private List<Vector2> findNeigboursForNode(NodeController node, List<Vector2> neighbours)
{
neighbours.Clear();
Vector2 nodeLocation = node.getNodeCoordinates();
for (int xOffset = -1; xOffset<=1; xOffset++)
{
int neighbourX = (int)nodeLocation.x + xOffset;
if (neighbourX < 0 ||
neighbourX >= boardWidth) continue;
for (int yOffset = -1; yOffset<= 1; yOffset++)
{
int neighbourY = (int)nodeLocation.y + yOffset;
if(neighbourY < 0 ||
neighbourY >= boardHeight ||
(neighbourX == nodeLocation.x && neighbourY == nodeLocation.y)) continue;
Vector2 neighbourLocalCoordinates = new Vector2(neighbourX, neighbourY);
neighbours.Add (neighbourLocalCoordinates);
}
}
return neighbours;
}