OpenEuphoria

Euphoria CGI, SVGA, and Pixel perfect collision dectection

• Posted by Pete Eberlein <xseal at HARBORSIDE.COM> Jun 01, 1998
• 806 views

Buddy Hyllberg writes:
>        1. is there a way to redirect STDIN & STDOUT globally?

I'm not sure what you mean by globally, but the files STDIN and STDOUT
relate to the predefined Euphoria file numbers 0 and 1, respectively.
Irv's cgi files use temporary input and output files declared by the HTTP
program ( the filenames are passed via environment variables).  I've got
some CGI programs around here somewhere... one took a euphoria program off
my hard drive, applied syntax coloring in html and returned it to the
browser.

-----------------------

Charn writes regarding svga.e:
> ...and there are other things so I don't think i missed anything obvious
> When I run it I get an error that says bytes_per_line has no value in
> Pete's svga.e I'm inclined to think that my program is at fault.  Anyway, this
> is part
> of ex.err:

bytes_per_line gets its value when you call svga_mode with the vesa mode
number to set.  Make sure to use svga_mode and not graphics_mode...

I looked again at the your code, and you are peeking data from memory
into a sequence... which my redefined pixel then pokes back into video
memory.  It would be much faster to use a mem_copy instead.

Michael Bolin has added SVGA block move routines to his ememcopy.e
package.  His routines look exactly like what you are trying to do.

---------------------

And to Michael Bolin regarding pixel perfect collision testing:
I say go for it!  If you need any assistance, I would be glad to help.  I
already have an idea for how to code it, but not much time...


Later,

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       xseal at harborside.com