private void CreateVisualizationForQuadRecursive(QuadTreeNode node)
{
var rectangle = new Rectangle
{
Stroke = Brushes.Black,
StrokeThickness = 0.08,
Width = node.Size,
Height = node.Size,
IsHitTestVisible = false
};
this.canvasChildren.Add(rectangle);
Canvas.SetLeft(rectangle, node.Position.X);
Canvas.SetTop(rectangle, node.Position.Y);
for (byte subNodeIndex = 0; subNodeIndex < 4; subNodeIndex++)
{
var subNode = node.GetSubNode((QuadTreeNode.SubNodeIndex)subNodeIndex);
if (subNode != null)
{
this.CreateVisualizationForQuadRecursive(subNode);
}
}
}
private void DestroySubNode(SubNodeIndex subNodeIndex)
{
switch (subNodeIndex)
{
case SubNodeIndex.BottomLeft:
this.subNodeBottomLeft = null;
break;
case SubNodeIndex.BottomRight:
this.subNodeBottomRight = null;
break;
case SubNodeIndex.TopLeft:
this.subNodeTopLeft = null;
break;
case SubNodeIndex.TopRight:
this.subNodeTopRight = null;
break;
default:
throw new ArgumentOutOfRangeException(nameof(subNodeIndex), subNodeIndex, null);
}
}
private void CreateQuadTree()
{
this.quadTreeRoot = new QuadTreeNode(new Vector2Int(0, 0), CanvasSize);
}