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| -rw-r--r-- | Increase-Pokémon-sprite-animation-size.md | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/Increase-Pokémon-sprite-animation-size.md b/Increase-Pokémon-sprite-animation-size.md new file mode 100644 index 0000000..c404043 --- /dev/null +++ b/Increase-Pokémon-sprite-animation-size.md @@ -0,0 +1,170 @@ +This page is a major TODO. + +Most of the code and idea was taken from Prism, adapted for current pokecrystal. + +```diff +diff --git a/engine/gfx/load_pics.asm b/engine/gfx/load_pics.asm +--- a/engine/gfx/load_pics.asm ++++ b/engine/gfx/load_pics.asm +@@ -58,7 +58,7 @@ GetMonFrontpic: + call _GetFrontpic + pop af + ld [rSVBK], a +- ret ++ jp CloseSRAM + + GetAnimatedFrontpic: + ld a, [wCurPartySpecies] +@@ -70,12 +70,18 @@ GetAnimatedFrontpic: + xor a + ld [hBGMapMode], a + call _GetFrontpic ++ ld a, BANK(vTiles3) ++ ld [rVBK], a + call GetAnimatedEnemyFrontpic ++ xor a ++ ld [rVBK], a + pop af + ld [rSVBK], a +- ret ++ jp CloseSRAM + + _GetFrontpic: ++ ld a, BANK(sScratch) ++ call GetSRAMBank + push de + call GetBaseData + ld a, [wBasePicSize] +@@ -86,15 +92,24 @@ _GetFrontpic: + ld a, BANK(wDecompressEnemyFrontpic) + ld [rSVBK], a + ld a, b +- ld de, wDecompressEnemyFrontpic ++ ld de, wDecompressScratch + call FarDecompress ++ ++ ; Save decompressed size ++ swap e ++ swap d ++ ld a, d ++ and $f0 ++ or e ++ ld [sScratch], a ++ + pop bc +- ld hl, wDecompressScratch +- ld de, wDecompressEnemyFrontpic ++ ld hl, sScratch + $10 ++ ld de, wDecompressScratch + call PadFrontpic + pop hl + push hl +- ld de, wDecompressScratch ++ ld de, sScratch + $10 + ld c, 7 * 7 + ld a, [hROMBank] + ld b, a +@@ -130,10 +145,8 @@ GetFrontpicPointer: + ret + + GetAnimatedEnemyFrontpic: +- ld a, BANK(vTiles3) +- ld [rVBK], a + push hl +- ld de, wDecompressScratch ++ ld de, sScratch + $10 + ld c, 7 * 7 + ld a, [hROMBank] + ld b, a +@@ -147,18 +160,24 @@ GetAnimatedEnemyFrontpic: + call GetFarWRAMByte + pop hl + and $f +- ld de, wDecompressEnemyFrontpic + 5 * 5 tiles ++ ld de, wDecompressScratch + 5 * 5 tiles + ld c, 5 * 5 + cp 5 + jr z, .got_dims +- ld de, wDecompressEnemyFrontpic + 6 * 6 tiles ++ ld de, wDecompressScratch + 6 * 6 tiles + ld c, 6 * 6 + cp 6 + jr z, .got_dims +- ld de, wDecompressEnemyFrontpic + 7 * 7 tiles ++ ld de, wDecompressScratch + 7 * 7 tiles + ld c, 7 * 7 + .got_dims + ++ ; Get animation size (total - base sprite size) ++ ld a, [sScratch] ++ sub c ++ ret z ; Return if there's no animation ++ ld c, a ++ + push hl + push bc + call LoadFrontpicTiles +@@ -167,10 +186,28 @@ GetAnimatedEnemyFrontpic: + ld de, wDecompressScratch + ld a, [hROMBank] + ld b, a ++ ++ ; If we can load it in a single pass, just do it ++ ld a, c ++ sub (128 - 7 * 7) ++ jr c, .copy_and_finish ++ ++ ; Otherwise, load the first part... ++ inc a ++ ld [sScratch], a ++ ld c, (127 - 7 * 7) + call Get2bpp +- xor a +- ld [rVBK], a +- ret ++ ++ ; Then move up a bit and load the rest ++ ld de, wDecompressScratch + (127 - 7 * 7) tiles ++ ld hl, vTiles4 ++ ld a, [hROMBank] ++ ld b, a ++ ld a, [sScratch] ++ ld c, a ++ ++.copy_and_finish ++ jp Get2bpp + + LoadFrontpicTiles: + ld hl, wDecompressScratch +@@ -184,11 +221,17 @@ LoadFrontpicTiles: + push bc + call LoadOrientedFrontpic + pop bc ++ ld a, c ++ and a ++ jr z, .handle_loop ++ inc b ++ jr .handle_loop + .loop + push bc + ld c, 0 + call LoadOrientedFrontpic + pop bc ++.handle_loop + dec b + jr nz, .loop + ret +diff --git a/engine/gfx/pic_animation.asm b/engine/gfx/pic_animation.asm +--- a/engine/gfx/pic_animation.asm ++++ b/engine/gfx/pic_animation.asm +@@ -621,6 +621,9 @@ PokeAnim_ConvertAndApplyBitmask: + add [hl] + pop hl + ld [hl], a ++ cp $7f ++ ret c ++ inc [hl] + ret + + .GetCoord: +```
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