--- miscJava/bukkit-minecraft-plugins/HoerupUtils/src/dk/thoerup/bukkit/hoeruputils/secretdoor/Door.java	2011/06/27 19:34:03	1533
+++ miscJava/bukkit-minecraft-plugins/HoerupUtils/src/dk/thoerup/bukkit/hoeruputils/secretdoor/Door.java	2011/06/27 19:43:33	1534
@@ -27,7 +27,7 @@
 	int height;
 	
 
-	public Door(Block sign, int width, int height) {
+	public Door(Block sign, int width, int height, DoorStorage store) throws ConflictingDoorException{
 		leftUpper = sign.getLocation().clone();
 		
 		this.width = width;
@@ -57,6 +57,16 @@
 		material = leftUpper.getBlock().getTypeId();
 		
 		loadBlocks();
+		
+		
+		for (int w=0; w<width; w++) {
+			for (int h=0; h<height; h++) {
+				Door d = store.findDoor( blocks[w][h] );
+				if (d != null) {
+					throw new ConflictingDoorException();
+				}
+			}
+		}
 
 	}