Shuffle in-room stairs

2021-01-30 00:07:50 +01:00
parent a9bddea1b4
commit dab4d58f12
8 changed files with 284 additions and 17 deletions
--- a/scroll.asm
+++ b/scroll.asm
@@ -203,4 +203,18 @@ ApplyScroll:
    .end
    sta $00e2, y
    sta $00e0, y
-    stz $ab : sep #$30 : rts
+    stz $ab : sep #$30 : rts
+
+QuadrantLoadOrderBeforeScroll:
+    lda $045f : beq .end
+    lda #$08 : sta $045c ; start with opposite quadrant row
+    .end
+    jsl $0091c4 ; what we overwrote
+    rtl
+
+QuadrantLoadOrderAfterScroll:
+    lda $045f : beq .end
+    stz $045c : stz $045f ; draw other row and clear flag
+    .end
+    jsl $0091c4 ; what we overwrote
+    rtl