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42e609cb48
pokegold/engine/map_objects.asm
pikalaxalt 42e609cb48 Another chunk of engine/map_objects.asm
2016-06-18 15:29:18 -04:00

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NASM
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INCLUDE "engine/facings.asm"
SpriteMovementData:: INCLUDE "data/map_objects.asm"
DeleteMapObject:: ; 4358 (1:4358)
push bc
ld hl, $1
add hl, bc
ld a, [hl]
push af
ld h, b
ld l, c
ld bc, $28
xor a
call ByteFill
pop af
cp $ff
jr z, .asm_437a
bit 7, a
jr nz, .asm_437a
call GetMapObject
ld hl, $0
add hl, bc
ld [hl], $ff
.asm_437a
pop bc
ret
Function4442:
call .CheckObjectStillVisible
ret c
call .HandleStepType
call .HandleObjectAction
ret
.CheckObjectStillVisible: ; 4387 (1:4387)
ld hl, $5
add hl, bc
res 6, [hl]
ld a, [wda03]
ld e, a
ld hl, $10
add hl, bc
ld a, [hl]
add $1
sub e
jr c, .asm_43b3
cp $c
jr nc, .asm_43b3
ld a, [wda02]
ld e, a
ld hl, $11
add hl, bc
ld a, [hl]
add $1
sub e
jr c, .asm_43b3
cp $b
jr nc, .asm_43b3
jr .asm_43dd
.asm_43b3
ld hl, $5
add hl, bc
set 6, [hl]
ld a, [wda03]
ld e, a
ld hl, $14
add hl, bc
ld a, [hl]
add $1
sub e
jr c, .asm_43df
cp $c
jr nc, .asm_43df
ld a, [wda02]
ld e, a
ld hl, $15
add hl, bc
ld a, [hl]
add $1
sub e
jr c, .asm_43df
cp $b
jr nc, .asm_43df
.asm_43dd
and a
ret
.asm_43df
ld hl, $4
add hl, bc
bit 1, [hl]
jr nz, .asm_43ec
call DeleteMapObject
scf
ret
.asm_43ec
ld hl, $5
add hl, bc
set 6, [hl]
and a
ret
.HandleStepType: ; 43f4 (1:43f4)
ld hl, $9
add hl, bc
ld a, [hl]
and a
jr z, .asm_440a
ld hl, $5
add hl, bc
bit 5, [hl]
jr nz, .asm_4427
cp $1
jr z, .asm_4415
jr .asm_4422
.asm_440a
call ObjectMovementReset
ld hl, $5
add hl, bc
bit 5, [hl]
jr nz, .asm_4427
.asm_4415
call MapObjectMovementPattern
ld hl, $9
add hl, bc
ld a, [hl]
and a
ret z
cp $1
ret z
.asm_4422
ld hl, StepTypesJumptable
rst JumpTable
ret
.asm_4427
ret
.HandleObjectAction: ; 4428 (1:4428)
ld hl, $4
add hl, bc
bit 0, [hl]
jr nz, Function44a0
ld hl, $5
add hl, bc
bit 6, [hl]
jr nz, Function44a0
bit 5, [hl]
jr nz, asm_4449
ld de, Pointers4460
jr asm_444e
Function4441:
ld hl, $4
add hl, bc
bit 0, [hl]
jr nz, Function44a0
asm_4449
ld de, Pointers4460 + 2
jr asm_444e
asm_444e
INCLUDE "engine/map_object_action.asm"
CopyNextCoordsTileToStandingCoordsTile: ; 45d9 (1:45d9)
ld hl, $10
add hl, bc
ld a, [hl]
ld hl, $12
add hl, bc
ld [hl], a
ld hl, $11
add hl, bc
ld a, [hl]
ld hl, $13
add hl, bc
ld [hl], a
ld hl, $e
add hl, bc
ld a, [hl]
ld hl, $f
add hl, bc
ld [hl], a
call SetGrassPriority
ld hl, $e
add hl, bc
ld a, [hl]
call UselessAndA
ret
Function4603:
ld hl, $12
add hl, bc
ld a, [hl]
ld hl, $10
add hl, bc
ld [hl], a
ld hl, $13
add hl, bc
ld a, [hl]
ld hl, $11
add hl, bc
ld [hl], a
ret
UpdateGrassPriority:
ld hl, $5
add hl, bc
bit 3, [hl]
jr z, .asm_4628
ld hl, $e
add hl, bc
ld a, [hl]
call SetGrassPriority
.asm_4628
ld hl, $e
add hl, bc
ld a, [hl]
call UselessAndA
ret c
ld hl, $f
add hl, bc
ld a, [hl]
call UselessAndA
ret
SetGrassPriority: ; 463a (1:463a)
call CheckSuperTallGrassTile
jr z, .asm_4644
call CheckGrassTile
jr c, .asm_464b
.asm_4644
ld hl, $5
add hl, bc
set 3, [hl]
ret
.asm_464b
ld hl, $5
add hl, bc
res 3, [hl]
ret
UselessAndA: ; 4652 (1:4652)
and a
ret
EndSpriteMovement:
xor a
ld hl, $c
add hl, bc
ld [hl], a
ld hl, $1b
add hl, bc
ld [hli], a
ld [hli], a
ld [hli], a
ld [hl], a
ld hl, $7
add hl, bc
ld [hl], $ff
ret
InitStep:
ld hl, $7
add hl, bc
ld [hl], a
ld hl, $4
add hl, bc
bit 2, [hl]
jr nz, GetNextTile
add a
add a
and $c
ld hl, $8
add hl, bc
ld [hl], a
GetNextTile:
call GetStepVector
ld hl, $a
add hl, bc
ld [hl], a
ld a, d
call GetStepVectorSign
ld hl, $12
add hl, bc
add [hl]
ld hl, $10
add hl, bc
ld [hl], a
ld d, a
ld a, e
call GetStepVectorSign
ld hl, $13
add hl, bc
add [hl]
ld hl, $11
add hl, bc
ld [hl], a
ld e, a
push bc
call GetCoordTile
pop bc
ld hl, $e
add hl, bc
ld [hl], a
ret
AddStepVector: ; 46b0 (1:46b0)
call GetStepVector
ld hl, $17
add hl, bc
ld a, [hl]
add d
ld [hl], a
ld hl, $18
add hl, bc
ld a, [hl]
add e
ld [hl], a
ret
GetStepVector: ; 46c2 (1:46c2)
ld hl, $7
add hl, bc
ld a, [hl]
and $f
add a
add a
ld l, a
ld h, $0
ld de, StepVectors
add hl, de
ld d, [hl]
inc hl
ld e, [hl]
inc hl
ld a, [hli]
ld h, [hl]
ret
StepVectors: ; 46d9
; x, y, duration, speed
; slow
db 0, 1, 16, 1
db 0, -1, 16, 1
db -1, 0, 16, 1
db 1, 0, 16, 1
; normal
db 0, 2, 8, 2
db 0, -2, 8, 2
db -2, 0, 8, 2
db 2, 0, 8, 2
; fast
db 0, 4, 4, 4
db 0, -4, 4, 4
db -4, 0, 4, 4
db 4, 0, 4, 4
GetStepVectorSign: ; 4709 (1:4709)
add a
ret z
ld a, $1
ret nc
ld a, $ff
ret
UpdatePlayerStep:
ld hl, $7
add hl, bc
ld a, [hl]
and $3
ld [wPlayerStepDirection], a
call AddStepVector
ld a, [wPlayerStepVectorX]
add d
ld [wPlayerStepVectorX], a
ld a, [wPlayerStepVectorY]
add e
ld [wPlayerStepVectorY], a
ld hl, wPlayerStepFlags
set 5, [hl]
ret
Function4732:
push bc
ld e, a
ld d, $0
ld hl, $1
add hl, bc
ld a, [hl]
call GetMapObject
add hl, de
ld a, [hl]
pop bc
ret
RestoreDefaultMovement:
ld hl, $1
add hl, bc
ld a, [hl]
cp $ff
jr z, .asm_4756
push bc
call GetMapObject
ld hl, $4
add hl, bc
ld a, [hl]
pop bc
ret
.asm_4756
ld a, $6
ret
ClearObjectMovementByteIndex:
ld hl, $1b
add hl, bc
ld [hl], $0
ret
IncrementObjectMovementByteIndex:
ld hl, $1b
add hl, bc
inc [hl]
ret
DecrementObjectMovementByteIndex:
ld hl, $1b
add hl, bc
dec [hl]
ret
MovementAnonymousJumptable:
ld hl, $1b
add hl, bc
ld a, [hl]
pop hl
rst JumpTable
ret
ClearObjectStructField28:
ld hl, $1c
add hl, bc
ld [hl], $0
ret
IncrementObjectStructField28:
ld hl, $1c
add hl, bc
inc [hl]
ret
Object28AnonymousJumptable:
ld hl, $1c
add hl, bc
ld a, [hl]
pop hl
rst JumpTable
ret
GetValueObjectStructField28:
ld hl, $1c
add hl, bc
ld a, [hl]
ret
SetValueObjectStructField28:
ld hl, $1c
add hl, bc
ld [hl], a
ret
ObjectMovementReset: ; 4795 (1:4795)
ld hl, $10
add hl, bc
ld d, [hl]
ld hl, $11
add hl, bc
ld e, [hl]
push bc
call GetCoordTile
pop bc
ld hl, $e
add hl, bc
ld [hl], a
call CopyNextCoordsTileToStandingCoordsTile
call EndSpriteMovement
ld hl, $9
add hl, bc
ld [hl], $1
ret
MapObjectMovementPattern: ; 47b6 (1:47b6)
call ClearObjectStructField28
call GetSpriteMovementFunction
ld a, [hl]
ld hl, .Pointers
rst JumpTable
ret
.Pointers:
dw Function47fa
dw Function47fb
dw Function4805
dw Function4811
dw Function481b
dw Function482a
dw Function4842
dw Function4855
dw Function485b
dw Function4861
dw Function4867
dw Function486a
dw Function486d
dw Function4870
dw Function4876
dw Function4879
dw Function487f
dw Function4885
dw Function48d8
dw Function49be
dw Function49fa
dw Function4931
dw Function4947
dw Function4a95
dw Function4966
dw Function495d
dw Function4a1f
dw Function4a62
Function47fa:
ret
Function47fb: ; 47fb (1:47fb)
call Random
ld a, [hRandom]
and $1
jp Function4ac9
Function4805: ; 4805 (1:4805)
call Random
ld a, [hRandom]
and $1
or $2
jp Function4ac9
Function4811: ; 4811 (1:4811)
call Random
ld a, [hRandom]
and $3
jp Function4ac9
Function481b: ; 481b (1:481b)
call Random
ld a, [hRandom]
and $c
ld hl, $8
add hl, bc
ld [hl], a
jp Function4af6
Function482a: ; 482a (1:482a)
ld hl, $8
add hl, bc
ld a, [hl]
and $c
ld d, a
call Random
ld a, [hRandom]
and $c
cp d
jr nz, .asm_483e
xor $c
.asm_483e
ld [hl], a
jp Function4aff
Function4842: ; 4842 (1:4842)
call Function4603
call EndSpriteMovement
ld hl, $b
add hl, bc
ld [hl], $1
ld hl, $9
add hl, bc
ld [hl], $5
ret
Function4855: ; 4855 (1:4855)
ld hl, $4fa8
jp Function4fe9
Function485b: ; 485b (1:485b)
ld hl, $4fbd
jp Function4fe9
Function4861: ; 4861 (1:4861)
ld hl, $4fce
jp Function4fe9
Function4867: ; 4867 (1:4867)
jp Function4fdf
Function486a: ; 486a (1:486a)
jp Function4fdf
Function486d: ; 486d (1:486d)
jp Function4fdf
Function4870: ; 4870 (1:4870)
ld hl, $4fa8
jp Function4fe9
Function4876: ; 4876 (1:4876)
jp Function4fdf
Function4879: ; 4879 (1:4879)
ld hl, $5485
jp Function4fe9
Function487f: ; 487f (1:487f)
ld hl, $4fb6
jp Function4fe9
Function4885: ; 4885 (1:4885)
call MovementAnonymousJumptable
dw .asm_488c
dw .asm_48d1
.asm_488c
ld hl, $e
add hl, bc
ld a, [hl]
call CheckPitTile
jr z, .asm_48ce
ld hl, $5
add hl, bc
bit 2, [hl]
res 2, [hl]
jr z, .asm_48c7
ld hl, $20
add hl, bc
ld a, [hl]
and $3
or $0
call InitStep
call CheckNPCMovementPermissions
jr c, .asm_48c4
ld de, $1b
call PlaySFX
call Function54d7
call UpdateGrassPriority
ld hl, $9
add hl, bc
ld [hl], $f
ret
.asm_48c4
call Function4603
.asm_48c7
ld hl, $7
add hl, bc
ld [hl], $ff
ret
.asm_48ce
call IncrementObjectMovementByteIndex
.asm_48d1
ld hl, $7
add hl, bc
ld [hl], $ff
ret
Function48d8: ; 48d8 (1:48d8)
ld hl, $10
add hl, bc
ld d, [hl]
ld hl, $11
add hl, bc
ld e, [hl]
ld hl, $20
add hl, bc
ld a, [hl]
push bc
call GetObjectStruct
ld hl, $7
add hl, bc
ld a, [hl]
cp $ff
jr z, .asm_4923
ld hl, $12
add hl, bc
ld a, [hl]
cp d
jr z, .asm_4906
jr c, .asm_4902
ld a, $3
jr .asm_4916
.asm_4902
ld a, $2
jr .asm_4916
.asm_4906
ld hl, $13
add hl, bc
ld a, [hl]
cp e
jr z, .asm_4923
jr c, .asm_4914
ld a, $0
jr .asm_4916
.asm_4914
ld a, $1
.asm_4916
ld d, a
ld hl, $7
add hl, bc
ld a, [hl]
and $c
or d
pop bc
jp Function53b1
.asm_4923
pop bc
ld hl, $7
add hl, bc
ld [hl], $ff
ld hl, $b
add hl, bc
ld [hl], $1
ret
Function4931: ; 4931 (1:4931)
call EndSpriteMovement
ld hl, $7
add hl, bc
ld [hl], $ff
ld hl, $b
add hl, bc
ld [hl], $9
ld hl, $9
add hl, bc
ld [hl], $4
ret
Function4947: ; 4947 (1:4947)
call EndSpriteMovement
ld hl, $7
add hl, bc
ld [hl], $ff
ld hl, $b
add hl, bc
ld [hl], $a
ld hl, $9
add hl, bc
ld [hl], $4
ret
Function495d: ; 495d (1:495d)
call MovementAnonymousJumptable
dw Function496f
dw Function4975
dw Function4991
Function4966: ; 4966 (1:4966)
call MovementAnonymousJumptable
dw Function496f
dw Function4975
dw Function499d
Function496f:
call EndSpriteMovement
call IncrementObjectMovementByteIndex
Function4975:
ld hl, $b
add hl, bc
ld [hl], $1
ld hl, $20
add hl, bc
ld a, [hl]
ld a, $10
ld hl, $a
add hl, bc
ld [hl], a
ld hl, $9
add hl, bc
ld [hl], $3
call IncrementObjectMovementByteIndex
ret
Function4991:
ld de, .data
call Function49a9
jr Function495d
.data
db OW_RIGHT, OW_LEFT, OW_DOWN, OW_UP
Function499d:
ld de, .data
call Function49a9
jr Function4966
.data
db OW_LEFT, OW_RIGHT, OW_UP, OW_DOWN
Function49a9: ; 49a9 (1:49a9)
ld hl, $8
add hl, bc
ld a, [hl]
and $c
rrca
rrca
push hl
ld l, a
ld h, $0
add hl, de
ld a, [hl]
pop hl
ld [hl], a
call DecrementObjectMovementByteIndex
ret
Function49be: ; 49be (1:49be)
call Function4a81
ld hl, $b
add hl, bc
ld [hl], $7
ld hl, $a
add hl, de
ld a, [hl]
inc a
add a
add $0
ld hl, $a
add hl, bc
ld [hl], a
ld hl, $7
add hl, de
ld a, [hl]
and $3
ld d, $e
cp $0
jr z, .asm_49e8
cp $1
jr z, .asm_49e8
ld d, $c
.asm_49e8
ld hl, $1a
add hl, bc
ld [hl], d
ld hl, $19
add hl, bc
ld [hl], $0
ld hl, $9
add hl, bc
ld [hl], $13
ret
Function49fa: ; 49fa (1:49fa)
call EndSpriteMovement
call Function4a81
ld hl, $b
add hl, bc
ld [hl], $8
ld hl, $a
add hl, bc
ld [hl], $0
ld hl, $1a
add hl, bc
ld [hl], $f0
ld hl, $19
add hl, bc
ld [hl], $0
ld hl, $9
add hl, bc
ld [hl], $13
ret
Function4a1f: ; 4a1f (1:4a1f)
call EndSpriteMovement
call Function4a81
ld hl, $b
add hl, bc
ld [hl], $e
ld hl, $a
add hl, de
ld a, [hl]
inc a
add a
ld hl, $a
add hl, bc
ld [hl], a
ld hl, $7
add hl, de
ld a, [hl]
and $3
ld e, a
ld d, $0
ld hl, .data
add hl, de
add hl, de
ld d, [hl]
inc hl
ld e, [hl]
ld hl, $19
add hl, bc
ld [hl], d
ld hl, $1a
add hl, bc
ld [hl], e
ld hl, $9
add hl, bc
ld [hl], $13
ret
.data
; x, y
db 0, -4
db 0, 8
db 6, 2
db -6, 2
Function4a62: ; 4a62 (1:4a62)
call EndSpriteMovement
call Function4a81
ld hl, $b
add hl, bc
ld [hl], $f
ld hl, $a
add hl, de
ld a, [hl]
add $ff
ld hl, $a
add hl, bc
ld [hl], a
ld hl, $9
add hl, bc
ld [hl], $13
ret
Function4a81: ; 4a81 (1:4a81)
ld hl, $20
add hl, bc
ld a, [hl]
push bc
call GetObjectStruct
ld d, b
ld e, c
pop bc
ld hl, $1d
add hl, bc
ld [hl], e
inc hl
ld [hl], d
ret
Function4a95: ; 4a95 (1:4a95)
call EndSpriteMovement
ld hl, $b
add hl, bc
ld [hl], $0
ld hl, $20
add hl, bc
ld a, [hl]
call Function4ab7
ld hl, $a
add hl, bc
ld [hl], e
ld hl, $1e
add hl, bc
ld [hl], a
ld hl, $9
add hl, bc
ld [hl], $15
ret
Function4ab7: ; 4ab7 (1:4ab7)
ld d, a
and $3f
ld e, a
ld a, d
rlca
rlca
and $3
ld d, a
inc d
ld a, $1
.asm_4ac4
dec d
ret z
add a
jr .asm_4ac4
Function4ac9: ; 4ac9 (1:4ac9)
call InitStep
call CheckNPCMovementPermissions
jr c, .asm_4af0
call UpdateGrassPriority
ld hl, $b
add hl, bc
ld [hl], $2
ld hl, wCenteredObject
ld a, [hConnectionStripLength]
cp [hl]
jr z, .asm_4ae9
ld hl, $9
add hl, bc
ld [hl], $7
ret
.asm_4ae9
ld hl, $9
add hl, bc
ld [hl], $6
ret
.asm_4af0
call EndSpriteMovement
call Function4603
Function4af6: ; 4af6 (1:4af6)
call Random
ld a, [hRandom]
and $7f
jr asm_4b06
Function4aff: ; 4aff (1:4aff)
call Random
ld a, [hRandomAdd]
and $1f
asm_4b06
ld hl, $a
add hl, bc
ld [hl], a
ld hl, $7
add hl, bc
ld [hl], $ff
ld hl, $b
add hl, bc
ld [hl], $1
ld hl, $9
add hl, bc
ld [hl], $3
ret
StepTypesJumptable: ; 4b1e
dr $4b1e, $4fdf
Function4fdf:
dr $4fdf, $4fe9
Function4fe9:
dr $4fe9, $53b1
Function53b1:
dr $53b1, $54d7
Function54d7:
dr $54d7, $557f
Function557f::
dr $557f, $5730
Function5730::
dr $5730, $5795
StopFollow::
dr $5795, $5896
UpdateSprites_::
dr $5896, $58c5
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