dos33fsprogs/ootw/door.s

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ArmAsm
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2019-08-07 05:17:02 +00:00
2019-08-08 04:38:55 +00:00
DOOR_STATUS = 0
DOOR_STATUS_OPEN = $01
DOOR_STATUS_OPENING = $02
DOOR_STATUS_CLOSING = $04
DOOR_STATUS_CLOSED = $08
DOOR_STATUS_EXPLODED = $10
DOOR_STATUS_LOCKED = $20
DOOR_STATUS_EXPLODING = $40
DOOR_EXPLODE_DIR = 1
DOOR_LEFT_TRIGGER = 2
DOOR_RIGHT_TRIGGER = 3
DOOR_STEP = 4
DOOR_XPOS = 5
DOOR_YPOS = 6
2019-08-07 05:17:02 +00:00
door_state:
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door_state0:
.byte $0 ; status
.byte $0 ; explode_dir
.byte $0 ; left_trigger
.byte $0 ; right_trigger
.byte $0 ; step
draw_doors:
lda door_state+DOOR_STATUS
and #(DOOR_STATUS_OPEN | DOOR_STATUS_EXPLODED)
bne done_draw_doors
lda door_state+DOOR_STATUS
cmp #DOOR_STATUS_CLOSED
bne door_not_closed
door_closed:
lda #<door_closed_sprite
sta INL
lda #>door_closed_sprite
sta INH
jmp actually_draw_door
door_not_closed:
actually_draw_door:
lda door_state+DOOR_XPOS
sta XPOS
lda door_state+DOOR_YPOS
sta YPOS
jsr put_sprite
done_draw_doors:
rts
;==========================
; handle doors
handle_doors:
; if closed xpos in range and phys ypos match -> opening
; if open, xpos out of range, -> closing
; if opening, update
; if closing, update
; if exploding, update
rts
;======================================
;======================================
; door sprites
;======================================
;======================================
door_closed_sprite:
.byte 1,10
.byte $00
.byte $00
.byte $00
.byte $00
.byte $00
.byte $00
.byte $00
.byte $00
.byte $00
.byte $00
door_open_sprite:
.byte 1,10
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
door_opening_sprite:
door_closing_sprite1:
.byte 1,10
.byte $00
.byte $A0
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $0A
.byte $00
door_closing_sprite2:
.byte 1,10
.byte $00
.byte $00
.byte $00
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $00
.byte $00
.byte $00
door_exploded_sprite:
.byte 1,10
.byte $00
.byte $A5
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $A5