/// <summary>
/// Intializes an instance of the <see cref="SceneGraph"/> class.
/// </summary>
/// <param name="device">The <see cref="GraphicsDevice"/> that will be used for rendering.</param>
public DGuiSceneGraph(Game game)
: base(game)
{
rootNode = new DGuiSceneNode(game);
//camera = new Camera();
//camera.Position = new Vector3(0, 0, 400);
}
public DGuiManager(Game game, SpriteBatch spriteBatch)
: base(game)
{
_game = game;
_sceneGraph = new DGuiSceneGraph(game);
_controlsSceneNode = new DGuiSceneNode(game);
_foregroundSceneNode = new DGuiSceneNode(game);
_controlTextSceneNode = new DGuiSceneNode(game);
_foregroundTextSceneNode = new DGuiSceneNode(game);
_sceneGraph.RootNode.Children.Add(_controlsSceneNode);
_sceneGraph.RootNode.Children.Add(_controlTextSceneNode);
_sceneGraph.RootNode.Children.Add(_foregroundSceneNode);
_sceneGraph.RootNode.Children.Add(_foregroundTextSceneNode);
_spriteBatch = spriteBatch;
}
void UpdateRecursive(GameTime time, DGuiSceneNode node)
{
//Update node
node.Update(time);
// Set update index, for height calculations
_updateIndex++;
node.UpdateIndex = _updateIndex;
//Update children recursively
for (int i = 0; i < node.Children.Count; i++) // (SceneNode childNode in node.Children)
{
UpdateRecursive(time,node.Children[i]);
}
}
void RemoveNodeRecursive(DGuiSceneNode node, DGuiSceneNode removeNode)
{
// Depth-first remove
for (int i = 0; i < node.Children.Count; i++)
{
DGuiSceneNode childNode = node.Children[i];
if (childNode == removeNode)
{
node.Children.Remove(childNode);
break;
}
else
RemoveNodeRecursive(childNode, removeNode);
}
}
int NodeCountRecursive(DGuiSceneNode node, int count)
{
count += node.Children.Count;
foreach (DGuiSceneNode childNode in node.Children)
{
count = NodeCountRecursive(childNode, count);
}
return count;
}
void DrawRecursive(GameTime gameTime, DGuiSceneNode node)
{
//Draw
if (node.Visible || node.AlwaysVisible)
{
node.Draw(gameTime);
for (int i = 0; i < node.Children.Count; i++)
{
DrawRecursive(gameTime, node.Children[i]);
}
}
}
void CalculateTransformsRecursive(GameTime time, DGuiSceneNode node)
{
node.AbsoluteTransform += new Vector3(node.Position.X, node.Position.Y, node.Rotation);
for (int i = 0; i < node.Children.Count; i++) // (SceneNode childNode in node.Children)
{
node.Children[i].AbsoluteTransform = node.AbsoluteTransform;
CalculateTransformsRecursive(time, node.Children[i]);
}
}
public void RemoveNode(DGuiSceneNode node)
{
RemoveNodeRecursive(rootNode, node);
}
public void InsertNode(DGuiSceneNode node, DGuiSceneNode parentNode)
{
if (parentNode != null)
{
parentNode.Children.Add(node);
}
else
{
rootNode.Children.Add(node);
}
}