public void setNodesInRoom() { foreach (GameObject g in WorldBuilder.me.worldTiles) { if (g == null) { } else { WorldTile wt = g.GetComponent <WorldTile> (); if (wt.walkable == true) { RoomScript r = getRoomObjectIsIn(g); if (r == null) { } else { r.addNodesToRoom(g); } } } } }