@@ -0,0 +1,736 @@
+public class TileId%0A%7B%0A    public static final int EMPTY = 0;%0A    public static final int WALL = 1;%0A    public static final int BLOCK = 2;%0A    public static final int HORIZONTAL = 3;%0A    public static final int BALL = 4;%0A%0A    public static final String idToString (int id)%0A    %7B%0A        switch (id)%0A        %7B%0A            case EMPTY:%0A                return %22empty%22;%0A            case WALL:%0A                return %22wall%22;%0A            case BLOCK:%0A                return %22block%22;%0A            case HORIZONTAL:%0A                return %22horizontal%22;%0A            case BALL:%0A                return %22ball%22;%0A            default:%0A                return %22unknown%22;%0A        %7D%0A    %7D%0A    %0A    private TileId ()%0A    %7B%0A        // stop instantiation.%0A    %7D%0A%7D

Create TileId.java