public static void Draw(SceneGraphNode node)
{
if (DoInstantDraw)
InstantDraw(node);
else
DeferedDraw(node);
}
public void AddChild(SceneGraphNode child)
{
if (child.Parent != null)
child.Parent.RemoveChildFromSceneGraph(child);
Childs.Add(child);
child.Parent = this;
}
public void AddChild(Entity child)
{
if (child.Node == null)
{
SceneGraphNode node = new SceneGraphNode(child);
}
AddChild(child.Node);
}
public void RemoveChild(SceneGraphNode child, bool destroy = false)
{
child.Parent = null;
Childs.Remove(child);
if (destroy)
{
RecursiveDestruction();
}
else
{
SceneGraphManager.Root.AddChild(child);
}
}
public static void InstantDraw(SceneGraphNode node)
{
MeshRenderer renderer = node.Entity.MeshRenderer;
Camera activeCamera = CameraManager.ActiveCamera;
if (renderer != null)
{
Light dir = (Light)EntityManager.GetComponentManager<Light>()[0];
Light point = (Light)EntityManager.GetComponentManager<Light>()[1];
renderer.Material.SetLights(dir, point, null);
renderer.Material.Apply(activeCamera.Owner.Transform.Position, renderer.Mesh,
node.ToWorld, activeCamera.ViewMatrix, activeCamera.ProjectionMatrix);
}
}
static void DepthFirstWalk(SceneGraphNode node, bool draw)
{
matrixStack.PushMatrix(node.Transform.Transformation);
node.ToWorld = matrixStack.Result;
if(draw)
Renderer.Draw(node);
foreach (SceneGraphNode child in node.Childs)
{
DepthFirstWalk(child, draw);
}
matrixStack.PopMatrix();
}
public static void Init()
{
Entity rootEntity = EntityManager.CreateEntity("root");
Root = new SceneGraphNode(rootEntity);
}
public static void DeferedDraw(SceneGraphNode node)
{
}
public void RemoveChildFromSceneGraph(SceneGraphNode child)
{
child.Parent = null;
Childs.Remove(child);
}
public void MoveChild(SceneGraphNode child, SceneGraphNode newParent)
{
Childs.Remove(child);
newParent.AddChild(child);
}