/// <summary>
/// if sub-class really wants to, can override this and determines how to draw
/// </summary>
/// <param name="graphicsDevice"></param>
virtual public void Draw(GraphicsDevice graphicsDevice, ContentManager cm, Camera camera, MatrixStack stack)
{
BasicEffect effect = LoadEffect(graphicsDevice);
stack.Push();
{
Xform.ComputeWorldTransform(stack);
effect.View = camera.ViewMatrix();
effect.Projection = camera.ProjectionMatrix();
effect.World = stack.GetTopOfStack();
effect.CurrentTechnique.Passes[0].Apply();
SetCurrentColor();
DrawPrimitive(graphicsDevice, cm);
}
stack.Pop();
if (mDrawPivot)
{
if (null == mPivot)
{
mPivot = new AxisShape();
}
mPivot.DrawPivot = false; // to ensure no infinite recursion!
mPivot.Xform.Translation = Xform.Translation + Xform.Pivot;
mPivot.Xform.Rotation = Xform.Rotation;
mPivot.Draw(graphicsDevice, cm, camera, stack);
}
}
public SceneNode(String name = "scene node")
{
mName = name;
mXform = new XformInfo();
mShapes = new List <Shape>();
mChildren = new List <SceneNode>();
mShowPivot = false;
mPivotShape = new AxisShape();
mPivotShape.Xform.Scale = new Vector3(5f);
}
public Shape()
{
mCenter = Vector3.Zero;
mColor = Color.Red;
mXform = new XformInfo();
mPivot = null; // only allocate if wants to draw, instantiate now creates a infinite construction
mDrawPivot = false;
AllocateVertices();
ComputeVertexPosition();
mEffectOnDevice = new Dictionary <GraphicsDevice, BasicEffect>();
}