v2.2.0: the DM-300 fight now have a guaranteed safe path to each pylon

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/CavesBossLevel.java

@@ -168,6 +168,17 @@ public class CavesBossLevel extends Level {
 		customVisuals.setRect(0, 12, width(), 27);
 		customTiles.add(customVisuals);
 
+		//ensures that all pylons can be reached without stepping over water or wires
+		boolean[] pass = new boolean[length];
+		for (int i = 0; i < length; i++){
+			pass[i] = map[i] == Terrain.EMPTY || map[i] == Terrain.EMPTY_SP || map[i] == Terrain.EMPTY_DECO;
+		}
+		PathFinder.buildDistanceMap(16 + 25*width(), pass);
+		for (int i : pylonPositions){
+			if (PathFinder.distance[i] == Integer.MAX_VALUE){
+				return false;
+			}
+		}
 		return true;
 
 	}