyPressed
|
||
push hl
|
||
coord hl, 18, 11 ; coordinates of blinking down arrow in some menus
|
||
call HandleDownArrowBlinkTiming ; blink down arrow (if any)
|
||
pop hl
|
||
ld a, [wMenuJoypadPollCount]
|
||
dec a
|
||
jr z, .giveUpWaiting
|
||
jr .loop2
|
||
.giveUpWaiting
|
||
; if a key wasn't pressed within the specified number of checks
|
||
pop af
|
||
ld [hDownArrowBlinkCount2], a
|
||
pop af
|
||
ld [hDownArrowBlinkCount1], a ; restore previous values
|
||
xor a
|
||
ld [wMenuWrappingEnabled], a ; disable menu wrapping
|
||
ret
|
||
.keyPressed
|
||
xor a
|
||
ld [wCheckFor180DegreeTurn], a
|
||
ld a, [hJoy5]
|
||
ld b, a
|
||
bit 6, a ; pressed Up key?
|
||
jr z, .checkIfDownPressed
|
||
.upPressed
|
||
ld a, [wCurrentMenuItem] ; selected menu item
|
||
and a ; already at the top of the menu?
|
||
jr z, .alreadyAtTop
|
||
.notAtTop
|
||
dec a
|
||
ld [wCurrentMenuItem], a ; move selected menu item up one space
|
||
jr .checkOtherKeys
|
||
.alreadyAtTop
|
||
ld a, [wMenuWrappingEnabled]
|
||
and a ; is wrapping around enabled?
|
||
jr z, .noWrappingAround
|
||
ld a, [wMaxMenuItem]
|
||
ld [wCurrentMenuItem], a ; wrap to the bottom of the menu
|
||
jr .checkOtherKeys
|
||
.checkIfDownPressed
|
||
bit 7, a
|
||
jr z, .checkOtherKeys
|
||
.downPressed
|
||
ld a, [wCurrentMenuItem]
|
||
inc a
|
||
ld c, a
|
||
ld a, [wMaxMenuItem]
|
||
cp c
|
||
jr nc, .notAtBottom
|
||
.alreadyAtBottom
|
||
ld a, [wMenuWrappingEnabled]
|
||
and a ; is wrapping around enabled?
|
||
jr z, .noWrappingAround
|
||
ld c, $00 ; wrap from bottom to top
|
||
.notAtBottom
|
||
ld a, c
|
||
ld [wCurrentMenuItem], a
|
||
.checkOtherKeys
|
||
ld a, [wMenuWatchedKeys]
|
||
and b ; does the menu care about any of the pressed keys?
|
||
jp z, .loop1
|
||
.checkIfAButtonOrBButtonPressed
|
||
ld a, [hJoy5]
|
||
and A_BUTTON | B_BUTTON
|
||
jr z, .skipPlayingSound
|
||
.AButtonOrBButtonPressed
|
||
push hl
|
||
ld hl, wFlags_0xcd60
|
||
bit 5, [hl]
|
||
pop hl
|
||
jr nz, .skipPlayingSound
|
||
ld a, SFX_PRESS_AB
|
||
call PlaySound
|
||
.skipPlayingSound
|
||
pop af
|
||
ld [hDownArrowBlinkCount2], a
|
||
pop af
|
||
ld [hDownArrowBlinkCount1], a ; restore previous values
|
||
xor a
|
||
ld [wMenuWrappingEnabled], a ; disable menu wrapping
|
||
ld a, [hJoy5]
|
||
ret
|
||
.noWrappingAround
|
||
ld a, [wMenuWatchMovingOutOfBounds]
|
||
and a ; should we return if the user tried to go past the top or bottom?
|
||
jr z, .checkOtherKeys
|
||
jr .checkIfAButtonOrBButtonPressed
|
||
|
||
PlaceMenuCursor::
|
||
ld a, [wTopMenuItemY]
|
||
and a ; is the y coordinate 0?
|
||
jr z, .adjustForXCoord
|
||
coord hl, 0, 0
|
||
ld bc, SCREEN_WIDTH
|
||
.topMenuItemLoop
|
||
add hl, bc
|
||
dec a
|
||
jr nz, .topMenuItemLoop
|
||
.adjustForXCoord
|
||
ld a, [wTopMenuItemX]
|
||
ld b, 0
|
||
ld c, a
|
||
add hl, bc
|
||
push hl
|
||
ld a, [wLastMenuItem]
|
||
and a ; was the previous menu id 0?
|
||
jr z, .checkForArrow1
|
||
push af
|
||
ld a, [hFlagsFFF6]
|
||
bit 1, a ; is the menu double spaced?
|
||
jr z, .doubleSpaced1
|
||
ld bc, 20
|
||
jr .getOldMenuItemScreenPosition
|
||
.doubleSpaced1
|
||
ld bc, 40
|
||
.getOldMenuItemScreenPosition
|
||
pop af
|
||
.oldMenuItemLoop
|
||
add hl, bc
|
||
dec a
|
||
jr nz, .oldMenuItemLoop
|
||
.checkForArrow1
|
||
ld a, [hl]
|
||
cp "▶" ; was an arrow next to the previously selected menu item?
|
||
jr nz, .skipClearingArrow
|
||
.clearArrow
|
||
ld a, [wTileBehindCursor]
|
||
ld [hl], a
|
||
.skipClearingArrow
|
||
pop hl
|
||
ld a, [wCurrentMenuItem]
|
||
and a
|
||
jr z, .checkForArrow2
|
||
push af
|
||
ld a, [hFlagsFFF6]
|
||
bit 1, a ; is the menu double spaced?
|
||
jr z, .doubleSpaced2
|
||
ld bc, 20
|
||
jr .getCurrentMenuItemScreenPosition
|
||
.doubleSpaced2
|
||
ld bc, 40
|
||
.getCurrentMenuItemScreenPosition
|
||
pop af
|
||
.currentMenuItemLoop
|
||
add hl, bc
|
||
dec a
|
||
jr nz, .currentMenuItemLoop
|
||
.checkForArrow2
|
||
ld a, [hl]
|
||
cp "▶" ; has the right arrow already been placed?
|
||
jr z, .skipSavingTile ; if so, don't lose the saved tile
|
||
ld [wTileBehindCursor], a ; save tile before overwriting with right arrow
|
||
.skipSavingTile
|
||
ld a, "▶" ; place right arrow
|
||
ld [hl], a
|
||
ld a, l
|
||
ld [wMenuCursorLocation], a
|
||
ld a, h
|
||
ld [wMenuCursorLocation + 1], a
|
||
ld a, [wCurrentMenuItem]
|
||
ld [wLastMenuItem], a
|
||
ret
|
||
|
||
; This is used to mark a menu cursor other than the one currently being
|
||
; manipulated. In the case of submenus, this is used to show the location of
|
||
; the menu cursor in the parent menu. In the case of swapping items in list,
|
||
; this is used to mark the item that was first chosen to be swapped.
|
||
PlaceUnfilledArrowMenuCursor::
|
||
ld b, a
|
||
ld a, [wMenuCursorLocation]
|
||
ld l, a
|
||
ld a, [wMenuCursorLocation + 1]
|
||
ld h, a
|
||
ld [hl], $ec ; outline of right arrow
|
||
ld a, b
|
||
ret
|
||
|
||
; Replaces the menu cursor with a blank space.
|
||
EraseMenuCursor::
|
||
ld a, [wMenuCursorLocation]
|
||
ld l, a
|
||
ld a, [wMenuCursorLocation + 1]
|
||
ld h, a
|
||
ld [hl], " "
|
||
ret
|
||
|
||
; This toggles a blinking down arrow at hl on and off after a delay has passed.
|
||
; This is often called even when no blinking is occurring.
|
||
; The reason is that most functions that call this initialize hDownArrowBlinkCount1 to 0.
|
||
; The effect is that if the tile at hl is initialized with a down arrow,
|
||
; this function will toggle that down arrow on and off, but if the tile isn't
|
||
; initialized with a down arrow, this function does nothing.
|
||
; That allows this to be called without worrying about if a down arrow should
|
||
; be blinking.
|
||
HandleDownArrowBlinkTiming::
|
||
ld a, [hl]
|
||
ld b, a
|
||
ld a, "▼"
|
||
cp b
|
||
jr nz, .downArrowOff
|
||
.downArrowOn
|
||
ld a, [hDownArrowBlinkCount1]
|
||
dec a
|
||
ld [hDownArrowBlinkCount1], a
|
||
ret nz
|
||
ld a, [hDownArrowBlinkCount2]
|
||
dec a
|
||
ld [hDownArrowBlinkCount2], a
|
||
ret nz
|
||
ld a, " "
|
||
ld [hl], a
|
||
ld a, $ff
|
||
ld [hDownArrowBlinkCount1], a
|
||
ld a, $06
|
||
ld [hDownArrowBlinkCount2], a
|
||
ret
|
||
.downArrowOff
|
||
ld a, [hDownArrowBlinkCount1]
|
||
and a
|
||
ret z
|
||
dec a
|
||
ld [hDownArrowBlinkCount1], a
|
||
ret nz
|
||
dec a
|
||
ld [hDownArrowBlinkCount1], a
|
||
ld a, [hDownArrowBlinkCount2]
|
||
dec a
|
||
ld [hDownArrowBlinkCount2], a
|
||
ret nz
|
||
ld a, $06
|
||
ld [hDownArrowBlinkCount2], a
|
||
ld a, "▼"
|
||
ld [hl], a
|
||
ret
|
||
|
||
; The following code either enables or disables the automatic drawing of
|
||
; text boxes by DisplayTextID. Both functions cause DisplayTextID to wait
|
||
; for a button press after displaying text (unless [wEnteringCableClub] is set).
|
||
|
||
EnableAutoTextBoxDrawing::
|
||
xor a
|
||
jr AutoTextBoxDrawingCommon
|
||
|
||
DisableAutoTextBoxDrawing::
|
||
ld a, $01
|
||
|
||
AutoTextBoxDrawingCommon::
|
||
ld [wAutoTextBoxDrawingControl], a
|
||
xor a
|
||
ld [wDoNotWaitForButtonPressAfterDisplayingText], a ; make DisplayTextID wait for button press
|
||
ret
|
||
|
||
PrintText::
|
||
; Print text hl at (1, 14).
|
||
push hl
|
||
ld a, MESSAGE_BOX
|
||
ld [wTextBoxID], a
|
||
call DisplayTextBoxID
|
||
call UpdateSprites
|
||
call Delay3
|
||
pop hl
|
||
PrintText_NoCreatingTextBox::
|
||
coord bc, 1, 14
|
||
jp TextCommandProcessor
|
||
|
||
|
||
PrintNumber::
|
||
; Print the c-digit, b-byte value at de.
|
||
; Allows 2 to 7 digits. For 1-digit numbers, add
|
||
; the value to char "0" instead of calling PrintNumber.
|
||
; Flags LEADING_ZEROES and LEFT_ALIGN can be given
|
||
; in bits 7 and 6 of b respectively.
|
||
push bc
|
||
xor a
|
||
ld [hPastLeadingZeros], a
|
||
ld [hNumToPrint], a
|
||
ld [hNumToPrint + 1], a
|
||
ld a, b
|
||
and $f
|
||
cp 1
|
||
jr z, .byte
|
||
cp 2
|
||
jr z, .word
|
||
.long
|
||
ld a, [de]
|
||
ld [hNumToPrint], a
|
||
inc de
|
||
ld a, [de]
|
||
ld [hNumToPrint + 1], a
|
||
inc de
|
||
ld a, [de]
|
||
ld [hNumToPrint + 2], a
|
||
jr .start
|
||
|
||
.word
|
||
ld a, [de]
|
||
ld [hNumToPrint + 1], a
|
||
inc de
|
||
ld a, [de]
|
||
ld [hNumToPrint + 2], a
|
||
jr .start
|
||
|
||
.byte
|
||
ld a, [de]
|
||
ld [hNumToPrint + 2], a
|
||
|
||
.start
|
||
push de
|
||
|
||
ld d, b
|
||
ld a, c
|
||
ld b, a
|
||
xor a
|
||
ld c, a
|
||
ld a, b
|
||
|
||
cp 2
|
||
jr z, .tens
|
||
cp 3
|
||
jr z, .hundreds
|
||
cp 4
|
||
jr z, .thousands
|
||
cp 5
|
||
jr z, .ten_thousands
|
||
cp 6
|
||
jr z, .hundred_thousands
|
||
|
||
print_digit: macro
|
||
|
||
if (\1) / $10000
|
||
ld a, \1 / $10000 % $100
|
||
else xor a
|
||
endc
|
||
ld [hPowerOf10 + 0], a
|
||
|
||
if (\1) / $100
|
||
ld a, \1 / $100 % $100
|
||
else xor a
|
||
endc
|
||
ld [hPowerOf10 + 1], a
|
||
|
||
ld a, \1 / $1 % $100
|
||
ld [hPowerOf10 + 2], a
|
||
|
||
call .PrintDigit
|
||
call .NextDigit
|
||
endm
|
||
|
||
.millions print_digit 1000000
|
||
.hundred_thousands print_digit 100000
|
||
.ten_thousands print_digit 10000
|
||
.thousands print_digit 1000
|
||
.hundreds print_digit 100
|
||
|
||
.tens
|
||
ld c, 0
|
||
ld a, [hNumToPrint + 2]
|
||
.mod
|
||
cp 10
|
||
jr c, .ok
|
||
sub 10
|
||
inc c
|
||
jr .mod
|
||
.ok
|
||
|
||
ld b, a
|
||
ld a, [hPastLeadingZeros]
|
||
or c
|
||
ld [hPastLeadingZeros], a
|
||
jr nz, .past
|
||
call .PrintLeadingZero
|
||
jr .next
|
||
.past
|
||
ld a, "0"
|
||
add c
|
||
ld [hl], a
|
||
.next
|
||
|
||
call .NextDigit
|
||
.ones
|
||
ld a, "0"
|
||
add b
|
||
ld [hli], a
|
||
pop de
|
||
dec de
|
||
pop bc
|
||
ret
|
||
|
||
.PrintDigit:
|
||
; Divide by the current decimal place.
|
||
; Print the quotient, and keep the modulus.
|
||
ld c, 0
|
||
.loop
|
||
ld a, [hPowerOf10]
|
||
ld b, a
|
||
ld a, [hNumToPrint]
|
||
ld [hSavedNumToPrint], a
|
||
cp b
|
||
jr c, .underflow0
|
||
sub b
|
||
ld [hNumToPrint], a
|
||
ld a, [hPowerOf10 + 1]
|
||
ld b, a
|
||
ld a, [hNumToPrint + 1]
|
||
ld [hSavedNumToPrint + 1], a
|
||
cp b
|
||
jr nc, .noborrow1
|
||
|
||
ld a, [hNumToPrint]
|
||
or 0
|
||
jr z, .underflow1
|
||
dec a
|
||
ld [hNumToPrint], a
|
||
ld a, [hNumToPrint + 1]
|
||
.noborrow1
|
||
|
||
sub b
|
||
ld [hNumToPrint + 1], a
|
||
ld a, [hPowerOf10 + 2]
|
||
ld b, a
|
||
ld a, [hNumToPrint + 2]
|
||
ld [hSavedNumToPrint + 2], a
|
||
cp b
|
||
jr nc, .noborrow2
|
||
|
||
ld a, [hNumToPrint + 1]
|
||
and a
|
||
jr nz, .borrowed
|
||
|
||
ld a, [hNumToPrint]
|
||
and a
|
||
jr z, .underflow2
|
||
dec a
|
||
ld [hNumToPrint], a
|
||
xor a
|
||
.borrowed
|
||
|
||
dec a
|
||
ld [hNumToPrint + 1], a
|
||
ld a, [hNumToPrint + 2]
|
||
.noborrow2
|
||
sub b
|
||
ld [hNumToPrint + 2], a
|
||
inc c
|
||
jr .loop
|
||
|
||
.underflow2
|
||
ld a, [hSavedNumToPrint + 1]
|
||
ld [hNumToPrint + 1], a
|
||
.underflow1
|
||
ld a, [hSavedNumToPrint]
|
||
ld [hNumToPrint], a
|
||
.underflow0
|
||
ld a, [hPastLeadingZeros]
|
||
or c
|
||
jr z, .PrintLeadingZero
|
||
|
||
ld a, "0"
|
||
add c
|
||
ld [hl], a
|
||
ld [hPastLeadingZeros], a
|
||
ret
|
||
|
||
.PrintLeadingZero:
|
||
bit BIT_LEADING_ZEROES, d
|
||
ret z
|
||
ld [hl], "0"
|
||
ret
|
||
|
||
.NextDigit:
|
||
; Increment unless the number is left-aligned,
|
||
; leading zeroes are not printed, and no digits
|
||
; have been printed yet.
|
||
bit BIT_LEADING_ZEROES, d
|
||
jr nz, .inc
|
||
bit BIT_LEFT_ALIGN, d
|
||
jr z, .inc
|
||
ld a, [hPastLeadingZeros]
|
||
and a
|
||
ret z
|
||
.inc
|
||
inc hl
|
||
ret
|
||
|
||
|
||
CallFunctionInTable::
|
||
; Call function a in jumptable hl.
|
||
; de is not preserved.
|
||
push hl
|
||
push de
|
||
push bc
|
||
add a
|
||
ld d, 0
|
||
ld e, a
|
||
add hl, de
|
||
ld a, [hli]
|
||
ld h, [hl]
|
||
ld l, a
|
||
ld de, .returnAddress
|
||
push de
|
||
jp hl
|
||
.returnAddress
|
||
pop bc
|
||
pop de
|
||
pop hl
|
||
ret
|
||
|
||
|
||
IsInArray::
|
||
; Search an array at hl for the value in a.
|
||
; Entry size is de bytes.
|
||
; Return count b and carry if found.
|
||
ld b, 0
|
||
|
||
IsInRestOfArray::
|
||
ld c, a
|
||
.loop
|
||
ld a, [hl]
|
||
cp -1
|
||
jr z, .notfound
|
||
cp c
|
||
jr z, .found
|
||
inc b
|
||
add hl, de
|
||
jr .loop
|
||
|
||
.notfound
|
||
and a
|
||
ret
|
||
|
||
.found
|
||
scf
|
||
ret
|
||
|
||
|
||
RestoreScreenTilesAndReloadTilePatterns::
|
||
call ClearSprites
|
||
ld a, $1
|
||
ld [wUpdateSpritesEnabled], a
|
||
call ReloadMapSpriteTilePatterns
|
||
call LoadScreenTilesFromBuffer2
|
||
call LoadTextBoxTilePatterns
|
||
call RunDefaultPaletteCommand
|
||
jr Delay3
|
||
|
||
|
||
GBPalWhiteOutWithDelay3::
|
||
call GBPalWhiteOut
|
||
|
||
Delay3::
|
||
; The bg map is updated each frame in thirds.
|
||
; Wait three frames to let the bg map fully update.
|
||
ld c, 3
|
||
jp DelayFrames
|
||
|
||
GBPalNormal::
|
||
; Reset BGP and OBP0.
|
||
ld a, %11100100 ; 3210
|
||
ld [rBGP], a
|
||
ld a, %11010000 ; 3100
|
||
ld [rOBP0], a
|
||
ret
|
||
|
||
GBPalWhiteOut::
|
||
; White out all palettes.
|
||
xor a
|
||
ld [rBGP], a
|
||
ld [rOBP0], a
|
||
ld [rOBP1], a
|
||
ret
|
||
|
||
|
||
RunDefaultPaletteCommand::
|
||
ld b, $ff
|
||
RunPaletteCommand::
|
||
ld a, [wOnSGB]
|
||
and a
|
||
ret z
|
||
predef_jump _RunPaletteCommand
|
||
|
||
GetHealthBarColor::
|
||
; Return at hl the palette of
|
||
; an HP bar e pixels long.
|
||
ld a, e
|
||
cp 27
|
||
ld d, 0 ; green
|
||
jr nc, .gotColor
|
||
cp 10
|
||
inc d ; yellow
|
||
jr nc, .gotColor
|
||
inc d ; red
|
||
.gotColor
|
||
ld [hl], d
|
||
ret
|
||
|
||
; Copy the current map's sprites' tile patterns to VRAM again after they have
|
||
; been overwritten by other tile patterns.
|
||
ReloadMapSpriteTilePatterns::
|
||
ld hl, wFontLoaded
|
||
ld a, [hl]
|
||
push af
|
||
res 0, [hl]
|
||
push hl
|
||
xor a
|
||
ld [wSpriteSetID], a
|
||
call DisableLCD
|
||
callba InitMapSprites
|
||
call EnableLCD
|
||
pop hl
|
||
pop af
|
||
ld [hl], a
|
||
call LoadPlayerSpriteGraphics
|
||
call LoadFontTilePatterns
|
||
jp UpdateSprites
|
||
|
||
|
||
GiveItem::
|
||
; Give player quantity c of item b,
|
||
; and copy the item's name to wcf4b.
|
||
; Return carry on success.
|
||
ld a, b
|
||
ld [wd11e], a
|
||
ld [wcf91], a
|
||
ld a, c
|
||
ld [wItemQuantity], a
|
||
ld hl, wNumBagItems
|
||
call AddItemToInventory
|
||
ret nc
|
||
call GetItemName
|
||
call CopyStringToCF4B
|
||
scf
|
||
ret
|
||
|
||
GivePokemon::
|
||
; Give the player monster b at level c.
|
||
ld a, b
|
||
ld [wcf91], a
|
||
ld a, c
|
||
ld [wCurEnemyLVL], a
|
||
xor a ; PLAYER_PARTY_DATA
|
||
ld [wMonDataLocation], a
|
||
jpba _GivePokemon
|
||
|
||
|
||
Random::
|
||
; Return a random number in a.
|
||
; For battles, use BattleRandom.
|
||
push hl
|
||
push de
|
||
push bc
|
||
callba Random_
|
||
ld a, [hRandomAdd]
|
||
pop bc
|
||
pop de
|
||
pop hl
|
||
ret
|
||
|
||
|
||
INCLUDE "home/predef.asm"
|
||
|
||
|
||
UpdateCinnabarGymGateTileBlocks::
|
||
jpba UpdateCinnabarGymGateTileBlocks_
|
||
|
||
CheckForHiddenObjectOrBookshelfOrCardKeyDoor::
|
||
ld a, [hLoadedROMBank]
|
||
push af
|
||
ld a, [hJoyHeld]
|
||
bit 0, a ; A button
|
||
jr z, .nothingFound
|
||
; A button is pressed
|
||
ld a, Bank(CheckForHiddenObject)
|
||
ld [MBC1RomBank], a
|
||
ld [hLoadedROMBank], a
|
||
call CheckForHiddenObject
|
||
ld a, [$ffee]
|
||
and a
|
||
jr nz, .hiddenObjectNotFound
|
||
ld a, [wHiddenObjectFunctionRomBank]
|
||
ld [MBC1RomBank], a
|
||
ld [hLoadedROMBank], a
|
||
ld de, .returnAddress
|
||
push de
|
||
jp hl
|
||
.returnAddress
|
||
xor a
|
||
jr .done
|
||
.hiddenObjectNotFound
|
||
callba PrintBookshelfText
|
||
ld a, [$ffdb]
|
||
and a
|
||
jr z, .done
|
||
.nothingFound
|
||
ld a, $ff
|
||
.done
|
||
ld [$ffeb], a
|
||
pop af
|
||
ld [MBC1RomBank], a
|
||
ld [hLoadedROMBank], a
|
||
ret
|
||
|
||
PrintPredefTextID::
|
||
ld [hSpriteIndexOrTextID], a
|
||
ld hl, TextPredefs
|
||
call SetMapTextPointer
|
||
ld hl, wTextPredefFlag
|
||
set 0, [hl]
|
||
call DisplayTextID
|
||
|
||
RestoreMapTextPointer::
|
||
ld hl, wMapTextPtr
|
||
ld a, [$ffec]
|
||
ld [hli], a
|
||
ld a, [$ffec + 1]
|
||
ld [hl], a
|
||
ret
|
||
|
||
SetMapTextPointer::
|
||
ld a, [wMapTextPtr]
|
||
ld [$ffec], a
|
||
ld a, [wMapTextPtr + 1]
|
||
ld [$ffec + 1], a
|
||
ld a, l
|
||
ld [wMapTextPtr], a
|
||
ld a, h
|
||
ld [wMapTextPtr + 1], a
|
||
ret
|
||
|
||
TextPredefs::
|
||
const_value = 1
|
||
|
||
add_tx_pre CardKeySuccessText ; 01
|
||
add_tx_pre CardKeyFailText ; 02
|
||
add_tx_pre RedBedroomPCText ; 03
|
||
add_tx_pre RedBedroomSNESText ; 04
|
||
add_tx_pre PushStartText ; 05
|
||
add_tx_pre SaveOptionText ; 06
|
||
add_tx_pre StrengthsAndWeaknessesText ; 07
|
||
add_tx_pre OakLabEmailText ; 08
|
||
add_tx_pre AerodactylFossilText ; 09
|
||
add_tx_pre Route15UpstairsBinocularsText ; 0A
|
||
add_tx_pre KabutopsFossilText ; 0B
|
||
add_tx_pre GymStatueText1 ; 0C
|
||
add_tx_pre GymStatueText2 ; 0D
|
||
add_tx_pre BookcaseText ; 0E
|
||
add_tx_pre ViridianCityPokecenterBenchGuyText ; 0F
|
||
add_tx_pre PewterCityPokecenterBenchGuyText ; 10
|
||
add_tx_pre CeruleanCityPokecenterBenchGuyText ; 11
|
||
add_tx_pre LavenderCityPokecenterBenchGuyText ; 12
|
||
add_tx_pre VermilionCityPokecenterBenchGuyText ; 13
|
||
add_tx_pre CeladonCityPokecenterBenchGuyText ; 14
|
||
add_tx_pre CeladonCityHotelText ; 15
|
||
add_tx_pre FuchsiaCityPokecenterBenchGuyText ; 16
|
||
add_tx_pre CinnabarIslandPokecenterBenchGuyText ; 17
|
||
add_tx_pre SaffronCityPokecenterBenchGuyText ; 18
|
||
add_tx_pre MtMoonPokecenterBenchGuyText ; 19
|
||
add_tx_pre RockTunnelPokecenterBenchGuyText ; 1A
|
||
add_tx_pre UnusedBenchGuyText1 ; 1B XXX unused
|
||
add_tx_pre UnusedBenchGuyText2 ; 1C XXX unused
|
||
add_tx_pre UnusedBenchGuyText3 ; 1D XXX unused
|
||
add_tx_pre UnusedPredefText ; 1E XXX unused
|
||
add_tx_pre PokemonCenterPCText ; 1F
|
||
add_tx_pre ViridianSchoolNotebook ; 20
|
||
add_tx_pre ViridianSchoolBlackboard ; 21
|
||
add_tx_pre JustAMomentText ; 22
|
||
add_tx_pre OpenBillsPCText ; 23
|
||
add_tx_pre FoundHiddenItemText ; 24
|
||
add_tx_pre HiddenItemBagFullText ; 25 XXX unused
|
||
add_tx_pre VermilionGymTrashText ; 26
|
||
add_tx_pre IndigoPlateauHQText ; 27
|
||
add_tx_pre GameCornerOutOfOrderText ; 28
|
||
add_tx_pre GameCornerOutToLunchText ; 29
|
||
add_tx_pre GameCornerSomeonesKeysText ; 2A
|
||
add_tx_pre FoundHiddenCoinsText ; 2B
|
||
add_tx_pre DroppedHiddenCoinsText ; 2C
|
||
add_tx_pre BillsHouseMonitorText ; 2D
|
||
add_tx_pre BillsHouseInitiatedText ; 2E
|
||
add_tx_pre BillsHousePokemonList ; 2F
|
||
add_tx_pre MagazinesText ; 30
|
||
add_tx_pre CinnabarGymQuiz ; 31
|
||
add_tx_pre GameCornerNoCoinsText ; 32
|
||
add_tx_pre GameCornerCoinCaseText ; 33
|
||
add_tx_pre LinkCableHelp ; 34
|
||
add_tx_pre TMNotebook ; 35
|
||
add_tx_pre FightingDojoText ; 36
|
||
add_tx_pre EnemiesOnEverySideText ; 37
|
||
add_tx_pre WhatGoesAroundComesAroundText ; 38
|
||
add_tx_pre NewBicycleText ; 39
|
||
add_tx_pre IndigoPlateauStatues ; 3A
|
||
add_tx_pre VermilionGymTrashSuccessText1 ; 3B
|
||
add_tx_pre VermilionGymTrashSuccessText2 ; 3C XXX unused
|
||
add_tx_pre VermilionGymTrashSuccessText3 ; 3D
|
||
add_tx_pre VermilionGymTrashFailText ; 3E
|
||
add_tx_pre TownMapText ; 3F
|
||
add_tx_pre BookOrSculptureText ; 40
|
||
add_tx_pre ElevatorText ; 41
|
||
add_tx_pre PokemonStuffText ; 42
|