internal bool RemoveModel(QuadTreeModelInfo modelInfo)
{
if (_models.Contains(modelInfo)) {
_models.Remove(modelInfo);
return true;
}
return false;
}
internal bool AddModel(QuadTreeModelInfo modelInfo)
{
if (_models == null) {
return false;
}
if (modelInfo._position.X >= m_startX && modelInfo._position.X < m_endX) {
if (modelInfo._position.Z >= m_startY && modelInfo._position.Z < m_endY) {
// it belongs to this instance or a child
if (children != null)
{
for (int i = 0; i < 4; i++)
{
if (children[i] != null)
{
if (children[i].AddModel(modelInfo))
return true;
}
}
}
// up to us to store it
if (modelInfo._position.Y == 0) {
modelInfo._position.Y = GetHeightAt(modelInfo._position.X, modelInfo._position.Z);
}
modelInfo._node = this;
_models.Add(modelInfo);
return true;
}
}
return false;
}
public Player(Game game)
: base(game)
{
_playerModel = new QuadTreeModelInfo(game.Content.Load<Model>("Content\\BabyBeholder"), position, 1.0f, Vector3.Zero);
_playerCamera = new PlayerCamera();
}
/// <summary>
/// Lets the QuadTree know of the new position of a model
/// </summary>
/// <param name="modelInfo">ModelInfo object returned from AddModel</param>
/// <param name="position">where to put the model</param>
public void UpdateModelPosition(QuadTreeModelInfo modelInfo, Vector3 position)
{
if (_valid && _root != null) {
if (modelInfo != null) {
if (modelInfo._node != null) {
modelInfo._node.RemoveModel(modelInfo);
}
modelInfo._position = position;
_root.AddModel(modelInfo);
}
}
}
/// <summary>
/// Removes a model and it's associated data from the terrain
/// Returns the Model that was contained in the QuadTreeModelInfo,
/// or null if modelInfo is null or contains a null Model reference.
/// </summary>
/// <param name="modelInfo">A QuadtreeModelInfo object returned from AddModel()</param>
public Model RemoveModel(QuadTreeModelInfo modelInfo)
{
if (modelInfo != null) {
if (modelInfo._node != null) {
modelInfo._node.RemoveModel(modelInfo);
}
return modelInfo._model;
}
return null;
}
/// <summary>
/// Add a model to the terrain.
/// Returns null if not on terrain or QuadTree not created.
/// </summary>
/// <param name="model">Model to add</param>
/// <param name="position">where to put the model</param>
/// <param name="scale">scaling</param>
/// <param name="rotation">orientation, rotation about the Y/Up axis</param>
public QuadTreeModelInfo AddModel(Model model, Vector3 position, float scale, Vector3 rotation)
{
if (_valid && _root != null) {
QuadTreeModelInfo modelInfo = new QuadTreeModelInfo(model, position, scale, rotation);
if (_root.AddModel(modelInfo)) //position, scale, rotationY, model);
return modelInfo;
}
return null;
}
