pokecrystal-board/engine/overworld/tile_events.asm

102 lines
1.5 KiB
NASM

CheckWarpCollision::
; Is this tile a warp?
ld a, [wPlayerTileCollision]
cp COLL_PIT
jr z, .warp
cp COLL_PIT_68
jr z, .warp
and $f0
cp HI_NYBBLE_WARPS
jr z, .warp
and a
ret
.warp
scf
ret
CheckDirectionalWarp::
; If this is a directional warp, clear carry (press the designated button to warp).
; Else, set carry (immediate warp).
ld a, [wPlayerTileCollision]
cp COLL_WARP_CARPET_DOWN
jr z, .directional
cp COLL_WARP_CARPET_LEFT
jr z, .directional
cp COLL_WARP_CARPET_UP
jr z, .directional
cp COLL_WARP_CARPET_RIGHT
jr z, .directional
scf
ret
.directional
xor a
ret
CheckWarpFacingDown:
ld de, 1
ld hl, .blocks
ld a, [wPlayerTileCollision]
call IsInArray
ret
.blocks
db COLL_DOOR
db COLL_DOOR_79
db COLL_STAIRCASE
db COLL_STAIRCASE_73
db COLL_CAVE
db COLL_CAVE_74
db COLL_WARP_PANEL
db COLL_DOOR_75
db COLL_DOOR_7D
db -1
CheckGrassCollision::
ld a, [wPlayerTileCollision]
ld hl, .blocks
ld de, 1
call IsInArray
ret
.blocks
db COLL_CUT_08
db COLL_TALL_GRASS
db COLL_LONG_GRASS
db COLL_CUT_28
db COLL_WATER
db COLL_GRASS_48
db COLL_GRASS_49
db COLL_GRASS_4A
db COLL_GRASS_4B
db COLL_GRASS_4C
db -1
CheckCutCollision:
ld a, c
ld hl, .blocks
ld de, 1
call IsInArray
ret
.blocks
db COLL_CUT_TREE
db COLL_CUT_TREE_1A
db COLL_TALL_GRASS_10
db COLL_TALL_GRASS
db COLL_LONG_GRASS
db COLL_LONG_GRASS_1C
db -1
GetWarpSFX::
ld a, [wPlayerTileCollision]
ld de, SFX_ENTER_DOOR
cp COLL_DOOR
ret z
ld de, SFX_WARP_TO
cp COLL_WARP_PANEL
ret z
ld de, SFX_EXIT_BUILDING
ret