From d27c9c0ec46341a2156c5c96e2adea6b6830fbaa Mon Sep 17 00:00:00 2001
From: IntelOrca <ted@brambles.org>
Date: Sat, 27 Feb 2016 13:14:26 +0000
Subject: [PATCH] fix #3026: can construct maze when its open

---
 src/windows/maze_construction.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/windows/maze_construction.c b/src/windows/maze_construction.c
index 1e0667a067..3b304e0c4f 100644
--- a/src/windows/maze_construction.c
+++ b/src/windows/maze_construction.c
@@ -291,6 +291,12 @@ static void window_maze_construction_mousedown(int widgetIndex, rct_window *w, r
  */
 static void window_maze_construction_update(rct_window *w)
 {
+	rct_ride *ride = get_ride(_currentRideIndex);
+	if (ride == NULL || ride->status != RIDE_STATUS_CLOSED) {
+		window_close(w);
+		return;
+	}
+
 	switch (_rideConstructionState) {
 	case RIDE_CONSTRUCTION_STATE_PLACE:
 		if (!widget_is_active_tool(w, WIDX_MAZE_DIRECTION_GROUPBOX)) {