mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-07-11 09:29:09 +00:00
174 lines
1.9 KiB
ArmAsm
174 lines
1.9 KiB
ArmAsm
; this is a painful one
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; mostly because the tree puzzle is sort of obscure in the original
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; in original you get a match, then light it
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; also the match will burn out eventually
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;===================================
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; update backgrounds based on state
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;===================================
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cabin_update_state:
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rts
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;====================
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; safe was clicked
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;====================
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goto_safe:
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lda #CABIN_SAFE
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sta LOCATION
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jmp change_location
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;====================
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; safe was touched
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;====================
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touch_safe:
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lda CURSOR_Y
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; check if buttons
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cmp #26 ; blt
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bcc safe_buttons
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; check if handle
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cmp #34
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bcs pull_handle ; bge
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; else do nothing
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rts
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pull_handle:
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lda SAFE_HUNDREDS
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cmp #7
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bne wrong_combination
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lda SAFE_TENS
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cmp #2
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bne wrong_combination
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lda SAFE_ONES
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cmp #4
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bne wrong_combination
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lda #CABIN_OPEN_SAFE
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sta LOCATION
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jmp change_location
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wrong_combination:
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rts
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safe_buttons:
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lda CURSOR_X
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cmp #13 ; not a button
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bcc no_button
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cmp #19
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bcc hundreds_inc
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cmp #25
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bcc tens_inc
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bcs ones_inc
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no_button:
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rts
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hundreds_inc:
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sed
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lda SAFE_HUNDREDS
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clc
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adc #$1
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cld
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and #$f
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sta SAFE_HUNDREDS
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rts
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tens_inc:
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sed
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lda SAFE_TENS
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clc
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adc #$1
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cld
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and #$f
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sta SAFE_TENS
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rts
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ones_inc:
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sed
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lda SAFE_ONES
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clc
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adc #$1
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cld
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and #$f
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sta SAFE_ONES
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rts
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;==============================
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; draw the numbers on the safe
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;==============================
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draw_safe_combination:
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; hundreds digit
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lda SAFE_HUNDREDS
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and #$f
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asl
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tay
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lda number_sprites,Y
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sta INL
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lda number_sprites+1,Y
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sta INH
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lda #15
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sta XPOS
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lda #8
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sta YPOS
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jsr put_sprite_crop
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; tens digit
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lda SAFE_TENS
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and #$f
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asl
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tay
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lda number_sprites,Y
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sta INL
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lda number_sprites+1,Y
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sta INH
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lda #21
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sta XPOS
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lda #8
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sta YPOS
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jsr put_sprite_crop
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; ones digit
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lda SAFE_ONES
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and #$f
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asl
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tay
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lda number_sprites,Y
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sta INL
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lda number_sprites+1,Y
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sta INH
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lda #27
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sta XPOS
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lda #8
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sta YPOS
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jsr put_sprite_crop
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rts
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