v0.2.2a: refactored and tweaked placement of key items in rooms.

src/com/shatteredpixel/shatteredpixeldungeon/levels/painters/TrapsPainter.java

@@ -78,11 +78,14 @@ public class TrapsPainter extends Painter {
 	}
 	
 	private static Item prize( Level level ) {
-		
-		Item prize = level.itemToSpanAsPrize();
-		if (prize != null) {
-			return prize;
-		}
+
+        Item prize;
+
+        if (Random.Int(4) != 0){
+            prize = level.findPrizeItem();
+            if (prize != null)
+                return prize;
+        }
 		
 		prize = Generator.random( Random.oneOf(  
 			Generator.Category.WEAPON,