dos33fsprogs/duke/item_level1.s
2020-12-17 18:57:46 -05:00

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