// drawRenderablePrimitives -- Draws the primitives
public void drawRenderablePrimitives()
{
RenderablePrimitiveNode current = _headNode;
while (current != null)
{
_graphicsDevice.Textures[0] = current.renderablePrimitive.texture;
_primitivesEffect.Parameters["world"].SetValue(current.renderablePrimitive.worldMatrix);
_primitivesEffect.CurrentTechnique.Passes["textured_primitives"].Apply();
_graphicsDevice.DrawUserPrimitives(PrimitiveType.TriangleList, current.renderablePrimitive.vertices, 0, current.renderablePrimitive.primitiveCount, VertexPositionColorTexture.VertexDeclaration);
//_graphicsDevice.DrawUserPrimitives<CustomVertexFormat>(PrimitiveType.TriangleList, current.renderablePrimitive.vertices, 0, current.renderablePrimitive.primitiveCount);
current = current.next;
}
_headNode = null;
}
// Add a renderable primitive to the draw list
// TODO: This creates a lot of garbage... should consider refactoring.
public void addRenderablePrimitive(IRenderablePrimitive renderablePrimitive)
{
RenderablePrimitiveNode node = new RenderablePrimitiveNode(renderablePrimitive);
if (_headNode == null)
{
// This is the first node, so make it the head
_headNode = node;
}
else if (_headNode.renderablePrimitive.layerDepth < node.renderablePrimitive.layerDepth)
{
// The head node has a layer depth lower than the node being added, so move it down the list
node.next = _headNode;
_headNode = node;
}
else
{
RenderablePrimitiveNode current = _headNode;
while (current != null)
{
if (current.next == null)
{
current.next = node;
return;
}
else if (current.next.renderablePrimitive.layerDepth <= node.renderablePrimitive.layerDepth)
{
node.next = current.next;
current.next = node;
return;
}
current = current.next;
}
}
}
