ref: e0b783bb7b9b73ff48b079a50156e0efdbf08be3
dir: /engine/events/celebi.asm/
SPECIALCELEBIEVENT_CELEBI EQU $84 UnusedForestTreeFrames: INCBIN "gfx/tilesets/forest-tree/1.2bpp" INCBIN "gfx/tilesets/forest-tree/2.2bpp" INCBIN "gfx/tilesets/forest-tree/3.2bpp" INCBIN "gfx/tilesets/forest-tree/4.2bpp" CelebiShrineEvent: call DelayFrame ld a, [wVramState] push af xor a ld [wVramState], a call LoadCelebiGFX depixel 0, 10, 7, 0 ld a, SPRITE_ANIM_INDEX_CELEBI call InitSpriteAnimStruct ld hl, SPRITEANIMSTRUCT_TILE_ID add hl, bc ld [hl], SPECIALCELEBIEVENT_CELEBI ld hl, SPRITEANIMSTRUCT_ANIM_SEQ_ID add hl, bc ld [hl], SPRITE_ANIM_SEQ_CELEBI ld hl, SPRITEANIMSTRUCT_0F add hl, bc ld a, $80 ld [hl], a ld a, 160 ; frame count ld [wFrameCounter], a ld d, $0 .loop ld a, [wJumptableIndex] bit 7, a jr nz, .done push bc call GetCelebiSpriteTile inc d push de ld a, 36 * SPRITEOAMSTRUCT_LENGTH ld [wCurSpriteOAMAddr], a farcall DoNextFrameForAllSprites call CelebiEvent_CountDown ld c, 2 call DelayFrames pop de pop bc jr .loop .done pop af ld [wVramState], a call .RestorePlayerSprite_DespawnLeaves call CelebiEvent_SetBattleType ret .RestorePlayerSprite_DespawnLeaves: ld hl, wVirtualOAMSprite00TileID xor a ld c, 4 .OAMloop: ld [hli], a ; tile id rept SPRITEOAMSTRUCT_LENGTH - 1 inc hl endr inc a dec c jr nz, .OAMloop ld hl, wVirtualOAMSprite04 ld bc, wVirtualOAMEnd - wVirtualOAMSprite04 xor a call ByteFill ret LoadCelebiGFX: farcall ClearSpriteAnims ld de, SpecialCelebiLeafGFX ld hl, vTiles1 lb bc, BANK(SpecialCelebiLeafGFX), 4 call Request2bpp ld de, SpecialCelebiGFX ld hl, vTiles0 tile SPECIALCELEBIEVENT_CELEBI lb bc, BANK(SpecialCelebiGFX), 4 * 4 call Request2bpp xor a ld [wJumptableIndex], a ret CelebiEvent_CountDown: ld hl, wFrameCounter ld a, [hl] and a jr z, .done dec [hl] ret .done ld hl, wJumptableIndex set 7, [hl] ret CelebiEvent_SpawnLeaf: ; unused ld hl, wcf65 ld a, [hl] inc [hl] and $7 ret nz ld a, [hl] and $18 sla a add $40 ld d, a ld e, $0 ld a, SPRITE_ANIM_INDEX_FLY_LEAF ; fly land call InitSpriteAnimStruct ld hl, SPRITEANIMSTRUCT_TILE_ID add hl, bc ld [hl], $80 ret SpecialCelebiLeafGFX: INCBIN "gfx/overworld/cut_grass.2bpp" SpecialCelebiGFX: INCBIN "gfx/overworld/celebi.2bpp" UpdateCelebiPosition: ld hl, SPRITEANIMSTRUCT_XOFFSET add hl, bc ld a, [hl] push af ld hl, SPRITEANIMSTRUCT_YCOORD add hl, bc ld a, [hl] cp 8 * 10 + 2 jp nc, .FreezeCelebiPosition ld hl, SPRITEANIMSTRUCT_YCOORD add hl, bc inc [hl] ld hl, SPRITEANIMSTRUCT_0F add hl, bc ld a, [hl] ld d, a cp $3a jr c, .skip jr z, .skip sub $3 ld [hl], a .skip ld hl, SPRITEANIMSTRUCT_0E add hl, bc ld a, [hl] inc [hl] call CelebiEvent_Cosine ld hl, SPRITEANIMSTRUCT_XOFFSET add hl, bc ld [hl], a ld d, a ld hl, SPRITEANIMSTRUCT_XCOORD add hl, bc add [hl] cp 8 * 11 + 4 jr nc, .ShiftY cp 8 * 8 + 4 jr nc, .ReinitSpriteAnimFrame .ShiftY: pop af push af cp d jr nc, .moving_left ld hl, SPRITEANIMSTRUCT_XCOORD add hl, bc add [hl] cp 8 * 10 jr c, .float_up jr .float_down .moving_left ld hl, SPRITEANIMSTRUCT_XCOORD add hl, bc add [hl] cp 8 * 10 jr nc, .float_up .float_down ld hl, SPRITEANIMSTRUCT_YCOORD add hl, bc ld a, [hl] sub $2 ld [hl], a jr .ReinitSpriteAnimFrame .float_up ld hl, SPRITEANIMSTRUCT_YCOORD add hl, bc ld a, [hl] add $1 ld [hl], a .ReinitSpriteAnimFrame: pop af ld hl, SPRITEANIMSTRUCT_XCOORD add hl, bc add [hl] cp 8 * 10 jr c, .left cp -(8 * 3 + 2) jr nc, .left ld hl, SPRITEANIMSTRUCT_FRAMESET_ID add hl, bc ld a, SPRITE_ANIM_FRAMESET_CELEBI_RIGHT call ReinitSpriteAnimFrame jr .done .left ld hl, SPRITEANIMSTRUCT_FRAMESET_ID add hl, bc ld a, SPRITE_ANIM_FRAMESET_CELEBI_LEFT call ReinitSpriteAnimFrame .done ret .FreezeCelebiPosition: pop af ld hl, SPRITEANIMSTRUCT_FRAMESET_ID add hl, bc ld a, SPRITE_ANIM_FRAMESET_CELEBI_LEFT call ReinitSpriteAnimFrame ret CelebiEvent_Cosine: ; a = d * cos(a * pi/32) add %010000 ; cos(x) = sin(x + pi/2) calc_sine_wave GetCelebiSpriteTile: push hl push bc push de ld a, d ld d, $3 ld e, d cp $0 jr z, .Frame1 cp d jr z, .Frame2 call .AddE cp d jr z, .Frame3 call .AddE cp d jr z, .Frame4 call .AddE cp d jr c, .done jr .restart .Frame1: ld a, SPECIALCELEBIEVENT_CELEBI jr .load_tile .Frame2: ld a, SPECIALCELEBIEVENT_CELEBI + 4 jr .load_tile .Frame3: ld a, SPECIALCELEBIEVENT_CELEBI + 8 jr .load_tile .Frame4: ld a, SPECIALCELEBIEVENT_CELEBI + 12 .load_tile ld hl, SPRITEANIMSTRUCT_TILE_ID add hl, bc ld [hl], a jr .done .restart pop de ld d, $ff push de .done pop de pop bc pop hl ret .AddE: push af ld a, d add e ld d, a pop af ret CelebiEvent_SetBattleType: ld a, BATTLETYPE_CELEBI ld [wBattleType], a ret CheckCaughtCelebi: ld a, [wBattleResult] bit BATTLERESULT_CAUGHT_CELEBI, a jr z, .false ld a, TRUE ld [wScriptVar], a jr .done .false xor a ; FALSE ld [wScriptVar], a .done ret