//-----------------------------------------------------------------------------
//
// Sample Name: Donuts Sample
//
// Copyright (C) 1999-2001 Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
Description
===========
The Donuts sample illustrates how to use d3d to create a 2d sprite engine.
Path
====
Source: DXSDK\Samples\Multimedia\VBSamples\Direct3D\Donuts
Executable: DXSDK\Samples\Multimedia\VBSamples\Direct3D\Bin
User's Guide
============
<Alt-Enter> will bring you fullscreen to 640x480 and back to windowed mode
<Esc> exits the application
Programming Notes
=================
The background is rendered with 2 TLVertex (screen space) triangles. The sprites
are defined as an array of user defined type that is a container for sprite properties
such as position, direction, speed and size. Each of the sprites is rendered as 2
TLVertex triangles each frame.