Re: LOS

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-----Original Message-----
From: Einar Mogen <nord.staernes at ROLLAG.MAIL.TELIA.COM>
To: EUPHORIA at cwisserver1.mcs.muohio.edu
<EUPHORIA at cwisserver1.mcs.muohio.edu>
Date: Monday, August 24, 1998 7:05 PM
Subject: LOS


>I need a FAST routine that can check "line of sight" between two points.
>This is for use in Hayes. I want to track a straight line from a to b, and
>if somewhere on the way this line hits the wall, the routine returns 0.
Else
>it returns 1.
>
>The sequence LEVEL is a 2D sequence, and to see if a given point lies on a
>wall, you can do this:
>
>if LEVEL[ypos/20+1][xpos/20+1] then
>    -- just hit the wall
>end if
>
>Can someone help me with this?
>
>Einar
>
you should find your self a good ray tracer!

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