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| | Tile Graphics Techniques |
 | | When a tile is draw to the screen with masking, all pixels of a predetermined color are not plotted so that the tile will only cover the background where the shape of the graphic dictates. |
 | | Instead of drawing millions of tiles for each piece of scenery like a plain wall, another wall with a torch on it, etc, you simply draw the plain wall, draw the torch, then stack the picture tile on the wall tile. |
 | | But if you are constantly writing over the all_items list, and the computer crashes, that game state is ruined because part of all_items was in memory, and not all of it was on disk since item in local_items are literally removed from all_items. |
| www-cs-students.stanford.edu /~amitp/Articles/Tiletech.html (3689 words) |
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