/// <summary>
/// Update collection is called from the editor button on the inspector.
/// This function rebuilds / updates the layout.
/// </summary>
public void UpdateCollection()
{
// Check for empty nodes and remove them
List <CollectionLayoutNode> emptyNodes = new List <CollectionLayoutNode>();
for (int i = 0; i < NodeList.Count; i++)
{
if (NodeList[i].transform == null || (!NodeList[i].transform.gameObject.activeSelf) || NodeList[i].transform.parent == null || !(NodeList[i].transform.parent.gameObject == this.gameObject))
{
emptyNodes.Add(NodeList[i]);
}
}
// Now delete the empty nodes
for (int i = 0; i < emptyNodes.Count; i++)
{
NodeList.Remove(emptyNodes[i]);
}
emptyNodes.Clear();
// Check when children change and adjust
for (int i = 0; i < this.transform.childCount; i++)
{
Transform child = this.transform.GetChild(i);
if (!ContainsNode(child) && child.gameObject.activeSelf)
{
CollectionLayoutNode node = new CollectionLayoutNode();
node.Name = child.name;
node.transform = child;
NodeList.Add(node);
}
}
if (LayoutType == CollectionLayoutType.Grid)
{
_columns = _rows = Mathf.CeilToInt(Mathf.Sqrt((float)NodeList.Count));
}
else if (LayoutType == CollectionLayoutType.Stacked)
{
_columns = 1;
_rows = NodeList.Count;
}
Width = _columns * CellWidth;
Height = _rows * CellHeight;
_halfCell = new Vector2(CellWidth * 0.5f, CellHeight * 0.5f);
LayoutChildren();
if (OnCollectionUpdated != null)
{
OnCollectionUpdated.Invoke(this);
}
}
/// <summary>
/// Update the facing of a node given the nodes new position for facing orign with node and orientation type
/// </summary>
/// <param name="node"></param>
/// <param name="orientType"></param>
/// <param name="newPos"></param>
private void UpdateNodeFacing(CollectionLayoutNode node, Vector3 newPos = default(Vector3))
{
Vector3 centerAxis;
Vector3 pointOnAxisNearestNode;
switch (NodeOrientation)
{
case NodeOrientationTypeEnum.FaceOrigin:
node.transform.rotation = Quaternion.LookRotation(node.transform.position - this.transform.position, this.transform.up);
break;
case NodeOrientationTypeEnum.FaceOriginReversed:
node.transform.rotation = Quaternion.LookRotation(this.transform.position - node.transform.position, this.transform.up);
break;
case NodeOrientationTypeEnum.FaceCenterAxis:
centerAxis = Vector3.Project(node.transform.position - this.transform.position, this.transform.up);
pointOnAxisNearestNode = this.transform.position + centerAxis;
node.transform.rotation = Quaternion.LookRotation(node.transform.position - pointOnAxisNearestNode, this.transform.up);
break;
case NodeOrientationTypeEnum.FaceCenterAxisReversed:
centerAxis = Vector3.Project(node.transform.position - this.transform.position, this.transform.up);
pointOnAxisNearestNode = this.transform.position + centerAxis;
node.transform.rotation = Quaternion.LookRotation(pointOnAxisNearestNode - node.transform.position, this.transform.up);
break;
case NodeOrientationTypeEnum.FaceFoward:
node.transform.forward = transform.rotation * Vector3.forward;
break;
case NodeOrientationTypeEnum.FaceForwardReversed:
node.transform.forward = transform.rotation * Vector3.back;
break;
case NodeOrientationTypeEnum.FaceParentUp:
node.transform.forward = transform.rotation * Vector3.up;
break;
case NodeOrientationTypeEnum.FaceParentDown:
node.transform.forward = transform.rotation * Vector3.down;
break;
case NodeOrientationTypeEnum.None:
break;
default:
throw new ArgumentOutOfRangeException();
}
}