diff options
Diffstat (limited to 'src/engine/gfx/sprite_animations.asm')
| -rw-r--r-- | src/engine/gfx/sprite_animations.asm | 828 |
1 files changed, 604 insertions, 224 deletions
diff --git a/src/engine/gfx/sprite_animations.asm b/src/engine/gfx/sprite_animations.asm index 7c432c6..51e2a3a 100644 --- a/src/engine/gfx/sprite_animations.asm +++ b/src/engine/gfx/sprite_animations.asm @@ -1,224 +1,604 @@ -; \1 = anim data pointer -anim_data_pointer: MACRO - dwb \1, BANK(\1) - BANK(SpriteAnimations) - db $00 ; unused (padding?) -ENDM - -SpriteAnimations: - anim_data_pointer AnimData0 ; SPRITE_ANIM_LIGHT_NPC_UP - anim_data_pointer AnimData1 ; SPRITE_ANIM_LIGHT_NPC_RIGHT - anim_data_pointer AnimData2 ; SPRITE_ANIM_LIGHT_NPC_DOWN - anim_data_pointer AnimData3 ; SPRITE_ANIM_LIGHT_NPC_LEFT - anim_data_pointer AnimData4 ; SPRITE_ANIM_DARK_NPC_UP - anim_data_pointer AnimData5 ; SPRITE_ANIM_DARK_NPC_RIGHT - anim_data_pointer AnimData6 ; SPRITE_ANIM_DARK_NPC_DOWN - anim_data_pointer AnimData7 ; SPRITE_ANIM_DARK_NPC_LEFT - anim_data_pointer AnimData8 ; SPRITE_ANIM_SGB_AMY_LAYING - anim_data_pointer AnimData9 ; SPRITE_ANIM_SGB_AMY_STAND - anim_data_pointer AnimData10 ; SPRITE_ANIM_SGB_CLERK_NPC_UP - anim_data_pointer AnimData11 ; SPRITE_ANIM_SGB_CLERK_NPC_RIGHT - anim_data_pointer AnimData12 ; SPRITE_ANIM_SGB_CLERK_NPC_DOWN - anim_data_pointer AnimData13 ; SPRITE_ANIM_SGB_CLERK_NPC_LEFT - anim_data_pointer AnimData14 ; SPRITE_ANIM_BLUE_NPC_UP - anim_data_pointer AnimData15 ; SPRITE_ANIM_BLUE_NPC_RIGHT - anim_data_pointer AnimData16 ; SPRITE_ANIM_BLUE_NPC_DOWN - anim_data_pointer AnimData17 ; SPRITE_ANIM_BLUE_NPC_LEFT - anim_data_pointer AnimData18 ; SPRITE_ANIM_PINK_NPC_UP - anim_data_pointer AnimData19 ; SPRITE_ANIM_PINK_NPC_RIGHT - anim_data_pointer AnimData20 ; SPRITE_ANIM_PINK_NPC_DOWN - anim_data_pointer AnimData21 ; SPRITE_ANIM_PINK_NPC_LEFT - anim_data_pointer AnimData22 ; SPRITE_ANIM_YELLOW_NPC_UP - anim_data_pointer AnimData23 ; SPRITE_ANIM_YELLOW_NPC_RIGHT - anim_data_pointer AnimData24 ; SPRITE_ANIM_YELLOW_NPC_DOWN - anim_data_pointer AnimData25 ; SPRITE_ANIM_YELLOW_NPC_LEFT - anim_data_pointer AnimData26 ; SPRITE_ANIM_GREEN_NPC_UP - anim_data_pointer AnimData27 ; SPRITE_ANIM_GREEN_NPC_RIGHT - anim_data_pointer AnimData28 ; SPRITE_ANIM_GREEN_NPC_DOWN - anim_data_pointer AnimData29 ; SPRITE_ANIM_GREEN_NPC_LEFT - anim_data_pointer AnimData30 ; SPRITE_ANIM_RED_NPC_UP - anim_data_pointer AnimData31 ; SPRITE_ANIM_RED_NPC_RIGHT - anim_data_pointer AnimData32 ; SPRITE_ANIM_RED_NPC_DOWN - anim_data_pointer AnimData33 ; SPRITE_ANIM_RED_NPC_LEFT - anim_data_pointer AnimData34 ; SPRITE_ANIM_PURPLE_NPC_UP - anim_data_pointer AnimData35 ; SPRITE_ANIM_PURPLE_NPC_RIGHT - anim_data_pointer AnimData36 ; SPRITE_ANIM_PURPLE_NPC_DOWN - anim_data_pointer AnimData37 ; SPRITE_ANIM_PURPLE_NPC_LEFT - anim_data_pointer AnimData38 ; SPRITE_ANIM_WHITE_NPC_UP - anim_data_pointer AnimData39 ; SPRITE_ANIM_WHITE_NPC_RIGHT - anim_data_pointer AnimData40 ; SPRITE_ANIM_WHITE_NPC_DOWN - anim_data_pointer AnimData41 ; SPRITE_ANIM_WHITE_NPC_LEFT - anim_data_pointer AnimData42 ; SPRITE_ANIM_INDIGO_NPC_UP - anim_data_pointer AnimData43 ; SPRITE_ANIM_INDIGO_NPC_RIGHT - anim_data_pointer AnimData44 ; SPRITE_ANIM_INDIGO_NPC_DOWN - anim_data_pointer AnimData45 ; SPRITE_ANIM_INDIGO_NPC_LEFT - anim_data_pointer AnimData46 ; SPRITE_ANIM_CGB_AMY_LAYING - anim_data_pointer AnimData47 ; SPRITE_ANIM_CGB_AMY_STAND - anim_data_pointer AnimData48 ; SPRITE_ANIM_CGB_CLERK_NPC_UP - anim_data_pointer AnimData49 ; SPRITE_ANIM_CGB_CLERK_NPC_RIGHT - anim_data_pointer AnimData50 ; SPRITE_ANIM_CGB_CLERK_NPC_DOWN - anim_data_pointer AnimData51 ; SPRITE_ANIM_CGB_CLERK_NPC_LEFT - anim_data_pointer AnimData52 ; SPRITE_ANIM_SGB_VOLCANO_SMOKE - anim_data_pointer AnimData53 ; SPRITE_ANIM_SGB_OWMAP_CURSOR - anim_data_pointer AnimData54 ; SPRITE_ANIM_SGB_OWMAP_CURSOR_FAST - anim_data_pointer AnimData55 ; SPRITE_ANIM_CGB_VOLCANO_SMOKE - anim_data_pointer AnimData56 ; SPRITE_ANIM_CGB_OWMAP_CURSOR - anim_data_pointer AnimData57 ; SPRITE_ANIM_CGB_OWMAP_CURSOR_FAST - anim_data_pointer AnimData58 ; SPRITE_ANIM_TORCH - anim_data_pointer AnimData59 ; SPRITE_ANIM_SGB_CARD_TOP_LEFT - anim_data_pointer AnimData60 ; SPRITE_ANIM_SGB_CARD_TOP_RIGHT - anim_data_pointer AnimData61 ; SPRITE_ANIM_SGB_CARD_LEFT_SPARK - anim_data_pointer AnimData62 ; SPRITE_ANIM_SGB_CARD_BOTTOM_LEFT - anim_data_pointer AnimData63 ; SPRITE_ANIM_SGB_CARD_BOTTOM_RIGHT - anim_data_pointer AnimData64 ; SPRITE_ANIM_SGB_CARD_RIGHT_SPARK - anim_data_pointer AnimData65 ; SPRITE_ANIM_CGB_CARD_TOP_LEFT - anim_data_pointer AnimData66 ; SPRITE_ANIM_CGB_CARD_TOP_RIGHT - anim_data_pointer AnimData67 ; SPRITE_ANIM_CGB_CARD_LEFT_SPARK - anim_data_pointer AnimData68 ; SPRITE_ANIM_CGB_CARD_BOTTOM_LEFT - anim_data_pointer AnimData69 ; SPRITE_ANIM_CGB_CARD_BOTTOM_RIGHT - anim_data_pointer AnimData70 ; SPRITE_ANIM_CGB_CARD_RIGHT_SPARK - anim_data_pointer AnimData71 ; SPRITE_ANIM_71 - anim_data_pointer AnimData72 ; SPRITE_ANIM_72 - anim_data_pointer AnimData73 ; SPRITE_ANIM_73 - anim_data_pointer AnimData74 ; SPRITE_ANIM_74 - anim_data_pointer AnimData75 ; SPRITE_ANIM_75 - anim_data_pointer AnimData76 ; SPRITE_ANIM_76 - anim_data_pointer AnimData77 ; SPRITE_ANIM_77 - anim_data_pointer AnimData78 ; SPRITE_ANIM_78 - anim_data_pointer AnimData79 ; SPRITE_ANIM_79 - anim_data_pointer AnimData80 ; SPRITE_ANIM_80 - anim_data_pointer AnimData81 ; SPRITE_ANIM_81 - anim_data_pointer AnimData82 ; SPRITE_ANIM_82 - anim_data_pointer AnimData83 ; SPRITE_ANIM_83 - anim_data_pointer AnimData84 ; SPRITE_ANIM_84 - anim_data_pointer AnimData85 ; SPRITE_ANIM_85 - anim_data_pointer AnimData86 ; SPRITE_ANIM_86 - anim_data_pointer AnimData87 ; SPRITE_ANIM_87 - anim_data_pointer AnimData88 ; SPRITE_ANIM_88 - anim_data_pointer AnimData89 ; SPRITE_ANIM_89 - anim_data_pointer AnimData90 ; SPRITE_ANIM_90 - anim_data_pointer AnimData91 ; SPRITE_ANIM_91 - anim_data_pointer AnimData92 ; SPRITE_ANIM_92 - anim_data_pointer AnimData93 ; SPRITE_ANIM_93 - anim_data_pointer AnimData94 ; SPRITE_ANIM_94 - anim_data_pointer AnimData95 ; SPRITE_ANIM_95 - anim_data_pointer AnimData96 ; SPRITE_ANIM_96 - anim_data_pointer AnimData97 ; SPRITE_ANIM_97 - anim_data_pointer AnimData98 ; SPRITE_ANIM_98 - anim_data_pointer AnimData99 ; SPRITE_ANIM_99 - anim_data_pointer AnimData100 ; SPRITE_ANIM_100 - anim_data_pointer AnimData101 ; SPRITE_ANIM_101 - anim_data_pointer AnimData102 ; SPRITE_ANIM_102 - anim_data_pointer AnimData103 ; SPRITE_ANIM_103 - anim_data_pointer AnimData104 ; SPRITE_ANIM_104 - anim_data_pointer AnimData105 ; SPRITE_ANIM_105 - anim_data_pointer AnimData106 ; SPRITE_ANIM_106 - anim_data_pointer AnimData107 ; SPRITE_ANIM_107 - anim_data_pointer AnimData108 ; SPRITE_ANIM_108 - anim_data_pointer AnimData109 ; SPRITE_ANIM_109 - anim_data_pointer AnimData110 ; SPRITE_ANIM_110 - anim_data_pointer AnimData111 ; SPRITE_ANIM_111 - anim_data_pointer AnimData112 ; SPRITE_ANIM_112 - anim_data_pointer AnimData113 ; SPRITE_ANIM_113 - anim_data_pointer AnimData114 ; SPRITE_ANIM_114 - anim_data_pointer AnimData115 ; SPRITE_ANIM_115 - anim_data_pointer AnimData116 ; SPRITE_ANIM_116 - anim_data_pointer AnimData117 ; SPRITE_ANIM_117 - anim_data_pointer AnimData118 ; SPRITE_ANIM_118 - anim_data_pointer AnimData119 ; SPRITE_ANIM_119 - anim_data_pointer AnimData120 ; SPRITE_ANIM_120 - anim_data_pointer AnimData121 ; SPRITE_ANIM_121 - anim_data_pointer AnimData122 ; SPRITE_ANIM_122 - anim_data_pointer AnimData123 ; SPRITE_ANIM_123 - anim_data_pointer AnimData124 ; SPRITE_ANIM_124 - anim_data_pointer AnimData125 ; SPRITE_ANIM_125 - anim_data_pointer AnimData126 ; SPRITE_ANIM_126 - anim_data_pointer AnimData127 ; SPRITE_ANIM_127 - anim_data_pointer AnimData128 ; SPRITE_ANIM_128 - anim_data_pointer AnimData129 ; SPRITE_ANIM_129 - anim_data_pointer AnimData130 ; SPRITE_ANIM_130 - anim_data_pointer AnimData131 ; SPRITE_ANIM_131 - anim_data_pointer AnimData132 ; SPRITE_ANIM_132 - anim_data_pointer AnimData133 ; SPRITE_ANIM_133 - anim_data_pointer AnimData134 ; SPRITE_ANIM_134 - anim_data_pointer AnimData135 ; SPRITE_ANIM_135 - anim_data_pointer AnimData136 ; SPRITE_ANIM_136 - anim_data_pointer AnimData137 ; SPRITE_ANIM_137 - anim_data_pointer AnimData138 ; SPRITE_ANIM_138 - anim_data_pointer AnimData139 ; SPRITE_ANIM_139 - anim_data_pointer AnimData140 ; SPRITE_ANIM_140 - anim_data_pointer AnimData141 ; SPRITE_ANIM_141 - anim_data_pointer AnimData142 ; SPRITE_ANIM_142 - anim_data_pointer AnimData143 ; SPRITE_ANIM_143 - anim_data_pointer AnimData144 ; SPRITE_ANIM_144 - anim_data_pointer AnimData145 ; SPRITE_ANIM_145 - anim_data_pointer AnimData146 ; SPRITE_ANIM_146 - anim_data_pointer AnimData147 ; SPRITE_ANIM_147 - anim_data_pointer AnimData148 ; SPRITE_ANIM_148 - anim_data_pointer AnimData149 ; SPRITE_ANIM_149 - anim_data_pointer AnimData150 ; SPRITE_ANIM_150 - anim_data_pointer AnimData151 ; SPRITE_ANIM_151 - anim_data_pointer AnimData152 ; SPRITE_ANIM_152 - anim_data_pointer AnimData153 ; SPRITE_ANIM_153 - anim_data_pointer AnimData154 ; SPRITE_ANIM_154 - anim_data_pointer AnimData155 ; SPRITE_ANIM_155 - anim_data_pointer AnimData156 ; SPRITE_ANIM_156 - anim_data_pointer AnimData157 ; SPRITE_ANIM_157 - anim_data_pointer AnimData158 ; SPRITE_ANIM_158 - anim_data_pointer AnimData159 ; SPRITE_ANIM_159 - anim_data_pointer AnimData160 ; SPRITE_ANIM_160 - anim_data_pointer AnimData161 ; SPRITE_ANIM_161 - anim_data_pointer AnimData162 ; SPRITE_ANIM_162 - anim_data_pointer AnimData163 ; SPRITE_ANIM_163 - anim_data_pointer AnimData164 ; SPRITE_ANIM_164 - anim_data_pointer AnimData165 ; SPRITE_ANIM_165 - anim_data_pointer AnimData166 ; SPRITE_ANIM_166 - anim_data_pointer AnimData167 ; SPRITE_ANIM_167 - anim_data_pointer AnimData168 ; SPRITE_ANIM_168 - anim_data_pointer AnimData169 ; SPRITE_ANIM_169 - anim_data_pointer AnimData170 ; SPRITE_ANIM_170 - anim_data_pointer AnimData171 ; SPRITE_ANIM_171 - anim_data_pointer AnimData172 ; SPRITE_ANIM_172 - anim_data_pointer AnimData173 ; SPRITE_ANIM_173 - anim_data_pointer AnimData174 ; SPRITE_ANIM_174 - anim_data_pointer AnimData175 ; SPRITE_ANIM_175 - anim_data_pointer AnimData176 ; SPRITE_ANIM_176 - anim_data_pointer AnimData177 ; SPRITE_ANIM_177 - anim_data_pointer AnimData178 ; SPRITE_ANIM_178 - anim_data_pointer AnimData179 ; SPRITE_ANIM_179 - anim_data_pointer AnimData180 ; SPRITE_ANIM_180 - anim_data_pointer AnimData181 ; SPRITE_ANIM_181 - anim_data_pointer AnimData182 ; SPRITE_ANIM_182 - anim_data_pointer AnimData183 ; SPRITE_ANIM_183 - anim_data_pointer AnimData184 ; SPRITE_ANIM_184 - anim_data_pointer AnimData185 ; SPRITE_ANIM_185 - anim_data_pointer AnimData186 ; SPRITE_ANIM_186 - anim_data_pointer AnimData187 ; SPRITE_ANIM_187 - anim_data_pointer AnimData188 ; SPRITE_ANIM_188 - anim_data_pointer AnimData189 ; SPRITE_ANIM_189 - anim_data_pointer AnimData190 ; SPRITE_ANIM_190 - anim_data_pointer AnimData191 ; SPRITE_ANIM_191 - anim_data_pointer AnimData192 ; SPRITE_ANIM_192 - anim_data_pointer AnimData193 ; SPRITE_ANIM_193 - anim_data_pointer AnimData194 ; SPRITE_ANIM_194 - anim_data_pointer AnimData195 ; SPRITE_ANIM_195 - anim_data_pointer AnimData196 ; SPRITE_ANIM_196 - anim_data_pointer AnimData197 ; SPRITE_ANIM_197 - anim_data_pointer AnimData198 ; SPRITE_ANIM_198 - anim_data_pointer AnimData199 ; SPRITE_ANIM_199 - anim_data_pointer AnimData200 ; SPRITE_ANIM_200 - anim_data_pointer AnimData201 ; SPRITE_ANIM_201 - anim_data_pointer AnimData202 ; SPRITE_ANIM_202 - anim_data_pointer AnimData203 ; SPRITE_ANIM_203 - anim_data_pointer AnimData204 ; SPRITE_ANIM_204 - anim_data_pointer AnimData205 ; SPRITE_ANIM_205 - anim_data_pointer AnimData206 ; SPRITE_ANIM_206 - anim_data_pointer AnimData207 ; SPRITE_ANIM_207 - anim_data_pointer AnimData208 ; SPRITE_ANIM_208 - anim_data_pointer AnimData209 ; SPRITE_ANIM_209 - anim_data_pointer AnimData210 ; SPRITE_ANIM_210 - anim_data_pointer AnimData211 ; SPRITE_ANIM_211 - anim_data_pointer AnimData212 ; SPRITE_ANIM_212 - anim_data_pointer AnimData213 ; SPRITE_ANIM_213 - anim_data_pointer AnimData214 ; SPRITE_ANIM_214 - anim_data_pointer AnimData215 ; SPRITE_ANIM_215 - anim_data_pointer AnimData216 ; SPRITE_ANIM_216 +; disables all sprite animations +; and clears memory related to sprites +Func_1296e: + push af + ld a, [wd5d7] + or a + jr z, .continue + pop af + ret +.continue + pop af + push bc + push hl + xor a + ld [wWhichSprite], a + call GetFirstSpriteAnimBufferProperty + lb bc, 0, SPRITE_ANIM_LENGTH + +; disable all sprite animations +.loop_sprites + xor a + ld [hl], a ; set SPRITE_ANIM_ENABLED to 0 + add hl, bc + ld a, [wWhichSprite] + inc a + ld [wWhichSprite], a + cp SPRITE_ANIM_BUFFER_CAPACITY + jr nz, .loop_sprites + + call ClearSpriteVRAMBuffer + call ZeroObjectPositions + ld hl, wVBlankOAMCopyToggle + inc [hl] + pop hl + pop bc + ret + +; creates a new entry in SpriteAnimBuffer, else loads the sprite if need be +CreateSpriteAndAnimBufferEntry: + push af + ld a, [wd5d7] + or a + jr z, .continue + pop af + ret +.continue + pop af + push bc + push hl + call Func_12c05 + ld [wCurrSpriteTileID], a + xor a + ld [wWhichSprite], a + call GetFirstSpriteAnimBufferProperty + ld bc, SPRITE_ANIM_LENGTH +.findFirstEmptyAnimField + ld a, [hl] + or a + jr z, .foundEmptyAnimField + add hl, bc + ld a, [wWhichSprite] + inc a + ld [wWhichSprite], a + cp $10 + jr nz, .findFirstEmptyAnimField + debug_nop + scf + jr .quit +.foundEmptyAnimField + ld a, $1 + ld [hl], a + call FillNewSpriteAnimBufferEntry + or a +.quit + pop hl + pop bc + ret + +FillNewSpriteAnimBufferEntry: + push hl + push bc + push hl + inc hl + ld c, SPRITE_ANIM_LENGTH - 1 + xor a +.clearSpriteAnimBufferEntryLoop + ld [hli], a + dec c + jr nz, .clearSpriteAnimBufferEntryLoop + pop hl + ld bc, SPRITE_ANIM_ID - 1 + add hl, bc + ld a, [wCurrSpriteTileID] + ld [hli], a + ld a, $ff + ld [hl], a + ld bc, SPRITE_ANIM_COUNTER - SPRITE_ANIM_ID + add hl, bc + ld a, $ff + ld [hl], a + pop bc + pop hl + ret + +DisableCurSpriteAnim: + ld a, [wWhichSprite] + ; fallthrough + +; sets SPRITE_ANIM_ENABLED to false +; of sprite in register a +DisableSpriteAnim: + push af + ld a, [wd5d7] + or a + jr z, .disable + pop af + ret +.disable + pop af + push hl + push bc + ld c, SPRITE_ANIM_ENABLED + call GetSpriteAnimBufferProperty_SpriteInA + ld [hl], FALSE + pop bc + pop hl + ret + +GetSpriteAnimCounter: + ld a, [wWhichSprite] + push hl + push bc + ld c, SPRITE_ANIM_COUNTER + call GetSpriteAnimBufferProperty_SpriteInA + ld a, [hl] + pop bc + pop hl + ret + +_HandleAllSpriteAnimations: + push af + ld a, [wd5d7] ; skip animating this frame if enabled + or a + jr z, .continue + pop af + ret +.continue + pop af + push af + push bc + push de + push hl + call ZeroObjectPositions + xor a + ld [wWhichSprite], a + call GetFirstSpriteAnimBufferProperty +.spriteLoop + ld a, [hl] + or a + jr z, .nextSprite ; skip if SPRITE_ANIM_ENABLED is 0 + call TryHandleSpriteAnimationFrame + call LoadSpriteDataForAnimationFrame +.nextSprite + ld bc, SPRITE_ANIM_LENGTH + add hl, bc + ld a, [wWhichSprite] + inc a + ld [wWhichSprite], a + cp SPRITE_ANIM_BUFFER_CAPACITY + jr nz, .spriteLoop + ld hl, wVBlankOAMCopyToggle + inc [hl] + pop hl + pop de + pop bc + pop af + ret + +LoadSpriteDataForAnimationFrame: + push hl + push bc + inc hl + ld a, [hli] + ld [wCurrSpriteAttributes], a + ld a, [hli] + ld [wCurrSpriteXPos], a + ld a, [hli] + ld [wCurrSpriteYPos], a + ld a, [hl] + ld [wCurrSpriteTileID], a + ld bc, SPRITE_ANIM_FLAGS - SPRITE_ANIM_TILE_ID + add hl, bc + ld a, [hl] + and 1 << SPRITE_ANIM_FLAG_UNSKIPPABLE + jr nz, .quit + ld bc, SPRITE_ANIM_FRAME_BANK - SPRITE_ANIM_FLAGS + add hl, bc + ld a, [hli] + ld [wd5d6], a + or a + jr z, .quit + ld a, [hli] + ld h, [hl] + ld l, a + call DrawSpriteAnimationFrame +.quit + pop bc + pop hl + ret + +; decrements the given sprite's movement counter (2x if SPRITE_ANIM_FLAG_SPEED is set) +; moves to the next animation frame if necessary +TryHandleSpriteAnimationFrame: + push hl + push bc + push de + push hl + ld d, 1 + ld bc, SPRITE_ANIM_FLAGS + add hl, bc + bit SPRITE_ANIM_FLAG_SPEED, [hl] + jr z, .skipSpeedIncrease + inc d +.skipSpeedIncrease + pop hl + ld bc, SPRITE_ANIM_COUNTER + add hl, bc + ld a, [hl] + cp $ff + jr z, .exit + sub d + ld [hl], a + jr z, .doNextAnimationFrame + jr nc, .exit +.doNextAnimationFrame + ld bc, SPRITE_ANIM_ENABLED - SPRITE_ANIM_COUNTER + add hl, bc + call HandleAnimationFrame +.exit + pop de + pop bc + pop hl + ret + +StartNewSpriteAnimation: + push hl + push af + ld c, SPRITE_ANIM_ID + call GetSpriteAnimBufferProperty + pop af + cp [hl] + pop hl + ret z + ; fallthrough + +StartSpriteAnimation: + push hl + call LoadSpriteAnimPointers + call HandleAnimationFrame + pop hl + ret + +; a = sprite animation +; c = animation counter value +Func_12ac9: + push bc + ld b, a + ld a, c + or a + ld a, b + pop bc + jr z, StartSpriteAnimation + + push hl + push bc + call LoadSpriteAnimPointers + ld a, $ff + call GetAnimFramePointerFromOffset + pop bc + ld a, c + call SetAnimationCounterAndLoop + pop hl + ret + +; Given an animation ID, fills the current sprite's Animation Pointer and Frame Offset Pointer +; a - Animation ID for current sprite +LoadSpriteAnimPointers: + push bc + push af + call GetFirstSpriteAnimBufferProperty + pop af + push hl + ld bc, SPRITE_ANIM_ID + add hl, bc + ld [hli], a + push hl + ld l, 6 ; SpriteAnimations + farcall GetMapDataPointer + farcall LoadGraphicsPointerFromHL + pop hl ; hl is animation bank + ld a, [wTempPointerBank] + ld [hli], a + ld a, [wTempPointer + 0] + ld [hli], a + ld c, a + ld a, [wTempPointer + 1] + ld [hli], a + ld b, a + ; offset pointer = pointer + $3 + ld a, $3 + add c + ld [hli], a + ld a, $0 + adc b + ld [hli], a + pop hl + pop bc + ret + +; hl - beginning of current sprite_anim_buffer +; Handles a full animation frame using all values in animation structure +; (frame data offset, anim counter, X Mov, Y Mov) +HandleAnimationFrame: + push bc + push de + push hl +.tryHandlingFrame + push hl + ld bc, SPRITE_ANIM_BANK + add hl, bc + ld a, [hli] + ld [wTempPointerBank], a + + inc hl + inc hl + ld a, [hl] ; SPRITE_ANIM_FRAME_OFFSET_POINTER + ld [wTempPointer + 0], a + add SPRITE_FRAME_OFFSET_SIZE ; advance FRAME_OFFSET_POINTER by 1 frame, 4 bytes + ld [hli], a + ld a, [hl] + ld [wTempPointer + 1], a + adc 0 + ld [hl], a + + ld de, wLoadedPalData + ld bc, SPRITE_FRAME_OFFSET_SIZE + call CopyBankedDataToDE + pop hl ; beginning of current sprite_anim_buffer + ld de, wLoadedPalData + ld a, [de] + call GetAnimFramePointerFromOffset + inc de + ld a, [de] + call SetAnimationCounterAndLoop + jr c, .tryHandlingFrame + inc de + ld bc, SPRITE_ANIM_COORD_X + add hl, bc + push hl + ld bc, SPRITE_ANIM_FLAGS - SPRITE_ANIM_COORD_X + add hl, bc + ld b, [hl] + pop hl + ld a, [de] + bit SPRITE_ANIM_FLAG_X_SUBTRACT, b + jr z, .addXOffset + cpl + inc a +.addXOffset + add [hl] + ld [hli], a + inc de + ld a, [de] + bit SPRITE_ANIM_FLAG_Y_SUBTRACT, b + jr z, .addYOffset + cpl + inc a +.addYOffset + add [hl] + ld [hl], a + pop hl + pop de + pop bc + ret + +; Calls GetAnimationFramePointer after setting up wTempPointerBank +; and wVRAMTileOffset +; a - frame offset from Animation Data +; hl - beginning of Sprite Anim Buffer +GetAnimFramePointerFromOffset: + ld [wVRAMTileOffset], a + push hl + push bc + push de + push hl + ld bc, SPRITE_ANIM_BANK + add hl, bc + ld a, [hli] + ld [wTempPointerBank], a + ld a, [hli] + ld [wTempPointer + 0], a + ld a, [hli] + ld [wTempPointer + 1], a + pop hl + call GetAnimationFramePointer ; calls with the original map data script pointer/bank + pop de + pop bc + pop hl + ret + +; Sets the animation counter for the current sprite. If the value is zero, loop the animation +; a - new animation counter +SetAnimationCounterAndLoop: + push hl + push bc + ld bc, SPRITE_ANIM_COUNTER + add hl, bc + ld [hl], a + or a + jr nz, .exit + ld bc, SPRITE_ANIM_POINTER - SPRITE_ANIM_COUNTER + add hl, bc + ld a, [hli] + add $3 ; skip base bank/pointer at beginning of data structure + ld c, a + ld a, [hli] + adc 0 + ld b, a + ld a, c + ld [hli], a + ld a, b + ld [hl], a + scf +.exit + pop bc + pop hl + ret + +Func_12ba7: + push hl + push bc + push de + call EnableSRAM + ld hl, wSpriteAnimBuffer + ld de, sGeneralSaveDataEnd + ld bc, $100 + call CopyDataHLtoDE + ld hl, wSpriteVRAMBuffer + ld bc, $40 + call CopyDataHLtoDE + ld a, [wSpriteVRAMBufferSize] + ld [de], a + call DisableSRAM + pop de + pop bc + pop hl + ret + +Func_12bcd: + push hl + push bc + push de + call EnableSRAM + ld hl, sGeneralSaveDataEnd + ld de, wSpriteAnimBuffer + ld bc, $100 + call CopyDataHLtoDE + ld de, wSpriteVRAMBuffer + ld bc, $40 + call CopyDataHLtoDE + ld a, [hl] + ld [wSpriteVRAMBufferSize], a + call DisableSRAM + pop de + pop bc + pop hl + ret + +; clears wSpriteVRAMBufferSize and wSpriteVRAMBuffer +ClearSpriteVRAMBuffer: + push hl + push bc + xor a + ld [wSpriteVRAMBufferSize], a + ld c, $40 + ld hl, wSpriteVRAMBuffer +.asm_12bfe + ld [hli], a + dec c + jr nz, .asm_12bfe + pop bc + pop hl + ret + +; gets some value based on the sprite in a and wSpriteVRAMBuffer +; loads the sprites data if it doesn't already exist +Func_12c05: + push hl + push bc + push de + ld b, a + ld d, $0 + ld a, [wSpriteVRAMBufferSize] + ld c, a + ld hl, wSpriteVRAMBuffer + or a + jr z, .tryToAddSprite + +.findSpriteMatchLoop + inc hl + ld a, [hl] + cp b + jr z, .foundSpriteMatch + inc hl + ld a, [hli] + add [hl] ; add tile size to tile offset + ld d, a + inc hl + dec c + jr nz, .findSpriteMatchLoop + +.tryToAddSprite + ld a, [wSpriteVRAMBufferSize] + cp $10 + jr nc, .quitFail + inc a + ld [wSpriteVRAMBufferSize], a ; increase number of entries by 1 + inc hl + push hl + ld a, b + ld [hli], a ; store sprite index + call Func_12c4f + push af + ld a, d + ld [hli], a ; store tile offset + pop af + ld [hl], a ; store tile size + pop hl + +.foundSpriteMatch + dec hl + inc [hl] ; mark this entry as valid + inc hl + inc hl + ld a, [hli] + add [hl] + cp $81 + jr nc, .quitFail ; exceeds total tile size + ld a, d + or a + jr .quitSucceed + +.quitFail + debug_nop + xor a + scf +.quitSucceed + pop de + pop bc + pop hl + ret + +; input: +; a = sprite index within the data map +; d = tile offset in VRAM +; output: +; a = number of tiles in sprite +Func_12c4f: + push af + xor a + ld [wd4cb], a + ld a, d + ld [wVRAMTileOffset], a + pop af + farcall Func_8025b + ret + +Func_12c5e: + push hl + push bc + push de + ld c, $10 + ld de, $4 + ld hl, wSpriteVRAMBuffer +.asm_12c69 + ld a, [hl] + or a + jr z, .asm_12c77 + push hl + push de + inc hl + ld a, [hli] + ld d, [hl] + call Func_12c4f + pop de + pop hl +.asm_12c77 + add hl, de + dec c + jr nz, .asm_12c69 + pop de + pop bc + pop hl + ret |