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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by RedMonkeyRon[/i] [br]I have a working Pokemon-like 2D game, but it runs like a slug. [:(] I based it on this tutorial: http://dotnetforums.net/showthread.php?t=87878, but the tutorial didn't go into how to actually alter the vertices of each sprite. Therefore, to simulate movement, I'm disposing and re-creating 150 sprites for each time the little man moves. Ugh. I suspect that can just change topleft.x and topleft.y of each vertex (each sprite contains 4) and then re-render the scene, therefore simulating movement. However, I don't know how to edit the vertices in an existing sprite. The sprite class clsSprite contains: Private dxDevice As Device Public SpriteImage As Texture Public vBuffer As VertexBuffer Question: How do I reference something life clsSprite.vBuffer.Vertex(x).TopLeftX and edit them? If I can get the performance to a less embarrassing point, I promise I'll put the base code out here. Thanks!!! [/quote]    Insert an File Check here to include your profile signature. Check here to subscribe to this topic.