Path: chuka.playstation.co.uk!news
From: Philip Gooch <philg@nospam.easynet.co.uk>
Newsgroups: scee.yaroze.programming.2d_graphics
Subject: Re: 2 Questions - Same Game
Date: Wed, 21 Oct 1998 19:26:29 +0100
Organization: philg@nospam.easynet.co.uk
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References: <70f9cd$s3k10@chuka.playstation.co.uk> <362CAF35.50EF7FDA@easynet.co.uk>
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Phil Gooch wrote:

>
>
> Then modularise the angle to 360 and make positive:
>
> object.rotAngle = (360 + (object.rotAngle % 360))
>
> Use this value to rotate your sprite:
>
> object.sprite.rotate = object.rotAngle*ONE
>

Whoops, there's a couple of errors here:

this should be:

object.rotAngle = object.rotAngle % 360;            // modularise
object.sprite.rotate = object.rotAngle*ONE;        // rotate sprite


then do

object.directionX = COS[(360 + object.rotAngle)%360];    // ensures array index is
between 0 and 360
object.directionY = SIN[(360 + object.rotAngle)%360];

Phil