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Watery Scroll-text Demo - Source Code


Alex H

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Here's another little scroller demo. Binary only this time until I get it cleaned up. I wrote this on a PAL machine (PAL60) and haven't sorted out NTSC colours yet. The background should be red/blue but will be purple/green in NTSC. Runs ok in Z26 (press the "-" key to switch to PAL colours) but Stella chokes on this with my 3GHz machine!

pscroll.zip

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Here's another little scroller demo.  Binary only this time until I get it cleaned up.  I wrote this on a PAL machine (PAL60) and haven't sorted out NTSC colours yet.  The background should be red/blue but will be purple/green in NTSC.  Runs ok in Z26 (press the "-" key to switch to PAL colours) but Stella chokes on this with my 3GHz machine!

902258[/snapback]

 

Very nice - reminds me a lot of those ST/Amiga demos that I used to admire :thumbsup:

It works with Stella (v4.1.2 Linux) for me.

 

Chris

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Runs ok in Z26 (press the "-" key to switch to PAL colours) but Stella chokes on this with my 3GHz machine!

902258[/snapback]

With the current CVS version of Stella, it runs just as well (or poorly) in Linux as on z26. Both take up 100% CPU time. I'll test in Windows when I get a chance, and also in OpenGL mode in both.

 

This type of game changes almost every pixel on the screen, so it's bound to be quite slow, as the whole screen is a dirty rectangle and must be updated. I'll research this to see if the emulation or screen updates are causing the slowdown (I have a feeling it's the latter).

 

Also, the speed of the machine is not as important as the video subsystem (what type of video card, resolution, depth, etc). SDL for Windows is not as optimized as for Linux, so that should be taken into account as well.

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  • 8 years later...

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