public void SetupConnectionByDirection(int sourceIndex, Direction direction)
{
var connection = Node.Connection.NoConnection;
var node = this.GetNodeByIndex <GridNode>(sourceIndex);
var target = GridGraphUtilities.GetIndexByDirection(this, sourceIndex, direction);
if (target >= 0)
{
var targetNode = this.GetNodeByIndex <GridNode>(target);
var cost = (node.worldPosition - targetNode.worldPosition).sqrMagnitude;
connection.cost = cost * (GridGraphUtilities.IsDiagonalDirection(direction) == true ? this.diagonalCostFactor : 1f) + targetNode.penalty;
connection.index = target;
}
node.connections[(int)direction] = connection;
}