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Space Trek: TI-99/4a version

TI-99/4a Games Port

101 replies to this topic

#101 adamantyr OFFLINE  



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  • 1,356 posts

Posted Thu Aug 4, 2016 10:25 AM

A new version, with one significant feature change... torpedoes now use CALL MOTION to move!


After a discussion on a thread, I realized I COULD make it work if I used a second invisible sprite as a "target" for the torpedo to hit. Using CALL COINC with ALL will only check a single bit for sprite overlap which is about as fast as you can get, and if you just loop continuously, it should always contact. I got them moving at a pretty good speed too!


The one tricky bit was pre-calculating the end square, this creates a slight delay before a torpedo is fired, but it's not as bad as I feared it would be.


Attached File  SpaceTrekv33.zip   14.2KB   13 downloads



#102 Opry99er OFFLINE  



  • 9,797 posts
  • Location:Hustisford, WI

Posted Fri Aug 5, 2016 2:00 AM

Hell yes!!! One of my favorites just got an upgrade!!!

This is like putting a new gloss on a tricked out 65 Cadi.


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