classics Posted February 27, 2004 Share Posted February 27, 2004 I find this game pretty graphically amazing. There are a large number of color objects all moving around the screen with smooth 4-way scrolling. On the title screen there is even a large graphic overlay with no slowdown of the game display at all. I'm looking at it and thinking Sinistar would have been beautiful with this graphics engine. Steve Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted February 27, 2004 Share Posted February 27, 2004 it's antic e, no scrolling... large objects are preshifted gfx in ram and a unrolled loop is drawing the "stripes". there is even no double buffering. stuff is drew with the "EOR" method... so 1st old gfx is erased by "overdraw" the old one then move objects and then draw new one... i have made quite detailed analysis on the engine. it's really simple. search atariage for keywords "time pilot" "zone ranger" and with my nick Quote Link to comment Share on other sites More sharing options...
miker Posted February 27, 2004 Share Posted February 27, 2004 So maybe someone can do a game using this "simple" procedure, eh? Any coders here??? Quote Link to comment Share on other sites More sharing options...
bjk7382 Posted February 27, 2004 Share Posted February 27, 2004 What about Dimension X, I find that game has a pretty neat effect for the floor. Quote Link to comment Share on other sites More sharing options...
ZylonBane Posted February 27, 2004 Share Posted February 27, 2004 What about it? Quote Link to comment Share on other sites More sharing options...
bjk7382 Posted February 27, 2004 Share Posted February 27, 2004 What about it? I was wondering how the effect was done. Not many games have stuff moving that fast. Quote Link to comment Share on other sites More sharing options...
Schmutzpuppe Posted February 28, 2004 Share Posted February 28, 2004 Its easy to do but not that easy to explain (for me). Quote Link to comment Share on other sites More sharing options...
TMR Posted February 28, 2004 Share Posted February 28, 2004 I was wondering how the effect was done. Not many games have stuff moving that fast. The horizontal movement is precalculated, the movement in and out of the screen is just done by splitting the colours. Ballblazer does something similar, so do Trailblazer (original version on the C16) and Cosmic Causeway (C64). The reason that not many games use this system is that it can only display a chessboard - it'd be boring if lots of games used it! =-) Quote Link to comment Share on other sites More sharing options...
Schmutzpuppe Posted February 28, 2004 Share Posted February 28, 2004 Maybe the picture makes it clear. You just have to "roll" the colors over the playfield using dli to get this "moving forward" effect. Quote Link to comment Share on other sites More sharing options...
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