402 lines
6.9 KiB
ArmAsm
402 lines
6.9 KiB
ArmAsm
DOOR_STATUS_OPENING1 = $00
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DOOR_STATUS_OPENING2 = $01
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DOOR_STATUS_OPEN = $02
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DOOR_STATUS_CLOSING1 = $03
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DOOR_STATUS_CLOSING2 = $04
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DOOR_STATUS_CLOSED = $05
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DOOR_STATUS_EXPLODED = $06
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DOOR_STATUS_LOCKED = $07
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DOOR_STATUS_EXPLODING1 = $08
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DOOR_STATUS_EXPLODING2 = $09
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DOOR_STATUS_EXPLODING3 = $0A
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DOOR_STATUS_EXPLODING4 = $0B
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DOOR_STATUS_EXPLODING5 = $0C
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DOOR_STATUS_EXPLODING6 = $0D
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;==================================
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; draw_doors
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;==================================
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; be sure to smc to point to right place
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draw_doors:
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lda NUM_DOORS
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beq done_draw_doors
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ldy #0
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draw_doors_loop:
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lda (DOOR_STATUS),Y
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tax
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lda door_sprite_lookup_lo,X
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sta INL
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lda door_sprite_lookup_hi,X
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sta INH
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actually_draw_door:
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lda (DOOR_X),Y
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sta XPOS
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lda (DOOR_Y),Y
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sta YPOS
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tya
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pha
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lda (DOOR_STATUS),Y
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cmp #DOOR_STATUS_EXPLODING1
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bcs draw_exploding_door
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jsr put_sprite_crop
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after_door_put_sprite:
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pla
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tay
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draw_doors_continue:
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iny
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cpy NUM_DOORS
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bne draw_doors_loop
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done_draw_doors:
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rts
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draw_exploding_door:
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lda FRAMEL
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and #$7
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bne not_done_exploding_door
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lda (DOOR_STATUS),Y
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clc
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adc #1
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sta (DOOR_STATUS),Y
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cmp #DOOR_STATUS_EXPLODING6
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bcc not_done_exploding_door
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lda #DOOR_STATUS_EXPLODED
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sta (DOOR_STATUS),Y
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not_done_exploding_door:
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dec XPOS
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jsr put_sprite_crop
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jmp after_door_put_sprite
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;==========================
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;==========================
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; handle doors
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;==========================
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;==========================
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handle_doors:
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lda NUM_DOORS
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beq done_handle_doors
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ldy #0
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handle_doors_loop:
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; state machine
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lda (DOOR_STATUS),Y
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; if locked->do nothing
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cmp #DOOR_STATUS_LOCKED
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beq handle_doors_continue
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; if exploded->do nothing
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cmp #DOOR_STATUS_EXPLODED
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beq handle_doors_continue
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; if closed and xpos/ypos in range: open
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; if open and xpos/ypos not ni range: close
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cmp #DOOR_STATUS_OPEN
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beq handle_doors_open
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cmp #DOOR_STATUS_CLOSED
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beq handle_doors_closed
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; if exploding: continue exploding
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; we handle the increment elsewhere
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cmp #DOOR_STATUS_EXPLODING1
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bcs handle_doors_continue ; bge
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; if opening, continue to open
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; if closing, continue to close
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handle_door_inc_state:
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lda (DOOR_STATUS),Y
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clc
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adc #1
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sta (DOOR_STATUS),Y
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handle_doors_continue:
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iny
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cpy NUM_DOORS
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bne handle_doors_loop
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done_handle_doors:
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rts
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handle_doors_open:
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; only open/close if on same level
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lda (DOOR_Y),Y
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clc
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adc #4
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cmp PHYSICIST_Y
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bne close_door
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lda PHYSICIST_X
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cmp (DOOR_XMAX),Y
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bcs close_door ; bge
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cmp (DOOR_XMIN),Y
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bcc close_door ; blt
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; made it here, we are in bounds, stay open
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jmp handle_doors_continue
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close_door:
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lda #DOOR_STATUS_CLOSING1
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sta (DOOR_STATUS),Y
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jmp handle_doors_continue
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handle_doors_closed:
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; only open if on same level
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lda (DOOR_Y),Y
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clc
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adc #4
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cmp PHYSICIST_Y
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bne handle_doors_continue
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lda PHYSICIST_X
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cmp (DOOR_XMAX),Y
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bcs handle_doors_continue
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cmp (DOOR_XMIN),Y
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bcc handle_doors_continue
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open_door:
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lda #DOOR_STATUS_OPENING1
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sta (DOOR_STATUS),Y
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jmp handle_doors_continue
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;====================
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;====================
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; setup door table
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;====================
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;====================
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setup_door_table:
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ldx #9
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setup_door_table_loop:
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setup_door_table_loop_smc:
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lda $1000,X
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sta DOOR_STATUS,X
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dex
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bpl setup_door_table_loop
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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_sprite_lookup_lo:
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.byte <door_opening_sprite1 ; DOOR_STATUS_OPENING1
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.byte <door_opening_sprite2 ; DOOR_STATUS_OPENING2
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.byte <door_open_sprite ; DOOR_STATUS_OPEN
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.byte <door_closing_sprite1 ; DOOR_STATUS_CLOSING1
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.byte <door_closing_sprite2 ; DOOR_STATUS_CLOSING2
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.byte <door_closed_sprite ; DOOR_STATUS_CLOSED
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.byte <door_exploded_sprite ; DOOR_STATUS_EXPLODED
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.byte <door_closed_sprite ; DOOR_STATUS_LOCKED
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.byte <door_exploding_sprite1 ; DOOR_STATUS_EXPLODING1
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.byte <door_exploding_sprite2 ; DOOR_STATUS_EXPLODING2
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.byte <door_exploding_sprite3 ; DOOR_STATUS_EXPLODING3
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.byte <door_exploding_sprite4 ; DOOR_STATUS_EXPLODING4
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.byte <door_exploding_sprite5 ; DOOR_STATUS_EXPLODING5
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.byte <door_exploding_sprite6 ; DOOR_STATUS_EXPLODING6
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door_sprite_lookup_hi:
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.byte >door_opening_sprite1 ; DOOR_STATUS_OPENING1
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.byte >door_opening_sprite2 ; DOOR_STATUS_OPENING2
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.byte >door_open_sprite ; DOOR_STATUS_OPEN
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.byte >door_closing_sprite1 ; DOOR_STATUS_CLOSING1
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.byte >door_closing_sprite2 ; DOOR_STATUS_CLOSING2
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.byte >door_closed_sprite ; DOOR_STATUS_CLOSED
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.byte >door_exploded_sprite ; DOOR_STATUS_EXPLODED
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.byte >door_closed_sprite ; DOOR_STATUS_LOCKED
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.byte >door_exploding_sprite1 ; DOOR_STATUS_EXPLODING1
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.byte >door_exploding_sprite2 ; DOOR_STATUS_EXPLODING2
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.byte >door_exploding_sprite3 ; DOOR_STATUS_EXPLODING3
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.byte >door_exploding_sprite4 ; DOOR_STATUS_EXPLODING4
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.byte >door_exploding_sprite5 ; DOOR_STATUS_EXPLODING5
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.byte >door_exploding_sprite6 ; DOOR_STATUS_EXPLODING6
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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_sprite2:
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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_opening_sprite1:
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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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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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door_exploding_sprite1:
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.byte 3,10
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.byte $AA,$FF,$66
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.byte $AA,$FF,$66
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.byte $AA,$FF,$AA
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.byte $AA,$FF,$AA
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.byte $AA,$FF,$AA
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.byte $AA,$FF,$AA
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.byte $AA,$FF,$AA
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.byte $AA,$FF,$AA
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.byte $AA,$FF,$66
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.byte $AA,$FF,$66
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door_exploding_sprite2:
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.byte 3,10
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.byte $AA,$FF,$EE
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.byte $AA,$FF,$EE
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.byte $EE,$FF,$EE
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.byte $FF,$FF,$EE
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.byte $FF,$FF,$EE
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.byte $FF,$FF,$EE
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.byte $EE,$FF,$EE
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.byte $AA,$FF,$EE
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.byte $AA,$FF,$EE
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.byte $AA,$FF,$EE
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door_exploding_sprite3:
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.byte 3,10
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.byte $AA,$00,$AA
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.byte $AA,$A5,$AA
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.byte $FF,$AA,$AA
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.byte $FF,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $FF,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$A5,$AA
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door_exploding_sprite4:
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.byte 3,10
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.byte $AA,$00,$AA
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.byte $AA,$A5,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $FF,$AA,$AA
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.byte $FF,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $FF,$AA,$AA
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.byte $AA,$A5,$AA
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door_exploding_sprite5:
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.byte 3,10
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.byte $AA,$00,$AA
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.byte $AA,$A5,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $FA,$AA,$AA
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.byte $AF,$A5,$AA
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door_exploding_sprite6:
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.byte 3,10
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.byte $AA,$00,$AA
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.byte $AA,$A5,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $AA,$AA,$AA
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.byte $FA,$AA,$AA
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.byte $AF,$A5,$AA
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