pokecrystal-board/home/map_objects.asm

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; Functions handling map objects.
GetSpritePalette: ; 17ff
push hl
push de
push bc
ld c, a
callba _GetSpritePalette
ld a, c
pop bc
pop de
pop hl
ret
; 180e
Function180e: ; 180e
push hl
push bc
ld hl, $d156
ld c, $1f
ld b, a
ld a, [hConnectionStripLength]
cp $0
jr z, .asm_182b
ld a, b
.asm_181d
cp [hl]
jr z, .asm_1830
inc hl
inc hl
dec c
jr nz, .asm_181d
ld a, [$d155]
scf
jr .asm_1833
.asm_182b
ld a, [$d155]
jr .asm_1833
.asm_1830
inc hl
xor a
ld a, [hl]
.asm_1833
pop bc
pop hl
ret
; 1836
Function1836: ; 1836
push de
push hl
ld b, a
ld a, [hROMBank]
push af
ld a, BANK(Function142a7)
rst Bankswitch
ld a, b
call Function142a7
ld c, a
pop de
ld a, d
rst Bankswitch
pop hl
pop de
ret
; 184a
Function184a: ; 184a
ld a, [StandingTile]
call GetTileCollision
ld b, a
ret
; 1852
Function1852: ; 1852
ld a, [StandingTile]
call GetTileCollision
sub 1
ret z
and a
ret
; 185d
GetTileCollision: ; 185d
; Get the collision type of tile a.
push de
push hl
ld hl, TileCollisionTable
ld e, a
ld d, 0
add hl, de
ld a, [hROMBank]
push af
ld a, BANK(TileCollisionTable)
rst Bankswitch
ld e, [hl]
pop af
rst Bankswitch
ld a, e
and $f ; lo nybble only
pop hl
pop de
ret
; 1875
Function1875: ; 1875
ld d, a
and $f0
cp $10
jr z, .asm_1882
cp $20
jr z, .asm_1888
scf
ret
.asm_1882
ld a, d
and 7
ret z
scf
ret
.asm_1888
ld a, d
and 7
ret z
scf
ret
; 188e
Function188e: ; 188e
cp $14
ret z
cp $1c
ret
; 1894
CheckCutTreeTile: ; 1894
cp $12
ret z
cp $1a
ret
; 189a
CheckHeadbuttTreeTile: ; 189a
cp $15
ret z
cp $1d
ret
; 18a0
CheckCounterTile: ; 18a0
cp $90
ret z
cp $98
ret
; 18a6
CheckPitTile: ; 18a6
cp $60
ret z
cp $68
ret
; 18ac
CheckIceTile: ; 18ac
cp $23
ret z
cp $2b
ret z
scf
ret
; 18b4
CheckWhirlpoolTile: ; 18b4
nop
cp $24
ret z
cp $2c
ret z
scf
ret
; 18bd
CheckWaterfallTile: ; 18bd
cp $33
ret z
cp $3b
ret
; 18c3
CheckStandingOnEntrance: ; 18c3
ld a, [StandingTile]
cp $71 ; door
ret z
cp $79
ret z
cp $7a ; stairs
ret z
cp $7b ; cave
ret
; 18d2
GetMapObject: ; 18d2
; Return the location of map object a in bc.
ld hl, MapObjects
ld bc, $10
call AddNTimes
ld b, h
ld c, l
ret
; 18de
Function18de: ; 18de
ld [hConnectionStripLength], a
call GetMapObject
ld hl, $0000
add hl, bc
ld a, [hl]
cp $ff
jr z, .asm_18f3
ld [hConnectedMapWidth], a
call Function1ae5
and a
ret
.asm_18f3
scf
ret
; 18f5
Function18f5: ; 18f5
ld hl, $0006
add hl, bc
ld a, [hl]
cp $ff
jr nz, .asm_1921
ld hl, $0007
add hl, bc
ld a, [hl]
cp $ff
jr z, .asm_191c
ld hl, .data_191e
ld a, [TimeOfDay]
add l
ld l, a
jr nc, .asm_1912
inc h
.asm_1912
ld a, [hl]
ld hl, $0007
add hl, bc
and [hl]
jr nz, .asm_191c
scf
ret
.asm_191c
and a
ret
.data_191e
db $1
db $2
db $4
.asm_1921
ld hl, $0006
add hl, bc
ld d, [hl]
ld hl, $0007
add hl, bc
ld e, [hl]
ld hl, hHours
ld a, d
cp e
jr z, .asm_1949
jr c, .asm_193f
ld a, [hl]
cp d
jr nc, .asm_1949
cp e
jr c, .asm_1949
jr z, .asm_1949
jr .asm_194b
.asm_193f
ld a, e
cp [hl]
jr c, .asm_194b
ld a, [hl]
cp d
jr nc, .asm_1949
jr .asm_194b
.asm_1949
and a
ret
.asm_194b
scf
ret
; 194d
Function194d: ; 194d
ld [hConnectionStripLength], a
call GetMapObject
call $40e7
ret
; 1956
Function1956: ; 1956
ld [hConnectionStripLength], a
call Function271e
ld a, [hConnectionStripLength]
call GetMapObject
2013-10-01 17:47:54 -07:00
callba Function80e7
ret
; 1967
Function1967: ; 1967
ld [hConnectionStripLength], a
call GetMapObject
ld hl, $0000
add hl, bc
ld a, [hl]
cp $ff
ret z
ld [hl], $ff
push af
call Function1985
pop af
call Function1ae5
callba Function4357
ret
; 1985
Function1985: ; 1985
ld hl, $d4cd
cp [hl]
jr z, .asm_1990
ld hl, $d4ce
cp [hl]
ret nz
.asm_1990
callba Function581f
ld a, $ff
ld [$d4cd], a
ld [$d4ce], a
ret
; 199f
Function199f: ; 199f
call Function1967
call Function2712
ret
; 19a6
Function19a6: ; 19a6
push hl
call GetMapObject
ld d, b
ld e, c
ld a, $ff
ld [de], a
inc de
pop hl
ld bc, $000f
call CopyBytes
ret
; 19b8
Function19b8: ; 19b8
call GetMapObject
ld hl, $0000
add hl, bc
ld a, [hl]
push af
ld [hl], $ff
inc hl
ld bc, $000f
xor a
call ByteFill
pop af
cp $ff
ret z
cp $d
ret nc
ld b, a
ld a, [$d4cd]
cp b
jr nz, .asm_19de
ld a, $ff
ld [$d4cd], a
.asm_19de
ld a, b
call Function1ae5
callba Function4357
ret
; 19e9
Function19e9: ; 19e9
ld [$c2e2], a
ld a, [hROMBank]
ld [$c2e3], a
ld a, l
ld [$c2e4], a
ld a, h
ld [$c2e5], a
ld a, [$c2e2]
call Function18de
ret c
ld hl, $0003
add hl, bc
ld [hl], $14
ld hl, $0009
add hl, bc
ld [hl], $0
ld hl, VramState
set 7, [hl]
and a
ret
; 1a13
Function1a13: ; 1a13
push bc
push de
ld hl, $d4d6
ld de, $0028
ld c, $d
.asm_1a1d
ld a, [hl]
and a
jr z, .asm_1a28
add hl, de
dec c
jr nz, .asm_1a1d
xor a
jr .asm_1a2c
.asm_1a28
ld a, $d
sub c
scf
.asm_1a2c
pop de
pop bc
ret
; 1a2f
Function1a2f: ; 1a2f
ld hl, $0003
add hl, bc
ld a, [hl]
cp $25
jr c, .asm_1a39
xor a
.asm_1a39
ld hl, Data4273
ld e, a
ld d, 0
add hl, de
add hl, de
add hl, de
add hl, de
add hl, de
add hl, de
ld a, [hl]
ret
; 1a47
Function1a47: ; 1a47
push bc
push de
ld e, a
ld d, 0
ld hl, Data4273 + 1
add hl, de
add hl, de
add hl, de
add hl, de
add hl, de
add hl, de
ld a, BANK(Data4273)
call GetFarByte
add a
add a
and $c
pop de
pop bc
ret
; 1a61
Function1a61: ; 1a61
ld l, a
ld a, [hROMBank]
push af
ld a, BANK(Data4273)
rst Bankswitch
ld a, l
push bc
call Function1a71
pop bc
pop af
rst Bankswitch
ret
; 1a71
Function1a71: ; 1a71
ld hl, $0003
add hl, de
ld [hl], a
push de
ld e, a
ld d, 0
ld hl, Data4273 + 1
add hl, de
add hl, de
add hl, de
add hl, de
add hl, de
add hl, de
ld b, h
ld c, l
pop de
ld a, [bc]
inc bc
rlca
rlca
and $c
ld hl, $0008
add hl, de
ld [hl], a
ld a, [bc]
inc bc
ld hl, $000b
add hl, de
ld [hl], a
ld a, [bc]
inc bc
ld hl, $0004
add hl, de
ld [hl], a
ld a, [bc]
inc bc
ld hl, $0005
add hl, de
ld [hl], a
ld a, [bc]
inc bc
ld hl, $0006
add hl, de
ld [hl], a
ret
; 1aae
Function1aae: ; 1aae
ld a, [hROMBank]
push af
ld a, [hli]
rst Bankswitch
ld a, [hli]
ld d, [hl]
ld hl, $001b
add hl, bc
add [hl]
ld e, a
ld a, d
adc $0
ld d, a
inc [hl]
ld a, [de]
ld h, a
pop af
rst Bankswitch
ld a, h
ret
; 1ac6
Function1ac6: ; 1ac6
ld hl, VramState
set 0, [hl]
ret
; 1acc
Function1acc: ; 1acc
ld hl, VramState
res 0, [hl]
ret
; 1ad2
Function1ad2: ; 1ad2
ld a, [VramState]
bit 0, a
ret z
callba Function55e0
callba Function5920
ret
; 1ae5
Function1ae5: ; 1ae5
ld bc, $0028
ld hl, $d4d6
call AddNTimes
ld b, h
ld c, l
ret
; 1af1
Function1af1: ; 1af1
ld hl, $0000
add hl, bc
ld a, [hl]
and a
ret
; 1af8
Function1af8: ; 1af8
push af
ld hl, $0008
add hl, bc
ld a, [hl]
and $f3
ld e, a
pop af
and $c
or e
ld [hl], a
ret
; 1b07
GetSpriteDirection: ; 1b07
ld hl, $0008
add hl, bc
ld a, [hl]
and $c
ret
; 1b0f