ref: d8eed222b7cbe1a481289d19d17ca52713df4b36
parent: c1096d08f6620d83b382e5270af478301d40c7ef
author: yenatch <[email protected]>
date: Wed Dec 25 21:09:58 EST 2013
split out tileset animations
--- a/main.asm
+++ b/main.asm
@@ -80656,1033 +80656,7 @@
SECTION "bank3F", ROMX, BANK[$3F]
-_AnimateTileset: ; fc000
-; Iterate over a given pointer array of
-; animation functions (one per frame).
-
-; Typically in wra1, vra0
-
- ld a, [TilesetAnim]
- ld e, a
- ld a, [TilesetAnim + 1]
- ld d, a
-
- ld a, [hTileAnimFrame]
- ld l, a
- inc a
- ld [hTileAnimFrame], a
-
- ld h, 0
- add hl, hl
- add hl, hl
- add hl, de
-
-; 2-byte parameter
-; All functions take input de.
- ld e, [hl]
- inc hl
- ld d, [hl]
- inc hl
-
-; Function address
- ld a, [hli]
- ld h, [hl]
- ld l, a
-
- jp [hl]
-; fc01b
-
-
-Tileset00Anim: ; 0xfc01b
-Tileset02Anim: ; 0xfc01b
-Tileset03Anim: ; 0xfc01b
-; param, function
- dw $9140, AnimateWaterTile
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, TileAnimationPalette
- dw NULL, WaitTileAnimation
- dw NULL, AnimateFlowerTile
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, NextTileFrame8
- dw NULL, DoneTileAnimation
-; 0xfc047
-
-Tileset25Anim: ; 0xfc047
-; param, function
- dw $9140, AnimateWaterTile
- dw NULL, WaitTileAnimation
- dw $95f0, AnimateFountain
- dw NULL, WaitTileAnimation
- dw NULL, TileAnimationPalette
- dw NULL, WaitTileAnimation
- dw NULL, AnimateFlowerTile
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, NextTileFrame8
- dw NULL, DoneTileAnimation
-; 0xfc073
-
-Tileset31Anim: ; 0xfc073
-; param, function
- dw NULL, ForestTreeLeftAnimation
- dw NULL, ForestTreeRightAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, ForestTreeLeftAnimation2
- dw NULL, ForestTreeRightAnimation2
- dw NULL, AnimateFlowerTile
- dw $9140, AnimateWaterTile
- dw NULL, TileAnimationPalette
- dw NULL, NextTileFrame8
- dw NULL, DoneTileAnimation
-; 0xfc0a3
-
-Tileset01Anim: ; 0xfc0a3
-; param, function
- dw $9140, AnimateWaterTile
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, TileAnimationPalette
- dw NULL, WaitTileAnimation
- dw NULL, AnimateFlowerTile
- dw $4a98, AnimateWhirlpoolTile
- dw $4a9c, AnimateWhirlpoolTile
- dw $4aa0, AnimateWhirlpoolTile
- dw $4aa4, AnimateWhirlpoolTile
- dw NULL, WaitTileAnimation
- dw NULL, NextTileFrame8
- dw NULL, DoneTileAnimation
-; 0xfc0d7
-
-INCBIN "baserom.gbc",$fc0d7,$fc12f - $fc0d7
-
-Tileset09Anim: ; 0xfc12f
-; param, function
- dw $9140, AnimateWaterTile
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, TileAnimationPalette
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, NextTileFrame8
- dw NULL, DoneTileAnimation
-; 0xfc15f
-
-Tileset15Anim: ; 0xfc15f
-; param, function
- dw NULL, SafariFountainAnim2
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, SafariFountainAnim1
- dw NULL, WaitTileAnimation
- dw NULL, NextTileFrame8
- dw NULL, DoneTileAnimation
-; 0xfc17f
-
-INCBIN "baserom.gbc",$fc17f,$fc1e7 - $fc17f
-
-Tileset24Anim: ; 0xfc1e7
-Tileset30Anim: ; 0xfc1e7
-; param, function
- dw $9140, WriteTileToBuffer
- dw NULL, Functionfc71e
- dw $cf41, ScrollTileRightLeft
- dw NULL, Functionfc71e
- dw $9140, WriteTileFromBuffer
- dw NULL, Functionfc71e
- dw NULL, TileAnimationPalette
- dw NULL, Functionfc71e
- dw $9400, WriteTileToBuffer
- dw NULL, Functionfc71e
- dw $cf41, ScrollTileDown
- dw NULL, Functionfc71e
- dw $cf41, ScrollTileDown
- dw NULL, Functionfc71e
- dw $cf41, ScrollTileDown
- dw NULL, Functionfc71e
- dw $9400, WriteTileFromBuffer
- dw NULL, Functionfc71e
- dw NULL, DoneTileAnimation
-; 0xfc233
-
-Tileset29Anim: ; 0xfc233
-; param, function
- dw $9350, WriteTileToBuffer
- dw NULL, Functionfc71e
- dw $cf41, ScrollTileRightLeft
- dw NULL, Functionfc71e
- dw $9350, WriteTileFromBuffer
- dw NULL, Functionfc71e
- dw NULL, TileAnimationPalette
- dw NULL, Functionfc71e
- dw $9310, WriteTileToBuffer
- dw NULL, Functionfc71e
- dw $cf41, ScrollTileDown
- dw NULL, Functionfc71e
- dw $cf41, ScrollTileDown
- dw NULL, Functionfc71e
- dw $cf41, ScrollTileDown
- dw NULL, Functionfc71e
- dw $9310, WriteTileFromBuffer
- dw NULL, Functionfc71e
- dw NULL, DoneTileAnimation
-; 0xfc27f
-
-Tileset23Anim: ; 0xfc27f
-; param, function
- dw SproutPillarTilePointer9, AnimateSproutPillarTile
- dw SproutPillarTilePointer10, AnimateSproutPillarTile
- dw SproutPillarTilePointer7, AnimateSproutPillarTile
- dw SproutPillarTilePointer8, AnimateSproutPillarTile
- dw SproutPillarTilePointer5, AnimateSproutPillarTile
- dw SproutPillarTilePointer6, AnimateSproutPillarTile
- dw SproutPillarTilePointer3, AnimateSproutPillarTile
- dw SproutPillarTilePointer4, AnimateSproutPillarTile
- dw SproutPillarTilePointer1, AnimateSproutPillarTile
- dw SproutPillarTilePointer2, AnimateSproutPillarTile
- dw NULL, NextTileFrame
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, DoneTileAnimation
-; 0xfc2bf
-
-INCBIN "baserom.gbc",$fc2bf,$fc2e7 - $fc2bf
-
-Tileset04Anim: ; 0xfc2e7
-Tileset05Anim: ; 0xfc2e7
-Tileset06Anim: ; 0xfc2e7
-Tileset07Anim: ; 0xfc2e7
-Tileset08Anim: ; 0xfc2e7
-Tileset10Anim: ; 0xfc2e7
-Tileset11Anim: ; 0xfc2e7
-Tileset12Anim: ; 0xfc2e7
-Tileset13Anim: ; 0xfc2e7
-Tileset14Anim: ; 0xfc2e7
-Tileset16Anim: ; 0xfc2e7
-Tileset17Anim: ; 0xfc2e7
-Tileset18Anim: ; 0xfc2e7
-Tileset19Anim: ; 0xfc2e7
-Tileset20Anim: ; 0xfc2e7
-Tileset21Anim: ; 0xfc2e7
-Tileset22Anim: ; 0xfc2e7
-Tileset26Anim: ; 0xfc2e7
-Tileset27Anim: ; 0xfc2e7
-Tileset28Anim: ; 0xfc2e7
-Tileset32Anim: ; 0xfc2e7
-Tileset33Anim: ; 0xfc2e7
-Tileset34Anim: ; 0xfc2e7
-Tileset35Anim: ; 0xfc2e7
-Tileset36Anim: ; 0xfc2e7
-; param, function
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, WaitTileAnimation
- dw NULL, DoneTileAnimation
-; 0xfc2fb
-
-DoneTileAnimation: ; fc2fb
-; Reset the animation command loop.
- xor a
- ld [hTileAnimFrame], a
-
-WaitTileAnimation: ; fc2fe
-; Do nothing this frame.
- ret
-; fc2ff
-
-NextTileFrame8: ; fc2ff
- ld a, [TileAnimationTimer]
- inc a
- and a, 7
- ld [TileAnimationTimer], a
- ret
-; fc309
-
-
-ScrollTileRightLeft: ; fc309
-; Scroll right for 4 ticks, then left for 4 ticks.
- ld a, [TileAnimationTimer]
- inc a
- and 7
- ld [TileAnimationTimer], a
- and 4
- jr nz, ScrollTileLeft
- jr ScrollTileRight
-; fc318
-
-ScrollTileUpDown: ; fc318
-; Scroll up for 4 ticks, then down for 4 ticks.
- ld a, [TileAnimationTimer]
- inc a
- and 7
- ld [TileAnimationTimer], a
- and 4
- jr nz, ScrollTileDown
- jr ScrollTileUp
-; fc327
-
-ScrollTileLeft: ; fc327
- ld h, d
- ld l, e
- ld c, 4
-.loop
- rept 4
- ld a, [hl]
- rlca
- ld [hli], a
- endr
- dec c
- jr nz, .loop
- ret
-; fc33b
-
-ScrollTileRight: ; fc33b
- ld h, d
- ld l, e
- ld c, 4
-.loop
- rept 4
- ld a, [hl]
- rrca
- ld [hli], a
- endr
- dec c
- jr nz, .loop
- ret
-; fc34f
-
-ScrollTileUp: ; fc34f
- ld h, d
- ld l, e
- ld d, [hl]
- inc hl
- ld e, [hl]
- ld bc, $e
- add hl, bc
- ld a, 4
-.loop
- ld c, [hl]
- ld [hl], e
- dec hl
- ld b, [hl]
- ld [hl], d
- dec hl
- ld e, [hl]
- ld [hl], c
- dec hl
- ld d, [hl]
- ld [hl], b
- dec hl
- dec a
- jr nz, .loop
- ret
-; fc36a
-
-ScrollTileDown: ; fc36a
- ld h, d
- ld l, e
- ld de, $e
- push hl
- add hl, de
- ld d, [hl]
- inc hl
- ld e, [hl]
- pop hl
- ld a, 4
-.loop
- ld b, [hl]
- ld [hl], d
- inc hl
- ld c, [hl]
- ld [hl], e
- inc hl
- ld d, [hl]
- ld [hl], b
- inc hl
- ld e, [hl]
- ld [hl], c
- inc hl
- dec a
- jr nz, .loop
- ret
-; fc387
-
-
-AnimateFountain: ; fc387
- ld hl, [sp+0]
- ld b, h
- ld c, l
- ld hl, .frames
- ld a, [TileAnimationTimer]
- and 7
- add a
- add l
- ld l, a
- jr nc, .asm_fc399
- inc h
-
-.asm_fc399
- ld a, [hli]
- ld h, [hl]
- ld l, a
- ld sp, hl
- ld l, e
- ld h, d
- jp WriteTile
-
-.frames
- dw .frame1
- dw .frame2
- dw .frame3
- dw .frame4
- dw .frame3
- dw .frame4
- dw .frame5
- dw .frame1
-
-.frame1
- INCBIN "gfx/tilesets/fountain/1.2bpp"
-.frame2
- INCBIN "gfx/tilesets/fountain/2.2bpp"
-.frame3
- INCBIN "gfx/tilesets/fountain/3.2bpp"
-.frame4
- INCBIN "gfx/tilesets/fountain/4.2bpp"
-.frame5
- INCBIN "gfx/tilesets/fountain/5.2bpp"
-; fc402
-
-
-AnimateWaterTile: ; fc402
-; Draw a water tile for the current frame in VRAM tile at de.
-
-; Save sp in bc (see WriteTile).
- ld hl, [sp+0]
- ld b, h
- ld c, l
-
- ld a, [TileAnimationTimer]
-
-; 4 tile graphics, updated every other frame.
- and 3 << 1
-
-; 2 x 8 = 16 bytes per tile
- add a
- add a
- add a
-
- add WaterTileFrames % $100
- ld l, a
- ld a, 0
- adc WaterTileFrames / $100
- ld h, a
-
-; Stack now points to the start of the tile for this frame.
- ld sp, hl
-
- ld l, e
- ld h, d
-
- jp WriteTile
-; fc41c
-
-WaterTileFrames: ; fc41c
-; Frames 0-3
-; INCBIN "gfx/tilesets/water.2bpp"
-INCBIN "baserom.gbc",$fc41c,$fc45c - $fc41c
-; fc45c
-
-
-ForestTreeLeftAnimation: ; fc45c
- ld hl, [sp+0]
- ld b, h
- ld c, l
-
-; Only during the Celebi event.
- ld a, [$dbf3]
- bit 2, a
- jr nz, .asm_fc46c
- ld hl, ForestTreeLeftFrames
- jr .asm_fc47d
-
-.asm_fc46c
- ld a, [TileAnimationTimer]
- call GetForestTreeFrame
- add a
- add a
- add a
- add ForestTreeLeftFrames % $100
- ld l, a
- ld a, 0
- adc ForestTreeLeftFrames / $100
- ld h, a
-
-.asm_fc47d
- ld sp, hl
- ld hl, $90c0
- jp WriteTile
-; fc484
-
-
-ForestTreeLeftFrames: ; fc484
- INCBIN "gfx/tilesets/forest-tree/1.2bpp"
- INCBIN "gfx/tilesets/forest-tree/2.2bpp"
-; fc4a4
-
-ForestTreeRightFrames: ; fc4a4
- INCBIN "gfx/tilesets/forest-tree/3.2bpp"
- INCBIN "gfx/tilesets/forest-tree/4.2bpp"
-; fc4c4
-
-
-ForestTreeRightAnimation: ; fc4c4
- ld hl, [sp+0]
- ld b, h
- ld c, l
-
-; Only during the Celebi event.
- ld a, [$dbf3]
- bit 2, a
- jr nz, .asm_fc4d4
- ld hl, ForestTreeRightFrames
- jr .asm_fc4eb
-
-.asm_fc4d4
- ld a, [TileAnimationTimer]
- call GetForestTreeFrame
- add a
- add a
- add a
- add ForestTreeLeftFrames % $100
- ld l, a
- ld a, 0
- adc ForestTreeLeftFrames / $100
- ld h, a
- push bc
- ld bc, ForestTreeRightFrames - ForestTreeLeftFrames
- add hl, bc
- pop bc
-
-.asm_fc4eb
- ld sp, hl
- ld hl, $90f0
- jp WriteTile
-; fc4f2
-
-
-ForestTreeLeftAnimation2: ; fc4f2
- ld hl, [sp+0]
- ld b, h
- ld c, l
-
-; Only during the Celebi event.
- ld a, [$dbf3]
- bit 2, a
- jr nz, .asm_fc502
- ld hl, ForestTreeLeftFrames
- jr .asm_fc515
-
-.asm_fc502
- ld a, [TileAnimationTimer]
- call GetForestTreeFrame
- xor 2
- add a
- add a
- add a
- add ForestTreeLeftFrames % $100
- ld l, a
- ld a, 0
- adc ForestTreeLeftFrames / $100
- ld h, a
-
-.asm_fc515
- ld sp, hl
- ld hl, $90c0
- jp WriteTile
-; fc51c
-
-
-ForestTreeRightAnimation2: ; fc51c
- ld hl, [sp+0]
- ld b, h
- ld c, l
-
-; Only during the Celebi event.
- ld a, [$dbf3]
- bit 2, a
- jr nz, .asm_fc52c
- ld hl, ForestTreeRightFrames
- jr .asm_fc545
-
-.asm_fc52c
- ld a, [TileAnimationTimer]
- call GetForestTreeFrame
- xor 2
- add a
- add a
- add a
- add ForestTreeLeftFrames % $100
- ld l, a
- ld a, 0
- adc ForestTreeLeftFrames / $100
- ld h, a
- push bc
- ld bc, ForestTreeRightFrames - ForestTreeLeftFrames
- add hl, bc
- pop bc
-
-.asm_fc545
- ld sp, hl
- ld hl, $90f0
- jp WriteTile
-; fc54c
-
-
-GetForestTreeFrame: ; fc54c
-; Return 0 if a is even, or 2 if odd.
- and a
- jr z, .even
- cp 1
- jr z, .odd
- cp 2
- jr z, .even
- cp 3
- jr z, .odd
- cp 4
- jr z, .even
- cp 5
- jr z, .odd
- cp 6
- jr z, .even
-.odd
- ld a, 2
- scf
- ret
-.even
- xor a
- ret
-; fc56d
-
-
-AnimateFlowerTile: ; fc56d
-; No parameters.
-
-; Save sp in bc (see WriteTile).
- ld hl, [sp+0]
- ld b, h
- ld c, l
-
-; Alternate tile graphc every other frame
- ld a, [TileAnimationTimer]
- and 1 << 1
- ld e, a
-
-; CGB has different color mappings for flowers.
- ld a, [hCGB]
- and 1
-
- add e
- swap a ; << 4 (16 bytes)
- ld e, a
- ld d, 0
- ld hl, FlowerTileFrames
- add hl, de
- ld sp, hl
-
- ld hl, VTiles2 + $30 ; tile 4
-
- jp WriteTile
-; fc58c
-
-FlowerTileFrames: ; fc58c
-; frame 0 dmg
-; frame 0 cgb
-; frame 1 dmg
-; frame 1 sgb
-; INCBIN "gfx/tilesets/flower.2bpp"
-INCBIN "baserom.gbc",$fc58c,$fc5cc - $fc58c
-; fc5cc
-
-
-SafariFountainAnim1: ; fc5cc
-; Splash in the bottom-right corner of the fountain.
- ld hl, [sp+0]
- ld b, h
- ld c, l
- ld a, [TileAnimationTimer]
- and 6
- srl a
- inc a
- inc a
- and 3
- swap a
- ld e, a
- ld d, 0
- ld hl, SafariFountainFrames
- add hl, de
- ld sp, hl
- ld hl, $95b0
- jp WriteTile
-; fc5eb
-
-
-SafariFountainAnim2: ; fc5eb
-; Splash in the top-left corner of the fountain.
- ld hl, [sp+0]
- ld b, h
- ld c, l
- ld a, [TileAnimationTimer]
- and 6
- add a
- add a
- add a
- ld e, a
- ld d, 0
- ld hl, SafariFountainFrames
- add hl, de
- ld sp, hl
- ld hl, $9380
- jp WriteTile
-; fc605
-
-
-SafariFountainFrames: ; fc605
- INCBIN "gfx/tilesets/safari/1.2bpp"
- INCBIN "gfx/tilesets/safari/2.2bpp"
- INCBIN "gfx/tilesets/safari/3.2bpp"
- INCBIN "gfx/tilesets/safari/4.2bpp"
-; fc645
-
-
-AnimateSproutPillarTile: ; fc645
-; Read from struct at de:
-; Destination (VRAM)
-; Address of the first tile in the frame array
-
- ld hl, [sp+0]
- ld b, h
- ld c, l
-
- ld a, [TileAnimationTimer]
- and 7
-
-; Get frame index a
- ld hl, .frames
- add l
- ld l, a
- ld a, 0
- adc h
- ld h, a
- ld a, [hl]
-
-; Destination
- ld l, e
- ld h, d
- ld e, [hl]
- inc hl
- ld d, [hl]
- inc hl
-
-; Add the frame index to the starting address
- add [hl]
- inc hl
- ld h, [hl]
- ld l, a
- ld a, 0
- adc h
- ld h, a
-
- ld sp, hl
- ld l, e
- ld h, d
- jr WriteTile
-
-.frames
- db $00, $10, $20, $30, $40, $30, $20, $10
-; fc673
-
-
-NextTileFrame: ; fc673
- ld hl, TileAnimationTimer
- inc [hl]
- ret
-; fc678
-
-
-AnimateWhirlpoolTile: ; fc678
-; Update whirlpool tile using struct at de.
-
-; Struct:
-; VRAM address
-; Address of the first tile
-
-; Only does one of 4 tiles at a time.
-
-; Save sp in bc (see WriteTile).
- ld hl, [sp+0]
- ld b, h
- ld c, l
-
-; de = VRAM address
- ld l, e
- ld h, d
- ld e, [hl]
- inc hl
- ld d, [hl]
- inc hl
-; Tile address is now at hl.
-
-; Get the tile for this frame.
- ld a, [TileAnimationTimer]
- and %11 ; 4 frames x2
- swap a ; * 16 bytes per tile
-
- add [hl]
- inc hl
- ld h, [hl]
- ld l, a
- ld a, 0
- adc h
- ld h, a
-
-; Stack now points to the desired frame.
- ld sp, hl
-
- ld l, e
- ld h, d
-
- jr WriteTile
-; fc696
-
-
-WriteTileFromBuffer: ; fc696
-; Write tiledata at $cf41 to de.
-; $cf41 is loaded to sp for WriteTile.
-
- ld hl, [sp+0]
- ld b, h
- ld c, l
-
- ld hl, $cf41
- ld sp, hl
-
- ld h, d
- ld l, e
- jr WriteTile
-; fc6a2
-
-
-WriteTileToBuffer: ; fc6a2
-; Write tiledata de to $cf41.
-; de is loaded to sp for WriteTile.
-
- ld hl, [sp+0]
- ld b, h
- ld c, l
-
- ld h, d
- ld l, e
- ld sp, hl
-
- ld hl, $cf41
-
- ; fallthrough
-
-WriteTile: ; fc6ac
-; Write one 8x8 tile ($10 bytes) from sp to hl.
-
-; Warning: sp is saved in bc so we can abuse pop.
-; sp is restored to address bc. Save sp in bc before calling.
-
- pop de
- ld [hl], e
- inc hl
- ld [hl], d
-
-rept 7
- pop de
- inc hl
- ld [hl], e
- inc hl
- ld [hl], d
-endr
-
-; restore sp
- ld h, b
- ld l, c
- ld sp, hl
- ret
-; fc6d7
-
-
-TileAnimationPalette: ; fc6d7
-; Transition between color values 0-2 for color 0 in palette 3.
-
-; No palette changes on DMG.
- ld a, [hCGB]
- and a
- ret z
-
-; We don't want to mess with non-standard palettes.
- ld a, [rBGP] ; BGP
- cp %11100100
- ret nz
-
-; Only update on even frames.
- ld a, [TileAnimationTimer]
- ld l, a
- and 1 ; odd
- ret nz
-
-; Ready for BGPD input...
- ld a, %10011000 ; auto increment, index $18 (pal 3 color 0)
- ld [rBGPI], a
-
- ld a, [rSVBK]
- push af
- ld a, 5 ; wra5: gfx
- ld [rSVBK], a
-
-; Update color 0 in order 0 1 2 1
-
- ld a, l
- and %110 ; frames 0 2 4 6
-
- jr z, .color0
-
- cp 4
- jr z, .color2
-
-.color1
- ld hl, $d01a ; pal 3 color 1
- ld a, [hli]
- ld [rBGPD], a
- ld a, [hli]
- ld [rBGPD], a
- jr .end
-
-.color0
- ld hl, $d018 ; pal 3 color 0
- ld a, [hli]
- ld [rBGPD], a
- ld a, [hli]
- ld [rBGPD], a
- jr .end
-
-.color2
- ld hl, $d01c ; pal 3 color 2
- ld a, [hli]
- ld [rBGPD], a
- ld a, [hli]
- ld [rBGPD], a
-
-.end
- pop af
- ld [rSVBK], a
- ret
-; fc71e
-
-
-Functionfc71e: ; fc71e
- ld a, [hCGB]
- and a
- ret z
-
- ld a, [rBGP]
- cp $e4
- ret nz
-
- ld a, [$d847]
- cp $ff
- ret nz
-
- ld a, [rSVBK]
- push af
-
- ld a, 5
- ld [rSVBK], a
- ld a, $a0
- ld [rBGPI], a
- ld a, [$ff9b]
- and 2
- jr nz, .asm_fc743
- ld hl, $d020
- jr .asm_fc746
-
-.asm_fc743
- ld hl, $d022
-
-.asm_fc746
- ld a, [hli]
- ld [rBGPD], a
- ld a, [hli]
- ld [rBGPD], a
-
- pop af
- ld [rSVBK], a
- ret
-; fc750
-
-
-SproutPillarTilePointers: ; fc750
-SproutPillarTilePointer1:
- dw $92d0, SproutPillarTile1
-SproutPillarTilePointer2:
- dw $92f0, SproutPillarTile2
-SproutPillarTilePointer3:
- dw $93d0, SproutPillarTile3
-SproutPillarTilePointer4:
- dw $93f0, SproutPillarTile4
-SproutPillarTilePointer5:
- dw $93c0, SproutPillarTile5
-SproutPillarTilePointer6:
- dw $92c0, SproutPillarTile6
-SproutPillarTilePointer7:
- dw $94d0, SproutPillarTile7
-SproutPillarTilePointer8:
- dw $94f0, SproutPillarTile8
-SproutPillarTilePointer9:
- dw $95d0, SproutPillarTile9
-SproutPillarTilePointer10:
- dw $95f0, SproutPillarTile10
-
-SproutPillarTile1:
- INCBIN "gfx/tilesets/sprout-pillar/1.2bpp"
-SproutPillarTile2:
- INCBIN "gfx/tilesets/sprout-pillar/2.2bpp"
-SproutPillarTile3:
- INCBIN "gfx/tilesets/sprout-pillar/3.2bpp"
-SproutPillarTile4:
- INCBIN "gfx/tilesets/sprout-pillar/4.2bpp"
-SproutPillarTile5:
- INCBIN "gfx/tilesets/sprout-pillar/5.2bpp"
-SproutPillarTile6:
- INCBIN "gfx/tilesets/sprout-pillar/6.2bpp"
-SproutPillarTile7:
- INCBIN "gfx/tilesets/sprout-pillar/7.2bpp"
-SproutPillarTile8:
- INCBIN "gfx/tilesets/sprout-pillar/8.2bpp"
-SproutPillarTile9:
- INCBIN "gfx/tilesets/sprout-pillar/9.2bpp"
-SproutPillarTile10:
- INCBIN "gfx/tilesets/sprout-pillar/10.2bpp"
-; fca98
-
-
-INCBIN "baserom.gbc",$fca98,$fcba8 - $fca98
-
+INCLUDE "tilesets/animations.asm"
Functionfcba8: ; fcba8
ld a, e
--- /dev/null
+++ b/tilesets/animations.asm
@@ -1,0 +1,1028 @@
+
+_AnimateTileset: ; fc000
+; Iterate over a given pointer array of
+; animation functions (one per frame).
+
+; Typically in wra1, vra0
+
+ ld a, [TilesetAnim]
+ ld e, a
+ ld a, [TilesetAnim + 1]
+ ld d, a
+
+ ld a, [hTileAnimFrame]
+ ld l, a
+ inc a
+ ld [hTileAnimFrame], a
+
+ ld h, 0
+ add hl, hl
+ add hl, hl
+ add hl, de
+
+; 2-byte parameter
+; All functions take input de.
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ inc hl
+
+; Function address
+ ld a, [hli]
+ ld h, [hl]
+ ld l, a
+
+ jp [hl]
+; fc01b
+
+
+Tileset00Anim: ; 0xfc01b
+Tileset02Anim: ; 0xfc01b
+Tileset03Anim: ; 0xfc01b
+; param, function
+ dw $9140, AnimateWaterTile
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, TileAnimationPalette
+ dw NULL, WaitTileAnimation
+ dw NULL, AnimateFlowerTile
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, NextTileFrame8
+ dw NULL, DoneTileAnimation
+; 0xfc047
+
+Tileset25Anim: ; 0xfc047
+; param, function
+ dw $9140, AnimateWaterTile
+ dw NULL, WaitTileAnimation
+ dw $95f0, AnimateFountain
+ dw NULL, WaitTileAnimation
+ dw NULL, TileAnimationPalette
+ dw NULL, WaitTileAnimation
+ dw NULL, AnimateFlowerTile
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, NextTileFrame8
+ dw NULL, DoneTileAnimation
+; 0xfc073
+
+Tileset31Anim: ; 0xfc073
+; param, function
+ dw NULL, ForestTreeLeftAnimation
+ dw NULL, ForestTreeRightAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, ForestTreeLeftAnimation2
+ dw NULL, ForestTreeRightAnimation2
+ dw NULL, AnimateFlowerTile
+ dw $9140, AnimateWaterTile
+ dw NULL, TileAnimationPalette
+ dw NULL, NextTileFrame8
+ dw NULL, DoneTileAnimation
+; 0xfc0a3
+
+Tileset01Anim: ; 0xfc0a3
+; param, function
+ dw $9140, AnimateWaterTile
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, TileAnimationPalette
+ dw NULL, WaitTileAnimation
+ dw NULL, AnimateFlowerTile
+ dw $4a98, AnimateWhirlpoolTile
+ dw $4a9c, AnimateWhirlpoolTile
+ dw $4aa0, AnimateWhirlpoolTile
+ dw $4aa4, AnimateWhirlpoolTile
+ dw NULL, WaitTileAnimation
+ dw NULL, NextTileFrame8
+ dw NULL, DoneTileAnimation
+; 0xfc0d7
+
+INCBIN "baserom.gbc",$fc0d7,$fc12f - $fc0d7
+
+Tileset09Anim: ; 0xfc12f
+; param, function
+ dw $9140, AnimateWaterTile
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, TileAnimationPalette
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, NextTileFrame8
+ dw NULL, DoneTileAnimation
+; 0xfc15f
+
+Tileset15Anim: ; 0xfc15f
+; param, function
+ dw NULL, SafariFountainAnim2
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, SafariFountainAnim1
+ dw NULL, WaitTileAnimation
+ dw NULL, NextTileFrame8
+ dw NULL, DoneTileAnimation
+; 0xfc17f
+
+INCBIN "baserom.gbc",$fc17f,$fc1e7 - $fc17f
+
+Tileset24Anim: ; 0xfc1e7
+Tileset30Anim: ; 0xfc1e7
+; param, function
+ dw $9140, WriteTileToBuffer
+ dw NULL, Functionfc71e
+ dw $cf41, ScrollTileRightLeft
+ dw NULL, Functionfc71e
+ dw $9140, WriteTileFromBuffer
+ dw NULL, Functionfc71e
+ dw NULL, TileAnimationPalette
+ dw NULL, Functionfc71e
+ dw $9400, WriteTileToBuffer
+ dw NULL, Functionfc71e
+ dw $cf41, ScrollTileDown
+ dw NULL, Functionfc71e
+ dw $cf41, ScrollTileDown
+ dw NULL, Functionfc71e
+ dw $cf41, ScrollTileDown
+ dw NULL, Functionfc71e
+ dw $9400, WriteTileFromBuffer
+ dw NULL, Functionfc71e
+ dw NULL, DoneTileAnimation
+; 0xfc233
+
+Tileset29Anim: ; 0xfc233
+; param, function
+ dw $9350, WriteTileToBuffer
+ dw NULL, Functionfc71e
+ dw $cf41, ScrollTileRightLeft
+ dw NULL, Functionfc71e
+ dw $9350, WriteTileFromBuffer
+ dw NULL, Functionfc71e
+ dw NULL, TileAnimationPalette
+ dw NULL, Functionfc71e
+ dw $9310, WriteTileToBuffer
+ dw NULL, Functionfc71e
+ dw $cf41, ScrollTileDown
+ dw NULL, Functionfc71e
+ dw $cf41, ScrollTileDown
+ dw NULL, Functionfc71e
+ dw $cf41, ScrollTileDown
+ dw NULL, Functionfc71e
+ dw $9310, WriteTileFromBuffer
+ dw NULL, Functionfc71e
+ dw NULL, DoneTileAnimation
+; 0xfc27f
+
+Tileset23Anim: ; 0xfc27f
+; param, function
+ dw SproutPillarTilePointer9, AnimateSproutPillarTile
+ dw SproutPillarTilePointer10, AnimateSproutPillarTile
+ dw SproutPillarTilePointer7, AnimateSproutPillarTile
+ dw SproutPillarTilePointer8, AnimateSproutPillarTile
+ dw SproutPillarTilePointer5, AnimateSproutPillarTile
+ dw SproutPillarTilePointer6, AnimateSproutPillarTile
+ dw SproutPillarTilePointer3, AnimateSproutPillarTile
+ dw SproutPillarTilePointer4, AnimateSproutPillarTile
+ dw SproutPillarTilePointer1, AnimateSproutPillarTile
+ dw SproutPillarTilePointer2, AnimateSproutPillarTile
+ dw NULL, NextTileFrame
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, DoneTileAnimation
+; 0xfc2bf
+
+INCBIN "baserom.gbc",$fc2bf,$fc2e7 - $fc2bf
+
+Tileset04Anim: ; 0xfc2e7
+Tileset05Anim: ; 0xfc2e7
+Tileset06Anim: ; 0xfc2e7
+Tileset07Anim: ; 0xfc2e7
+Tileset08Anim: ; 0xfc2e7
+Tileset10Anim: ; 0xfc2e7
+Tileset11Anim: ; 0xfc2e7
+Tileset12Anim: ; 0xfc2e7
+Tileset13Anim: ; 0xfc2e7
+Tileset14Anim: ; 0xfc2e7
+Tileset16Anim: ; 0xfc2e7
+Tileset17Anim: ; 0xfc2e7
+Tileset18Anim: ; 0xfc2e7
+Tileset19Anim: ; 0xfc2e7
+Tileset20Anim: ; 0xfc2e7
+Tileset21Anim: ; 0xfc2e7
+Tileset22Anim: ; 0xfc2e7
+Tileset26Anim: ; 0xfc2e7
+Tileset27Anim: ; 0xfc2e7
+Tileset28Anim: ; 0xfc2e7
+Tileset32Anim: ; 0xfc2e7
+Tileset33Anim: ; 0xfc2e7
+Tileset34Anim: ; 0xfc2e7
+Tileset35Anim: ; 0xfc2e7
+Tileset36Anim: ; 0xfc2e7
+; param, function
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, WaitTileAnimation
+ dw NULL, DoneTileAnimation
+; 0xfc2fb
+
+DoneTileAnimation: ; fc2fb
+; Reset the animation command loop.
+ xor a
+ ld [hTileAnimFrame], a
+
+WaitTileAnimation: ; fc2fe
+; Do nothing this frame.
+ ret
+; fc2ff
+
+NextTileFrame8: ; fc2ff
+ ld a, [TileAnimationTimer]
+ inc a
+ and a, 7
+ ld [TileAnimationTimer], a
+ ret
+; fc309
+
+
+ScrollTileRightLeft: ; fc309
+; Scroll right for 4 ticks, then left for 4 ticks.
+ ld a, [TileAnimationTimer]
+ inc a
+ and 7
+ ld [TileAnimationTimer], a
+ and 4
+ jr nz, ScrollTileLeft
+ jr ScrollTileRight
+; fc318
+
+ScrollTileUpDown: ; fc318
+; Scroll up for 4 ticks, then down for 4 ticks.
+ ld a, [TileAnimationTimer]
+ inc a
+ and 7
+ ld [TileAnimationTimer], a
+ and 4
+ jr nz, ScrollTileDown
+ jr ScrollTileUp
+; fc327
+
+ScrollTileLeft: ; fc327
+ ld h, d
+ ld l, e
+ ld c, 4
+.loop
+ rept 4
+ ld a, [hl]
+ rlca
+ ld [hli], a
+ endr
+ dec c
+ jr nz, .loop
+ ret
+; fc33b
+
+ScrollTileRight: ; fc33b
+ ld h, d
+ ld l, e
+ ld c, 4
+.loop
+ rept 4
+ ld a, [hl]
+ rrca
+ ld [hli], a
+ endr
+ dec c
+ jr nz, .loop
+ ret
+; fc34f
+
+ScrollTileUp: ; fc34f
+ ld h, d
+ ld l, e
+ ld d, [hl]
+ inc hl
+ ld e, [hl]
+ ld bc, $e
+ add hl, bc
+ ld a, 4
+.loop
+ ld c, [hl]
+ ld [hl], e
+ dec hl
+ ld b, [hl]
+ ld [hl], d
+ dec hl
+ ld e, [hl]
+ ld [hl], c
+ dec hl
+ ld d, [hl]
+ ld [hl], b
+ dec hl
+ dec a
+ jr nz, .loop
+ ret
+; fc36a
+
+ScrollTileDown: ; fc36a
+ ld h, d
+ ld l, e
+ ld de, $e
+ push hl
+ add hl, de
+ ld d, [hl]
+ inc hl
+ ld e, [hl]
+ pop hl
+ ld a, 4
+.loop
+ ld b, [hl]
+ ld [hl], d
+ inc hl
+ ld c, [hl]
+ ld [hl], e
+ inc hl
+ ld d, [hl]
+ ld [hl], b
+ inc hl
+ ld e, [hl]
+ ld [hl], c
+ inc hl
+ dec a
+ jr nz, .loop
+ ret
+; fc387
+
+
+AnimateFountain: ; fc387
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+ ld hl, .frames
+ ld a, [TileAnimationTimer]
+ and 7
+ add a
+ add l
+ ld l, a
+ jr nc, .asm_fc399
+ inc h
+
+.asm_fc399
+ ld a, [hli]
+ ld h, [hl]
+ ld l, a
+ ld sp, hl
+ ld l, e
+ ld h, d
+ jp WriteTile
+
+.frames
+ dw .frame1
+ dw .frame2
+ dw .frame3
+ dw .frame4
+ dw .frame3
+ dw .frame4
+ dw .frame5
+ dw .frame1
+
+.frame1
+ INCBIN "gfx/tilesets/fountain/1.2bpp"
+.frame2
+ INCBIN "gfx/tilesets/fountain/2.2bpp"
+.frame3
+ INCBIN "gfx/tilesets/fountain/3.2bpp"
+.frame4
+ INCBIN "gfx/tilesets/fountain/4.2bpp"
+.frame5
+ INCBIN "gfx/tilesets/fountain/5.2bpp"
+; fc402
+
+
+AnimateWaterTile: ; fc402
+; Draw a water tile for the current frame in VRAM tile at de.
+
+; Save sp in bc (see WriteTile).
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+
+ ld a, [TileAnimationTimer]
+
+; 4 tile graphics, updated every other frame.
+ and 3 << 1
+
+; 2 x 8 = 16 bytes per tile
+ add a
+ add a
+ add a
+
+ add WaterTileFrames % $100
+ ld l, a
+ ld a, 0
+ adc WaterTileFrames / $100
+ ld h, a
+
+; Stack now points to the start of the tile for this frame.
+ ld sp, hl
+
+ ld l, e
+ ld h, d
+
+ jp WriteTile
+; fc41c
+
+WaterTileFrames: ; fc41c
+; Frames 0-3
+; INCBIN "gfx/tilesets/water.2bpp"
+INCBIN "baserom.gbc",$fc41c,$fc45c - $fc41c
+; fc45c
+
+
+ForestTreeLeftAnimation: ; fc45c
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+
+; Only during the Celebi event.
+ ld a, [$dbf3]
+ bit 2, a
+ jr nz, .asm_fc46c
+ ld hl, ForestTreeLeftFrames
+ jr .asm_fc47d
+
+.asm_fc46c
+ ld a, [TileAnimationTimer]
+ call GetForestTreeFrame
+ add a
+ add a
+ add a
+ add ForestTreeLeftFrames % $100
+ ld l, a
+ ld a, 0
+ adc ForestTreeLeftFrames / $100
+ ld h, a
+
+.asm_fc47d
+ ld sp, hl
+ ld hl, $90c0
+ jp WriteTile
+; fc484
+
+
+ForestTreeLeftFrames: ; fc484
+ INCBIN "gfx/tilesets/forest-tree/1.2bpp"
+ INCBIN "gfx/tilesets/forest-tree/2.2bpp"
+; fc4a4
+
+ForestTreeRightFrames: ; fc4a4
+ INCBIN "gfx/tilesets/forest-tree/3.2bpp"
+ INCBIN "gfx/tilesets/forest-tree/4.2bpp"
+; fc4c4
+
+
+ForestTreeRightAnimation: ; fc4c4
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+
+; Only during the Celebi event.
+ ld a, [$dbf3]
+ bit 2, a
+ jr nz, .asm_fc4d4
+ ld hl, ForestTreeRightFrames
+ jr .asm_fc4eb
+
+.asm_fc4d4
+ ld a, [TileAnimationTimer]
+ call GetForestTreeFrame
+ add a
+ add a
+ add a
+ add ForestTreeLeftFrames % $100
+ ld l, a
+ ld a, 0
+ adc ForestTreeLeftFrames / $100
+ ld h, a
+ push bc
+ ld bc, ForestTreeRightFrames - ForestTreeLeftFrames
+ add hl, bc
+ pop bc
+
+.asm_fc4eb
+ ld sp, hl
+ ld hl, $90f0
+ jp WriteTile
+; fc4f2
+
+
+ForestTreeLeftAnimation2: ; fc4f2
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+
+; Only during the Celebi event.
+ ld a, [$dbf3]
+ bit 2, a
+ jr nz, .asm_fc502
+ ld hl, ForestTreeLeftFrames
+ jr .asm_fc515
+
+.asm_fc502
+ ld a, [TileAnimationTimer]
+ call GetForestTreeFrame
+ xor 2
+ add a
+ add a
+ add a
+ add ForestTreeLeftFrames % $100
+ ld l, a
+ ld a, 0
+ adc ForestTreeLeftFrames / $100
+ ld h, a
+
+.asm_fc515
+ ld sp, hl
+ ld hl, $90c0
+ jp WriteTile
+; fc51c
+
+
+ForestTreeRightAnimation2: ; fc51c
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+
+; Only during the Celebi event.
+ ld a, [$dbf3]
+ bit 2, a
+ jr nz, .asm_fc52c
+ ld hl, ForestTreeRightFrames
+ jr .asm_fc545
+
+.asm_fc52c
+ ld a, [TileAnimationTimer]
+ call GetForestTreeFrame
+ xor 2
+ add a
+ add a
+ add a
+ add ForestTreeLeftFrames % $100
+ ld l, a
+ ld a, 0
+ adc ForestTreeLeftFrames / $100
+ ld h, a
+ push bc
+ ld bc, ForestTreeRightFrames - ForestTreeLeftFrames
+ add hl, bc
+ pop bc
+
+.asm_fc545
+ ld sp, hl
+ ld hl, $90f0
+ jp WriteTile
+; fc54c
+
+
+GetForestTreeFrame: ; fc54c
+; Return 0 if a is even, or 2 if odd.
+ and a
+ jr z, .even
+ cp 1
+ jr z, .odd
+ cp 2
+ jr z, .even
+ cp 3
+ jr z, .odd
+ cp 4
+ jr z, .even
+ cp 5
+ jr z, .odd
+ cp 6
+ jr z, .even
+.odd
+ ld a, 2
+ scf
+ ret
+.even
+ xor a
+ ret
+; fc56d
+
+
+AnimateFlowerTile: ; fc56d
+; No parameters.
+
+; Save sp in bc (see WriteTile).
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+
+; Alternate tile graphc every other frame
+ ld a, [TileAnimationTimer]
+ and 1 << 1
+ ld e, a
+
+; CGB has different color mappings for flowers.
+ ld a, [hCGB]
+ and 1
+
+ add e
+ swap a ; << 4 (16 bytes)
+ ld e, a
+ ld d, 0
+ ld hl, FlowerTileFrames
+ add hl, de
+ ld sp, hl
+
+ ld hl, VTiles2 + $30 ; tile 4
+
+ jp WriteTile
+; fc58c
+
+FlowerTileFrames: ; fc58c
+; frame 0 dmg
+; frame 0 cgb
+; frame 1 dmg
+; frame 1 sgb
+; INCBIN "gfx/tilesets/flower.2bpp"
+INCBIN "baserom.gbc",$fc58c,$fc5cc - $fc58c
+; fc5cc
+
+
+SafariFountainAnim1: ; fc5cc
+; Splash in the bottom-right corner of the fountain.
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+ ld a, [TileAnimationTimer]
+ and 6
+ srl a
+ inc a
+ inc a
+ and 3
+ swap a
+ ld e, a
+ ld d, 0
+ ld hl, SafariFountainFrames
+ add hl, de
+ ld sp, hl
+ ld hl, $95b0
+ jp WriteTile
+; fc5eb
+
+
+SafariFountainAnim2: ; fc5eb
+; Splash in the top-left corner of the fountain.
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+ ld a, [TileAnimationTimer]
+ and 6
+ add a
+ add a
+ add a
+ ld e, a
+ ld d, 0
+ ld hl, SafariFountainFrames
+ add hl, de
+ ld sp, hl
+ ld hl, $9380
+ jp WriteTile
+; fc605
+
+
+SafariFountainFrames: ; fc605
+ INCBIN "gfx/tilesets/safari/1.2bpp"
+ INCBIN "gfx/tilesets/safari/2.2bpp"
+ INCBIN "gfx/tilesets/safari/3.2bpp"
+ INCBIN "gfx/tilesets/safari/4.2bpp"
+; fc645
+
+
+AnimateSproutPillarTile: ; fc645
+; Read from struct at de:
+; Destination (VRAM)
+; Address of the first tile in the frame array
+
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+
+ ld a, [TileAnimationTimer]
+ and 7
+
+; Get frame index a
+ ld hl, .frames
+ add l
+ ld l, a
+ ld a, 0
+ adc h
+ ld h, a
+ ld a, [hl]
+
+; Destination
+ ld l, e
+ ld h, d
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ inc hl
+
+; Add the frame index to the starting address
+ add [hl]
+ inc hl
+ ld h, [hl]
+ ld l, a
+ ld a, 0
+ adc h
+ ld h, a
+
+ ld sp, hl
+ ld l, e
+ ld h, d
+ jr WriteTile
+
+.frames
+ db $00, $10, $20, $30, $40, $30, $20, $10
+; fc673
+
+
+NextTileFrame: ; fc673
+ ld hl, TileAnimationTimer
+ inc [hl]
+ ret
+; fc678
+
+
+AnimateWhirlpoolTile: ; fc678
+; Update whirlpool tile using struct at de.
+
+; Struct:
+; VRAM address
+; Address of the first tile
+
+; Only does one of 4 tiles at a time.
+
+; Save sp in bc (see WriteTile).
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+
+; de = VRAM address
+ ld l, e
+ ld h, d
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ inc hl
+; Tile address is now at hl.
+
+; Get the tile for this frame.
+ ld a, [TileAnimationTimer]
+ and %11 ; 4 frames x2
+ swap a ; * 16 bytes per tile
+
+ add [hl]
+ inc hl
+ ld h, [hl]
+ ld l, a
+ ld a, 0
+ adc h
+ ld h, a
+
+; Stack now points to the desired frame.
+ ld sp, hl
+
+ ld l, e
+ ld h, d
+
+ jr WriteTile
+; fc696
+
+
+WriteTileFromBuffer: ; fc696
+; Write tiledata at $cf41 to de.
+; $cf41 is loaded to sp for WriteTile.
+
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+
+ ld hl, $cf41
+ ld sp, hl
+
+ ld h, d
+ ld l, e
+ jr WriteTile
+; fc6a2
+
+
+WriteTileToBuffer: ; fc6a2
+; Write tiledata de to $cf41.
+; de is loaded to sp for WriteTile.
+
+ ld hl, [sp+0]
+ ld b, h
+ ld c, l
+
+ ld h, d
+ ld l, e
+ ld sp, hl
+
+ ld hl, $cf41
+
+ ; fallthrough
+
+WriteTile: ; fc6ac
+; Write one 8x8 tile ($10 bytes) from sp to hl.
+
+; Warning: sp is saved in bc so we can abuse pop.
+; sp is restored to address bc. Save sp in bc before calling.
+
+ pop de
+ ld [hl], e
+ inc hl
+ ld [hl], d
+
+rept 7
+ pop de
+ inc hl
+ ld [hl], e
+ inc hl
+ ld [hl], d
+endr
+
+; restore sp
+ ld h, b
+ ld l, c
+ ld sp, hl
+ ret
+; fc6d7
+
+
+TileAnimationPalette: ; fc6d7
+; Transition between color values 0-2 for color 0 in palette 3.
+
+; No palette changes on DMG.
+ ld a, [hCGB]
+ and a
+ ret z
+
+; We don't want to mess with non-standard palettes.
+ ld a, [rBGP] ; BGP
+ cp %11100100
+ ret nz
+
+; Only update on even frames.
+ ld a, [TileAnimationTimer]
+ ld l, a
+ and 1 ; odd
+ ret nz
+
+; Ready for BGPD input...
+ ld a, %10011000 ; auto increment, index $18 (pal 3 color 0)
+ ld [rBGPI], a
+
+ ld a, [rSVBK]
+ push af
+ ld a, 5 ; wra5: gfx
+ ld [rSVBK], a
+
+; Update color 0 in order 0 1 2 1
+
+ ld a, l
+ and %110 ; frames 0 2 4 6
+
+ jr z, .color0
+
+ cp 4
+ jr z, .color2
+
+.color1
+ ld hl, $d01a ; pal 3 color 1
+ ld a, [hli]
+ ld [rBGPD], a
+ ld a, [hli]
+ ld [rBGPD], a
+ jr .end
+
+.color0
+ ld hl, $d018 ; pal 3 color 0
+ ld a, [hli]
+ ld [rBGPD], a
+ ld a, [hli]
+ ld [rBGPD], a
+ jr .end
+
+.color2
+ ld hl, $d01c ; pal 3 color 2
+ ld a, [hli]
+ ld [rBGPD], a
+ ld a, [hli]
+ ld [rBGPD], a
+
+.end
+ pop af
+ ld [rSVBK], a
+ ret
+; fc71e
+
+
+Functionfc71e: ; fc71e
+ ld a, [hCGB]
+ and a
+ ret z
+
+ ld a, [rBGP]
+ cp $e4
+ ret nz
+
+ ld a, [$d847]
+ cp $ff
+ ret nz
+
+ ld a, [rSVBK]
+ push af
+
+ ld a, 5
+ ld [rSVBK], a
+ ld a, $a0
+ ld [rBGPI], a
+ ld a, [$ff9b]
+ and 2
+ jr nz, .asm_fc743
+ ld hl, $d020
+ jr .asm_fc746
+
+.asm_fc743
+ ld hl, $d022
+
+.asm_fc746
+ ld a, [hli]
+ ld [rBGPD], a
+ ld a, [hli]
+ ld [rBGPD], a
+
+ pop af
+ ld [rSVBK], a
+ ret
+; fc750
+
+
+SproutPillarTilePointers: ; fc750
+SproutPillarTilePointer1:
+ dw $92d0, SproutPillarTile1
+SproutPillarTilePointer2:
+ dw $92f0, SproutPillarTile2
+SproutPillarTilePointer3:
+ dw $93d0, SproutPillarTile3
+SproutPillarTilePointer4:
+ dw $93f0, SproutPillarTile4
+SproutPillarTilePointer5:
+ dw $93c0, SproutPillarTile5
+SproutPillarTilePointer6:
+ dw $92c0, SproutPillarTile6
+SproutPillarTilePointer7:
+ dw $94d0, SproutPillarTile7
+SproutPillarTilePointer8:
+ dw $94f0, SproutPillarTile8
+SproutPillarTilePointer9:
+ dw $95d0, SproutPillarTile9
+SproutPillarTilePointer10:
+ dw $95f0, SproutPillarTile10
+
+SproutPillarTile1:
+ INCBIN "gfx/tilesets/sprout-pillar/1.2bpp"
+SproutPillarTile2:
+ INCBIN "gfx/tilesets/sprout-pillar/2.2bpp"
+SproutPillarTile3:
+ INCBIN "gfx/tilesets/sprout-pillar/3.2bpp"
+SproutPillarTile4:
+ INCBIN "gfx/tilesets/sprout-pillar/4.2bpp"
+SproutPillarTile5:
+ INCBIN "gfx/tilesets/sprout-pillar/5.2bpp"
+SproutPillarTile6:
+ INCBIN "gfx/tilesets/sprout-pillar/6.2bpp"
+SproutPillarTile7:
+ INCBIN "gfx/tilesets/sprout-pillar/7.2bpp"
+SproutPillarTile8:
+ INCBIN "gfx/tilesets/sprout-pillar/8.2bpp"
+SproutPillarTile9:
+ INCBIN "gfx/tilesets/sprout-pillar/9.2bpp"
+SproutPillarTile10:
+ INCBIN "gfx/tilesets/sprout-pillar/10.2bpp"
+; fca98
+
+
+INCBIN "baserom.gbc", $fca98, $fcba8 - $fca98
+