public void genIslands(int dimX_, int dimY_) {
this.dimX = dimX_;
this.dimY = dimY_;
WorldGen wg = new WorldGen (tilesToUse);
localArray = wg.islands (dimX, dimY, 25, 4);
Debug.Log ("Generated islands...");
Debug.Log (getTileIDArray ());
grid = wg.getGrid ();
}