Fixed mirror portals showing up in DW

asm/owrando.asm

@@ -148,6 +148,7 @@ OWPreserveMirrorSprite:
 {
     lda.l OWMode+1 : and.b #!FLAG_OW_CROSSED : beq .vanilla
         rtl ; if OW Crossed, skip world check and continue
+    
     .vanilla
     lda InvertedMode : beq +
         lda $7ef3ca : beq .deleteMirror
@@ -410,6 +411,14 @@ OWWorldUpdate: ; x = owid of destination screen
 {
     lda.l OWTileWorldAssoc,x : cmp.l $7ef3ca : beq .return
         sta.l $7ef3ca ; change world
+
+        ; moving mirror portal off screen when in DW
+        cmp #0 : beq + : lda #1
+        + cmp.l InvertedMode : bne +
+            lda $1acf : and #$0f : sta $1acf : bra .playSfx ; bring portal back into position
+        + lda $1acf : eor #$80 : sta $1acf ; move portal off screen
+        
+        .playSfx
         lda #$38 : sta $012f ; play sfx - #$3b is an alternative
 
         ; toggle bunny mode