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Diffstat (limited to 'src/home/load_animation.asm')
| -rw-r--r-- | src/home/load_animation.asm | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/src/home/load_animation.asm b/src/home/load_animation.asm new file mode 100644 index 0000000..5b64b7f --- /dev/null +++ b/src/home/load_animation.asm @@ -0,0 +1,301 @@ +; clear [SOMETHING] - something relating to animations +Func_3ca0: ; 3ca0 (0:3ca0) + xor a + ld [wd5d7], a + ; fallthrough + +Func_3ca4: ; 3ca4 (0:3ca4) + ldh a, [hBankROM] + push af + ld a, BANK(Func_1296e) + call BankswitchROM + call Func_1296e + pop af + call BankswitchROM + ret + +HandleAllSpriteAnimations: ; 3cb4 (0:3cb4) + ldh a, [hBankROM] + push af + ld a, BANK(_HandleAllSpriteAnimations) + call BankswitchROM + call _HandleAllSpriteAnimations + pop af + call BankswitchROM + ret + +; hl - pointer to animation frame +; wd5d6 - bank of animation frame +DrawSpriteAnimationFrame: ; 3cc4 (0:3cc4) + ldh a, [hBankROM] + push af + ld a, [wd5d6] + call BankswitchROM + ld a, [wCurrSpriteXPos] + cp $f0 + ld a, 0 + jr c, .notNearRight + dec a +.notNearRight + ld [wCurrSpriteRightEdgeCheck], a + ld a, [wCurrSpriteYPos] + cp $f0 + ld a, 0 + jr c, .setBottomEdgeCheck + dec a +.setBottomEdgeCheck + ld [wCurrSpriteBottomEdgeCheck], a + ld a, [hli] + or a + jp z, .done + ld c, a +.loop + push bc + push hl + ld b, 0 + bit 7, [hl] + jr z, .beginY + dec b +.beginY + ld a, [wCurrSpriteAttributes] + bit OAM_Y_FLIP, a + jr z, .unflippedY + ld a, [hl] + add 8 ; size of a tile + ld c, a + ld a, 0 + adc b + ld b, a + ld a, [wCurrSpriteYPos] + sub c + ld e, a + ld a, [wCurrSpriteBottomEdgeCheck] + sbc b + jr .finishYPosition +.unflippedY + ld a, [wCurrSpriteYPos] + add [hl] + ld e, a + ld a, [wCurrSpriteBottomEdgeCheck] + adc b +.finishYPosition + or a + jr nz, .endCurrentIteration + inc hl + ld b, 0 + bit 7, [hl] + jr z, .beginX + dec b +.beginX + ld a, [wCurrSpriteAttributes] + bit OAM_X_FLIP, a + jr z, .unflippedX + ld a, [hl] + add 8 ; size of a tile + ld c, a + ld a, 0 + adc b + ld b, a + ld a, [wCurrSpriteXPos] + sub c + ld d, a + ld a, [wCurrSpriteRightEdgeCheck] + sbc b + jr .finishXPosition +.unflippedX + ld a, [wCurrSpriteXPos] + add [hl] + ld d, a + ld a, [wCurrSpriteRightEdgeCheck] + adc b +.finishXPosition + or a + jr nz, .endCurrentIteration + inc hl + ld a, [wCurrSpriteTileID] + add [hl] + ld c, a + inc hl + ld a, [wCurrSpriteAttributes] + add [hl] + and OAM_PALETTE | (1 << OAM_OBP_NUM) + ld b, a + ld a, [wCurrSpriteAttributes] + xor [hl] + and (1 << OAM_X_FLIP) | (1 << OAM_Y_FLIP) | (1 << OAM_PRIORITY) + or b + ld b, a + inc hl ; unnecessary + call SetOneObjectAttributes +.endCurrentIteration + pop hl + ld bc, 4 ; size of info for one sub tile + add hl, bc + pop bc + dec c + jr nz, .loop +.done + pop af + call BankswitchROM + ret + +; Loads a pointer to the current animation frame into SPRITE_ANIM_FRAME_DATA_POINTER using +; the current frame's offset +; [wd4ca] - current frame offset +; wTempPointer* - Pointer to current Animation +GetAnimationFramePointer: ; 3d72 (0:3d72) + ldh a, [hBankROM] + push af + push hl + push hl + ld a, [wd4ca] + cp $ff + jr nz, .useLoadedOffset + ld de, SpriteNullAnimationPointer + xor a + jr .loadPointer +.useLoadedOffset + ld a, [wTempPointer] + ld l, a + ld a, [wTempPointer + 1] + ld h, a + ld a, [wTempPointerBank] + call BankswitchROM + ld a, [hli] + + push af + ld a, [wd4ca] + rlca + ld e, [hl] + add e + ld e, a + inc hl + ld a, [hl] + adc 0 + ld d, a + pop af + +.loadPointer + add BANK(SpriteNullAnimationPointer) + pop hl + ld bc, SPRITE_ANIM_FRAME_BANK + add hl, bc + ld [hli], a + call BankswitchROM + ld a, [de] + ld [hli], a + inc de + ld a, [de] + ld [hl], a + pop hl + pop af + call BankswitchROM + ret + +; return hl pointing to the start of a sprite in wSpriteAnimBuffer. +; the sprite is identified by its index in wWhichSprite. +GetFirstSpriteAnimBufferProperty: ; 3db7 (0:3db7) + push bc + ld c, SPRITE_ANIM_ENABLED + call GetSpriteAnimBufferProperty + pop bc + ret + +; return hl pointing to the property (byte) c of a sprite in wSpriteAnimBuffer. +; the sprite is identified by its index in wWhichSprite. +GetSpriteAnimBufferProperty: ; 3dbf (0:3dbf) + ld a, [wWhichSprite] +; fallthrough + +GetSpriteAnimBufferProperty_SpriteInA: ; 3dc2 (0:3dc2) + cp SPRITE_ANIM_BUFFER_CAPACITY + jr c, .got_sprite + debug_nop + ld a, SPRITE_ANIM_BUFFER_CAPACITY - 1 ; default to last sprite +.got_sprite + push bc + swap a ; a *= SPRITE_ANIM_LENGTH + push af + and $f + ld b, a + pop af + and $f0 + or c ; add the property offset + ld c, a + ld hl, wSpriteAnimBuffer + add hl, bc + pop bc + ret + +Func_3ddb: ; 3ddb (0:3ddb) + push hl + push bc + ld c, SPRITE_ANIM_FLAGS + call GetSpriteAnimBufferProperty_SpriteInA + res 2, [hl] + pop bc + pop hl + ret + +Func_3de7: ; 3de7 (0:3de7) + push hl + push bc + ld c, SPRITE_ANIM_FLAGS + call GetSpriteAnimBufferProperty_SpriteInA + set 2, [hl] + pop bc + pop hl + ret + +LoadScene: ; 3df3 (0:3df3) + push af + ldh a, [hBankROM] + push af + push hl + ld a, BANK(_LoadScene) + call BankswitchROM + ld hl, sp+$5 + ld a, [hl] + call _LoadScene + call FlushAllPalettes + pop hl + pop af + call BankswitchROM + pop af + ld a, [wSceneSpriteIndex] + ret + +; draws player's portrait at b,c +DrawPlayerPortrait: ; 3e10 (0:3e10) + ld a, $1 + ld [wd61e], a + ld a, TILEMAP_PLAYER +; fallthrough + +Func_3e17: ; 3e17 (0:3e17) + ld [wCurTilemap], a + ldh a, [hBankROM] + push af + ld a, BANK(Func_12fc6) + call BankswitchROM + call Func_12fc6 + pop af + call BankswitchROM + ret + +; draws opponent's portrait given in a at b,c +Func_3e2a: ; 3e2a (0:3e2a) + ld [wd61e], a + ld a, TILEMAP_OPPONENT + jr Func_3e17 + +Func_3e31: ; 3e31 (0:3e31) + ldh a, [hBankROM] + push af + call HandleAllSpriteAnimations + ld a, BANK(DoLoadedFramesetSubgroupsFrame) + call BankswitchROM + call DoLoadedFramesetSubgroupsFrame + pop af + call BankswitchROM + ret |