RevEng Posted November 13, 2016 Share Posted November 13, 2016 I was able to recreate the famous starfield effect from Cosmic Ark in bB. If you're not acquainted with it, the effect exploits a TIA bug to repeatedly re-trigger one of the display objects, without any additional cycle time required in-kernel. This is particularly cool for bB, since certain kernel options take away missile0, and this hack gives you another way to use missile0. In the demo I've enabled no_blank_lines, to demonstrate. The demo cycles through different adjustments to "missile0x", which affects the starfield speed and direction. The starfield is a bit regular, but it's better than nothing. Feel free to take the routines and copy or adapt to your games. Enjoy! bbstarfield.bas.bin bbstarfield.bas 13 Quote Link to comment Share on other sites More sharing options...
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