MapGridIsImpassableAt -> MapGridGetCollisionAt, and add fixes

src/rotating_gate.c

@@ -874,7 +874,12 @@ static s32 RotatingGate_CanRotate(u8 gateId, s32 rotationDirection)
 
             if (sRotatingGate_ArmLayout[shape][2 * i + j])
             {
-                if (MapGridIsImpassableAt(x + armPos[armIndex].x, y + armPos[armIndex].y) == TRUE)
+            #ifdef BUGFIX
+                // Collision has a range 0-3, any value != 0 is impassable
+                if (MapGridGetCollisionAt(x + armPos[armIndex].x, y + armPos[armIndex].y))
+            #else
+                if (MapGridGetCollisionAt(x + armPos[armIndex].x, y + armPos[armIndex].y) == 1)
+            #endif
                     return FALSE;
             }
         }