An intense bomb fight by the grates. Pieces of shrapnel from recently exploded bombs are bouncing around the industrial city level., by gillius

This image is from a game I completed about 3 weeks ago. I did this project with 2 other programmers for a 10 week school project in my 2D Game Programming course I took at my college RIT.

The game is not written with Allegro -- it uses DirectX8.1. Direct3D was used as the rendering API and not DirectDraw. No 3D coordinates were used in sending the graphics to the video card -- I used pre-transformed 2D triangles, and the video card draws them. This is how I achieve the 300+ frame per second count on fast machines, however, the particles slow down the game quite a bit. I originally thought the slow down was entirely CPU-based (and this is why crappy video cards ran the game at the same speed as fast ones), but from what I learned later I now believe this may be due to the fact that I was not using hardware vertex buffers, and it is the speed of the AGP bus that is limiting the frame rate as the triangles I am drawing are so primitive even old video cards can draw them faster than I can feed in the verts to the card.

For the tile drawing I used the method found in this Gamedev.net article: http://www.gamedev.net/reference/articles/article935.asp.

You can find more (non-technical) information on my website http://www.rit.edu/~jpw9607/isobomb/, and you may also download the source code. The game is downloadable with a graphical install wizard (using Inno Setup) so if you just want to play the game it is a very simple install/uninstall.

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