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31cce83e9b
pokecrystal-board/engine/map_objects.asm
Remy Oukaour 31cce83e9b Move lots of data tables into individual data/ files 
(This is not expected to be their final location, but it makes them easier to relocate when necessary, and easier for users to edit until the whole project's file structure is finalized.)
2017-12-11 14:23:18 -05:00

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INCLUDE "data/facings.asm"
SpriteMovementData:: ; 4273
INCLUDE "data/map_objects.asm"
; 4357
DeleteMapObject:: ; 4357
push bc
ld hl, OBJECT_MAP_OBJECT_INDEX
add hl, bc
ld a, [hl]
push af
ld h, b
ld l, c
ld bc, OBJECT_STRUCT_LENGTH
xor a
call ByteFill
pop af
cp -1
jr z, .ok
bit 7, a
jr nz, .ok
call GetMapObject
ld hl, OBJECT_SPRITE
add hl, bc
ld [hl], -1
.ok
pop bc
ret
; 437b
Function437b: ; 437b
call .CheckObjectStillVisible
ret c
call .HandleStepType
call .HandleObjectAction
ret
.CheckObjectStillVisible:
ld hl, OBJECT_FLAGS2
add hl, bc
res 6, [hl]
ld a, [XCoord]
ld e, a
ld hl, OBJECT_NEXT_MAP_X
add hl, bc
ld a, [hl]
add 1
sub e
jr c, .ok
cp MAPOBJECT_SCREEN_WIDTH
jr nc, .ok
ld a, [YCoord]
ld e, a
ld hl, OBJECT_NEXT_MAP_Y
add hl, bc
ld a, [hl]
add 1
sub e
jr c, .ok
cp MAPOBJECT_SCREEN_HEIGHT
jr nc, .ok
jr .yes
.ok
ld hl, OBJECT_FLAGS2
add hl, bc
set 6, [hl]
ld a, [XCoord]
ld e, a
ld hl, OBJECT_INIT_X
add hl, bc
ld a, [hl]
add 1
sub e
jr c, .ok2
cp MAPOBJECT_SCREEN_WIDTH
jr nc, .ok2
ld a, [YCoord]
ld e, a
ld hl, OBJECT_INIT_Y
add hl, bc
ld a, [hl]
add 1
sub e
jr c, .ok2
cp MAPOBJECT_SCREEN_HEIGHT
jr nc, .ok2
.yes
and a
ret
.ok2
ld hl, OBJECT_FLAGS1
add hl, bc
bit 1, [hl]
jr nz, .yes2
call DeleteMapObject
scf
ret
.yes2
ld hl, OBJECT_FLAGS2
add hl, bc
set 6, [hl]
and a
ret
.HandleStepType:
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld a, [hl]
and a
jr z, .zero
ld hl, OBJECT_FLAGS2
add hl, bc
bit 5, [hl]
jr nz, .bit5
cp STEP_TYPE_SLEEP
jr z, .one
jr .ok3
.zero
call ObjectMovementReset
ld hl, OBJECT_FLAGS2
add hl, bc
bit 5, [hl]
jr nz, .bit5
.one
call MapObjectMovementPattern
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld a, [hl]
and a
ret z
cp STEP_TYPE_SLEEP
ret z
.ok3
ld hl, StepTypesJumptable
rst JumpTable
ret
.bit5
ret
.HandleObjectAction:
ld hl, OBJECT_FLAGS1
add hl, bc
bit INVISIBLE, [hl]
jr nz, SetFacingStanding
ld hl, OBJECT_FLAGS2
add hl, bc
bit 6, [hl]
jr nz, SetFacingStanding
bit 5, [hl]
jr nz, asm_4448
ld de, PersonActionPairPointers ; use first column
jr _HandleObjectAction
; 4440
Function4440: ; 4440
ld hl, OBJECT_FLAGS1
add hl, bc
bit INVISIBLE, [hl]
jr nz, SetFacingStanding
asm_4448
ld de, PersonActionPairPointers + 2 ; use second column
jr _HandleObjectAction
; 444d
_HandleObjectAction
; call [4 * ObjectStructs[ObjInd, OBJECT_ACTION] + de]
ld hl, OBJECT_ACTION
add hl, bc
ld a, [hl]
ld l, a
ld h, 0
add hl, hl
add hl, hl
add hl, de
ld a, [hli]
ld h, [hl]
ld l, a
call _hl_
ret
; 445f
INCLUDE "engine/map_object_action.asm"
CopyNextCoordsTileToStandingCoordsTile: ; 4600
ld hl, OBJECT_NEXT_MAP_X
add hl, bc
ld a, [hl]
ld hl, OBJECT_MAP_X
add hl, bc
ld [hl], a
ld hl, OBJECT_NEXT_MAP_Y
add hl, bc
ld a, [hl]
ld hl, OBJECT_MAP_Y
add hl, bc
ld [hl], a
ld hl, OBJECT_NEXT_TILE
add hl, bc
ld a, [hl]
ld hl, OBJECT_STANDING_TILE
add hl, bc
ld [hl], a
call SetTallGrassFlags
ld hl, OBJECT_NEXT_TILE
add hl, bc
ld a, [hl]
call UselessAndA
ret
; 462a
Function462a: ; 462a
ld hl, OBJECT_MAP_X
add hl, bc
ld a, [hl]
ld hl, OBJECT_NEXT_MAP_X
add hl, bc
ld [hl], a
ld hl, OBJECT_MAP_Y
add hl, bc
ld a, [hl]
ld hl, OBJECT_NEXT_MAP_Y
add hl, bc
ld [hl], a
ret
; 463f
UpdateTallGrassFlags: ; 463f
ld hl, OBJECT_FLAGS2
add hl, bc
bit 3, [hl] ; is current tile grass?
jr z, .ok
ld hl, OBJECT_NEXT_TILE
add hl, bc
ld a, [hl]
call SetTallGrassFlags
.ok
ld hl, OBJECT_NEXT_TILE
add hl, bc
ld a, [hl]
call UselessAndA
ret c ; never happens
ld hl, OBJECT_STANDING_TILE
add hl, bc
ld a, [hl]
call UselessAndA
ret
; 4661
SetTallGrassFlags: ; 4661
call CheckSuperTallGrassTile
jr z, .set
call CheckGrassTile
jr c, .reset
.set
ld hl, OBJECT_FLAGS2
add hl, bc
set 3, [hl]
ret
.reset
ld hl, OBJECT_FLAGS2
add hl, bc
res 3, [hl]
ret
; 4679
UselessAndA: ; 4679
and a
ret
; 467b
EndSpriteMovement: ; 467b
xor a
ld hl, OBJECT_STEP_FRAME
add hl, bc
ld [hl], a
ld hl, OBJECT_MOVEMENT_BYTE_INDEX
add hl, bc
ld [hli], a
ld [hli], a
ld [hli], a
ld [hl], a ; OBJECT_30
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ret
; 4690
InitStep: ; 4690
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], a
ld hl, OBJECT_FLAGS1
add hl, bc
bit FIXED_FACING, [hl]
jr nz, GetNextTile
add a
add a
and %00001100
ld hl, OBJECT_FACING
add hl, bc
ld [hl], a
GetNextTile: ; 46a6
call GetStepVector
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], a
ld a, d
call GetStepVectorSign
ld hl, OBJECT_MAP_X
add hl, bc
add [hl]
ld hl, OBJECT_NEXT_MAP_X
add hl, bc
ld [hl], a
ld d, a
ld a, e
call GetStepVectorSign
ld hl, OBJECT_MAP_Y
add hl, bc
add [hl]
ld hl, OBJECT_NEXT_MAP_Y
add hl, bc
ld [hl], a
ld e, a
push bc
call GetCoordTile
pop bc
ld hl, OBJECT_NEXT_TILE
add hl, bc
ld [hl], a
ret
; 46d7
AddStepVector: ; 46d7
call GetStepVector
ld hl, OBJECT_SPRITE_X
add hl, bc
ld a, [hl]
add d
ld [hl], a
ld hl, OBJECT_SPRITE_Y
add hl, bc
ld a, [hl]
add e
ld [hl], a
ret
; 46e9
GetStepVector: ; 46e9
; Return (x, y, duration, speed) in (d, e, a, h).
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld a, [hl]
and %00001111
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
; 4700
StepVectors: ; 4700
; 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
; 4730
GetStepVectorSign: ; 4730
add a
ret z ; 0 or 128
ld a, 1
ret nc ; 1 - 127
ld a, -1
ret ; 129 - 255
; 4738
UpdatePlayerStep: ; 4738
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld a, [hl]
and %00000011
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
; 4759
Function4759: ; 4759
; unreferenced
push bc
ld e, a
ld d, 0
ld hl, OBJECT_MAP_OBJECT_INDEX
add hl, bc
ld a, [hl]
call GetMapObject
add hl, de
ld a, [hl]
pop bc
ret
; 4769
RestoreDefaultMovement: ; 4769
ld hl, OBJECT_MAP_OBJECT_INDEX
add hl, bc
ld a, [hl]
cp -1
jr z, .ok
push bc
call GetMapObject
ld hl, MAPOBJECT_MOVEMENT
add hl, bc
ld a, [hl]
pop bc
ret
.ok
ld a, SPRITEMOVEFN_STANDING
ret
; 4780
ClearObjectMovementByteIndex: ; 4780
ld hl, OBJECT_MOVEMENT_BYTE_INDEX
add hl, bc
ld [hl], 0
ret
; 4787
IncrementObjectMovementByteIndex: ; 4787
ld hl, OBJECT_MOVEMENT_BYTE_INDEX
add hl, bc
inc [hl]
ret
; 478d
DecrementObjectMovementByteIndex: ; 478d
ld hl, OBJECT_MOVEMENT_BYTE_INDEX
add hl, bc
dec [hl]
ret
; 4793
MovementAnonymousJumptable: ; 4793
ld hl, OBJECT_MOVEMENT_BYTE_INDEX
add hl, bc
ld a, [hl]
pop hl
rst JumpTable
ret
; 479b
ClearObjectStructField28: ; 479b
ld hl, OBJECT_28
add hl, bc
ld [hl], 0
ret
; 47a2
IncrementObjectStructField28: ; 47a2
ld hl, OBJECT_28
add hl, bc
inc [hl]
ret
; 47a8
Object28AnonymousJumptable: ; 47a8
ld hl, OBJECT_28
add hl, bc
ld a, [hl]
pop hl
rst JumpTable
ret
; 47b0
GetValueObjectStructField28: ; 47b0
ld hl, OBJECT_28
add hl, bc
ld a, [hl]
ret
; 47b6
SetValueObjectStructField28: ; 47b6
ld hl, OBJECT_28
add hl, bc
ld [hl], a
ret
; 47bc
ObjectMovementReset: ; 47bc
ld hl, OBJECT_NEXT_MAP_X
add hl, bc
ld d, [hl]
ld hl, OBJECT_NEXT_MAP_Y
add hl, bc
ld e, [hl]
push bc
call GetCoordTile
pop bc
ld hl, OBJECT_NEXT_TILE
add hl, bc
ld [hl], a
call CopyNextCoordsTileToStandingCoordsTile
call EndSpriteMovement
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 47dd
MapObjectMovementPattern: ; 47dd
call ClearObjectStructField28
call GetSpriteMovementFunction
ld a, [hl]
ld hl, .Pointers
rst JumpTable
ret
.Pointers: ; 47e9
; entries correspond to SPRITEMOVEFN_* constants
dw .Null_00 ; 00
dw .RandomWalkY ; 01
dw .RandomWalkX ; 02
dw .RandomWalkXY ; 03
dw .RandomSpin1 ; 04
dw .RandomSpin2 ; 05
dw .Standing ; 06
dw .ObeyDPad ; 07
dw .Movement08 ; 08
dw .Movement09 ; 09
dw .Movement0a ; 0a
dw .Movement0b ; 0b
dw .Movement0c ; 0c
dw .Movement0d ; 0d
dw .Movement0e ; 0e
dw .Follow ; 0f
dw .Script ; 10
dw .Strength ; 11
dw .FollowNotExact ; 12
dw .MovementShadow ; 13
dw .MovementEmote ; 14
dw .MovementBigStanding ; 15
dw .MovementBouncing ; 16
dw .MovementScreenShake ; 17
dw .MovementSpinClockwise ; 18
dw .MovementSpinCounterclockwise ; 19
dw .MovementBoulderDust ; 1a
dw .MovementShakingGrass ; 1b
.Null_00:
ret
.RandomWalkY:
call Random
ld a, [hRandomAdd]
and %00000001
jp .RandomWalkContinue
.RandomWalkX:
call Random
ld a, [hRandomAdd]
and %00000001
or %00000010
jp .RandomWalkContinue
.RandomWalkXY:
call Random
ld a, [hRandomAdd]
and %00000011
jp .RandomWalkContinue
.RandomSpin1:
call Random
ld a, [hRandomAdd]
and %00001100
ld hl, OBJECT_FACING
add hl, bc
ld [hl], a
jp RandomStepDuration_Slow
.RandomSpin2:
ld hl, OBJECT_FACING
add hl, bc
ld a, [hl]
and %00001100
ld d, a
call Random
ld a, [hRandomAdd]
and %00001100
cp d
jr nz, .keep
xor %00001100
.keep
ld [hl], a
jp RandomStepDuration_Fast
.Standing:
call Function462a
call EndSpriteMovement
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_STAND
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_05
ret
.ObeyDPad:
ld hl, Function5000
jp HandleMovementData
.Movement08:
ld hl, Function5015
jp HandleMovementData
.Movement09:
ld hl, Function5026
jp HandleMovementData
.Movement0a:
jp _GetMovementPerson
.Movement0b:
jp _GetMovementPerson
.Movement0c:
jp _GetMovementPerson
.Movement0d:
ld hl, Function5000
jp HandleMovementData
.Movement0e:
jp _GetMovementPerson
.Follow:
ld hl, GetFollowerNextMovementByte
jp HandleMovementData
.Script:
ld hl, GetMovementByte
jp HandleMovementData
.Strength:
call MovementAnonymousJumptable
dw .Strength_Start
dw .Strength_Stop
.Strength_Start:
ld hl, OBJECT_NEXT_TILE
add hl, bc
ld a, [hl]
call CheckPitTile
jr z, .on_pit
ld hl, OBJECT_FLAGS2
add hl, bc
bit 2, [hl]
res 2, [hl]
jr z, .ok
ld hl, OBJECT_RANGE
add hl, bc
ld a, [hl]
and %00000011
or 0
call InitStep
call Function6ec1
jr c, .ok2
ld de, SFX_STRENGTH
call PlaySFX
call SpawnStrengthBoulderDust
call UpdateTallGrassFlags
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_0F
ret
.ok2
call Function462a
.ok
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ret
.on_pit
call IncrementObjectMovementByteIndex
.Strength_Stop:
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ret
.FollowNotExact:
ld hl, OBJECT_NEXT_MAP_X
add hl, bc
ld d, [hl]
ld hl, OBJECT_NEXT_MAP_Y
add hl, bc
ld e, [hl]
ld hl, OBJECT_RANGE
add hl, bc
ld a, [hl]
push bc
call GetObjectStruct
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld a, [hl]
cp STANDING
jr z, .standing
ld hl, OBJECT_MAP_X
add hl, bc
ld a, [hl]
cp d
jr z, .equal
jr c, .less
ld a, 3
jr .done
.less
ld a, 2
jr .done
.equal
ld hl, OBJECT_MAP_Y
add hl, bc
ld a, [hl]
cp e
jr z, .standing
jr c, .less2
ld a, 0
jr .done
.less2
ld a, 1
.done
ld d, a
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld a, [hl]
and %00001100
or d
pop bc
jp NormalStep
.standing
pop bc
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_STAND
ret
.MovementBigStanding:
call EndSpriteMovement
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_BIG_SNORLAX
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_04
ret
.MovementBouncing:
call EndSpriteMovement
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_BOUNCE
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_04
ret
.MovementSpinCounterclockwise:
call MovementAnonymousJumptable
dw .MovementSpinInit
dw .MovementSpinRepeat
dw .MovementSpinTurnLeft
.MovementSpinClockwise:
call MovementAnonymousJumptable
dw .MovementSpinInit
dw .MovementSpinRepeat
dw .MovementSpinTurnRight
.MovementSpinInit:
call EndSpriteMovement
call IncrementObjectMovementByteIndex
.MovementSpinRepeat:
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_STAND
ld hl, OBJECT_RANGE
add hl, bc
ld a, [hl]
ld a, $10
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], a
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_03
call IncrementObjectMovementByteIndex
ret
.MovementSpinTurnLeft:
ld de, .DirectionData_Counterclockwise
call .MovementSpinNextFacing
jr .MovementSpinCounterclockwise
.DirectionData_Counterclockwise: ; 49c0
db OW_RIGHT, OW_LEFT, OW_DOWN, OW_UP
.MovementSpinTurnRight:
ld de, .DirectionData_Clockwise
call .MovementSpinNextFacing
jr .MovementSpinClockwise
.DirectionData_Clockwise: ; 49cc
db OW_LEFT, OW_RIGHT, OW_UP, OW_DOWN
.MovementSpinNextFacing:
ld hl, OBJECT_FACING
add hl, bc
ld a, [hl]
and %00001100
rrca
rrca
push hl
ld l, a
ld h, 0
add hl, de
ld a, [hl]
pop hl
ld [hl], a
call DecrementObjectMovementByteIndex
ret
.MovementShadow:
call ._MovementShadow_Grass_Emote_BoulderDust
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_SHADOW
ld hl, OBJECT_STEP_DURATION
add hl, de
ld a, [hl]
inc a
add a
add 0
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], a
ld hl, OBJECT_DIRECTION_WALKING
add hl, de
ld a, [hl]
and 3
ld d, 1 * 8 + 6
cp DOWN
jr z, .ok_13
cp UP
jr z, .ok_13
ld d, 1 * 8 + 4
.ok_13
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], d
ld hl, OBJECT_SPRITE_X_OFFSET
add hl, bc
ld [hl], 0
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_TRACKING_OBJECT
ret
.MovementEmote:
call EndSpriteMovement
call ._MovementShadow_Grass_Emote_BoulderDust
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_EMOTE
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 0
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], -2 * 8
ld hl, OBJECT_SPRITE_X_OFFSET
add hl, bc
ld [hl], 0
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_TRACKING_OBJECT
ret
.MovementBoulderDust:
call EndSpriteMovement
call ._MovementShadow_Grass_Emote_BoulderDust
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_BOULDER_DUST
ld hl, OBJECT_STEP_DURATION
add hl, de
ld a, [hl]
inc a
add a
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], a
ld hl, OBJECT_DIRECTION_WALKING
add hl, de
ld a, [hl]
and %00000011
ld e, a
ld d, 0
ld hl, .data_4a81
add hl, de
add hl, de
ld d, [hl]
inc hl
ld e, [hl]
ld hl, OBJECT_SPRITE_X_OFFSET
add hl, bc
ld [hl], d
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], e
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_TRACKING_OBJECT
ret
.data_4a81 ; 4a81
; x, y
db 0, -4
db 0, 8
db 6, 2
db -6, 2
.MovementShakingGrass:
call EndSpriteMovement
call ._MovementShadow_Grass_Emote_BoulderDust
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_GRASS_SHAKE
ld hl, OBJECT_STEP_DURATION
add hl, de
ld a, [hl]
add -1
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], a
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_TRACKING_OBJECT
ret
._MovementShadow_Grass_Emote_BoulderDust:
ld hl, OBJECT_RANGE
add hl, bc
ld a, [hl]
push bc
call GetObjectStruct
ld d, b
ld e, c
pop bc
ld hl, OBJECT_29
add hl, bc
ld [hl], e
inc hl
ld [hl], d
ret
.MovementScreenShake:
call EndSpriteMovement
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_00
ld hl, OBJECT_RANGE
add hl, bc
ld a, [hl]
call ._MovementScreenShake
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], e
ld hl, OBJECT_30
add hl, bc
ld [hl], a
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_15
ret
._MovementScreenShake:
ld d, a
and %00111111
ld e, a
ld a, d
rlca
rlca
and %00000011
ld d, a
inc d
ld a, 1
.loop
dec d
ret z
add a
jr .loop
.RandomWalkContinue:
call InitStep
call Function6ec1 ; check whether the object can move in that direction
jr c, .NewDuration
call UpdateTallGrassFlags
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_STEP
ld hl, wCenteredObject
ld a, [hMapObjectIndexBuffer]
cp [hl]
jr z, .load_6
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_07
ret
.load_6
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_PLAYER_WALK
ret
.NewDuration:
call EndSpriteMovement
call Function462a
RandomStepDuration_Slow: ; 4b1d
call Random
ld a, [hRandomAdd]
and %01111111
jr SetRandomStepDuration
; 4b26
RandomStepDuration_Fast: ; 4b26
call Random
ld a, [hRandomAdd]
and %00011111
SetRandomStepDuration: ; 4b2d
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], a
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_STAND
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_03
ret
; 4b45
StepTypesJumptable: ; 4b45
; entries correspond to STEP_TYPE_* constants
dw ObjectMovementReset ; 00
dw MapObjectMovementPattern ; unused
dw NPCStep ; 02 npc walk
dw StepType03 ; 03
dw StepType04 ; 04
dw StepType05 ; 05
dw PlayerStep ; 06 player walk
dw StepType07 ; 07
dw NPCJump ; 08 npc jump step
dw PlayerJump ; 09 player jump step
dw PlayerOrNPCTurnStep ; 0a half step
dw StepTypeBump ; 0b
dw TeleportFrom ; 0c teleport from
dw TeleportTo ; 0d teleport to
dw Skyfall ; 0e skyfall
dw StepType0f ; 0f
dw GotBiteStep ; 10
dw RockSmashStep ; 11
dw ReturnDigStep ; 12
dw StepTypeTrackingObject ; 13
dw StepType14 ; 14
dw StepType15 ; 15
dw StepType16 ; 16
dw StepType17 ; 17
dw StepType18 ; 18
dw SkyfallTop ; 19
; 4b79
WaitStep_InPlace: ; 4b79
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4b86
NPCJump: ; 4b86
call Object28AnonymousJumptable
; anonymous dw
dw .Jump
dw .Land
.Jump:
call AddStepVector
call UpdateJumpPosition
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
call CopyNextCoordsTileToStandingCoordsTile
call GetNextTile
ld hl, OBJECT_FLAGS2
add hl, bc
res 3, [hl]
call IncrementObjectStructField28
ret
.Land:
call AddStepVector
call UpdateJumpPosition
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
call CopyNextCoordsTileToStandingCoordsTile
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4bbf
PlayerJump: ; 4bbf
call Object28AnonymousJumptable
; anonymous dw
dw .initjump
dw .stepjump
dw .initland
dw .stepland
.initjump
ld hl, wPlayerStepFlags
set 7, [hl]
call IncrementObjectStructField28
.stepjump
call UpdateJumpPosition
call UpdatePlayerStep
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
call CopyNextCoordsTileToStandingCoordsTile
ld hl, OBJECT_FLAGS2
add hl, bc
res 3, [hl]
ld hl, wPlayerStepFlags
set 6, [hl]
set 4, [hl]
call IncrementObjectStructField28
ret
.initland
call GetNextTile
ld hl, wPlayerStepFlags
set 7, [hl]
call IncrementObjectStructField28
.stepland
call UpdateJumpPosition
call UpdatePlayerStep
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
ld hl, wPlayerStepFlags
set 6, [hl]
call CopyNextCoordsTileToStandingCoordsTile
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4c18
TeleportFrom: ; 4c18
call Object28AnonymousJumptable
; anonymous dw
dw .InitSpin
dw .DoSpin
dw .InitSpinRise
dw .DoSpinRise
; 4c23
.InitSpin:
ld hl, OBJECT_STEP_FRAME
add hl, bc
ld [hl], 0
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 16
call IncrementObjectStructField28
.DoSpin:
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_SPIN
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
call IncrementObjectStructField28
ret
.InitSpinRise:
ld hl, OBJECT_STEP_FRAME
add hl, bc
ld [hl], 0
ld hl, OBJECT_31
add hl, bc
ld [hl], $10
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 16
ld hl, OBJECT_FLAGS2
add hl, bc
res 3, [hl]
call IncrementObjectStructField28
.DoSpinRise:
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_SPIN
ld hl, OBJECT_31
add hl, bc
inc [hl]
ld a, [hl]
ld d, $60
call Sine
ld a, h
sub $60
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], a
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
ld hl, OBJECT_STEP_FRAME
add hl, bc
ld [hl], 0
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4c89
TeleportTo: ; 4c89
call Object28AnonymousJumptable
; anonymous dw
dw .InitWait
dw .DoWait
dw .InitDescent
dw .DoDescent
dw .InitFinalSpin
dw .DoFinalSpin
dw .FinishStep
; 4c9a
.InitWait:
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_00
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 16
call IncrementObjectStructField28
ret
; 4caa
.DoWait:
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
call IncrementObjectStructField28
.InitDescent:
ld hl, OBJECT_STEP_FRAME
add hl, bc
ld [hl], 0
ld hl, OBJECT_31
add hl, bc
ld [hl], 0
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 16
call IncrementObjectStructField28
ret
; 4cc9
.DoDescent:
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_SPIN
ld hl, OBJECT_31
add hl, bc
inc [hl]
ld a, [hl]
ld d, $60
call Sine
ld a, h
sub $60
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], a
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
call IncrementObjectStructField28
.InitFinalSpin:
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 16
call IncrementObjectStructField28
ret
; 4cf5
.DoFinalSpin:
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_SPIN
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
.FinishStep:
ld hl, OBJECT_STEP_FRAME
add hl, bc
ld [hl], 0
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], 0
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4d14
Skyfall: ; 4d14
call Object28AnonymousJumptable
; anonymous dw
dw .Init
dw .Step
dw .Fall
dw .Finish
; 4d1f
.Init:
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_00
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 16
call IncrementObjectStructField28
.Step:
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_STEP
ld hl, OBJECT_STEP_FRAME
add hl, bc
ld [hl], 0
ld hl, OBJECT_31
add hl, bc
ld [hl], 0
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 16
call IncrementObjectStructField28
.Fall:
ld hl, OBJECT_31
add hl, bc
inc [hl]
ld a, [hl]
ld d, $60
call Sine
ld a, h
sub $60
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], a
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
call IncrementObjectStructField28
.Finish:
ld hl, OBJECT_STEP_FRAME
add hl, bc
ld [hl], 0
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], 0
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4d7e
GotBiteStep: ; 4d7e
call Object28AnonymousJumptable
; anonymous dw
dw .Init
dw .Run
; 4d85
.Init:
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 8
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], 0
call IncrementObjectStructField28
.Run:
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld a, [hl]
xor 1
ld [hl], a
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], 0
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4daf
RockSmashStep: ; 4daf
call .Step
jp WaitStep_InPlace
; 4db5
.Step:
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld a, [hl]
and %00000001
ld a, PERSON_ACTION_STAND
jr z, .yes
ld a, PERSON_ACTION_00
.yes
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], a
ret
; 4dc8
ReturnDigStep: ; 4dc8
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld a, [hl]
and %00000001
ld a, PERSON_ACTION_SPIN
jr z, .yes
ld a, PERSON_ACTION_SPIN_FLICKER
.yes
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], a
jp WaitStep_InPlace
; 4ddd
StepType03: ; 4ddd
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4df0
StepType18: ; 4df0
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
jp DeleteMapObject
; 4dff
StepTypeBump: ; 4dff
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4e0c
StepType05: ; 4e0c
call Object28AnonymousJumptable
; anonymous dw
dw .Reset
dw StepType04
.Reset:
call RestoreDefaultMovement
call GetInitialFacing
ld hl, OBJECT_FACING
add hl, bc
ld [hl], a
call IncrementObjectStructField28
StepType04: ; 4e21
call MobileFn_4fb2
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ret
; 4e2b
NPCStep: ; 4e2b
call MobileFn_4fb2
call AddStepVector
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
call CopyNextCoordsTileToStandingCoordsTile
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4e47
StepType07: ; 4e47
call AddStepVector
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
call CopyNextCoordsTileToStandingCoordsTile
jp RandomStepDuration_Slow
; 4e56
PlayerStep: ; 4e56
; AnimateStep?
call Object28AnonymousJumptable
; anonymous dw
dw .init
dw .step
.init
ld hl, wPlayerStepFlags
set 7, [hl]
call IncrementObjectStructField28
.step
call UpdatePlayerStep
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
ld hl, wPlayerStepFlags
set 6, [hl]
call CopyNextCoordsTileToStandingCoordsTile
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4e83
PlayerOrNPCTurnStep: ; 4e83
call Object28AnonymousJumptable
; anonymous dw
dw .init1
dw .step1
dw .init2
dw .step2
.init1
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ld hl, OBJECT_STEP_FRAME
add hl, bc
ld a, [hl]
ld [hl], 2
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 2
call IncrementObjectStructField28
.step1
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
call IncrementObjectStructField28
.init2
ld hl, OBJECT_29 ; new facing
add hl, bc
ld a, [hl]
ld hl, OBJECT_FACING
add hl, bc
ld [hl], a
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 2
call IncrementObjectStructField28
.step2
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4ecd
StepType0f: ; 4ecd
call AddStepVector
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
push bc
ld hl, OBJECT_NEXT_MAP_X
add hl, bc
ld d, [hl]
ld hl, OBJECT_NEXT_MAP_Y
add hl, bc
ld e, [hl]
ld hl, OBJECT_MAP_OBJECT_INDEX
add hl, bc
ld a, [hl]
ld b, a
callba CopyDECoordsToMapObject
pop bc
ld hl, OBJECT_FLAGS2
add hl, bc
res 2, [hl]
call CopyNextCoordsTileToStandingCoordsTile
ld hl, OBJECT_DIRECTION_WALKING
add hl, bc
ld [hl], STANDING
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4f04
StepTypeTrackingObject: ; 4f04
ld hl, OBJECT_29
add hl, bc
ld e, [hl]
inc hl
ld d, [hl]
ld hl, OBJECT_SPRITE
add hl, de
ld a, [hl]
and a
jr z, .nope
ld hl, OBJECT_SPRITE_X
add hl, de
ld a, [hl]
ld hl, OBJECT_SPRITE_X
add hl, bc
ld [hl], a
ld hl, OBJECT_SPRITE_Y
add hl, de
ld a, [hl]
ld hl, OBJECT_SPRITE_Y
add hl, bc
ld [hl], a
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld a, [hl]
and a
ret z
dec [hl]
ret nz
.nope
jp DeleteMapObject
; 4f33
StepType14: ; 4f33
StepType15: ; 4f33
call Object28AnonymousJumptable
; anonymous dw
dw .Init
dw .Run
.Init:
xor a
ld hl, OBJECT_29
add hl, bc
ld [hl], a
call IncrementObjectStructField28
.Run:
ld hl, OBJECT_29
add hl, bc
ld d, [hl]
ld a, [wPlayerStepVectorY]
sub d
ld [wPlayerStepVectorY], a
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
jr z, .ok
ld a, [hl]
call .GetSign
ld hl, OBJECT_29
add hl, bc
ld [hl], a
ld d, a
ld a, [wPlayerStepVectorY]
add d
ld [wPlayerStepVectorY], a
ret
.ok
call DeleteMapObject
ret
.GetSign:
ld hl, OBJECT_30
add hl, bc
and 1
ld a, [hl]
ret z
cpl
inc a
ret
; 4f77
StepType16: ; 4f77
call Object28AnonymousJumptable ; ????
; 4f7a
StepType17: ; 4f7a
call Object28AnonymousJumptable
; anonymous dw
dw .null
dw .null
dw .null
.null
; 4f83
SkyfallTop: ; 4f83
call Object28AnonymousJumptable
; anonymous dw
dw .Init
dw .Run
.Init:
ld hl, OBJECT_ACTION
add hl, bc
ld [hl], PERSON_ACTION_SKYFALL
ld hl, OBJECT_STEP_DURATION
add hl, bc
ld [hl], 16
call IncrementObjectStructField28
.Run:
ld hl, OBJECT_STEP_DURATION
add hl, bc
dec [hl]
ret nz
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], $60
ld hl, OBJECT_STEP_FRAME
add hl, bc
ld [hl], 0
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_SLEEP
ret
; 4fb2
MobileFn_4fb2: mobile
ld hl, OBJECT_29
add hl, bc
inc [hl]
ld a, [hl]
srl a
srl a
and %00000111
ld l, a
ld h, 0
ld de, .y
add hl, de
ld a, [hl]
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], a
ret
.y ; 4fcd
db 0, -1, -2, -3, -4, -3, -2, -1
; 4fd5
UpdateJumpPosition: ; 4fd5
call GetStepVector
ld a, h
ld hl, OBJECT_31
add hl, bc
ld e, [hl]
add e
ld [hl], a
nop
srl e
ld d, 0
ld hl, .y
add hl, de
ld a, [hl]
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld [hl], a
ret
.y ; 4ff0
db -4, -6, -8, -10, -11, -12, -12, -12
db -11, -10, -9, -8, -6, -4, 0, 0
; 5000
Function5000: ; unscripted?
; copy [wPlayerNextMovement] to [wPlayerMovement]
ld a, [wPlayerNextMovement]
ld hl, wPlayerMovement
ld [hl], a
; load [wPlayerNextMovement] with movement_step_sleep
ld a, movement_step_sleep
ld [wPlayerNextMovement], a
; recover the previous value of [wPlayerNextMovement]
ld a, [hl]
ret
; 500e
GetMovementByte:
ld hl, wMovementDataPointer
call _GetMovementByte
ret
; 5015
Function5015: ; 5015
ld hl, OBJECT_MOVEMENT_BYTE_INDEX
add hl, bc
ld e, [hl]
inc [hl]
ld d, 0
ld hl, wc2e2
ld a, [hli]
ld h, [hl]
ld l, a
add hl, de
ld a, [hl]
ret
; 5026
Function5026: ; 5026
ld hl, OBJECT_MOVEMENT_BYTE_INDEX
add hl, bc
ld e, [hl]
inc [hl]
ld d, 0
ld hl, wc2e6
ld a, [hli]
ld h, [hl]
ld l, a
add hl, de
ld a, [hl]
ret
; 5037
_GetMovementPerson: ; 5037
ld hl, GetMovementPerson
jp HandleMovementData
; 503d
GetMovementPerson: ; 503d
ld a, [wMovementPerson]
ret
; 5041
HandleMovementData: ; 5041
call .StorePointer
.loop
xor a
ld [wMovementByteWasControlSwitch], a
call JumpMovementPointer
call DoMovementFunction
ld a, [wMovementByteWasControlSwitch]
and a
jr nz, .loop
ret
.StorePointer:
ld a, l
ld [wMovementPointer], a
ld a, h
ld [wMovementPointer + 1], a
ret
; 505e
JumpMovementPointer: ; 505e
ld hl, wMovementPointer
ld a, [hli]
ld h, [hl]
ld l, a
jp hl
; 5065
ContinueReadingMovement: ; 5065
ld a, 1
ld [wMovementByteWasControlSwitch], a
ret
; 506b
DoMovementFunction: ; 506b
push af
call ApplyMovementToFollower
pop af
ld hl, MovementPointers
rst JumpTable
ret
; 5075
INCLUDE "engine/movement.asm"
; 54b8
ApplyMovementToFollower: ; 54b8
ld e, a
ld a, [wObjectFollow_Follower]
cp -1
ret z
ld a, [wObjectFollow_Leader]
ld d, a
ld a, [hMapObjectIndexBuffer]
cp d
ret nz
ld a, e
cp movement_step_sleep
ret z
cp movement_step_end
ret z
cp movement_step_4b
ret z
cp movement_step_bump
ret z
cp movement_slow_step
ret c
push af
ld hl, wFollowerMovementQueueLength
inc [hl]
ld e, [hl]
ld d, 0
ld hl, wFollowMovementQueue
add hl, de
pop af
ld [hl], a
ret
; 54e6
GetFollowerNextMovementByte: ; 54e6
ld hl, wFollowerMovementQueueLength
ld a, [hl]
and a
jr z, .done
cp -1
jr z, .done
dec [hl]
ld e, a
ld d, 0
ld hl, wFollowMovementQueue
add hl, de
inc e
ld a, -1
.loop
ld d, [hl]
ld [hld], a
ld a, d
dec e
jr nz, .loop
ret
.done
call .CancelFollowIfLeaderMissing
ret c
ld a, movement_step_sleep
ret
.CancelFollowIfLeaderMissing:
ld a, [wObjectFollow_Leader]
cp -1
jr z, .nope
push bc
call GetObjectStruct
ld hl, OBJECT_SPRITE
add hl, bc
ld a, [hl]
pop bc
and a
jr z, .nope
and a
ret
.nope
ld a, -1
ld [wObjectFollow_Follower], a
ld a, movement_step_end
scf
ret
; 5529
SpawnShadow: ; 5529
push bc
ld de, .ShadowObject
call CopyTempObjectData
call InitTempObject
pop bc
ret
.ShadowObject:
; vtile, palette, movement
db $00, PAL_OW_SILVER, SPRITEMOVEDATA_SHADOW
; 5538
SpawnStrengthBoulderDust: ; 5538
push bc
ld de, .BoulderDustObject
call CopyTempObjectData
call InitTempObject
pop bc
ret
.BoulderDustObject:
db $00, PAL_OW_SILVER, SPRITEMOVEDATA_BOULDERDUST
; 5547
SpawnEmote: ; 5547
push bc
ld de, .EmoteObject
call CopyTempObjectData
call InitTempObject
pop bc
ret
.EmoteObject:
db $00, PAL_OW_SILVER, SPRITEMOVEDATA_EMOTE
; 5556
ShakeGrass: ; 5556
push bc
ld de, .data_5562
call CopyTempObjectData
call InitTempObject
pop bc
ret
.data_5562
db $00, PAL_OW_TREE, SPRITEMOVEDATA_GRASS
; 5565
ShakeScreen: ; 5565
push bc
push af
ld de, .ScreenShakeObject
call CopyTempObjectData
pop af
ld [wTempObjectCopyRange], a
call InitTempObject
pop bc
ret
.ScreenShakeObject:
db $00, PAL_OW_SILVER, SPRITEMOVEDATA_SCREENSHAKE
; 5579
DespawnEmote: ; 5579
push bc
ld a, [hMapObjectIndexBuffer]
ld c, a
call .DeleteEmote
pop bc
ret
.DeleteEmote:
ld de, ObjectStructs
ld a, NUM_OBJECT_STRUCTS
.loop
push af
ld hl, OBJECT_FLAGS1
add hl, de
bit EMOTE_OBJECT, [hl]
jr z, .next
ld hl, OBJECT_SPRITE
add hl, de
ld a, [hl]
and a
jr z, .next
push bc
xor a
ld bc, OBJECT_STRUCT_LENGTH
call ByteFill
pop bc
.next
ld hl, OBJECT_STRUCT_LENGTH
add hl, de
ld d, h
ld e, l
pop af
dec a
jr nz, .loop
ret
; 55ac
InitTempObject: ; 55ac
call FindFirstEmptyObjectStruct
ret nc
ld d, h
ld e, l
callba CopyTempObjectToObjectStruct
ret
; 55b9
CopyTempObjectData: ; 55b9
; load into wTempObjectCopy:
; -1, -1, [de], [de + 1], [de + 2], [hMapObjectIndexBuffer], [NextMapX], [NextMapY], -1
; This spawns the object at the same place as whichever object is loaded into bc.
ld hl, wTempObjectCopyMapObjectIndex
ld [hl], -1
inc hl
ld [hl], -1
inc hl
ld a, [de]
inc de
ld [hli], a
ld a, [de]
inc de
ld [hli], a
ld a, [de]
ld [hli], a
ld a, [hMapObjectIndexBuffer]
ld [hli], a
push hl
ld hl, OBJECT_NEXT_MAP_X
add hl, bc
ld d, [hl]
ld hl, OBJECT_NEXT_MAP_Y
add hl, bc
ld e, [hl]
pop hl
ld [hl], d
inc hl
ld [hl], e
inc hl
ld [hl], -1
ret
; 55e0
Function55e0:: ; 55e0
ld a, [VramState]
bit 0, a
ret z
ld bc, ObjectStructs
xor a
.loop
ld [hMapObjectIndexBuffer], a
call DoesObjectHaveASprite
jr z, .ok
call Function565c
.ok
ld hl, OBJECT_STRUCT_LENGTH
add hl, bc
ld b, h
ld c, l
ld a, [hMapObjectIndexBuffer]
inc a
cp NUM_OBJECT_STRUCTS
jr nz, .loop
ret
; 5602
Function5602: ; 5602, called at battle start
call Function5645 ; clear sprites
ld a, PLAYER
call Function5629 ; respawn player
ld a, [wBattleScriptFlags]
bit 7, a
jr z, .ok
ld a, [hLastTalked]
and a
jr z, .ok
call Function5629 ; respawn opponent
.ok
call _UpdateSprites
ret
; 561d
Function561d: ; 561d
call Function5645 ; clear sprites
ld a, PLAYER
call Function5629 ; respawn player
call _UpdateSprites
ret
; 5629
Function5629: ; 5629
cp NUM_OBJECTS
ret nc
call GetMapObject
ld hl, MAPOBJECT_OBJECT_STRUCT_ID
add hl, bc
ld a, [hl]
cp -1
ret z
cp NUM_OBJECT_STRUCTS
ret nc
call GetObjectStruct
call DoesObjectHaveASprite
ret z
call Function5673
ret
; 5645
Function5645: ; 5645
xor a
ld bc, ObjectStructs
.loop
ld [hMapObjectIndexBuffer], a
call SetFacing_Standing
ld hl, OBJECT_STRUCT_LENGTH
add hl, bc
ld b, h
ld c, l
ld a, [hMapObjectIndexBuffer]
inc a
cp NUM_OBJECT_STRUCTS
jr nz, .loop
ret
; 565c
Function565c: ; 565c
push bc
call Function56cd
pop bc
jr c, SetFacing_Standing
call Function56a3
jr c, SetFacing_Standing
call Function5688
callba Function4440
xor a
ret
; 5673
Function5673: ; 5673
call Function56a3
jr c, SetFacing_Standing
callba Function4440 ; no need to farcall
xor a
ret
; 5680
SetFacing_Standing: ; 5680
ld hl, OBJECT_FACING_STEP
add hl, bc
ld [hl], STANDING
scf
ret
; 5688
Function5688: ; 5688
push bc
ld hl, OBJECT_NEXT_MAP_X
add hl, bc
ld d, [hl]
ld hl, OBJECT_NEXT_MAP_Y
add hl, bc
ld e, [hl]
call GetCoordTile
pop bc
ld hl, OBJECT_NEXT_TILE
add hl, bc
ld [hl], a
callba UpdateTallGrassFlags ; no need to farcall
ret
; 56a3
Function56a3: ; 56a3
ld hl, OBJECT_NEXT_MAP_X
add hl, bc
ld d, [hl]
ld hl, OBJECT_NEXT_MAP_Y
add hl, bc
ld e, [hl]
inc d
inc e
ld a, [XCoord]
cp d
jr z, .equal_x
jr nc, .nope
add $b
cp d
jr c, .nope
.equal_x
ld a, [YCoord]
cp e
jr z, .equal_y
jr nc, .nope
add $a
cp e
jr c, .nope
.equal_y
xor a
ret
.nope
scf
ret
; 56cd
Function56cd: ; 56cd
ld a, [wPlayerBGMapOffsetX]
ld d, a
ld hl, OBJECT_SPRITE_X_OFFSET
add hl, bc
ld a, [hl]
ld hl, OBJECT_SPRITE_X
add hl, bc
add [hl]
add d
cp $f0
jr nc, .ok1
cp $a0
jp nc, .nope
.ok1
and %00000111
ld d, 2
cp 4
jr c, .ok2
ld d, 3
.ok2
ld a, [hl]
srl a
srl a
srl a
cp SCREEN_WIDTH
jr c, .ok3
sub $20
.ok3
ld [hUsedSpriteIndex], a
ld a, [wPlayerBGMapOffsetY]
ld e, a
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
ld a, [hl]
ld hl, OBJECT_SPRITE_Y
add hl, bc
add [hl]
add e
cp $f0
jr nc, .ok4
cp $90
jr nc, .nope
.ok4
and %00000111
ld e, 2
cp 4
jr c, .ok5
ld e, 3
.ok5
ld a, [hl]
srl a
srl a
srl a
cp $12
jr c, .ok6
sub $20
.ok6
ld [hUsedSpriteTile], a
ld hl, OBJECT_PALETTE
add hl, bc
bit 7, [hl]
jr z, .ok7
ld a, d
add 2
ld d, a
ld a, e
add 2
ld e, a
.ok7
ld a, d
ld [hFFBF], a
.loop
ld a, [hFFBF]
ld d, a
ld a, [hUsedSpriteTile]
add e
dec a
cp $12
jr nc, .ok9
ld b, a
.next
ld a, [hUsedSpriteIndex]
add d
dec a
cp $14
jr nc, .ok8
ld c, a
push bc
call Coord2Tile
pop bc
ld a, [hl]
cp $60
jr nc, .nope
.ok8
dec d
jr nz, .next
.ok9
dec e
jr nz, .loop
and a
ret
.nope
scf
ret
; 576a
HandleNPCStep:: ; 576a
call .ResetStepVector
call .DoStepsForAllObjects
ret
.ResetStepVector:
xor a
ld [wPlayerStepVectorX], a
ld [wPlayerStepVectorY], a
ld [wPlayerStepFlags], a
ld a, -1
ld [wPlayerStepDirection], a
ret
.DoStepsForAllObjects:
ld bc, ObjectStructs
xor a
.loop
ld [hMapObjectIndexBuffer], a
call DoesObjectHaveASprite
jr z, .next
call Function437b
.next
ld hl, OBJECT_STRUCT_LENGTH
add hl, bc
ld b, h
ld c, l
ld a, [hMapObjectIndexBuffer]
inc a
cp NUM_OBJECT_STRUCTS
jr nz, .loop
ret
; 579d
RefreshPlayerSprite: ; 579d
ld a, movement_step_sleep
ld [wPlayerNextMovement], a
ld [wPlayerMovement], a
xor a
ld [wPlayerTurningDirection], a
ld [PlayerObjectStepFrame], a
call .TryResetPlayerAction
callba CheckWarpFacingDown
call c, SpawnInFacingDown
call .SpawnInCustomFacing
ret
; 57bc
.TryResetPlayerAction: ; 57bc
ld hl, wPlayerSpriteSetupFlags
bit 7, [hl]
jr nz, .ok
ret
.ok
ld a, PERSON_ACTION_00
ld [PlayerAction], a
ret
; 57ca
.SpawnInCustomFacing: ; 57ca
ld hl, wPlayerSpriteSetupFlags
bit 5, [hl]
ret z
ld a, [wPlayerSpriteSetupFlags]
and 3
add a
add a
jr ContinueSpawnFacing
; 57d9
SpawnInFacingDown: ; 57d9
ld a, 0
ContinueSpawnFacing: ; 57db
ld bc, PlayerStruct
call SetSpriteDirection
ret
; 57e2
SetPlayerPalette: ; 57e2
ld a, d
and %10000000
ret z
ld bc, 0 ; debug?
ld hl, OBJECT_FACING
add hl, bc
ld a, [hl]
or d
ld [hl], a
ld a, d
swap a
and %00000111
ld d, a
ld bc, PlayerStruct
ld hl, OBJECT_PALETTE
add hl, bc
ld a, [hl]
and %11111000
or d
ld [hl], a
ret
; 5803
StartFollow:: ; 5803
push bc
ld a, b
call SetLeaderIfVisible
pop bc
ret c
ld a, c
call SetFollowerIfVisible
callba QueueFollowerFirstStep
ret
; 5815
SetLeaderIfVisible: ; 5815
call CheckObjectVisibility
ret c
ld a, [hObjectStructIndexBuffer]
ld [wObjectFollow_Leader], a
ret
; 581f
StopFollow:: ; 581f
call ResetLeader
call ResetFollower
ret
; 5826
ResetLeader: ; 5826
ld a, -1
ld [wObjectFollow_Leader], a
ret
; 582c
SetFollowerIfVisible: ; 582c
push af
call ResetFollower
pop af
call CheckObjectVisibility
ret c
ld hl, OBJECT_MOVEMENTTYPE
add hl, bc
ld [hl], SPRITEMOVEDATA_FOLLOWING
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_00
ld a, [hObjectStructIndexBuffer]
ld [wObjectFollow_Follower], a
ret
; 5847
ResetFollower: ; 5847
ld a, [wObjectFollow_Follower]
cp -1
ret z
call GetObjectStruct
callba Function58e3 ; no need to bankswitch
ld a, -1
ld [wObjectFollow_Follower], a
ret
; 585c
SetFlagsForMovement_1:: ; 585c
ld a, c
call CheckObjectVisibility
ret c
push bc
call Function587a
pop bc
ld hl, OBJECT_FLAGS2
add hl, bc
res 5, [hl]
xor a
ret
; 586e
Function586e: ; 586e
call CheckObjectVisibility
ret c
ld hl, OBJECT_FLAGS2
add hl, bc
set 5, [hl]
xor a
ret
; 587a
Function587a: ; 587a
ld bc, ObjectStructs
xor a
.loop
push af
call DoesObjectHaveASprite
jr z, .next
ld hl, OBJECT_FLAGS2
add hl, bc
set 5, [hl]
.next
ld hl, OBJECT_STRUCT_LENGTH
add hl, bc
ld b, h
ld c, l
pop af
inc a
cp NUM_OBJECT_STRUCTS
jr nz, .loop
ret
; 5897
_SetFlagsForMovement_2:: ; 5897
ld a, [wObjectFollow_Leader]
cp -1
ret z
push bc
call GetObjectStruct
ld hl, OBJECT_MAP_OBJECT_INDEX
add hl, bc
ld a, [hl]
pop bc
cp c
ret nz
ld a, [wObjectFollow_Follower]
cp -1
ret z
call GetObjectStruct
ld hl, OBJECT_FLAGS2
add hl, bc
res 5, [hl]
ret
; 58b9
Function58b9:: ; 58b9
push bc
ld bc, ObjectStructs
xor a
.loop
push af
call DoesObjectHaveASprite
jr z, .next
ld hl, OBJECT_FLAGS2
add hl, bc
res 5, [hl]
.next
ld hl, OBJECT_STRUCT_LENGTH
add hl, bc
ld b, h
ld c, l
pop af
inc a
cp NUM_OBJECT_STRUCTS
jr nz, .loop
pop bc
ret
; 58d8
Function58d8: ; 58d8
call CheckObjectVisibility
ret c
ld hl, OBJECT_FLAGS2
add hl, bc
res 5, [hl]
ret
; 58e3
Function58e3: ; 58e3
ld hl, OBJECT_MAP_OBJECT_INDEX
add hl, bc
ld a, [hl]
cp -1
jp z, Function5903 ; a jr would have been appropriate here
push bc
call GetMapObject
ld hl, MAPOBJECT_MOVEMENT
add hl, bc
ld a, [hl]
pop bc
ld hl, OBJECT_MOVEMENTTYPE
add hl, bc
ld [hl], a
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_00
ret
; 5903
Function5903: ; 5903
call GetSpriteDirection
rrca
rrca
ld e, a
ld d, 0
ld hl, .standing_movefns
add hl, de
ld a, [hl]
ld hl, OBJECT_MOVEMENTTYPE
add hl, bc
ld [hl], a
ld hl, OBJECT_STEP_TYPE
add hl, bc
ld [hl], STEP_TYPE_00
ret
.standing_movefns
db SPRITEMOVEDATA_STANDING_DOWN
db SPRITEMOVEDATA_STANDING_UP
db SPRITEMOVEDATA_STANDING_LEFT
db SPRITEMOVEDATA_STANDING_RIGHT
; 5920
_UpdateSprites:: ; 5920
ld a, [VramState]
bit 0, a
ret z
xor a
ld [hUsedSpriteIndex], a
ld a, [hOAMUpdate]
push af
ld a, 1
ld [hOAMUpdate], a
call InitSprites
call .fill
pop af
ld [hOAMUpdate], a
ret
.fill
ld a, [VramState]
bit 1, a
ld b, SpritesEnd % $100
jr z, .ok
ld b, 28 * 4
.ok
ld a, [hUsedSpriteIndex]
cp b
ret nc
ld l, a
ld h, Sprites / $100
ld de, 4
ld a, b
ld c, SCREEN_HEIGHT_PX + 16
.loop
ld [hl], c
add hl, de
cp l
jr nz, .loop
ret
; 5958
ApplyBGMapAnchorToObjects: ; 5958
push hl
push de
push bc
ld a, [wPlayerBGMapOffsetX]
ld d, a
ld a, [wPlayerBGMapOffsetY]
ld e, a
ld bc, ObjectStructs
ld a, NUM_OBJECT_STRUCTS
.loop
push af
call DoesObjectHaveASprite
jr z, .skip
ld hl, OBJECT_SPRITE_X
add hl, bc
ld a, [hl]
add d
ld [hl], a
ld hl, OBJECT_SPRITE_Y
add hl, bc
ld a, [hl]
add e
ld [hl], a
.skip
ld hl, OBJECT_STRUCT_LENGTH
add hl, bc
ld b, h
ld c, l
pop af
dec a
jr nz, .loop
xor a
ld [wPlayerBGMapOffsetX], a
ld [wPlayerBGMapOffsetY], a
pop bc
pop de
pop hl
ret
; 5991
InitSprites: ; 5991
PRIORITY_LOW EQU $10
PRIORITY_NORM EQU $20
PRIORITY_HIGH EQU $30
call .DeterminePriorities
ld c, PRIORITY_HIGH
call .InitSpritesByPriority
ld c, PRIORITY_NORM
call .InitSpritesByPriority
ld c, PRIORITY_LOW
call .InitSpritesByPriority
ret
.DeterminePriorities:
xor a
ld hl, wMovementPointer
ld bc, NUM_OBJECT_STRUCTS
call ByteFill
ld d, 0
ld bc, ObjectStructs
ld hl, wMovementPointer
.loop
push hl
call DoesObjectHaveASprite
jr z, .skip
ld hl, OBJECT_FACING_STEP
add hl, bc
ld a, [hl]
cp STANDING
jr z, .skip
; Define the sprite priority.
ld e, PRIORITY_LOW
ld hl, OBJECT_FLAGS2
add hl, bc
bit 0, [hl]
jr nz, .add
ld e, PRIORITY_NORM
bit 1, [hl]
jr z, .add
ld e, PRIORITY_HIGH
jr .add
.skip
ld hl, OBJECT_STRUCT_LENGTH
add hl, bc
ld b, h
ld c, l
pop hl
jr .next
.add
ld hl, OBJECT_STRUCT_LENGTH
add hl, bc
ld b, h
ld c, l
pop hl
ld a, d
or e
ld [hli], a
.next
inc d
ld a, d
cp NUM_OBJECT_STRUCTS
jr nz, .loop
ret
.InitSpritesByPriority:
ld hl, wMovementPointer
.next_sprite
ld a, [hli]
ld d, a
and $f0
ret z
cp c
jr nz, .next_sprite
push bc
push hl
ld a, d
and $f
call .GetObjectStructPointer
call .InitSprite
pop hl
pop bc
jr .next_sprite
.InitSprite:
ld hl, OBJECT_SPRITE_TILE
add hl, bc
ld a, [hl]
and %01111111
ld [hFFC1], a
xor a
bit 7, [hl]
jr nz, .skip1
or %00001000
.skip1
ld hl, OBJECT_FLAGS2
add hl, bc
ld e, [hl]
bit 7, e
jr z, .skip2
or %10000000
.skip2
bit 4, e
jr z, .skip3
or %00010000
.skip3
ld hl, OBJECT_PALETTE
add hl, bc
ld d, a
ld a, [hl]
and %00000111
or d
ld d, a
xor a
bit 3, e
jr z, .skip4
or %10000000
.skip4
ld [hFFC2], a
ld hl, OBJECT_SPRITE_X
add hl, bc
ld a, [hl]
ld hl, OBJECT_SPRITE_X_OFFSET
add hl, bc
add [hl]
add 8
ld e, a
ld a, [wPlayerBGMapOffsetX]
add e
ld [hFFBF], a
ld hl, OBJECT_SPRITE_Y
add hl, bc
ld a, [hl]
ld hl, OBJECT_SPRITE_Y_OFFSET
add hl, bc
add [hl]
add 12
ld e, a
ld a, [wPlayerBGMapOffsetY]
add e
ld [hFFC0], a
ld hl, OBJECT_FACING_STEP
add hl, bc
ld a, [hl]
cp STANDING
jp z, .done
cp NUM_FACINGS
jp nc, .done
ld l, a
ld h, 0
add hl, hl
ld bc, Facings
add hl, bc
ld a, [hli]
ld h, [hl]
ld l, a
ld a, [hUsedSpriteIndex]
ld c, a
ld b, Sprites / $100
ld a, [hli]
ld [hUsedSpriteTile], a
add c
cp SpritesEnd % $100
jr nc, .full
.addsprite
ld a, [hFFC0]
add [hl]
inc hl
ld [bc], a
inc c
ld a, [hFFBF]
add [hl]
inc hl
ld [bc], a
inc c
ld e, [hl]
inc hl
ld a, [hFFC1]
bit 2, e
jr z, .nope1
xor a
.nope1
add [hl]
inc hl
ld [bc], a
inc c
ld a, e
bit 1, a
jr z, .nope2
ld a, [hFFC2]
or e
.nope2
and %11110000
or d
ld [bc], a
inc c
ld a, [hUsedSpriteTile]
dec a
ld [hUsedSpriteTile], a
jr nz, .addsprite
ld a, c
ld [hUsedSpriteIndex], a
.done
xor a
ret
.full
scf
ret
.GetObjectStructPointer:
ld c, a
ld b, 0
ld hl, .Addresses
add hl, bc
add hl, bc
ld c, [hl]
inc hl
ld b, [hl]
ret
.Addresses: ; 5ace
dw PlayerStruct
dw Object1Struct
dw Object2Struct
dw Object3Struct
dw Object4Struct
dw Object5Struct
dw Object6Struct
dw Object7Struct
dw Object8Struct
dw Object9Struct
dw Object10Struct
dw Object11Struct
dw Object12Struct
; 5ae8
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