Path: chuka.playstation.co.uk!news
From: "Chris Wallace" <chrisw666@btinternet.com>
Newsgroups: scee.yaroze.freetalk.english
Subject: Re: joystick directions
Date: Thu, 11 Jul 2002 19:41:51 +0100
Organization: PlayStation Net Yaroze (SCEE)
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Ok here is the code as i have it, you will have to work out which variables
to swap over etc.

target_dir=ai_map2[player[i].tile]*(ONE/8);

this sets the target direction, in theis case ai_map2 is always a number
from 0 to 7 so *ONE/8 is just multiplaying it to a full angle, which you
should already have from tan2.

dir_diff=(((target_dir-current_dir)+(ONE/2))&(ONE-1))-(ONE/2);

ok, now.. i didnt strictly write this bit, i think Alex Herbert did. This
will give an out put either smaller or greater than 0, which can be tested
as such:

 if(dir_diff<0)
     turn_left
     if(dir_diff>0)
    turn_right;

And im guessing if it = = 0, then ur already facing that direction.
Hope that helps!

Chris