pokecrystal/engine/battle_start.asm

866 lines
14 KiB
NASM

Predef_StartBattle: ; 8c20f
call .InitGFX
ld a, [rBGP]
ld [wBGP], a
ld a, [rOBP0]
ld [wOBP0], a
ld a, [rOBP1]
ld [wOBP1], a
call DelayFrame
ld hl, hVBlank
ld a, [hl]
push af
ld [hl], $1
.loop
ld a, [wJumptableIndex]
bit 7, a
jr nz, .done
call FlashyTransitionToBattle
call DelayFrame
jr .loop
.done
ld a, [rSVBK]
push af
ld a, $5
ld [rSVBK], a
ld hl, UnknBGPals
ld bc, 8 palettes
xor a
call ByteFill
pop af
ld [rSVBK], a
ld a, %11111111
ld [wBGP], a
call DmgToCgbBGPals
call DelayFrame
xor a
ld [hLCDCPointer], a
ld [hLYOverrideStart], a
ld [hLYOverrideEnd], a
ld [hSCY], a
ld a, $1
ld [rSVBK], a
pop af
ld [hVBlank], a
call DelayFrame
ret
; 8c26d
.InitGFX: ; 8c26d
ld a, [wLinkMode]
cp LINK_MOBILE
jr z, .mobile
callba ReanchorBGMap_NoOAMUpdate
call UpdateSprites
call DelayFrame
call .NonMobile_LoadPokeballTiles
call BattleStart_LoadEDTile
jr .resume
.mobile
call LoadTrainerBattlePokeballTiles
.resume
ld a, SCREEN_HEIGHT_PX
ld [hWY], a
call DelayFrame
xor a
ld [hBGMapMode], a
ld hl, wJumptableIndex
xor a
ld [hli], a
ld [hli], a
ld [hl], a
call WipeLYOverrides
ret
; 8c2a0
.NonMobile_LoadPokeballTiles: ; 8c2a0
call LoadTrainerBattlePokeballTiles
hlbgcoord 0, 0
call ConvertTrainerBattlePokeballTilesTo2bpp
ret
; 8c2aa
LoadTrainerBattlePokeballTiles:
; Load the tiles used in the Pokeball Graphic that fills the screen
; at the start of every Trainer battle.
ld de, TrainerBattlePokeballTiles
ld hl, VTiles1 tile $7e
ld b, BANK(TrainerBattlePokeballTiles)
ld c, 2
call Request2bpp
ld a, [rVBK]
push af
ld a, $1
ld [rVBK], a
ld de, TrainerBattlePokeballTiles
ld hl, VTiles4 tile $7e
ld b, BANK(TrainerBattlePokeballTiles)
ld c, 2
call Request2bpp
pop af
ld [rVBK], a
ret
; 8c2cf
ConvertTrainerBattlePokeballTilesTo2bpp: ; 8c2cf
ld a, [rSVBK]
push af
ld a, $6
ld [rSVBK], a
push hl
ld hl, wDecompressScratch
ld bc, $28 tiles
.loop
ld [hl], -1
inc hl
dec bc
ld a, c
or b
jr nz, .loop
pop hl
ld de, wDecompressScratch
ld b, BANK(ConvertTrainerBattlePokeballTilesTo2bpp) ; BANK(@)
ld c, $28
call Request2bpp
pop af
ld [rSVBK], a
ret
; 8c2f4
TrainerBattlePokeballTiles: ; 8c2f4
INCBIN "gfx/overworld/trainer_battle_pokeball_tiles.2bpp"
FlashyTransitionToBattle: ; 8c314
jumptable .dw, wJumptableIndex
; 8c323
.dw ; 8c323 (23:4323)
dw StartTrainerBattle_DetermineWhichAnimation ; 00
; Animation 1: cave
dw StartTrainerBattle_LoadPokeBallGraphics ; 01
dw StartTrainerBattle_SetUpBGMap ; 02
dw StartTrainerBattle_Flash ; 03
dw StartTrainerBattle_Flash ; 04
dw StartTrainerBattle_Flash ; 05
dw StartTrainerBattle_NextScene ; 06
dw StartTrainerBattle_SetUpForWavyOutro ; 07
dw StartTrainerBattle_SineWave ; 08
; Animation 2: cave, stronger
dw StartTrainerBattle_LoadPokeBallGraphics ; 09
dw StartTrainerBattle_SetUpBGMap ; 0a
dw StartTrainerBattle_Flash ; 0b
dw StartTrainerBattle_Flash ; 0c
dw StartTrainerBattle_Flash ; 0d
dw StartTrainerBattle_NextScene ; 0e
; There is no setup for this one
dw StartTrainerBattle_ZoomToBlack ; 0f
; Animation 3: no cave
dw StartTrainerBattle_LoadPokeBallGraphics ; 10
dw StartTrainerBattle_SetUpBGMap ; 11
dw StartTrainerBattle_Flash ; 12
dw StartTrainerBattle_Flash ; 13
dw StartTrainerBattle_Flash ; 14
dw StartTrainerBattle_NextScene ; 15
dw StartTrainerBattle_SetUpForSpinOutro ; 16
dw StartTrainerBattle_SpinToBlack ; 17
; Animation 4: no cave, stronger
dw StartTrainerBattle_LoadPokeBallGraphics ; 18
dw StartTrainerBattle_SetUpBGMap ; 19
dw StartTrainerBattle_Flash ; 1a
dw StartTrainerBattle_Flash ; 1b
dw StartTrainerBattle_Flash ; 1c
dw StartTrainerBattle_NextScene ; 1d
dw StartTrainerBattle_SetUpForRandomScatterOutro ; 1e
dw StartTrainerBattle_SpeckleToBlack ; 1f
; All animations jump to here.
dw StartTrainerBattle_Finish ; 20
StartTrainerBattle_DetermineWhichAnimation: ; 8c365 (23:4365)
; The screen flashes a different number of
; times depending on the level of your lead
; Pokemon relative to the opponent's.
ld de, 0
ld a, [BattleMonLevel]
add 3
ld hl, EnemyMonLevel
cp [hl]
jr nc, .okay
set 0, e
.okay
ld a, [wPermission]
cp CAVE
jr z, .okay2
cp PERM_5
jr z, .okay2
cp DUNGEON
jr z, .okay2
set 1, e
.okay2
ld hl, .StartingPoints
add hl, de
ld a, [hl]
ld [wJumptableIndex], a
ret
; 8c38f (23:438f)
.StartingPoints: ; 8c38f
db 1, 9
db 16, 24
; 8c393
StartTrainerBattle_Finish: ; 8c393 (23:4393)
call ClearSprites
ld a, $80
ld [wJumptableIndex], a
ret
StartTrainerBattle_NextScene: ; 8c39c (23:439c)
ld hl, wJumptableIndex
inc [hl]
ret
StartTrainerBattle_SetUpBGMap: ; 8c3a1 (23:43a1)
call StartTrainerBattle_NextScene
xor a
ld [wcf64], a
ld [hBGMapMode], a
ret
StartTrainerBattle_Flash: ; 8c3ab (23:43ab)
call .DoFlashAnimation
ret nc
call StartTrainerBattle_NextScene
ret
.DoFlashAnimation: ; 8c3b3 (23:43b3)
ld a, [wTimeOfDayPalset]
cp %11111111 ; dark cave
jr z, .done
ld hl, wcf64
ld a, [hl]
inc [hl]
srl a
ld e, a
ld d, 0
ld hl, .pals
add hl, de
ld a, [hl]
cp %00000001
jr z, .done
ld [wBGP], a
call DmgToCgbBGPals
and a
ret
.done
xor a
ld [wcf64], a
scf
ret
; 8c3db (23:43db)
.pals ; 8c3db
db %11111001 ; 3321
db %11111110 ; 3332
db %11111111 ; 3333
db %11111110 ; 3332
db %11111001 ; 3321
db %11100100 ; 3210
db %10010000 ; 2100
db %01000000 ; 1000
db %00000000 ; 0000
db %01000000 ; 1000
db %10010000 ; 2100
db %11100100 ; 3210
db %00000001 ; 0001
; 8c3e8
StartTrainerBattle_SetUpForWavyOutro: ; 8c3e8 (23:43e8)
callba Function5602
ld a, $5 ; BANK(LYOverrides)
ld [rSVBK], a
call StartTrainerBattle_NextScene
ld a, rSCX - $ff00
ld [hLCDCPointer], a
xor a
ld [hLYOverrideStart], a
ld a, $90
ld [hLYOverrideEnd], a
xor a
ld [wcf64], a
ld [wcf65], a
ret
StartTrainerBattle_SineWave: ; 8c408 (23:4408)
ld a, [wcf64]
cp $60
jr nc, .end
call .DoSineWave
ret
.end
ld a, $20
ld [wJumptableIndex], a
ret
.DoSineWave: ; 8c419 (23:4419)
ld hl, wcf65
ld a, [hl]
inc [hl]
ld hl, wcf64
ld d, [hl]
add [hl]
ld [hl], a
ld a, LYOverridesEnd - LYOverrides
ld bc, LYOverrides
ld e, $0
.loop
push af
push de
ld a, e
call StartTrainerBattle_DrawSineWave
ld [bc], a
inc bc
pop de
ld a, e
add $2
ld e, a
pop af
dec a
jr nz, .loop
ret
StartTrainerBattle_SetUpForSpinOutro: ; 8c43d (23:443d)
callba Function5602
ld a, $5 ; BANK(LYOverrides)
ld [rSVBK], a
call StartTrainerBattle_NextScene
xor a
ld [wcf64], a
ret
spintable_entry: MACRO
db \1
dw .wedge\2
dwcoord \3, \4
ENDM
; quadrants
const_def
const UPPER_LEFT
const UPPER_RIGHT
const LOWER_LEFT
const LOWER_RIGHT
StartTrainerBattle_SpinToBlack: ; 8c44f (23:444f)
xor a
ld [hBGMapMode], a
ld a, [wcf64]
ld e, a
ld d, 0
ld hl, .spintable
rept 5
add hl, de
endr
ld a, [hli]
cp -1
jr z, .end
ld [wcf65], a
call .load
ld a, $1
ld [hBGMapMode], a
call DelayFrame
call DelayFrame
ld hl, wcf64
inc [hl]
ret
.end
ld a, $1
ld [hBGMapMode], a
call DelayFrame
call DelayFrame
call DelayFrame
xor a
ld [hBGMapMode], a
ld a, $20
ld [wJumptableIndex], a
ret
; 8c490 (23:4490)
.spintable ; 8c490
spintable_entry UPPER_LEFT, 1, 1, 6
spintable_entry UPPER_LEFT, 2, 0, 3
spintable_entry UPPER_LEFT, 3, 1, 0
spintable_entry UPPER_LEFT, 4, 5, 0
spintable_entry UPPER_LEFT, 5, 9, 0
spintable_entry UPPER_RIGHT, 5, 10, 0
spintable_entry UPPER_RIGHT, 4, 14, 0
spintable_entry UPPER_RIGHT, 3, 18, 0
spintable_entry UPPER_RIGHT, 2, 19, 3
spintable_entry UPPER_RIGHT, 1, 18, 6
spintable_entry LOWER_RIGHT, 1, 18, 11
spintable_entry LOWER_RIGHT, 2, 19, 14
spintable_entry LOWER_RIGHT, 3, 18, 17
spintable_entry LOWER_RIGHT, 4, 14, 17
spintable_entry LOWER_RIGHT, 5, 10, 17
spintable_entry LOWER_LEFT, 5, 9, 17
spintable_entry LOWER_LEFT, 4, 5, 17
spintable_entry LOWER_LEFT, 3, 1, 17
spintable_entry LOWER_LEFT, 2, 0, 14
spintable_entry LOWER_LEFT, 1, 1, 11
db -1
; 8c4f5
.load ; 8c4f5 (23:44f5)
ld a, [hli]
ld e, a
ld a, [hli]
ld d, a
ld a, [hli]
ld h, [hl]
ld l, a
.loop
push hl
ld a, [de]
ld c, a
inc de
.loop1
ld [hl], $ff
ld a, [wcf65]
bit 0, a
jr z, .leftside
inc hl
jr .okay1
.leftside
dec hl
.okay1
dec c
jr nz, .loop1
pop hl
ld a, [wcf65]
bit 1, a
ld bc, SCREEN_WIDTH
jr z, .upper
ld bc, -SCREEN_WIDTH
.upper
add hl, bc
ld a, [de]
inc de
cp -1
ret z
and a
jr z, .loop
ld c, a
.loop2
ld a, [wcf65]
bit 0, a
jr z, .leftside2
dec hl
jr .okay2
.leftside2
inc hl
.okay2
dec c
jr nz, .loop2
jr .loop
; 8c538 (23:4538)
.wedge1 db 2, 3, 5, 4, 9, -1
.wedge2 db 1, 1, 2, 2, 4, 2, 4, 2, 3, -1
.wedge3 db 2, 1, 3, 1, 4, 1, 4, 1, 4, 1, 3, 1, 2, 1, 1, 1, 1, -1
.wedge4 db 4, 1, 4, 0, 3, 1, 3, 0, 2, 1, 2, 0, 1, -1
.wedge5 db 4, 0, 3, 0, 3, 0, 2, 0, 2, 0, 1, 0, 1, 0, 1, -1
; 8c578
StartTrainerBattle_SetUpForRandomScatterOutro: ; 8c578 (23:4578)
callba Function5602
ld a, $5 ; BANK(LYOverrides)
ld [rSVBK], a
call StartTrainerBattle_NextScene
ld a, $10
ld [wcf64], a
ld a, $1
ld [hBGMapMode], a
ret
StartTrainerBattle_SpeckleToBlack: ; 8c58f (23:458f)
ld hl, wcf64
ld a, [hl]
and a
jr z, .done
dec [hl]
ld c, $c
.loop
push bc
call .BlackOutRandomTile
pop bc
dec c
jr nz, .loop
ret
.done
ld a, $1
ld [hBGMapMode], a
call DelayFrame
call DelayFrame
call DelayFrame
xor a
ld [hBGMapMode], a
ld a, $20
ld [wJumptableIndex], a
ret
.BlackOutRandomTile: ; 8c5b8 (23:45b8)
.y_loop
call Random
cp SCREEN_HEIGHT
jr nc, .y_loop
ld b, a
.x_loop
call Random
cp SCREEN_WIDTH
jr nc, .x_loop
ld c, a
hlcoord 0, -1
ld de, SCREEN_WIDTH
inc b
.row_loop
add hl, de
dec b
jr nz, .row_loop
add hl, bc
; If the tile has already been blacked out,
; sample a new tile
ld a, [hl]
cp $ff
jr z, .y_loop
ld [hl], $ff
ret
StartTrainerBattle_LoadPokeBallGraphics: ; 8c5dc (23:45dc)
ld a, [OtherTrainerClass]
and a
jp z, .nextscene ; don't need to be here if wild
xor a
ld [hBGMapMode], a
hlcoord 0, 0, AttrMap
ld bc, SCREEN_HEIGHT * SCREEN_WIDTH
inc b
inc c
jr .enter_loop_midway
.loop
; set all pals to 7
ld a, [hl]
or %00000111
ld [hli], a
.enter_loop_midway
dec c
jr nz, .loop
dec b
jr nz, .loop
call .loadpokeballgfx ; ld a, [OtherTrainerClass] \ ld de, PokeBallTransition \ ret
hlcoord 2, 1
ld b, SCREEN_WIDTH - 4
.loop2
push hl
ld c, 2
.loop3
push hl
ld a, [de]
inc de
.loop4
; Loading is done bit by bit
and a
jr z, .done
sla a
jr nc, .no_load
ld [hl], $fe
.no_load
inc hl
jr .loop4
.done
pop hl
push bc
ld bc, (SCREEN_WIDTH - 4) / 2
add hl, bc
pop bc
dec c
jr nz, .loop3
pop hl
push bc
ld bc, SCREEN_WIDTH
add hl, bc
pop bc
dec b
jr nz, .loop2
ld a, [hCGB]
and a
jr nz, .cgb
ld a, $1
ld [hBGMapMode], a
call DelayFrame
call DelayFrame
jr .nextscene
.cgb
ld hl, .daypals
ld a, [TimeOfDayPal]
and (1 << 2) - 1
cp 3
jr nz, .daytime
ld hl, .nightpals
.daytime
ld a, [rSVBK]
push af
ld a, $5 ; WRAM5 = palettes
ld [rSVBK], a
call .copypals
push hl
ld de, UnknBGPals palette PAL_BG_TEXT
ld bc, 1 palettes
call CopyBytes
pop hl
ld de, BGPals palette PAL_BG_TEXT
ld bc, 1 palettes
call CopyBytes
pop af
ld [rSVBK], a
ld a, $1
ld [hCGBPalUpdate], a
call DelayFrame
call BattleStart_LoadEDTile
.nextscene ; 8c673 (23:4673)
call StartTrainerBattle_NextScene
ret
.copypals ; 8c677 (23:4677)
ld de, UnknBGPals palette PAL_BG_TEXT
call .copy
ld de, BGPals palette PAL_BG_TEXT
call .copy
ld de, UnknOBPals palette PAL_OW_TREE
call .copy
ld de, OBPals palette PAL_OW_TREE
call .copy
ld de, UnknOBPals palette PAL_OW_ROCK
call .copy
ld de, OBPals palette PAL_OW_ROCK
.copy ; 8c698 (23:4698)
push hl
ld bc, 1 palettes
call CopyBytes
pop hl
ret
; 8c6a1 (23:46a1)
.daypals ; 8c6a1
RGB 31, 18, 29
RGB 31, 11, 15
RGB 31, 05, 05
RGB 07, 07, 07
; 8c6a9
.nightpals ; 8c6a9
RGB 31, 18, 29
RGB 31, 05, 05
RGB 31, 05, 05
RGB 31, 05, 05
.loadpokeballgfx
ld a, [OtherTrainerClass]
ld de, PokeBallTransition
ret
PokeBallTransition:
db %00000011, %11000000
db %00001111, %11110000
db %00111100, %00111100
db %00110000, %00001100
db %01100000, %00000110
db %01100011, %11000110
db %11000110, %01100011
db %11111100, %00111111
db %11111100, %00111111
db %11000110, %01100011
db %01100011, %11000110
db %01100000, %00000110
db %00110000, %00001100
db %00111100, %00111100
db %00001111, %11110000
db %00000011, %11000000
WipeLYOverrides: ; 8c6d8
ld a, [rSVBK]
push af
ld a, $5
ld [rSVBK], a
ld hl, LYOverrides
call .wipe
ld hl, LYOverridesBackup
call .wipe
pop af
ld [rSVBK], a
ret
; 8c6ef
.wipe ; 8c6ef
xor a
ld c, SCREEN_HEIGHT_PX
.loop
ld [hli], a
dec c
jr nz, .loop
ret
; 8c6f7
StartTrainerBattle_DrawSineWave: ; 8c6f7 (23:46f7)
and (1 << 6) - 1
cp 1 << 5
jr nc, .okay
call .DoSineWave
ld a, h
ret
.okay
and (1 << 5) - 1
call .DoSineWave
ld a, h
xor -1 ; cpl
inc a
ret
.DoSineWave: ; 8c70c (23:470c)
ld e, a
ld a, d
ld d, 0
ld hl, .sinewave
add hl, de
add hl, de
ld e, [hl]
inc hl
ld d, [hl]
ld hl, 0
.loop
srl a
jr nc, .skip
add hl, de
.skip
sla e
rl d
and a
jr nz, .loop
ret
; 8c728 (23:4728)
.sinewave ; 8c728
sine_wave $100
; 8c768
zoombox: macro
; width, height, start y, start x
db \1, \2
dwcoord \3, \4
endm
StartTrainerBattle_ZoomToBlack: ; 8c768 (23:4768)
callba Function5602
ld de, .boxes
.loop
ld a, [de]
cp -1
jr z, .done
inc de
ld c, a
ld a, [de]
inc de
ld b, a
ld a, [de]
inc de
ld l, a
ld a, [de]
inc de
ld h, a
xor a
ld [hBGMapMode], a
call .Copy
call WaitBGMap
jr .loop
.done
ld a, $20
ld [wJumptableIndex], a
ret
; 8c792 (23:4792)
.boxes ; 8c792
zoombox 4, 2, 8, 8
zoombox 6, 4, 7, 7
zoombox 8, 6, 6, 6
zoombox 10, 8, 5, 5
zoombox 12, 10, 4, 4
zoombox 14, 12, 3, 3
zoombox 16, 14, 2, 2
zoombox 18, 16, 1, 1
zoombox 20, 18, 0, 0
db -1
; 8c7b7
.Copy: ; 8c7b7 (23:47b7)
ld a, $ff
.row
push bc
push hl
.col
ld [hli], a
dec c
jr nz, .col
pop hl
ld bc, SCREEN_WIDTH
add hl, bc
pop bc
dec b
jr nz, .row
ret
; 8c7c9 (23:47c9)