mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-11-16 23:20:43 +00:00
50 lines
619 B
ArmAsm
50 lines
619 B
ArmAsm
|
|
;==================
|
|
; check for items
|
|
;==================
|
|
; X holds ??
|
|
check_item:
|
|
|
|
|
|
check_red_key:
|
|
lda TILEMAP,X
|
|
cmp #31 ; red key
|
|
bne check_blue_key
|
|
|
|
jsr pickup_noise
|
|
lda INVENTORY
|
|
ora #INV_RED_KEY
|
|
sta INVENTORY
|
|
|
|
; erase red key (304,96)
|
|
lda #0
|
|
sta $A938 ; hack
|
|
|
|
jsr copy_tilemap_subset
|
|
|
|
jsr update_status_bar
|
|
|
|
jmp done_check_item
|
|
|
|
check_blue_key:
|
|
cmp #30 ; blue key
|
|
bne done_check_item
|
|
|
|
jsr pickup_noise
|
|
lda INVENTORY
|
|
ora #INV_BLUE_KEY
|
|
sta INVENTORY
|
|
|
|
; erase blue key
|
|
lda #0
|
|
sta $970c ; hack
|
|
|
|
jsr copy_tilemap_subset
|
|
|
|
jsr update_status_bar
|
|
|
|
jmp duke_check_head
|
|
|
|
done_check_item:
|
|
rts
|