2013-09-03 22:39:19 +00:00
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; Functions handling map objects.
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2014-02-02 01:26:39 +00:00
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GetSpritePalette:: ; 17ff
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2013-09-03 22:39:19 +00:00
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push hl
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push de
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push bc
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ld c, a
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2015-11-14 19:41:47 +00:00
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2017-12-24 17:47:30 +00:00
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farcall _GetSpritePalette
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2015-11-14 19:41:47 +00:00
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2013-09-03 22:39:19 +00:00
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ld a, c
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pop bc
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pop de
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pop hl
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ret
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; 180e
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2015-11-14 19:41:47 +00:00
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GetSpriteVTile:: ; 180e
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2013-09-03 22:39:19 +00:00
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push hl
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push bc
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2015-02-10 23:14:41 +00:00
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ld hl, UsedSprites + 2
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2015-07-15 19:48:44 +00:00
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ld c, SPRITE_GFX_LIST_CAPACITY - 1
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2013-09-03 22:39:19 +00:00
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ld b, a
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2015-11-02 16:15:32 +00:00
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ld a, [hMapObjectIndexBuffer]
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2015-07-18 19:46:38 +00:00
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cp 0
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2015-07-15 19:48:44 +00:00
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jr z, .nope
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2013-09-03 22:39:19 +00:00
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ld a, b
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2015-07-15 19:48:44 +00:00
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.loop
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2013-09-03 22:39:19 +00:00
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cp [hl]
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2015-07-15 19:48:44 +00:00
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jr z, .found
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2013-09-03 22:39:19 +00:00
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inc hl
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2016-05-04 15:46:23 +00:00
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inc hl
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2013-09-03 22:39:19 +00:00
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dec c
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2015-07-15 19:48:44 +00:00
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jr nz, .loop
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2015-02-10 23:14:41 +00:00
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ld a, [UsedSprites + 1]
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2013-09-03 22:39:19 +00:00
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scf
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2015-07-15 19:48:44 +00:00
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jr .done
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2013-09-03 22:39:19 +00:00
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2015-07-15 19:48:44 +00:00
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.nope
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2015-02-10 23:14:41 +00:00
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ld a, [UsedSprites + 1]
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2015-07-15 19:48:44 +00:00
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jr .done
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2013-09-03 22:39:19 +00:00
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2015-07-15 19:48:44 +00:00
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.found
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2013-09-03 22:39:19 +00:00
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inc hl
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xor a
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ld a, [hl]
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2015-07-15 19:48:44 +00:00
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.done
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2013-09-03 22:39:19 +00:00
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pop bc
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pop hl
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ret
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; 1836
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2015-11-05 01:20:14 +00:00
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DoesSpriteHaveFacings:: ; 1836
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2013-09-03 22:39:19 +00:00
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push de
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push hl
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ld b, a
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ld a, [hROMBank]
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push af
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2015-11-05 01:20:14 +00:00
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ld a, BANK(_DoesSpriteHaveFacings)
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2013-09-03 22:39:19 +00:00
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rst Bankswitch
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ld a, b
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2015-11-05 01:20:14 +00:00
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call _DoesSpriteHaveFacings
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2013-09-03 22:39:19 +00:00
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ld c, a
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pop de
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ld a, d
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rst Bankswitch
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pop hl
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pop de
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ret
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; 184a
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2016-01-11 07:28:09 +00:00
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GetPlayerStandingTile:: ; 184a
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ld a, [PlayerStandingTile]
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2013-09-03 22:39:19 +00:00
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call GetTileCollision
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ld b, a
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ret
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; 1852
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2015-07-23 07:41:52 +00:00
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CheckOnWater:: ; 1852
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2016-01-11 07:28:09 +00:00
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ld a, [PlayerStandingTile]
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2013-09-03 22:39:19 +00:00
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call GetTileCollision
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2017-10-28 21:47:52 +00:00
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sub WATERTILE
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2013-09-03 22:39:19 +00:00
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ret z
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and a
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ret
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; 185d
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2014-02-02 01:26:39 +00:00
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GetTileCollision:: ; 185d
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2013-09-03 22:39:19 +00:00
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; Get the collision type of tile a.
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push de
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push hl
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ld hl, TileCollisionTable
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ld e, a
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ld d, 0
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add hl, de
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ld a, [hROMBank]
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push af
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ld a, BANK(TileCollisionTable)
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rst Bankswitch
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ld e, [hl]
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pop af
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rst Bankswitch
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ld a, e
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and $f ; lo nybble only
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pop hl
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pop de
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ret
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; 1875
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2015-11-15 19:59:38 +00:00
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CheckGrassTile:: ; 1875
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2013-09-03 22:39:19 +00:00
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ld d, a
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and $f0
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2017-12-12 21:15:58 +00:00
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cp HI_NYBBLE_TALL_GRASS
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jr z, .grass
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cp HI_NYBBLE_WATER
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jr z, .water
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2013-09-03 22:39:19 +00:00
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scf
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ret
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2017-12-12 21:15:58 +00:00
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.grass
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2013-09-03 22:39:19 +00:00
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ld a, d
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2017-12-12 21:15:58 +00:00
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and LO_NYBBLE_GRASS
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2013-09-03 22:39:19 +00:00
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ret z
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scf
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ret
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2015-11-15 19:59:38 +00:00
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; For some reason, the above code is duplicated down here.
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2017-12-12 21:15:58 +00:00
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.water
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2013-09-03 22:39:19 +00:00
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ld a, d
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2017-12-12 21:15:58 +00:00
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and LO_NYBBLE_GRASS
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2013-09-03 22:39:19 +00:00
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ret z
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scf
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ret
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; 188e
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2015-07-23 07:41:52 +00:00
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CheckSuperTallGrassTile:: ; 188e
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2017-12-12 21:15:58 +00:00
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cp COLL_LONG_GRASS
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2013-09-03 22:39:19 +00:00
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ret z
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2017-12-12 21:15:58 +00:00
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cp COLL_LONG_GRASS_1C
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2013-09-03 22:39:19 +00:00
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ret
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; 1894
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2014-02-02 01:26:39 +00:00
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CheckCutTreeTile:: ; 1894
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2017-12-12 21:15:58 +00:00
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cp COLL_CUT_TREE
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2013-09-03 22:39:19 +00:00
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ret z
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2017-12-12 21:15:58 +00:00
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cp COLL_CUT_TREE_1A
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2013-09-03 22:39:19 +00:00
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ret
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; 189a
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2014-02-02 01:26:39 +00:00
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CheckHeadbuttTreeTile:: ; 189a
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2017-12-12 21:15:58 +00:00
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cp COLL_HEADBUTT_TREE
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2013-09-03 22:39:19 +00:00
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ret z
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2017-12-12 21:15:58 +00:00
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cp COLL_HEADBUTT_TREE_1D
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2013-09-03 22:39:19 +00:00
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ret
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; 18a0
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2014-02-02 01:26:39 +00:00
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CheckCounterTile:: ; 18a0
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2017-12-12 21:15:58 +00:00
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cp COLL_COUNTER
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2013-09-03 22:39:19 +00:00
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ret z
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2017-12-12 21:15:58 +00:00
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cp COLL_COUNTER_98
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2013-09-03 22:39:19 +00:00
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ret
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; 18a6
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2014-02-02 01:26:39 +00:00
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CheckPitTile:: ; 18a6
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2017-12-12 21:15:58 +00:00
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cp COLL_PIT
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2013-09-03 22:39:19 +00:00
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ret z
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2017-12-12 21:15:58 +00:00
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cp COLL_PIT_68
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2013-09-03 22:39:19 +00:00
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ret
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; 18ac
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2014-02-02 01:26:39 +00:00
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CheckIceTile:: ; 18ac
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2017-12-12 21:15:58 +00:00
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cp COLL_ICE
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2013-09-03 22:39:19 +00:00
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ret z
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2017-12-12 21:15:58 +00:00
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cp COLL_ICE_2B
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2013-09-03 22:39:19 +00:00
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ret z
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scf
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ret
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; 18b4
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2014-02-02 01:26:39 +00:00
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CheckWhirlpoolTile:: ; 18b4
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2013-09-03 22:39:19 +00:00
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nop
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2017-12-12 21:15:58 +00:00
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cp COLL_WHIRLPOOL
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2013-09-03 22:39:19 +00:00
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ret z
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2017-12-12 21:15:58 +00:00
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cp COLL_WHIRLPOOL_2C
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2013-09-03 22:39:19 +00:00
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ret z
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scf
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ret
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; 18bd
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2014-02-02 01:26:39 +00:00
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CheckWaterfallTile:: ; 18bd
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2017-12-12 21:15:58 +00:00
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cp COLL_WATERFALL
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2013-09-03 22:39:19 +00:00
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ret z
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2017-12-12 21:15:58 +00:00
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cp COLL_CURRENT_DOWN
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2013-09-03 22:39:19 +00:00
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ret
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; 18c3
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2014-02-02 01:26:39 +00:00
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CheckStandingOnEntrance:: ; 18c3
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2016-01-11 07:28:09 +00:00
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ld a, [PlayerStandingTile]
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2017-12-12 21:15:58 +00:00
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cp COLL_DOOR
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2013-09-03 22:39:19 +00:00
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ret z
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2017-12-12 21:15:58 +00:00
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cp COLL_DOOR_79
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2013-09-03 22:39:19 +00:00
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ret z
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2017-12-12 21:15:58 +00:00
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cp COLL_STAIRCASE
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2013-09-03 22:39:19 +00:00
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ret z
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2017-12-12 21:15:58 +00:00
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cp COLL_CAVE
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2013-09-03 22:39:19 +00:00
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ret
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; 18d2
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2014-02-02 01:26:39 +00:00
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GetMapObject:: ; 18d2
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2013-09-03 22:39:19 +00:00
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; Return the location of map object a in bc.
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ld hl, MapObjects
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2015-07-15 19:48:44 +00:00
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ld bc, OBJECT_LENGTH
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2013-09-03 22:39:19 +00:00
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call AddNTimes
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ld b, h
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ld c, l
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ret
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; 18de
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2015-11-02 16:15:32 +00:00
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CheckObjectVisibility:: ; 18de
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2015-07-15 19:48:44 +00:00
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; Sets carry if the object is not visible on the screen.
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2015-11-02 16:15:32 +00:00
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ld [hMapObjectIndexBuffer], a
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2013-09-03 22:39:19 +00:00
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call GetMapObject
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2015-07-18 19:46:38 +00:00
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ld hl, MAPOBJECT_OBJECT_STRUCT_ID
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2013-09-03 22:39:19 +00:00
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add hl, bc
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ld a, [hl]
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2015-07-19 08:58:31 +00:00
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cp -1
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2015-07-15 19:48:44 +00:00
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jr z, .not_visible
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2015-11-02 16:15:32 +00:00
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ld [hObjectStructIndexBuffer], a
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2015-07-15 19:48:44 +00:00
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call GetObjectStruct
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2013-09-03 22:39:19 +00:00
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and a
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ret
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2015-07-15 19:48:44 +00:00
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.not_visible
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2013-09-03 22:39:19 +00:00
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scf
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ret
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; 18f5
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2015-11-02 02:17:46 +00:00
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CheckObjectTime:: ; 18f5
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2015-07-15 19:48:44 +00:00
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ld hl, MAPOBJECT_HOUR
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2013-09-03 22:39:19 +00:00
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add hl, bc
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ld a, [hl]
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2015-07-15 19:48:44 +00:00
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cp -1
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jr nz, .check_hour
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ld hl, MAPOBJECT_TIMEOFDAY
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2013-09-03 22:39:19 +00:00
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add hl, bc
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ld a, [hl]
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2015-07-15 19:48:44 +00:00
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cp -1
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jr z, .timeofday_always
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ld hl, .TimeOfDayValues_191e
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2013-09-03 22:39:19 +00:00
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ld a, [TimeOfDay]
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add l
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ld l, a
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2015-07-15 19:48:44 +00:00
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jr nc, .ok
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2013-09-03 22:39:19 +00:00
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inc h
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2015-07-15 19:48:44 +00:00
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.ok
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2013-09-03 22:39:19 +00:00
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ld a, [hl]
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2015-07-15 19:48:44 +00:00
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ld hl, MAPOBJECT_TIMEOFDAY
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2013-09-03 22:39:19 +00:00
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add hl, bc
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and [hl]
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2015-07-15 19:48:44 +00:00
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jr nz, .timeofday_always
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2013-09-03 22:39:19 +00:00
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scf
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ret
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2015-07-15 19:48:44 +00:00
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.timeofday_always
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2013-09-03 22:39:19 +00:00
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and a
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ret
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2016-04-10 18:42:14 +00:00
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.TimeOfDayValues_191e:
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2017-12-11 06:02:28 +00:00
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db MORN, DAY, NITE
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2013-09-03 22:39:19 +00:00
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2015-07-15 19:48:44 +00:00
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.check_hour
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ld hl, MAPOBJECT_HOUR
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2013-09-03 22:39:19 +00:00
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add hl, bc
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ld d, [hl]
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2015-07-15 19:48:44 +00:00
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ld hl, MAPOBJECT_TIMEOFDAY
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2013-09-03 22:39:19 +00:00
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add hl, bc
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ld e, [hl]
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ld hl, hHours
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ld a, d
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cp e
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2015-07-15 19:48:44 +00:00
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jr z, .yes
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jr c, .check_timeofday
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2013-09-03 22:39:19 +00:00
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ld a, [hl]
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cp d
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2015-07-15 19:48:44 +00:00
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jr nc, .yes
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2013-09-03 22:39:19 +00:00
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cp e
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2015-07-15 19:48:44 +00:00
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jr c, .yes
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jr z, .yes
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jr .no
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2013-09-03 22:39:19 +00:00
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2015-07-15 19:48:44 +00:00
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.check_timeofday
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2013-09-03 22:39:19 +00:00
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ld a, e
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cp [hl]
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2015-07-15 19:48:44 +00:00
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jr c, .no
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2013-09-03 22:39:19 +00:00
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ld a, [hl]
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cp d
|
2015-07-15 19:48:44 +00:00
|
|
|
jr nc, .yes
|
|
|
|
jr .no
|
2013-09-03 22:39:19 +00:00
|
|
|
|
2015-07-15 19:48:44 +00:00
|
|
|
.yes
|
2013-09-03 22:39:19 +00:00
|
|
|
and a
|
|
|
|
ret
|
|
|
|
|
2015-07-15 19:48:44 +00:00
|
|
|
.no
|
2013-09-03 22:39:19 +00:00
|
|
|
scf
|
|
|
|
ret
|
|
|
|
; 194d
|
|
|
|
|
2016-01-11 07:36:39 +00:00
|
|
|
; XXX
|
2015-11-02 16:15:32 +00:00
|
|
|
ld [hMapObjectIndexBuffer], a
|
2013-09-03 22:39:19 +00:00
|
|
|
call GetMapObject
|
2015-07-18 19:46:38 +00:00
|
|
|
call CopyObjectStruct
|
2013-09-03 22:39:19 +00:00
|
|
|
ret
|
|
|
|
; 1956
|
|
|
|
|
2015-07-18 19:46:38 +00:00
|
|
|
_CopyObjectStruct:: ; 1956
|
2015-11-02 16:15:32 +00:00
|
|
|
ld [hMapObjectIndexBuffer], a
|
2015-11-02 02:17:46 +00:00
|
|
|
call UnmaskObject
|
2015-11-02 16:15:32 +00:00
|
|
|
ld a, [hMapObjectIndexBuffer]
|
2013-09-03 22:39:19 +00:00
|
|
|
call GetMapObject
|
2017-12-24 17:47:30 +00:00
|
|
|
farcall CopyObjectStruct
|
2013-09-03 22:39:19 +00:00
|
|
|
ret
|
|
|
|
; 1967
|
|
|
|
|
2016-01-11 07:36:39 +00:00
|
|
|
ApplyDeletionToMapObject:: ; 1967
|
2015-11-02 16:15:32 +00:00
|
|
|
ld [hMapObjectIndexBuffer], a
|
2013-09-03 22:39:19 +00:00
|
|
|
call GetMapObject
|
2015-07-18 19:46:38 +00:00
|
|
|
ld hl, MAPOBJECT_OBJECT_STRUCT_ID
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, bc
|
|
|
|
ld a, [hl]
|
2015-07-19 08:58:31 +00:00
|
|
|
cp -1
|
2015-11-02 16:15:32 +00:00
|
|
|
ret z ; already hidden
|
2015-07-19 08:58:31 +00:00
|
|
|
ld [hl], -1
|
2013-09-03 22:39:19 +00:00
|
|
|
push af
|
2016-01-11 07:36:39 +00:00
|
|
|
call .CheckStopFollow
|
2013-09-03 22:39:19 +00:00
|
|
|
pop af
|
2015-07-15 19:48:44 +00:00
|
|
|
call GetObjectStruct
|
2017-12-24 17:47:30 +00:00
|
|
|
farcall DeleteMapObject
|
2013-09-03 22:39:19 +00:00
|
|
|
ret
|
|
|
|
|
2016-04-10 18:42:14 +00:00
|
|
|
.CheckStopFollow:
|
2015-11-02 16:15:32 +00:00
|
|
|
ld hl, wObjectFollow_Leader
|
2013-09-03 22:39:19 +00:00
|
|
|
cp [hl]
|
2015-07-15 19:48:44 +00:00
|
|
|
jr z, .ok
|
2015-11-02 16:15:32 +00:00
|
|
|
ld hl, wObjectFollow_Follower
|
2013-09-03 22:39:19 +00:00
|
|
|
cp [hl]
|
|
|
|
ret nz
|
2015-07-15 19:48:44 +00:00
|
|
|
.ok
|
2017-12-24 17:47:30 +00:00
|
|
|
farcall StopFollow
|
2015-07-15 19:48:44 +00:00
|
|
|
ld a, -1
|
2015-11-02 16:15:32 +00:00
|
|
|
ld [wObjectFollow_Leader], a
|
|
|
|
ld [wObjectFollow_Follower], a
|
2013-09-03 22:39:19 +00:00
|
|
|
ret
|
|
|
|
; 199f
|
|
|
|
|
2015-07-18 19:46:38 +00:00
|
|
|
DeleteObjectStruct:: ; 199f
|
2016-01-11 07:36:39 +00:00
|
|
|
call ApplyDeletionToMapObject
|
2015-11-02 02:17:46 +00:00
|
|
|
call MaskObject
|
2013-09-03 22:39:19 +00:00
|
|
|
ret
|
|
|
|
; 19a6
|
|
|
|
|
2016-01-11 07:36:39 +00:00
|
|
|
CopyPlayerObjectTemplate:: ; 19a6
|
2013-09-03 22:39:19 +00:00
|
|
|
push hl
|
|
|
|
call GetMapObject
|
|
|
|
ld d, b
|
|
|
|
ld e, c
|
2015-07-19 08:58:31 +00:00
|
|
|
ld a, -1
|
2013-09-03 22:39:19 +00:00
|
|
|
ld [de], a
|
|
|
|
inc de
|
|
|
|
pop hl
|
2015-07-15 19:48:44 +00:00
|
|
|
ld bc, OBJECT_LENGTH - 1
|
2013-09-03 22:39:19 +00:00
|
|
|
call CopyBytes
|
|
|
|
ret
|
|
|
|
; 19b8
|
|
|
|
|
2016-01-11 07:36:39 +00:00
|
|
|
; XXX
|
2013-09-03 22:39:19 +00:00
|
|
|
call GetMapObject
|
2015-07-18 19:46:38 +00:00
|
|
|
ld hl, MAPOBJECT_OBJECT_STRUCT_ID
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, bc
|
|
|
|
ld a, [hl]
|
|
|
|
push af
|
2015-07-19 08:58:31 +00:00
|
|
|
ld [hl], -1
|
2013-09-03 22:39:19 +00:00
|
|
|
inc hl
|
2015-07-15 19:48:44 +00:00
|
|
|
ld bc, OBJECT_LENGTH - 1
|
2013-09-03 22:39:19 +00:00
|
|
|
xor a
|
|
|
|
call ByteFill
|
|
|
|
pop af
|
2015-07-19 08:58:31 +00:00
|
|
|
cp -1
|
2013-09-03 22:39:19 +00:00
|
|
|
ret z
|
|
|
|
cp $d
|
|
|
|
ret nc
|
|
|
|
ld b, a
|
2015-11-02 16:15:32 +00:00
|
|
|
ld a, [wObjectFollow_Leader]
|
2013-09-03 22:39:19 +00:00
|
|
|
cp b
|
2015-07-15 19:48:44 +00:00
|
|
|
jr nz, .ok
|
|
|
|
ld a, -1
|
2015-11-02 16:15:32 +00:00
|
|
|
ld [wObjectFollow_Leader], a
|
2013-09-03 22:39:19 +00:00
|
|
|
|
2015-07-15 19:48:44 +00:00
|
|
|
.ok
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, b
|
2015-07-15 19:48:44 +00:00
|
|
|
call GetObjectStruct
|
2017-12-24 17:47:30 +00:00
|
|
|
farcall DeleteMapObject
|
2013-09-03 22:39:19 +00:00
|
|
|
ret
|
|
|
|
; 19e9
|
|
|
|
|
2015-11-12 04:38:57 +00:00
|
|
|
LoadMovementDataPointer:: ; 19e9
|
2017-12-24 18:46:34 +00:00
|
|
|
; Load the movement data pointer for object a.
|
|
|
|
ld [wMovementObject], a
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, [hROMBank]
|
2015-11-02 16:15:32 +00:00
|
|
|
ld [wMovementDataPointer], a
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, l
|
2015-11-02 16:15:32 +00:00
|
|
|
ld [wMovementDataPointer + 1], a
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, h
|
2015-11-02 16:15:32 +00:00
|
|
|
ld [wMovementDataPointer + 2], a
|
2017-12-24 18:46:34 +00:00
|
|
|
ld a, [wMovementObject]
|
2015-11-02 16:15:32 +00:00
|
|
|
call CheckObjectVisibility
|
2013-09-03 22:39:19 +00:00
|
|
|
ret c
|
2015-11-12 04:38:57 +00:00
|
|
|
|
2015-11-02 16:15:32 +00:00
|
|
|
ld hl, OBJECT_MOVEMENTTYPE
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, bc
|
2015-11-06 21:42:38 +00:00
|
|
|
ld [hl], SPRITEMOVEDATA_SCRIPTED
|
2015-11-12 04:38:57 +00:00
|
|
|
|
2015-11-15 04:02:38 +00:00
|
|
|
ld hl, OBJECT_STEP_TYPE
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, bc
|
2015-12-29 18:15:58 +00:00
|
|
|
ld [hl], STEP_TYPE_00
|
2015-11-12 04:38:57 +00:00
|
|
|
|
2013-09-03 22:39:19 +00:00
|
|
|
ld hl, VramState
|
|
|
|
set 7, [hl]
|
|
|
|
and a
|
|
|
|
ret
|
|
|
|
; 1a13
|
|
|
|
|
2015-11-01 01:05:02 +00:00
|
|
|
FindFirstEmptyObjectStruct:: ; 1a13
|
|
|
|
; Returns the index of the first empty object struct in A and its address in HL, then sets carry.
|
|
|
|
; If all object structs are occupied, A = 0 and Z is set.
|
|
|
|
; Preserves BC and DE.
|
2013-09-03 22:39:19 +00:00
|
|
|
push bc
|
|
|
|
push de
|
2014-06-20 00:23:53 +00:00
|
|
|
ld hl, ObjectStructs
|
2015-07-15 19:48:44 +00:00
|
|
|
ld de, OBJECT_STRUCT_LENGTH
|
|
|
|
ld c, NUM_OBJECT_STRUCTS
|
|
|
|
.loop
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, [hl]
|
|
|
|
and a
|
2015-11-01 01:05:02 +00:00
|
|
|
jr z, .break
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, de
|
|
|
|
dec c
|
2015-07-15 19:48:44 +00:00
|
|
|
jr nz, .loop
|
2013-09-03 22:39:19 +00:00
|
|
|
xor a
|
2015-07-15 19:48:44 +00:00
|
|
|
jr .done
|
2013-09-03 22:39:19 +00:00
|
|
|
|
2015-11-01 01:05:02 +00:00
|
|
|
.break
|
|
|
|
ld a, NUM_OBJECT_STRUCTS
|
2013-09-03 22:39:19 +00:00
|
|
|
sub c
|
|
|
|
scf
|
|
|
|
|
2015-07-15 19:48:44 +00:00
|
|
|
.done
|
2013-09-03 22:39:19 +00:00
|
|
|
pop de
|
|
|
|
pop bc
|
|
|
|
ret
|
|
|
|
; 1a2f
|
|
|
|
|
2015-11-06 21:42:38 +00:00
|
|
|
GetSpriteMovementFunction:: ; 1a2f
|
2015-11-02 16:15:32 +00:00
|
|
|
ld hl, OBJECT_MOVEMENTTYPE
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, bc
|
|
|
|
ld a, [hl]
|
2015-11-06 21:42:38 +00:00
|
|
|
cp NUM_SPRITEMOVEDATA
|
2015-07-15 19:48:44 +00:00
|
|
|
jr c, .ok
|
2013-09-03 22:39:19 +00:00
|
|
|
xor a
|
|
|
|
|
2015-07-15 19:48:44 +00:00
|
|
|
.ok
|
2015-11-06 21:42:38 +00:00
|
|
|
ld hl, SpriteMovementData
|
2013-09-03 22:39:19 +00:00
|
|
|
ld e, a
|
|
|
|
ld d, 0
|
2015-11-06 21:42:38 +00:00
|
|
|
rept SPRITEMOVEDATA_FIELDS
|
2017-12-09 05:50:59 +00:00
|
|
|
add hl, de
|
2015-07-20 15:28:05 +00:00
|
|
|
endr
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, [hl]
|
|
|
|
ret
|
|
|
|
; 1a47
|
|
|
|
|
2015-11-13 23:59:49 +00:00
|
|
|
GetInitialFacing:: ; 1a47
|
2013-09-03 22:39:19 +00:00
|
|
|
push bc
|
|
|
|
push de
|
|
|
|
ld e, a
|
|
|
|
ld d, 0
|
2015-11-06 21:42:38 +00:00
|
|
|
ld hl, SpriteMovementData + 1 ; init facing
|
|
|
|
rept SPRITEMOVEDATA_FIELDS
|
2017-12-09 05:50:59 +00:00
|
|
|
add hl, de
|
2015-07-20 15:28:05 +00:00
|
|
|
endr
|
2015-11-06 21:42:38 +00:00
|
|
|
ld a, BANK(SpriteMovementData)
|
2013-09-03 22:39:19 +00:00
|
|
|
call GetFarByte
|
|
|
|
add a
|
2016-05-04 15:46:23 +00:00
|
|
|
add a
|
2013-09-03 22:39:19 +00:00
|
|
|
and $c
|
|
|
|
pop de
|
|
|
|
pop bc
|
|
|
|
ret
|
|
|
|
; 1a61
|
|
|
|
|
2015-11-16 05:52:53 +00:00
|
|
|
CopySpriteMovementData:: ; 1a61
|
2013-09-03 22:39:19 +00:00
|
|
|
ld l, a
|
|
|
|
ld a, [hROMBank]
|
|
|
|
push af
|
2015-11-06 21:42:38 +00:00
|
|
|
ld a, BANK(SpriteMovementData)
|
2013-09-03 22:39:19 +00:00
|
|
|
rst Bankswitch
|
|
|
|
ld a, l
|
|
|
|
push bc
|
|
|
|
|
2015-11-16 05:52:53 +00:00
|
|
|
call .CopyData
|
2013-09-03 22:39:19 +00:00
|
|
|
|
|
|
|
pop bc
|
|
|
|
pop af
|
|
|
|
rst Bankswitch
|
|
|
|
|
|
|
|
ret
|
|
|
|
; 1a71
|
|
|
|
|
2016-04-10 18:42:14 +00:00
|
|
|
.CopyData: ; 1a71
|
2015-11-02 16:15:32 +00:00
|
|
|
ld hl, OBJECT_MOVEMENTTYPE
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, de
|
|
|
|
ld [hl], a
|
2015-11-16 05:52:53 +00:00
|
|
|
|
2013-09-03 22:39:19 +00:00
|
|
|
push de
|
|
|
|
ld e, a
|
|
|
|
ld d, 0
|
2015-11-06 21:42:38 +00:00
|
|
|
ld hl, SpriteMovementData + 1 ; init facing
|
|
|
|
rept SPRITEMOVEDATA_FIELDS
|
2015-07-29 22:22:23 +00:00
|
|
|
add hl, de
|
2015-07-20 15:28:05 +00:00
|
|
|
endr
|
2013-09-03 22:39:19 +00:00
|
|
|
ld b, h
|
|
|
|
ld c, l
|
|
|
|
pop de
|
2015-11-16 05:52:53 +00:00
|
|
|
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, [bc]
|
|
|
|
inc bc
|
|
|
|
rlca
|
|
|
|
rlca
|
2015-11-16 05:52:53 +00:00
|
|
|
and %00001100
|
2015-07-15 19:48:44 +00:00
|
|
|
ld hl, OBJECT_FACING
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, de
|
|
|
|
ld [hl], a
|
2015-11-16 05:52:53 +00:00
|
|
|
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, [bc]
|
|
|
|
inc bc
|
2015-11-14 19:41:47 +00:00
|
|
|
ld hl, OBJECT_ACTION
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, de
|
|
|
|
ld [hl], a
|
2015-11-16 05:52:53 +00:00
|
|
|
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, [bc]
|
|
|
|
inc bc
|
2015-10-30 03:32:11 +00:00
|
|
|
ld hl, OBJECT_FLAGS1
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, de
|
|
|
|
ld [hl], a
|
2015-11-16 05:52:53 +00:00
|
|
|
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, [bc]
|
|
|
|
inc bc
|
2015-10-30 03:32:11 +00:00
|
|
|
ld hl, OBJECT_FLAGS2
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, de
|
|
|
|
ld [hl], a
|
2015-11-16 05:52:53 +00:00
|
|
|
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, [bc]
|
|
|
|
inc bc
|
2015-07-15 19:48:44 +00:00
|
|
|
ld hl, OBJECT_PALETTE
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, de
|
|
|
|
ld [hl], a
|
|
|
|
ret
|
|
|
|
; 1aae
|
|
|
|
|
2015-12-29 18:15:58 +00:00
|
|
|
_GetMovementByte:: ; 1aae
|
2015-11-12 04:38:57 +00:00
|
|
|
; Switch to the movement data bank
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, [hROMBank]
|
|
|
|
push af
|
|
|
|
ld a, [hli]
|
|
|
|
rst Bankswitch
|
2015-11-12 04:38:57 +00:00
|
|
|
; Load the current script byte as given by OBJECT_MOVEMENT_BYTE_INDEX, and increment OBJECT_MOVEMENT_BYTE_INDEX
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, [hli]
|
|
|
|
ld d, [hl]
|
2015-11-12 04:38:57 +00:00
|
|
|
ld hl, OBJECT_MOVEMENT_BYTE_INDEX
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, bc
|
|
|
|
add [hl]
|
|
|
|
ld e, a
|
|
|
|
ld a, d
|
2015-07-15 19:48:44 +00:00
|
|
|
adc 0
|
2013-09-03 22:39:19 +00:00
|
|
|
ld d, a
|
|
|
|
inc [hl]
|
|
|
|
ld a, [de]
|
|
|
|
ld h, a
|
|
|
|
pop af
|
|
|
|
rst Bankswitch
|
|
|
|
|
|
|
|
ld a, h
|
|
|
|
ret
|
|
|
|
; 1ac6
|
|
|
|
|
2015-07-15 19:48:44 +00:00
|
|
|
SetVramState_Bit0:: ; 1ac6
|
2013-09-03 22:39:19 +00:00
|
|
|
ld hl, VramState
|
|
|
|
set 0, [hl]
|
|
|
|
ret
|
|
|
|
; 1acc
|
|
|
|
|
2015-07-15 19:48:44 +00:00
|
|
|
ResetVramState_Bit0:: ; 1acc
|
2013-09-03 22:39:19 +00:00
|
|
|
ld hl, VramState
|
|
|
|
res 0, [hl]
|
|
|
|
ret
|
|
|
|
; 1ad2
|
|
|
|
|
2015-07-22 19:57:02 +00:00
|
|
|
UpdateSprites:: ; 1ad2
|
2013-09-03 22:39:19 +00:00
|
|
|
ld a, [VramState]
|
|
|
|
bit 0, a
|
|
|
|
ret z
|
2015-11-16 05:52:53 +00:00
|
|
|
|
2017-12-24 17:47:30 +00:00
|
|
|
farcall Function55e0
|
|
|
|
farcall _UpdateSprites
|
2013-09-03 22:39:19 +00:00
|
|
|
ret
|
|
|
|
; 1ae5
|
|
|
|
|
2015-07-15 19:48:44 +00:00
|
|
|
GetObjectStruct:: ; 1ae5
|
|
|
|
ld bc, OBJECT_STRUCT_LENGTH
|
2014-06-20 00:23:53 +00:00
|
|
|
ld hl, ObjectStructs
|
2013-09-03 22:39:19 +00:00
|
|
|
call AddNTimes
|
|
|
|
ld b, h
|
|
|
|
ld c, l
|
|
|
|
ret
|
|
|
|
; 1af1
|
|
|
|
|
2016-05-05 02:34:09 +00:00
|
|
|
DoesObjectHaveASprite:: ; 1af1
|
2015-07-15 19:48:44 +00:00
|
|
|
ld hl, OBJECT_SPRITE
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, bc
|
|
|
|
ld a, [hl]
|
|
|
|
and a
|
|
|
|
ret
|
|
|
|
; 1af8
|
|
|
|
|
2015-07-15 19:48:44 +00:00
|
|
|
SetSpriteDirection:: ; 1af8
|
2015-11-14 19:41:47 +00:00
|
|
|
; preserves other flags
|
2013-09-03 22:39:19 +00:00
|
|
|
push af
|
2015-07-15 19:48:44 +00:00
|
|
|
ld hl, OBJECT_FACING
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, bc
|
|
|
|
ld a, [hl]
|
2015-07-15 19:48:44 +00:00
|
|
|
and %11110011
|
2013-09-03 22:39:19 +00:00
|
|
|
ld e, a
|
|
|
|
pop af
|
2015-07-15 19:48:44 +00:00
|
|
|
and %00001100
|
2013-09-03 22:39:19 +00:00
|
|
|
or e
|
|
|
|
ld [hl], a
|
|
|
|
ret
|
|
|
|
; 1b07
|
|
|
|
|
2014-02-02 01:26:39 +00:00
|
|
|
GetSpriteDirection:: ; 1b07
|
2015-07-15 19:48:44 +00:00
|
|
|
ld hl, OBJECT_FACING
|
2013-09-03 22:39:19 +00:00
|
|
|
add hl, bc
|
|
|
|
ld a, [hl]
|
2015-07-15 19:48:44 +00:00
|
|
|
and %00001100
|
2013-09-03 22:39:19 +00:00
|
|
|
ret
|
|
|
|
; 1b0f
|