/// <summary>
/// Splits the node into 4 subnodes.
/// </summary>
private void Split()
{
float subWidth = (Bounds.Width / 2);
float subHeight = (Bounds.Height / 2);
float x = Bounds.X;
float y = Bounds.Y;
Nodes[0] = new QuadTree(Level + 1, new RectangleF(x + subWidth, y, subWidth, subHeight));
Nodes[1] = new QuadTree(Level + 1, new RectangleF(x, y, subWidth, subHeight));
Nodes[2] = new QuadTree(Level + 1, new RectangleF(x, y + subHeight, subWidth, subHeight));
Nodes[3] = new QuadTree(Level + 1, new RectangleF(x + subWidth, y + subHeight, subWidth, subHeight));
}
public void InitBase()
{
VIEWPORT = new ViewportF(0, 0, Config.SCREEN_WIDTH, Config.SCREEN_HEIGHT);
GAME_AREA_SIZE = new RectangleF(0, 0, Config.SCREEN_WIDTH, Config.SCREEN_HEIGHT);
ViewportIDMatrix = Matrix.Identity;
ViewportIDMatrixMirror = new Matrix3x2();
ViewportIDMatrixMirror.M11 = -1; ViewportIDMatrixMirror.M12 = 0;
ViewportIDMatrixMirror.M21 = 0; ViewportIDMatrixMirror.M22 = 1;
ViewportIDMatrixMirror.M31 = 0; ViewportIDMatrixMirror.M32 = 0;
Entities = new List<BaseEntity>();
VisibleEntities = new List<BaseEntity>();
CollidableEntities = new List<BaseEntity>();
Initialize();
GameCamera = Camera.GetInstance();
Quad = new QuadTree(0, GAME_AREA_SIZE);
}