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|
ClearCmdQueue::
ld hl, wCmdQueue
ld de, CMDQUEUE_ENTRY_SIZE
ld c, CMDQUEUE_CAPACITY
xor a
.loop
ld [hl], a
add hl, de
dec c
jr nz, .loop
ret
HandleCmdQueue::
ld hl, wCmdQueue
xor a
.loop
ldh [hMapObjectIndexBuffer], a
ld a, [hl]
and a
jr z, .skip
push hl
ld b, h
ld c, l
call HandleQueuedCommand
pop hl
.skip
ld de, CMDQUEUE_ENTRY_SIZE
add hl, de
ldh a, [hMapObjectIndexBuffer]
inc a
cp CMDQUEUE_CAPACITY
jr nz, .loop
ret
GetNthCmdQueueEntry: ; unreferenced
ld hl, wCmdQueue
ld bc, CMDQUEUE_ENTRY_SIZE
call AddNTimes
ld b, h
ld c, l
ret
WriteCmdQueue::
push bc
push de
call .GetNextEmptyEntry
ld d, h
ld e, l
pop hl
pop bc
ret c
ld a, b
ld bc, CMDQUEUE_ENTRY_SIZE - 1
call FarCopyBytes
xor a
ld [hl], a
ret
.GetNextEmptyEntry:
ld hl, wCmdQueue
ld de, CMDQUEUE_ENTRY_SIZE
ld c, CMDQUEUE_CAPACITY
.loop
ld a, [hl]
and a
jr z, .done
add hl, de
dec c
jr nz, .loop
scf
ret
.done
ld a, CMDQUEUE_CAPACITY
sub c
and a
ret
DelCmdQueue::
ld hl, wCmdQueue
ld de, CMDQUEUE_ENTRY_SIZE
ld c, CMDQUEUE_CAPACITY
.loop
ld a, [hl]
cp b
jr z, .done
add hl, de
dec c
jr nz, .loop
and a
ret
.done
xor a
ld [hl], a
scf
ret
_DelCmdQueue:
ld hl, CMDQUEUE_TYPE
add hl, bc
ld [hl], 0
ret
HandleQueuedCommand:
ld hl, CMDQUEUE_TYPE
add hl, bc
ld a, [hl]
cp NUM_CMDQUEUE_TYPES
jr c, .okay
xor a
.okay
ld e, a
ld d, 0
ld hl, .Jumptable
add hl, de
add hl, de
add hl, de
ld a, [hli]
push af
ld a, [hli]
ld h, [hl]
ld l, a
pop af
rst FarCall
ret
.Jumptable:
dba CmdQueue_Null
dba CmdQueue_Type1
dba CmdQueue_StoneTable
dba CmdQueue_Type3
dba CmdQueue_Type4
CmdQueueAnonymousJumptable:
ld hl, CMDQUEUE_05
add hl, bc
ld a, [hl]
pop hl
rst JumpTable
ret
CmdQueueAnonJT_Increment:
ld hl, CMDQUEUE_05
add hl, bc
inc [hl]
ret
CmdQueueAnonJT_Decrement:
ld hl, CMDQUEUE_05
add hl, bc
dec [hl]
ret
CmdQueue_Null:
ret
CmdQueue_Type1:
call Function2f3e
ret
CmdQueue_Type4:
call CmdQueueAnonymousJumptable
; anonymous dw
dw .zero
dw .one
.zero
ldh a, [hSCY]
ld hl, CMDQUEUE_04
add hl, bc
ld [hl], a
call CmdQueueAnonJT_Increment
.one
ld hl, CMDQUEUE_ADDR
add hl, bc
ld a, [hl]
dec a
ld [hl], a
jr z, .finish
and 1
jr z, .add
ld hl, CMDQUEUE_02
add hl, bc
ldh a, [hSCY]
sub [hl]
ldh [hSCY], a
ret
.add
ld hl, CMDQUEUE_02
add hl, bc
ldh a, [hSCY]
add [hl]
ldh [hSCY], a
ret
.finish
ld hl, CMDQUEUE_04
add hl, bc
ld a, [hl]
ldh [hSCY], a
call _DelCmdQueue
ret
CmdQueue_Type3:
call CmdQueueAnonymousJumptable
; anonymous dw
dw .zero
dw .one
dw .two
.zero
call .IsPlayerFacingDown
jr z, .PlayerNotFacingDown
call CmdQueueAnonJT_Increment
.one
call .IsPlayerFacingDown
jr z, .PlayerNotFacingDown
call CmdQueueAnonJT_Increment
ld hl, CMDQUEUE_02
add hl, bc
ld a, [hl]
ld [wd173], a
ret
.two
call .IsPlayerFacingDown
jr z, .PlayerNotFacingDown
call CmdQueueAnonJT_Decrement
ld hl, CMDQUEUE_03
add hl, bc
ld a, [hl]
ld [wd173], a
ret
.PlayerNotFacingDown:
ld a, $7f
ld [wd173], a
ld hl, CMDQUEUE_05
add hl, bc
ld [hl], 0
ret
.IsPlayerFacingDown:
push bc
ld bc, wPlayerStruct
call GetSpriteDirection
and a
pop bc
ret
CmdQueue_StoneTable:
ld de, wPlayerStruct
ld a, NUM_OBJECT_STRUCTS
.loop
push af
ld hl, OBJECT_SPRITE
add hl, de
ld a, [hl]
and a
jr z, .next
ld hl, OBJECT_MOVEMENTTYPE
add hl, de
ld a, [hl]
cp SPRITEMOVEDATA_STRENGTH_BOULDER
jr nz, .next
ld hl, OBJECT_NEXT_TILE
add hl, de
ld a, [hl]
call CheckPitTile
jr nz, .next
ld hl, OBJECT_DIRECTION_WALKING
add hl, de
ld a, [hl]
cp STANDING
jr nz, .next
call HandleStoneQueue
jr c, .fall_down_hole
.next
ld hl, OBJECT_LENGTH
add hl, de
ld d, h
ld e, l
pop af
dec a
jr nz, .loop
ret
.fall_down_hole
pop af
ret
|
