public void SubDivide()
{
float subWidth = ((Bounds.Max - Bounds.Min) / 4).X;
float subHeight = ((Bounds.Max - Bounds.Min) / 4).Y;
subHeight = subWidth;
//upper
var nodeUFR = new OcTree(new Vector3(Center.X + subWidth, Center.Y - subWidth, Center.Z + subWidth), Size / 2);
var nodeUFL = new OcTree(new Vector3(Center.X - subWidth, Center.Y - subWidth, Center.Z + subWidth), Size / 2);
var nodeUBR = new OcTree(new Vector3(Center.X + subWidth, Center.Y - subWidth, Center.Z - subWidth), Size / 2);
var nodeUBL = new OcTree(new Vector3(Center.X - subWidth, Center.Y - subWidth, Center.Z - subWidth), Size / 2);
//lower
var nodeLFR = new OcTree(new Vector3(Center.X + subWidth, Center.Y + subWidth, Center.Z + subWidth), Size / 2);
var nodeLFL = new OcTree(new Vector3(Center.X - subWidth, Center.Y + subWidth, Center.Z + subWidth), Size / 2);
var nodeLBR = new OcTree(new Vector3(Center.X + subWidth, Center.Y + subWidth, Center.Z - subWidth), Size / 2);
var nodeLBL = new OcTree(new Vector3(Center.X - subWidth, Center.Y + subWidth, Center.Z - subWidth), Size / 2);
//upper
Nodes.Add(nodeUFR);
Nodes.Add(nodeUFL);
Nodes.Add(nodeUBR);
Nodes.Add(nodeUBL);
//lower
Nodes.Add(nodeLFR);
Nodes.Add(nodeLFL);
Nodes.Add(nodeLBR);
Nodes.Add(nodeLBL);
foreach (var node in Nodes)
{
DebugEngine.AddBoundingBox(node.Bounds, Color.Yellow, 1000);
}
}
public QuadTree(float size, Vector2 position, int maxObjects)
{
Size = size;
Position = position;
MaxObjects = maxObjects;
Objects = new List <GameObject3D>();
Nodes = new List <QuadTree>();
float halfSize = size / 2;
Vector3 min = new Vector3(position.X - halfSize, position.Y - halfSize, 0);
Vector3 max = new Vector3(position.X + halfSize, position.Y + halfSize, 0);
Bounds = new BoundingBox(min, max);
DebugEngine.AddBoundingBox(Bounds, Color.Red, 1000);
DebugEngine.AddBoundingSphere(new BoundingSphere(new Vector3(position, 0), 1), Color.Black, 1000);
}
public Octree(float size, Vector3 position, int maxObjects)
{
Size = size;
Position = position;
MaxObjects = maxObjects;
Objects = new List <GameObject3D>();
Nodes = new List <Octree>();
//TODO: create bounds of given size at given position
float halfSize = size / 2;
Vector3 min = new Vector3(position.X - halfSize, position.Y - halfSize, position.Z - halfSize);
Vector3 max = new Vector3(position.X + halfSize, position.Y + halfSize, position.Z + halfSize);
Bounds = new BoundingBox(min, max);
DebugEngine.AddBoundingBox(Bounds, Color.LimeGreen, 1000);
DebugEngine.AddBoundingSphere(new BoundingSphere(new Vector3(position.X, position.Y, position.Z), 1), Color.Black, 1000);
}
