2019-08-07 05:17:02 +00:00
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2019-08-08 04:38:55 +00:00
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DOOR_STATUS = 0
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DOOR_STATUS_OPEN = $01
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DOOR_STATUS_OPENING = $02
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DOOR_STATUS_CLOSING = $04
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DOOR_STATUS_CLOSED = $08
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DOOR_STATUS_EXPLODED = $10
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DOOR_STATUS_LOCKED = $20
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DOOR_STATUS_EXPLODING = $40
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DOOR_EXPLODE_DIR = 1
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DOOR_LEFT_TRIGGER = 2
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DOOR_RIGHT_TRIGGER = 3
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DOOR_STEP = 4
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DOOR_XPOS = 5
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DOOR_YPOS = 6
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2019-08-07 05:17:02 +00:00
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door_state:
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2019-08-08 04:38:55 +00:00
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door_state0:
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.byte $0 ; status
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.byte $0 ; explode_dir
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.byte $0 ; left_trigger
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.byte $0 ; right_trigger
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.byte $0 ; step
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draw_doors:
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lda door_state+DOOR_STATUS
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and #(DOOR_STATUS_OPEN | DOOR_STATUS_EXPLODED)
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bne done_draw_doors
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lda door_state+DOOR_STATUS
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cmp #DOOR_STATUS_CLOSED
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bne door_not_closed
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door_closed:
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lda #<door_closed_sprite
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sta INL
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lda #>door_closed_sprite
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sta INH
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jmp actually_draw_door
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door_not_closed:
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actually_draw_door:
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lda door_state+DOOR_XPOS
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sta XPOS
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lda door_state+DOOR_YPOS
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sta YPOS
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jsr put_sprite
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done_draw_doors:
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rts
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;==========================
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; handle doors
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handle_doors:
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; if closed xpos in range and phys ypos match -> opening
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; if open, xpos out of range, -> closing
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; if opening, update
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; if closing, update
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; if exploding, update
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rts
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;======================================
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;======================================
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; door sprites
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;======================================
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;======================================
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door_closed_sprite:
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.byte 1,10
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.byte $00
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.byte $00
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.byte $00
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.byte $00
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.byte $00
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.byte $00
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.byte $00
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.byte $00
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.byte $00
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.byte $00
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door_open_sprite:
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.byte 1,10
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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door_opening_sprite:
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door_closing_sprite1:
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.byte 1,10
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.byte $00
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.byte $A0
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $0A
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.byte $00
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door_closing_sprite2:
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.byte 1,10
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.byte $00
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.byte $00
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.byte $00
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $00
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.byte $00
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.byte $00
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2019-08-08 19:38:10 +00:00
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door_exploded_sprite:
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.byte 1,10
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.byte $00
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.byte $A5
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $AA
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.byte $A5
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