/**
* Find a tile for a given global tile id
*
* @param gid The global tile id we're looking for
* @return The tileset in which that tile lives or null if the gid is not defined
*/
public TileSet findTileSet(int gid) {
for (int i = 0; i < tileSets.size(); i++) {
TileSet set = (TileSet) tileSets.get(i);
if (set.contains(gid)) {
return set;
}
}
return null;
}
