ref: fbcc8d1b0e05cace2abe2083a88a8c2304efc9d7
dir: /engine/gfx/load_pics.asm/
GetUnownLetter:
; Return Unown letter in wUnownLetter based on DVs at hl
; Take the middle 2 bits of each DV and place them in order:
; atk def spd spc
; .ww..xx. .yy..zz.
; atk
ld a, [hl]
and %01100000
sla a
ld b, a
; def
ld a, [hli]
and %00000110
swap a
srl a
or b
ld b, a
; spd
ld a, [hl]
and %01100000
swap a
sla a
or b
ld b, a
; spc
ld a, [hl]
and %00000110
srl a
or b
; Divide by 10 to get 0-25
ldh [hDividend + 3], a
xor a
ldh [hDividend], a
ldh [hDividend + 1], a
ldh [hDividend + 2], a
ld a, $ff / NUM_UNOWN + 1
ldh [hDivisor], a
ld b, 4
call Divide
; Increment to get 1-26
ldh a, [hQuotient + 3]
inc a
ld [wUnownLetter], a
ret
GetMonFrontpic:
ld a, [wCurPartySpecies]
ld [wCurSpecies], a
call IsAPokemon
ret c
ldh a, [rSVBK]
push af
call _GetFrontpic
pop af
ldh [rSVBK], a
ret
GetAnimatedFrontpic:
ld a, [wCurPartySpecies]
ld [wCurSpecies], a
call IsAPokemon
ret c
ldh a, [rSVBK]
push af
xor a
ldh [hBGMapMode], a
call _GetFrontpic
call GetAnimatedEnemyFrontpic
pop af
ldh [rSVBK], a
ret
_GetFrontpic:
push de
call GetBaseData
ld a, [wBasePicSize]
and $f
ld b, a
push bc
call GetFrontpicPointer
ld a, BANK(wDecompressEnemyFrontpic)
ldh [rSVBK], a
ld a, b
ld de, wDecompressEnemyFrontpic
call FarDecompress
pop bc
ld hl, wDecompressScratch
ld de, wDecompressEnemyFrontpic
call PadFrontpic
pop hl
push hl
ld de, wDecompressScratch
ld c, 7 * 7
ldh a, [hROMBank]
ld b, a
call Get2bpp
pop hl
ret
GetFrontpicPointer:
ld a, [wCurPartySpecies]
cp UNOWN
jr z, .unown
ld a, [wCurPartySpecies]
ld d, BANK(PokemonPicPointers)
jr .ok
.unown
ld a, [wUnownLetter]
ld d, BANK(UnownPicPointers)
.ok
; These are assumed to be at the same address in their respective banks.
assert PokemonPicPointers == UnownPicPointers
ld hl, PokemonPicPointers
dec a
ld bc, 6
call AddNTimes
ld a, d
call GetFarByte
call FixPicBank
push af
inc hl
ld a, d
call GetFarWord
pop bc
ret
GetAnimatedEnemyFrontpic:
ld a, BANK(vTiles3)
ldh [rVBK], a
push hl
ld de, wDecompressScratch
ld c, 7 * 7
ldh a, [hROMBank]
ld b, a
call Get2bpp
pop hl
ld de, 7 * 7 tiles
add hl, de
push hl
ld a, BANK(wBasePicSize)
ld hl, wBasePicSize
call GetFarWRAMByte
pop hl
and $f
ld de, wDecompressEnemyFrontpic + 5 * 5 tiles
ld c, 5 * 5
cp 5
jr z, .got_dims
ld de, wDecompressEnemyFrontpic + 6 * 6 tiles
ld c, 6 * 6
cp 6
jr z, .got_dims
ld de, wDecompressEnemyFrontpic + 7 * 7 tiles
ld c, 7 * 7
.got_dims
push hl
push bc
call LoadFrontpicTiles
pop bc
pop hl
ld de, wDecompressScratch
ldh a, [hROMBank]
ld b, a
call Get2bpp
xor a
ldh [rVBK], a
ret
LoadFrontpicTiles:
ld hl, wDecompressScratch
swap c
ld a, c
and $f
ld b, a
ld a, c
and $f0
ld c, a
push bc
call LoadOrientedFrontpic
pop bc
.loop
push bc
ld c, 0
call LoadOrientedFrontpic
pop bc
dec b
jr nz, .loop
ret
GetMonBackpic:
ld a, [wCurPartySpecies]
call IsAPokemon
ret c
ld a, [wCurPartySpecies]
ld b, a
ld a, [wUnownLetter]
ld c, a
ldh a, [rSVBK]
push af
ld a, BANK(wDecompressScratch)
ldh [rSVBK], a
push de
; These are assumed to be at the same address in their respective banks.
assert PokemonPicPointers == UnownPicPointers
ld hl, PokemonPicPointers
ld a, b
ld d, BANK(PokemonPicPointers)
cp UNOWN
jr nz, .ok
ld a, c
ld d, BANK(UnownPicPointers)
.ok
dec a
ld bc, 6
call AddNTimes
ld bc, 3
add hl, bc
ld a, d
call GetFarByte
call FixPicBank
push af
inc hl
ld a, d
call GetFarWord
ld de, wDecompressScratch
pop af
call FarDecompress
ld hl, wDecompressScratch
ld c, 6 * 6
call FixBackpicAlignment
pop hl
ld de, wDecompressScratch
ldh a, [hROMBank]
ld b, a
call Get2bpp
pop af
ldh [rSVBK], a
ret
FixPicBank:
; This is a thing for some reason.
PICS_FIX EQU $36
EXPORT PICS_FIX
push hl
push bc
sub BANK("Pics 1") - PICS_FIX
ld c, a
ld b, 0
ld hl, .PicsBanks
add hl, bc
ld a, [hl]
pop bc
pop hl
ret
.PicsBanks:
db BANK("Pics 1") ; BANK("Pics 1") + 0
db BANK("Pics 2") ; BANK("Pics 1") + 1
db BANK("Pics 3") ; BANK("Pics 1") + 2
db BANK("Pics 4") ; BANK("Pics 1") + 3
db BANK("Pics 5") ; BANK("Pics 1") + 4
db BANK("Pics 6") ; BANK("Pics 1") + 5
db BANK("Pics 7") ; BANK("Pics 1") + 6
db BANK("Pics 8") ; BANK("Pics 1") + 7
db BANK("Pics 9") ; BANK("Pics 1") + 8
db BANK("Pics 10") ; BANK("Pics 1") + 9
db BANK("Pics 11") ; BANK("Pics 1") + 10
db BANK("Pics 12") ; BANK("Pics 1") + 11
db BANK("Pics 13") ; BANK("Pics 1") + 12
db BANK("Pics 14") ; BANK("Pics 1") + 13
db BANK("Pics 15") ; BANK("Pics 1") + 14
db BANK("Pics 16") ; BANK("Pics 1") + 15
db BANK("Pics 17") ; BANK("Pics 1") + 16
db BANK("Pics 18") ; BANK("Pics 1") + 17
db BANK("Pics 19") ; BANK("Pics 1") + 18
db BANK("Pics 20") ; BANK("Pics 1") + 19
db BANK("Pics 21") ; BANK("Pics 1") + 20
db BANK("Pics 22") ; BANK("Pics 1") + 21
db BANK("Pics 23") ; BANK("Pics 1") + 22
db BANK("Pics 24") ; BANK("Pics 1") + 23
GSIntro_GetMonFrontpic: ; unreferenced
ld a, c
push de
ld hl, PokemonPicPointers
dec a
ld bc, 6
call AddNTimes
ld a, BANK(PokemonPicPointers)
call GetFarByte
call FixPicBank
push af
inc hl
ld a, BANK(PokemonPicPointers)
call GetFarWord
pop af
pop de
call FarDecompress
ret
GetTrainerPic:
ld a, [wTrainerClass]
and a
ret z
cp NUM_TRAINER_CLASSES + 1
ret nc
call WaitBGMap
xor a
ldh [hBGMapMode], a
ld hl, TrainerPicPointers
ld a, [wTrainerClass]
dec a
ld bc, 3
call AddNTimes
ldh a, [rSVBK]
push af
ld a, BANK(wDecompressScratch)
ldh [rSVBK], a
push de
ld a, BANK(TrainerPicPointers)
call GetFarByte
call FixPicBank
push af
inc hl
ld a, BANK(TrainerPicPointers)
call GetFarWord
pop af
ld de, wDecompressScratch
call FarDecompress
pop hl
ld de, wDecompressScratch
ld c, 7 * 7
ldh a, [hROMBank]
ld b, a
call Get2bpp
pop af
ldh [rSVBK], a
call WaitBGMap
ld a, 1
ldh [hBGMapMode], a
ret
DecompressGet2bpp:
; Decompress lz data from b:hl to wDecompressScratch, then copy it to address de.
ldh a, [rSVBK]
push af
ld a, BANK(wDecompressScratch)
ldh [rSVBK], a
push de
push bc
ld a, b
ld de, wDecompressScratch
call FarDecompress
pop bc
ld de, wDecompressScratch
pop hl
ldh a, [hROMBank]
ld b, a
call Get2bpp
pop af
ldh [rSVBK], a
ret
FixBackpicAlignment:
push de
push bc
ld a, [wBoxAlignment]
and a
jr z, .keep_dims
ld a, c
cp 7 * 7
ld de, 7 * 7 tiles
jr z, .got_dims
cp 6 * 6
ld de, 6 * 6 tiles
jr z, .got_dims
ld de, 5 * 5 tiles
.got_dims
ld a, [hl]
ld b, 0
ld c, 8
.loop
rra
rl b
dec c
jr nz, .loop
ld a, b
ld [hli], a
dec de
ld a, e
or d
jr nz, .got_dims
.keep_dims
pop bc
pop de
ret
PadFrontpic:
; pads frontpic to fill 7x7 box
ld a, b
cp 6
jr z, .six
cp 5
jr z, .five
.seven_loop
ld c, 7 << 4
call LoadOrientedFrontpic
dec b
jr nz, .seven_loop
ret
.six
ld c, 7 << 4
xor a
call .Fill
.six_loop
ld c, (7 - 6) << 4
xor a
call .Fill
ld c, 6 << 4
call LoadOrientedFrontpic
dec b
jr nz, .six_loop
ret
.five
ld c, 7 << 4
xor a
call .Fill
.five_loop
ld c, (7 - 5) << 4
xor a
call .Fill
ld c, 5 << 4
call LoadOrientedFrontpic
dec b
jr nz, .five_loop
ld c, 7 << 4
xor a
call .Fill
ret
.Fill:
ld [hli], a
dec c
jr nz, .Fill
ret
LoadOrientedFrontpic:
ld a, [wBoxAlignment]
and a
jr nz, .x_flip
.left_loop
ld a, [de]
inc de
ld [hli], a
dec c
jr nz, .left_loop
ret
.x_flip
push bc
.right_loop
ld a, [de]
inc de
ld b, a
xor a
rept 8
rr b
rla
endr
ld [hli], a
dec c
jr nz, .right_loop
pop bc
ret