Enterprise Forever
:UK => Enterprise DevCompo => Enterprise DevCompo #1 => Topic started by: geco on 2016.May.07. 21:41:21
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Conversion of CPC game Chase HQ (https://enterpriseforever.com/letoltesek-downloads/cpc-jatekok-ep-konverzioi-games-converted-from-cpc/?action=dlattach;attach=15616), EXOS compatible, it needs at least EP128, recognize Turbo machine. CPC video addressing has been removed, most of drawing routines became faster, loader screen has been changed, and you can hear Speccy music under a 2nd converted screen.
Controls:
F1-F5: set delay in the game( 1-5 frame)
F8: switch off delay
redefinable keyboard (including Int Joy) , EXT1/2 joy
Esc: Exit from game
Loading
[attach=1]
Loaded
[attach=2]
Ingame
[attach=3]
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Just thinking but how is the background drawn? I mean how they throw the dither for the sense of movement etc.? I don't think they could get away with redrawing the entire buffer each game frame (well at least that would be the case for a decent framerate I guess)... Although the screen is significantly smaller (speccy size I guess)... How much fps is the cpc vs spectrum version (10fps on the cpc?)? And maybe someone also has a clue how they store the track for such games?
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everything is drawn in each frame, the track is drawn by push commands. Unfortunately I do not know how is the track stored, I did not check it. I think the speccy version is 1,5x faster than the CPC.
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Found an interesting read on how one can make a classic racer game: http://www.extentofthejam.com/pseudo/
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https://youtu.be/WXCk-lGaKbM