v0.3.2: fully implemented elemental embers quest

src/com/shatteredpixel/shatteredpixeldungeon/levels/RegularLevel.java

@@ -171,7 +171,7 @@ public abstract class RegularLevel extends Level {
 	protected void placeSign(){
 		while (true) {
 			int pos = roomEntrance.random();
-			if (pos != entrance && traps.get(pos) == null) {
+			if (pos != entrance && traps.get(pos) == null && findMob(pos) == null) {
 				map[pos] = Terrain.SIGN;
 				break;
 			}

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

@@ -34,8 +34,10 @@ public class EntrancePainter extends Painter {
 		for (Room.Door door : room.connected.values()) {
 			door.set( Room.Door.Type.REGULAR );
 		}
-		
-		level.entrance = room.random( 1 );
+
+		do {
+			level.entrance = room.random(1);
+		} while (level.findMob(level.entrance) != null);
 		set( level, level.entrance, Terrain.ENTRANCE );
 	}