Just a quick question: Say you simulate less than a 90 degree field of view, displaying four tiles deep, and you use a different image for each element (i.e. floor in occupied square, wall on left, wall on right, three images for the floors in the next row of tiles, and two or four walls for that row, five images for tiles in the next row, all the ceilings, etc.), that would come out to at least fourty images, no? Say you want to make it interesting and add ten or so types of walls (lets say stone, like the example image in the first post, add cave walls, cement walls, tile walls, you get the idea), that would become about four hundred different images for the walls. Do I have the right idea?
If so (and Im not sure Im right), you might want to consider something like this: First of all (and you might have already considered this part), since every tile will usually have a floor and ceiling, start rendering every screen by drawing an image that contains the floor and celinging for all the visible tiles (sample1.gif). Then you draw maybe three images for walls: those for the row of tiles extending straight forward (sample2.gif), another for the next row out (further left/right), and maybe a third. Using precalculated X coordinates from the simulated 3D projection (sample3.gif) you can cut the wall images into vertical strips for each tile (sample4.gif), drawing only certain portions with an overload from Graphics.DrawImage for the walls for different tiles. Use a similar technique for the walls that will be facing you. This would cut you down to six or seven images per texture, and produce images along the lines of sample 5. (Sorry about all the long post and five attatchments.)
If so (and Im not sure Im right), you might want to consider something like this: First of all (and you might have already considered this part), since every tile will usually have a floor and ceiling, start rendering every screen by drawing an image that contains the floor and celinging for all the visible tiles (sample1.gif). Then you draw maybe three images for walls: those for the row of tiles extending straight forward (sample2.gif), another for the next row out (further left/right), and maybe a third. Using precalculated X coordinates from the simulated 3D projection (sample3.gif) you can cut the wall images into vertical strips for each tile (sample4.gif), drawing only certain portions with an overload from Graphics.DrawImage for the walls for different tiles. Use a similar technique for the walls that will be facing you. This would cut you down to six or seven images per texture, and produce images along the lines of sample 5. (Sorry about all the long post and five attatchments.)
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