diff options
| -rw-r--r-- | Increase-Pokémon-sprite-animation-size.md | 65 |
1 files changed, 51 insertions, 14 deletions
diff --git a/Increase-Pokémon-sprite-animation-size.md b/Increase-Pokémon-sprite-animation-size.md index a4b7a1f..da1e672 100644 --- a/Increase-Pokémon-sprite-animation-size.md +++ b/Increase-Pokémon-sprite-animation-size.md @@ -4,8 +4,9 @@ By default, Pokémon sprite animations have maximum sizes that limit how creativ ## Contents - [1. Understanding the problem](#1-understanding-the-problem) -- [2. Edit engine/gfx/load_pics.asm](#2-edit-enginegfxload_picsasm) -- [3. Edit engine/gfx/pic_animation.asm](#3-edit-enginegfxpic_animationasm) +- [2. Edit wram.asm and sram.asm](#2-edit-wramasm-and-sramasm) +- [3. Edit engine/gfx/load_pics.asm](#3-edit-enginegfxload_picsasm) +- [4. Edit engine/gfx/pic_animation.asm](#4-edit-enginegfxpic_animationasm) ## 1. Understanding the problem @@ -47,7 +48,43 @@ The top-left segment of VRAM (video memory) stores tiles for move animations. Th By studying how the animation graphics are loaded and played, we can use the entire bottom-left and middle-left segments to allow 255-tile animations. -## 2. Edit engine/gfx/load_pics.asm +## 2. Edit wram.asm and sram.asm + +Edit [wram.asm](../blob/master/wram.asm): + +```diff + SECTION "Scratch RAM", WRAMX + + UNION ; d000 + wScratchTileMap:: ds BG_MAP_WIDTH * BG_MAP_HEIGHT + wScratchAttrMap:: ds BG_MAP_WIDTH * BG_MAP_HEIGHT + + NEXTU ; d000 +-wDecompressScratch:: ds $80 tiles +-wDecompressEnemyFrontpic:: ds $80 tiles ++wDecompressScratch:: ds $160 tiles + ENDU ; e000 +``` + +Edit [sram.asm](../blob/master/sram.asm): + +```diff + SECTION "Scratch", SRAM + ++UNION ; a000 + sScratch:: ds $600 ; a000 ++ ++NEXTU ; a000 ++sEnemyFrontpicSize: db ++ ds $f ++sDecompressEnemyFrontpic: ds $100 ++ENDU ; a600 +``` + +TODO: Explain changes. + + +## 3. Edit engine/gfx/load_pics.asm Most of the code and idea was taken from Pokémon Prism. @@ -90,7 +127,7 @@ Most of the code and idea was taken from Pokémon Prism. ```diff _GetFrontpic: -+ ld a, BANK(sScratch) ++ ld a, BANK(sEnemyFrontpicSize) + call GetSRAMBank push de call GetBaseData @@ -111,17 +148,17 @@ Most of the code and idea was taken from Pokémon Prism. + ld a, d + and $f0 + or e -+ ld [sScratch], a ++ ld [sEnemyFrontpicSize], a pop bc - ld hl, wDecompressScratch - ld de, wDecompressEnemyFrontpic -+ ld hl, sScratch + $10 ++ ld hl, sDecompressEnemyFrontpic + ld de, wDecompressScratch call PadFrontpic pop hl push hl - ld de, wDecompressScratch -+ ld de, sScratch + $10 ++ ld de, sDecompressEnemyFrontpic ld c, 7 * 7 ld a, [hROMBank] ld b, a @@ -136,7 +173,7 @@ Most of the code and idea was taken from Pokémon Prism. - ld [rVBK], a push hl - ld de, wDecompressScratch -+ ld de, sScratch + $10 ++ ld de, sDecompressEnemyFrontpic ld c, 7 * 7 ld a, [hROMBank] ld b, a @@ -165,7 +202,7 @@ Most of the code and idea was taken from Pokémon Prism. ld c, 7 * 7 .got_dims + ; Get animation size (total - base sprite size) -+ ld a, [sScratch] ++ ld a, [sEnemyFrontpicSize] + sub c + ret z ; Return if there's no animation + ld c, a @@ -183,7 +220,7 @@ Most of the code and idea was taken from Pokémon Prism. + jr c, .finish + ; Otherwise, load the first part... + inc a -+ ld [sScratch], a ++ ld [sEnemyFrontpicSize], a + ld c, 127 - 7 * 7 call Get2bpp - xor a @@ -194,7 +231,7 @@ Most of the code and idea was taken from Pokémon Prism. + ld hl, vTiles4 + ld a, [hROMBank] + ld b, a -+ ld a, [sScratch] ++ ld a, [sEnemyFrontpicSize] + ld c, a +.finish + jp Get2bpp @@ -229,10 +266,10 @@ Most of the code and idea was taken from Pokémon Prism. ret ``` -TODO: explain changes. +TODO: Explain changes. -## 3. Edit engine/gfx/pic_animation.asm +## 4. Edit engine/gfx/pic_animation.asm ```diff PokeAnim_ConvertAndApplyBitmask: @@ -254,7 +291,7 @@ TODO: explain changes. ret ``` -TODO: explain changes. +TODO: Explain changes. Now we're done! |