mirror of
https://gitlab.com/xCrystal/pokecrystal-board.git
synced 2024-11-16 11:27:33 -08:00
272 lines
4.0 KiB
NASM
Executable File
272 lines
4.0 KiB
NASM
Executable File
_HandlePlayerStep:: ; d497 (3:5497)
|
|
ld a, [wPlayerStepFlags]
|
|
and a
|
|
ret z
|
|
bit 7, a ; starting step
|
|
jr nz, .update_overworld_map
|
|
bit 6, a ; finishing step
|
|
jr nz, .update_player_coords
|
|
bit 5, a ; ongoing step
|
|
jr nz, .finish
|
|
ret
|
|
|
|
.update_overworld_map
|
|
ld a, 4
|
|
ld [wHandlePlayerStep], a
|
|
call UpdateOverworldMap
|
|
jr .finish
|
|
|
|
.update_player_coords
|
|
call UpdatePlayerCoords
|
|
jr .finish
|
|
|
|
.finish
|
|
call HandlePlayerStep
|
|
ld a, [wPlayerStepVectorX]
|
|
ld d, a
|
|
ld a, [wPlayerStepVectorY]
|
|
ld e, a
|
|
ld a, [wFollowNotExactPersonX]
|
|
sub d
|
|
ld [wFollowNotExactPersonX], a
|
|
ld a, [wFollowNotExactPersonY]
|
|
sub e
|
|
ld [wFollowNotExactPersonY], a
|
|
ret
|
|
|
|
ScrollScreen:: ; d4d2 (3:54d2)
|
|
ld a, [wPlayerStepVectorX]
|
|
ld d, a
|
|
ld a, [wPlayerStepVectorY]
|
|
ld e, a
|
|
ld a, [hSCX]
|
|
add d
|
|
ld [hSCX], a
|
|
ld a, [hSCY]
|
|
add e
|
|
ld [hSCY], a
|
|
ret
|
|
|
|
HandlePlayerStep: ; d4e5 (3:54e5)
|
|
ld hl, wHandlePlayerStep
|
|
ld a, [hl]
|
|
and a
|
|
ret z
|
|
dec [hl]
|
|
ld a, [hl]
|
|
ld hl, .Jumptable
|
|
rst JumpTable
|
|
ret
|
|
|
|
.Jumptable: ; d4f2 (3:54f2)
|
|
|
|
dw GetMovementPermissions
|
|
dw BufferScreen
|
|
dw .mobile
|
|
dw .fail2
|
|
; The rest are never used. Ever.
|
|
dw .fail1
|
|
dw .fail1
|
|
dw .fail1
|
|
dw .fail1
|
|
dw .fail1
|
|
dw .fail1
|
|
dw .fail1
|
|
|
|
.fail1 ; d508 (3:5508)
|
|
ret
|
|
|
|
.mobile ; d509 (3:5509)
|
|
callba MobileFn_10602e
|
|
ret
|
|
|
|
.fail2 ; d510 (3:5510)
|
|
ret
|
|
|
|
UpdatePlayerCoords: ; d511 (3:5511)
|
|
ld a, [wPlayerStepDirection]
|
|
and a
|
|
jr nz, .check_step_down
|
|
ld hl, YCoord
|
|
inc [hl]
|
|
ret
|
|
|
|
.check_step_down
|
|
cp UP
|
|
jr nz, .check_step_left
|
|
ld hl, YCoord
|
|
dec [hl]
|
|
ret
|
|
|
|
.check_step_left
|
|
cp LEFT
|
|
jr nz, .check_step_right
|
|
ld hl, XCoord
|
|
dec [hl]
|
|
ret
|
|
|
|
.check_step_right
|
|
cp RIGHT
|
|
ret nz
|
|
ld hl, XCoord
|
|
inc [hl]
|
|
ret
|
|
|
|
UpdateOverworldMap: ; d536 (3:5536)
|
|
ld a, [wPlayerStepDirection]
|
|
and a
|
|
jr z, .step_down
|
|
cp UP
|
|
jr z, .step_up
|
|
cp LEFT
|
|
jr z, .step_left
|
|
cp RIGHT
|
|
jr z, .step_right
|
|
ret
|
|
|
|
.step_down
|
|
call .ScrollOverworldMapDown
|
|
call LoadMapPart
|
|
call ScrollMapUp
|
|
ret
|
|
|
|
.step_up
|
|
call .ScrollOverworldMapUp
|
|
call LoadMapPart
|
|
call ScrollMapDown
|
|
ret
|
|
|
|
.step_left
|
|
call .ScrollOverworldMapLeft
|
|
call LoadMapPart
|
|
call ScrollMapRight
|
|
ret
|
|
|
|
.step_right
|
|
call .ScrollOverworldMapRight
|
|
call LoadMapPart
|
|
call ScrollMapLeft
|
|
ret
|
|
|
|
.ScrollOverworldMapDown: ; d571 (3:5571)
|
|
ld a, [wBGMapAnchor]
|
|
add 2 * BG_MAP_WIDTH
|
|
ld [wBGMapAnchor], a
|
|
jr nc, .not_overflowed
|
|
ld a, [wBGMapAnchor + 1]
|
|
inc a
|
|
and $3
|
|
or VBGMap0 / $100
|
|
ld [wBGMapAnchor + 1], a
|
|
.not_overflowed
|
|
ld hl, wMetatileStandingY
|
|
inc [hl]
|
|
ld a, [hl]
|
|
cp 2 ; was 1
|
|
jr nz, .done_down
|
|
ld [hl], 0
|
|
call .Add6ToOverworldMapAnchor
|
|
.done_down
|
|
ret
|
|
|
|
.Add6ToOverworldMapAnchor: ; d595 (3:5595)
|
|
ld hl, wOverworldMapAnchor
|
|
ld a, [MapWidth]
|
|
add 6
|
|
add [hl]
|
|
ld [hli], a
|
|
ret nc
|
|
inc [hl]
|
|
ret
|
|
|
|
.ScrollOverworldMapUp: ; d5a2 (3:55a2)
|
|
ld a, [wBGMapAnchor]
|
|
sub 2 * BG_MAP_WIDTH
|
|
ld [wBGMapAnchor], a
|
|
jr nc, .not_underflowed
|
|
ld a, [wBGMapAnchor + 1]
|
|
dec a
|
|
and $3
|
|
or VBGMap0 / $100
|
|
ld [wBGMapAnchor + 1], a
|
|
.not_underflowed
|
|
ld hl, wMetatileStandingY
|
|
dec [hl]
|
|
ld a, [hl]
|
|
cp -1 ; was 0
|
|
jr nz, .done_up
|
|
ld [hl], $1
|
|
call .Sub6FromOverworldMapAnchor
|
|
.done_up
|
|
ret
|
|
|
|
.Sub6FromOverworldMapAnchor: ; d5c6 (3:55c6)
|
|
ld hl, wOverworldMapAnchor
|
|
ld a, [MapWidth]
|
|
add 6
|
|
ld b, a
|
|
ld a, [hl]
|
|
sub b
|
|
ld [hli], a
|
|
ret nc
|
|
dec [hl]
|
|
ret
|
|
|
|
.ScrollOverworldMapLeft: ; d5d5 (3:55d5)
|
|
ld a, [wBGMapAnchor]
|
|
ld e, a
|
|
and $e0
|
|
ld d, a
|
|
ld a, e
|
|
sub $2
|
|
and $1f
|
|
or d
|
|
ld [wBGMapAnchor], a
|
|
ld hl, wMetatileStandingX
|
|
dec [hl]
|
|
ld a, [hl]
|
|
cp -1
|
|
jr nz, .done_left
|
|
ld [hl], 1
|
|
call .DecrementwOverworldMapAnchor
|
|
.done_left
|
|
ret
|
|
|
|
.DecrementwOverworldMapAnchor: ; d5f4 (3:55f4)
|
|
ld hl, wOverworldMapAnchor
|
|
ld a, [hl]
|
|
sub 1
|
|
ld [hli], a
|
|
ret nc
|
|
dec [hl]
|
|
ret
|
|
|
|
.ScrollOverworldMapRight: ; d5fe (3:55fe)
|
|
ld a, [wBGMapAnchor]
|
|
ld e, a
|
|
and $e0
|
|
ld d, a
|
|
ld a, e
|
|
add $2
|
|
and $1f
|
|
or d
|
|
ld [wBGMapAnchor], a
|
|
ld hl, wMetatileStandingX
|
|
inc [hl]
|
|
ld a, [hl]
|
|
cp 2
|
|
jr nz, .done_right
|
|
ld [hl], 0
|
|
call .IncrementwOverworldMapAnchor
|
|
.done_right
|
|
ret
|
|
|
|
.IncrementwOverworldMapAnchor: ; d61d (3:561d)
|
|
ld hl, wOverworldMapAnchor
|
|
ld a, [hl]
|
|
add 1
|
|
ld [hli], a
|
|
ret nc
|
|
inc [hl]
|
|
ret
|