Vorticon

Great graphics and sound. I am impressed by how you managed to leverage the limitations of XB to create the illusion of depth and parallax. Excellent work! Walid

Very nice. I will add them to my XB toolkit. Thanks for the clarification Walid I think it might be something like this ... After CALL INIT Disable FCTN QUIT, sound processing and auto sprite motion CALL LOAD(-31806,128) Disable auto sprite motion CALL LOAD(-31806,64) Disable auto sound processing CALL LOAD(-31806,32) Disable FCTN QUIT CALL LOAD(-31806,16) Restore all of the above CALL LOAD(-31806,0) ref.: Amarillo newsletter Computer! feedback

Hi. Can anyone here explain to me the function of the CALL LOAD calls in Marc's awesome Lunar Rescue game? I can't seem to make sense of them... Walid

Great! I have uploaded the adjusted the version. Walid

I tested your suggested modifications, and the wall detection parameters you suggested are good. Using coinc ALL works very well, however at the higher levels when the obstacles speed up, collisions get missed much more frequently. I found that checking individual coincidences but reducing the tolerance from 25 to 20 gives essentially equivalent results as coinc ALL except that collision detection does not degrade as much at higher levels. Is it allowed to resubmit the program with the above mentioned modifications considering that the game itself is unchanged otherwise? Walid

Thanks I had initially tried coinc ALL but found that one was literally halfway through an obstacle before detection occurred. Since I am checking collision for only 2 sprites, I figured I could refine the collision detection by checking each individually without a significant hit on performance. As for the walls, it has been a little difficult to fine tune, but I will try your numbers and see if there is an improvement. As you said, we are only talking a few pixels here, but they do make a difference when cutting it close to the walls. Walid

Gravity Run - Walid Maalouli Gravrun.zip

After scrapping my first game attempt because I was never too happy with the sprite coincidences, I shamelessly stole the concept of the cell phone game Throttle Copter and created Gravity Run. I will be uploading it to this forum shortly and will represent my official entry. That was definitely a fun exercise Walid

OK! My contest entry is now complete. I stand at 13 code lines and 2 Data lines. I think I can probably bum a line or two still, although I will likely use a few additional lines to create an introductory screen and maybe even some music. It was a really hard battle between feature creep and playability, and the program went through several iterations to achieve a decent balance. Definitely a fun exercise and a welcome diversion from assembly, although I did miss the level of control over the machine I have with the latter. Walid