diff options
Diffstat (limited to 'engine/yellow_intro.asm')
| -rwxr-xr-x | engine/yellow_intro.asm | 1081 |
1 files changed, 1081 insertions, 0 deletions
diff --git a/engine/yellow_intro.asm b/engine/yellow_intro.asm new file mode 100755 index 00000000..9c9e26b3 --- /dev/null +++ b/engine/yellow_intro.asm @@ -0,0 +1,1081 @@ +PlayIntroScene: + ld a, [rIE] + push af + xor a + ld [rIF], a + ld a, $f + ld [rIE], a + ld a, $8 + ld [rSTAT], a + call InitYellowIntroGFXAndMusic + call DelayFrame +.loop + ld a, [wYellowIntroCurrentScene] + bit 7, a + jr nz, .go_to_title_screen + call JoypadLowSensitivity + ld a, [hJoyPressed] + and A_BUTTON | B_BUTTON | START + jr nz, .go_to_title_screen + call Func_f98fc + ld a, $0 + ld [wCurrentAnimatedObjectOAMBufferOffset], a + call RunObjectAnimations + ld a, [wYellowIntroCurrentScene] + cp $7 + call z, Func_f98a2 + cp $b + call z, Func_f98cb + call DelayFrame + jr .loop + +.go_to_title_screen + call YellowIntro_BlankPalettes + xor a + ld [hLCDCPointer], a + call DelayFrame + xor a + ld [rIF], a + pop af + ld [rIE], a + ld a, $90 + ld [hWY], a + call ClearObjectAnimationBuffers + ld hl, wTileMap + ld bc, SCREEN_WIDTH * SCREEN_HEIGHT + xor a + call Bank3E_FillMemory + call YellowIntro_BlankOAMBuffer + ld a, $1 + ld [H_AUTOBGTRANSFERENABLED], a + call DelayFrame + call DelayFrame + call DelayFrame + xor a + ld [H_AUTOBGTRANSFERENABLED], a + ret + +Func_f98a2: + ld a, [wOAMBuffer + 8 * 4 + 3] + or $1 + ld [wOAMBuffer + 8 * 4 + 3], a + ld a, [wOAMBuffer + 14 * 4 + 3] + or $1 + ld [wOAMBuffer + 14 * 4 + 3], a + ld a, [wOAMBuffer + 16 * 4 + 3] + or $1 + ld [wOAMBuffer + 16 * 4 + 3], a + ld a, [wOAMBuffer + 18 * 4 + 3] + or $1 + ld [wOAMBuffer + 18 * 4 + 3], a + ld a, [wOAMBuffer + 19 * 4 + 3] + or $1 + ld [wOAMBuffer + 19 * 4 + 3], a + ret + +Func_f98cb: + ld a, [wOAMBuffer + 18 * 4 + 3] + or $1 + ld [wOAMBuffer + 18 * 4 + 3], a + ld a, [wOAMBuffer + 19 * 4 + 3] + or $1 + ld [wOAMBuffer + 19 * 4 + 3], a + ld a, [wOAMBuffer + 20 * 4 + 3] + or $1 + ld [wOAMBuffer + 20 * 4 + 3], a + ld a, [wOAMBuffer + 25 * 4 + 3] + or $1 + ld [wOAMBuffer + 25 * 4 + 3], a + ld a, [wOAMBuffer + 26 * 4 + 3] + or $1 + ld [wOAMBuffer + 26 * 4 + 3], a + ld a, [wOAMBuffer + 28 * 4 + 3] + or $1 + ld [wOAMBuffer + 28 * 4 + 3], a + ret + +Func_f98fc: + ld a, [wYellowIntroCurrentScene] + ld hl, Jumptable_f9906 + call Func_fa06e + jp hl + +Jumptable_f9906: + dw YellowIntroScene0 ; running pika 1 + dw YellowIntroScene1 ; wait last + dw YellowIntroScene2 ; pikachu kick + dw YellowIntroScene3 ; wait last + dw YellowIntroScene4 ; running pika 2 + dw YellowIntroScene5 ; wait last + dw YellowIntroScene6 ; surfing pika + dw YellowIntroScene7 ; wait last + dw YellowIntroScene8 ; running pika 3 + dw YellowIntroScene9 ; wait last + dw YellowIntroScene10 ; flying pika + dw YellowIntroScene11 ; wait last + dw YellowIntroScene12 ; pika close up + dw YellowIntroScene13 ; wait last + dw YellowIntroScene14 ; pika thunderbolt + dw YellowIntroScene15 ; wait last + dw YellowIntroScene16 ; fade to white + dw YellowIntroScene17 ; wait and quit + +YellowIntro_NextScene: + ld hl, wYellowIntroCurrentScene + inc [hl] + ret + +YellowIntroScene0: + xor a + ld [hLCDCPointer], a + lb de, $58, $58 + ld a, $1 + call YellowIntro_SpawnAnimatedObjectAndSavePointer + xor a + ld [hSCX], a + ld [hSCY], a + ld a, $90 + ld [hWY], a + ld a, $e4 + ld [rBGP], a + ld [rOBP0], a + ld a, $c4 + ld [rOBP1], a + call UpdateGBCPal_BGP + call UpdateGBCPal_OBP0 + call UpdateGBCPal_OBP1 + ld a, 130 + ld [wYellowIntroSceneTimer], a + call YellowIntro_NextScene + ret + +YellowIntroScene1: + call YellowIntro_CheckFrameTimerDecrement + ret nc + call YellowIntro_MaskCurrentAnimatedObjectStruct + call YellowIntro_NextScene + ret + +YellowIntroScene2: + call YellowIntro_BlankPalsDelay2AndDisableLCD + ld c, $8 + call UpdateMusicCTimes + xor a + ld [hLCDCPointer], a + ld hl, vBGMap0 + ld bc, $400 + xor a + call Bank3E_FillMemory + call YellowIntroScene2_PlaceGraphic + lb de, $58, $b8 ; overloaded + ld a, $4 ; overloaded + call LoadYellowIntroFlyingSpeedBars + ld a, $1 + call Func_f9e9a + call YellowIntro_SetTimerFor128Frames + call YellowIntro_NextScene + ret + +YellowIntroScene2_PlaceGraphic: + ld hl, $98d4 ; (20, 6) + ld de, $20 + ld b, $6 + ld a, $90 +.row + ld c, $6 + push af + push hl +.col + ld [hli], a + inc a + dec c + jr nz, .col + pop hl + add hl, de + pop af + add $10 + dec b + jr nz, .row + ld a, [hGBC] + and a + jr z, .dmg_sgb + ; We can actually set palettes! + ld hl, $98d4 ; (20, 6) + ld de, $20 + ld b, $6 + ld a, $1 + ld [rVBK], a +.attr_row + ld c, $6 + push hl +.attr_col + ld [hli], a + dec c + jr nz, .attr_col + pop hl + add hl, de + dec b + jr nz, .attr_row + xor a + ld [rVBK], a +.dmg_sgb + ret + +LoadYellowIntroFlyingSpeedBars: + ld hl, YellowIntroFlyingSpeedBarData + ld a, $8 +.loop +; Spawn object $8 at indicated coordinates with indicated speeds + push af + ld e, [hl] + inc hl + ld d, [hl] + inc hl + ld a, [hli] + push hl + push af + ld a, $8 + call SpawnAnimatedObject + pop af + ld hl, $b + add hl, bc + ld [hl], a + pop hl + pop af + dec a + jr nz, .loop + ret + +YellowIntroFlyingSpeedBarData: + ; y, x, speed + db $d0, $20, $02 + db $f0, $30, $04 + db $d0, $40, $06 + db $c0, $50, $08 + db $e0, $60, $08 + db $c0, $70, $06 + db $e0, $80, $04 + db $f0, $90, $02 + +YellowIntroScene3: + call YellowIntro_CheckFrameTimerDecrement + jr c, .expired + ld a, [hSCX] + cp $68 + ret z + add $4 + ld [hSCX], a + ret + +.expired + call MaskAllAnimatedObjectStructs + call YellowIntro_NextScene + ret + +YellowIntroScene4: + call YellowIntro_BlankPalsDelay2AndDisableLCD + ld c, $5 + call UpdateMusicCTimes + ld a, [hGBC] + and a + jr z, .dmg_sgb + ; We can actually set palettes! + ld hl, $98d4 + ld de, $20 + ld b, $6 + ld a, $1 + ld [rVBK], a + xor a +.attr_row + ld c, $6 + push hl +.attr_col + ld [hli], a + dec c + jr nz, .attr_col + pop hl + add hl, de + dec b + jr nz, .attr_row + xor a + ld [rVBK], a +.dmg_sgb + xor a + ld [hLCDCPointer], a + call Func_f9e5f + lb de, $58, $58 + ld a, $2 + call YellowIntro_SpawnAnimatedObjectAndSavePointer + xor a + call Func_f9e9a + call YellowIntro_SetTimerFor128Frames + call YellowIntro_NextScene + ret + +YellowIntroScene5: + call YellowIntro_CheckFrameTimerDecrement + ret nc + call YellowIntro_MaskCurrentAnimatedObjectStruct + call YellowIntro_NextScene + ret + +YellowIntroScene6: + call YellowIntro_BlankPalsDelay2AndDisableLCD + ld c, $5 + call UpdateMusicCTimes + ld a, rSCY - $ff00 + ld [hLCDCPointer], a + call YellowIntro_Copy8BitSineWave + ld hl, vBGMap0 + ld bc, $60 + xor a + call Bank3E_FillMemory + ld hl, $9860 + ld c, $10 + ld a, $20 +.asm_f9a8b + ld [hli], a + inc a + ld [hli], a + dec a + dec c + jr nz, .asm_f9a8b + ld hl, $9880 + ld bc, $300 + ld a, $10 + call Bank3E_FillMemory + lb de, $40, $f8 + ld a, $5 + call YellowIntro_SpawnAnimatedObjectAndSavePointer + ld a, $1 + call Func_f9e9a + call YellowIntro_SetTimerFor88Frames + call YellowIntro_NextScene + ret + +YellowIntroScene7: + call YellowIntro_CheckFrameTimerDecrement + jr c, .expired + ld hl, hSCX + inc [hl] + inc [hl] + ld hl, wLYOverridesBuffer + ld de, wLYOverridesBuffer + 1 + ld a, [hl] + push af + ld c, $ff +.shift_loop + ld a, [de] + inc de + ld [hli], a + dec c + jr nz, .shift_loop + pop af + ld [hl], a + call Request7TileTransferFromC810ToC710 + ret + +.expired + call YellowIntro_MaskCurrentAnimatedObjectStruct + call YellowIntro_NextScene + ret + +YellowIntroScene8: + call YellowIntro_BlankPalsDelay2AndDisableLCD + ld c, $5 + call UpdateMusicCTimes + xor a + ld [hLCDCPointer], a + call Func_f9e5f + lb de, $58, $58 + ld a, $3 + call YellowIntro_SpawnAnimatedObjectAndSavePointer + xor a + call Func_f9e9a + call YellowIntro_SetTimerFor128Frames + call YellowIntro_NextScene + ret + +YellowIntroScene9: + call YellowIntro_CheckFrameTimerDecrement + ret nc + call YellowIntro_MaskCurrentAnimatedObjectStruct + call YellowIntro_NextScene + ret + +YellowIntroScene10: + call YellowIntro_BlankPalsDelay2AndDisableLCD + ld c, $5 + call UpdateMusicCTimes + xor a + ld [hLCDCPointer], a + ld hl, vBGMap0 + ld bc, $400 + xor a + call Bank3E_FillMemory + ld hl, vBGMap0 + ld bc, $100 + ld a, $2 + call Bank3E_FillMemory + ld hl, $9900 + ld de, Unkn_f9b6e + lb bc, 6, 20 + call .FillBGMapBox + ld hl, $988c + ld de, Unkn_f9be6 + lb bc, 3, 4 + call .FillBGMapBox + ld hl, $98e3 + ld de, Unkn_f9bf2 + lb bc, 2, 2 + call .FillBGMapBox + lb de, $98, $58 + ld a, $6 + call YellowIntro_SpawnAnimatedObjectAndSavePointer + ld a, $1 + call Func_f9e9a + call YellowIntro_SetTimerFor128Frames + call YellowIntro_NextScene + ret + +.FillBGMapBox: +.fill_row + push bc + push hl +.fill_col + ld a, [de] + inc de + ld [hli], a + dec c + jr nz, .fill_col + pop hl + ld bc, $20 + add hl, bc + pop bc + dec b + jr nz, .fill_row + ret + +Unkn_f9b6e: INCBIN "gfx/unknown_f9b6e.map" +Unkn_f9be6: INCBIN "gfx/unknown_f9be6.map" +Unkn_f9bf2: INCBIN "gfx/unknown_f9bf2.map" + +YellowIntroScene11: + call YellowIntro_CheckFrameTimerDecrement + jr c, .expired + ld a, [wYellowIntroSceneTimer] + and $7 + ret nz + ld a, [wYellowIntroSceneTimer] + and $8 + sla a + sla a + sla a + ld e, a + ld d, $0 + ld hl, YellowIntroCloudGFX1 + add hl, de + ld a, l + ld [H_VBCOPYSRC], a + ld a, h + ld [H_VBCOPYSRC + 1], a + xor a + ld [H_VBCOPYDEST], a + ld a, $96 + ld [H_VBCOPYDEST + 1], a + ld a, $4 + ld [H_VBCOPYSIZE], a + ret + +.expired + call YellowIntro_MaskCurrentAnimatedObjectStruct + call YellowIntro_NextScene + ret + +YellowIntroCloudGFX1: INCBIN "gfx/unknown_f9c2c.2bpp" +YellowIntroCloudGFX2: INCBIN "gfx/unknown_f9c6c.2bpp" ; indirectly referenced + +YellowIntroScene12: + call YellowIntro_BlankPalsDelay2AndDisableLCD + ld c, $5 + call UpdateMusicCTimes + xor a + ld [hLCDCPointer], a + ld hl, vBGMap0 + ld bc, $80 + ld a, $1 + call Bank3E_FillMemory + ld hl, $9880 + ld bc, $140 + xor a + call Bank3E_FillMemory + ld hl, $99c0 + ld bc, $80 + ld a, $1 + call Bank3E_FillMemory + + ; paste 8x12 graphic into vBGMap0 at (5, 6) starting at tile 4, skipping 4 vtiles at the end of each row + ld hl, $98c5 + ld de, $20 + ld a, $4 + ld b, 8 +.row + ld c, 12 + push hl +.col + ld [hli], a + inc a + dec c + jr nz, .col + pop hl + add hl, de + add $4 + dec b + jr nz, .row + + ld hl, $98c4 ; (4, 6) + ld [hl], $3 + ld hl, $98e4 ; (4, 7) + ld [hl], $74 + ld hl, $99a5 ; (5, 5) + ld [hl], $0 + lb de, $60, $58 + ld a, $9 + call YellowIntro_SpawnAnimatedObjectAndSavePointer + xor a + call Func_f9e9a + call YellowIntro_SetTimerFor128Frames + call YellowIntro_NextScene + ret + +YellowIntroScene13: + call YellowIntro_CheckFrameTimerDecrement + ret nc + lb de, $68, $58 + ld a, $a + call SpawnAnimatedObject + call YellowIntro_NextScene + ret + +YellowIntroScene14: + ld de, YellowIntroPalSequence_f9dd6 + call YellowIntro_LoadDMGPalAndIncrementCounter + jr c, .expired + ld [rBGP], a + ld [rOBP0], a + and $f0 + ld [rOBP1], a + call UpdateGBCPal_BGP + call UpdateGBCPal_OBP0 + call UpdateGBCPal_OBP1 + ret + +.expired + call MaskAllAnimatedObjectStructs + call YellowIntro_BlankOAMBuffer + ld hl, wTileMap + ld bc, $50 + ld a, $1 + call Bank3E_FillMemory + coord hl, 0, 4 + ld bc, CopyVideoDataAlternate + xor a + call Bank3E_FillMemory + coord hl, 0, 14 + ld bc, $50 + ld a, $1 + call Bank3E_FillMemory + ld a, $1 + ld [H_AUTOBGTRANSFERENABLED], a + call DelayFrame + call DelayFrame + call DelayFrame + xor a + ld [H_AUTOBGTRANSFERENABLED], a + ld a, $e4 + ld [rOBP0], a + ld [rBGP], a + call UpdateGBCPal_BGP + call UpdateGBCPal_OBP0 + lb de, $58, $58 + ld a, $7 + call YellowIntro_SpawnAnimatedObjectAndSavePointer + call YellowIntro_NextScene + ld a, $28 + ld [wYellowIntroSceneTimer], a + ret + +YellowIntroScene15: + call YellowIntro_CheckFrameTimerDecrement + jr c, .expired + ld a, [wYellowIntroSceneTimer] + and $3 + ret nz + ld a, [rOBP0] + xor $ff + ld [rOBP0], a + ld a, [rBGP] + xor $3 + ld [rBGP], a + call UpdateGBCPal_BGP + call UpdateGBCPal_OBP0 + ret + +.expired + xor a + ld [hLCDCPointer], a + ld a, $e4 + ld [rBGP], a + ld [rOBP0], a + call UpdateGBCPal_BGP + call UpdateGBCPal_OBP0 + call YellowIntro_NextScene +YellowIntroScene16: + ld de, YellowIntroPalSequence_f9e0a + call YellowIntro_LoadDMGPalAndIncrementCounter + jr c, .expired + ld [rOBP0], a + ld [rBGP], a + call UpdateGBCPal_BGP + call UpdateGBCPal_OBP0 + ret + +.expired + call YellowIntro_NextScene + ret + +YellowIntroPalSequence_f9dd6: + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $e4 + db $e4, $c0, $c0, $ff + +YellowIntroPalSequence_f9e0a: + db $e4, $90, $90, $40 + db $40, $00, $00, $ff + +YellowIntroScene17: + ld c, 64 + call DelayFrames + ld hl, wYellowIntroCurrentScene + set 7, [hl] + ret + +YellowIntro_SpawnAnimatedObjectAndSavePointer: + call SpawnAnimatedObject + ld a, c + ld [wYellowIntroAnimatedObjectStructPointer], a + ld a, b + ld [wYellowIntroAnimatedObjectStructPointer + 1], a + ret + +YellowIntro_MaskCurrentAnimatedObjectStruct: + ld a, [wYellowIntroAnimatedObjectStructPointer] + ld c, a + ld a, [wYellowIntroAnimatedObjectStructPointer + 1] + ld b, a + call MaskCurrentAnimatedObjectStruct + ret + +YellowIntro_SetTimerFor128Frames: + ld a, 128 + ld [wYellowIntroSceneTimer], a + ret + +YellowIntro_SetTimerFor88Frames: + ld a, 88 + ld [wYellowIntroSceneTimer], a + ret + +YellowIntro_CheckFrameTimerDecrement: + ld hl, wYellowIntroSceneTimer + ld a, [hl] + and a + jr z, .asm_f9e4b + dec [hl] + and a + ret + +.asm_f9e4b + scf + ret + +YellowIntro_LoadDMGPalAndIncrementCounter: + ld hl, wYellowIntroSceneTimer + ld a, [hl] + inc [hl] + ld l, a + ld h, $0 + add hl, de + ld a, [hl] + cp $ff + jr z, .asm_f9e5d + and a + ret + +.asm_f9e5d + scf + ret + +Func_f9e5f: + ld hl, vBGMap0 + ld bc, $80 + ld a, $1 + call Bank3E_FillMemory + ld hl, $9880 + ld bc, $140 + xor a + call Bank3E_FillMemory + ld hl, $99c0 + ld bc, $80 + ld a, $1 + call Bank3E_FillMemory + ret + +YellowIntro_BlankPalsDelay2AndDisableLCD: + xor a + ld [rBGP], a + ld [rOBP0], a + ld [rOBP1], a + call UpdateGBCPal_BGP + call UpdateGBCPal_OBP0 + call UpdateGBCPal_OBP1 + call DelayFrame + call DelayFrame + call DisableLCD + ret + +Func_f9e9a: + ld e, a + callab YellowIntroPaletteAction + xor a + ld [hSCX], a + ld [hSCY], a + ld a, $90 + ld [hWY], a + ld a, $e3 + ld [rLCDC], a + ld a, $e4 + ld [rBGP], a + ld [rOBP0], a + ld a, $e0 + ld [rOBP1], a + call UpdateGBCPal_BGP + call UpdateGBCPal_OBP0 + call UpdateGBCPal_OBP1 + ret + +YellowIntro_Copy8BitSineWave: + ; Copy this sine wave into wLYOverridesBuffer 8 times (end just before wc900) + ld de, wLYOverridesBuffer + ld a, $8 +.loop + push af + ld hl, .SineWave + ld bc, .SineWaveEnd - .SineWave + call Bank3E_CopyData + pop af + dec a + jr nz, .loop + ret + +.SineWave: +; a sine wave with amplitude 4 + db 0, 0, 1, 2, 2, 3, 3, 3 + db 4, 3, 3, 3, 2, 2, 1, 0 + db 0, 0, -1, -2, -2, -3, -3, -3 + db -4, -3, -3, -3, -2, -2, -1, 0 +.SineWaveEnd: + +Request7TileTransferFromC810ToC710: + ld a, $10 + ld [H_VBCOPYSRC], a + ld a, wLYOverridesBuffer / $100 + ld [H_VBCOPYSRC + 1], a + ld a, $10 + ld [H_VBCOPYDEST], a + ld a, wLYOverrides / $100 + ld [H_VBCOPYDEST + 1], a + ld a, $7 + ld [H_VBCOPYSIZE], a + ret + +InitYellowIntroGFXAndMusic: + xor a + ld [H_AUTOBGTRANSFERENABLED], a + ld [hSCX], a + ld [hSCY], a + ld [H_AUTOBGTRANSFERDEST], a + ld a, $98 + ld [H_AUTOBGTRANSFERDEST + 1], a + call YellowIntro_BlankTileMap + ld hl, wTileMap + ld bc, SCREEN_WIDTH * SCREEN_HEIGHT + ld a, $1 + call Bank3E_FillMemory + coord hl, 0, 4 + ld bc, CopyVideoDataAlternate + xor a + call Bank3E_FillMemory + ld a, $1 + ld [H_AUTOBGTRANSFERENABLED], a + call DelayFrame + call DelayFrame + call DelayFrame + xor a + ld [H_AUTOBGTRANSFERENABLED], a + ld de, $6b5a + ld hl, $8000 + ld bc, $3eff + call CopyVideoData + ld de, $635a + ld hl, $9000 + ld bc, $3e80 + call CopyVideoData + call ClearObjectAnimationBuffers + call LoadYellowIntroObjectAnimationDataPointers + ld b, $8 + call RunPaletteCommand + xor a + ld hl, wYellowIntroCurrentScene + ld [hli], a + ld [hli], a + ld [hli], a + ld [hl], a + ld a, MUSIC_YELLOW_INTRO + ld c, BANK(Music_YellowIntro) + call PlayMusic + ret + +LoadYellowIntroObjectAnimationDataPointers: + ld a, YellowIntro_AnimatedObjectSpawnStateData % $100 + ld [wAnimatedObjectSpawnStateDataPointer], a + ld a, YellowIntro_AnimatedObjectSpawnStateData / $100 + ld [wAnimatedObjectSpawnStateDataPointer + 1], a + ld a, YellowIntro_AnimatedObjectJumptable % $100 + ld [wAnimatedObjectJumptablePointer], a + ld a, YellowIntro_AnimatedObjectJumptable / $100 + ld [wAnimatedObjectJumptablePointer + 1], a + ld a, YellowIntro_AnimatedObjectOAMData % $100 + ld [wAnimatedObjectOAMDataPointer], a + ld a, YellowIntro_AnimatedObjectOAMData / $100 + ld [wAnimatedObjectOAMDataPointer + 1], a + ld a, YellowIntro_AnimatedObjectFramesData % $100 + ld [wAnimatedObjectFramesDataPointer], a + ld a, YellowIntro_AnimatedObjectFramesData / $100 + ld [wAnimatedObjectFramesDataPointer + 1], a + ret + +YellowIntro_BlankTileMap: + ld hl, wTileMap + ld bc, SCREEN_WIDTH * SCREEN_HEIGHT + ld a, $7f + call Bank3E_FillMemory + ret + +Bank3E_CopyData: +.loop + ld a, [hli] + ld [de], a + inc de + dec bc + ld a, c + or b + jr nz, .loop + ret + +Bank3E_FillMemory: + push de + ld e, a +.loop + ld a, e + ld [hli], a + dec bc + ld a, c + or b + jr nz, .loop + pop de + ret + +YellowIntro_BlankOAMBuffer: + ld hl, wOAMBuffer + ld bc, wOAMBufferEnd - wOAMBuffer + xor a + call Bank3E_FillMemory + ret + +YellowIntro_BlankPalettes: + xor a + ld [rBGP], a + ld [rOBP0], a + ld [rOBP1], a + call UpdateGBCPal_BGP + call UpdateGBCPal_OBP0 + call UpdateGBCPal_OBP1 + ret + +YellowIntro_AnimatedObjectSpawnStateData: + db $00, $00, $00 + db $01, $01, $00 + db $02, $01, $00 + db $03, $01, $00 + db $04, $02, $00 + db $05, $03, $00 + db $06, $04, $00 + db $07, $01, $00 + db $08, $05, $00 + db $09, $01, $00 + db $0a, $01, $00 + +YellowIntro_AnimatedObjectJumptable: + dw Func_fa007 + dw Func_fa007 + dw Func_fa008 + dw Func_fa014 + dw Func_fa02b + dw Func_fa062 + +Func_fa007: + ret + +Func_fa008: + ld hl, $4 + add hl, bc + ld a, [hl] + cp $58 + ret z + sub $4 + ld [hl], a + ret + +Func_fa014: + ld hl, $4 + add hl, bc + ld a, [hl] + cp $58 + jr z, .asm_fa020 + add $4 + ld [hl], a +.asm_fa020 + ld hl, $5 + add hl, bc + cp $58 + ret z + add $1 + ld [hl], a + ret + +Func_fa02b: + ld hl, $b + add hl, bc + ld e, [hl] + ld d, $0 + ld hl, Jumptable_fa03b + add hl, de + add hl, de + ld a, [hli] + ld h, [hl] + ld l, a + jp hl + +Jumptable_fa03b: + dw Func_fa03f + dw Func_fa051 + +Func_fa03f: + ld hl, $5 + add hl, bc + ld a, [hl] + cp $58 + jr z, .asm_fa04c + sub $2 + ld [hl], a + ret + +.asm_fa04c + ld hl, $b + add hl, bc + inc [hl] +Func_fa051: + ld hl, $c + add hl, bc + ld a, [hl] + inc [hl] + ld d, $8 + call Func_fa079 + ld hl, $7 + add hl, bc + ld [hl], a + ret + +Func_fa062: + ld hl, $b + add hl, bc + ld a, [hl] + ld hl, $4 + add hl, bc + add [hl] + ld [hl], a + ret + +Func_fa06e: + ld e, a + ld d, $0 + add hl, de + add hl, de + ld a, [hli] + ld h, [hl] + ld l, a + ret + +Func_fa077: ; cosine + add $10 +Func_fa079: + and $3f + cp $20 + jr nc, .asm_fa084 + call Func_fa08e + ld a, h + ret + +.asm_fa084 + and $1f + call Func_fa08e + ld a, h + xor $ff + inc a + ret + +Func_fa08e: + ld e, a + ld a, d + ld d, $0 + ld hl, Unkn_fa0aa + add hl, de + add hl, de + ld e, [hl] + inc hl + ld d, [hl] + ld hl, $0 +.asm_fa09d + srl a + jr nc, .asm_fa0a2 + add hl, de +.asm_fa0a2 + sla e + rl d + and a + jr nz, .asm_fa09d + ret + +Unkn_fa0aa: + sine_wave $100 |