// Handles construction of graph. Performed once on initialization of terrain.
public void ConstructGraph()
{
for (int x = 0; x < controller.GridSizeX; x++)
{
for (int z = 0; z < controller.GridSizeZ; z++)
{
GroundTileController tileController = controller.FindGroundTileControllerByXZ(x, z);
Node node = new Node(tileController);
nodeList[x * controller.GridSizeZ + z] = node;
if (z > 0)
{
node.southNode = nodeList[x * controller.GridSizeZ + z - 1];
nodeList[x * controller.GridSizeZ + z - 1].northNode = node;
}
if (x > 0)
{
node.westNode = nodeList[(x - 1) * controller.GridSizeZ + z];
nodeList[(x - 1) * controller.GridSizeZ + z].eastNode = node;
}
}
}
}