This is a $obj from @worldobjects : 

use lib "../../HollyGame";

package Ultima8::WorldObject;

sub WorldObject {
        my ($class, $x, $y, $z, $w, $h, $d) = @_;

        $self = { x => $x, y => $y, z => $z, w => $w, h => $h, d => $d
+ };

        return bless $self, ref($class) || $class;
}

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This is a instantiation of the hash octtree, which has an object in it which is collisioned against at 4000 / (2 * 20): 
$self->{octtree} = Ultima8::OctTree->OctTree(4000,4000,200,(WorldObjec
+t->WorldObject(100,100,100,100,100,100)));

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The line : 
$self->{rootnodes}{$level} .= $obj;

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concatenates an world object to the member rootnodes with a key which is a level in subdivision of the space (in 2) You check for 8 collisions which are the intersection of 2 squares, one above the other in an cube subdivision. The methods draw and update I haven't done yet.

In reply to Re^2: octtree using hashes by holyghost
in thread octtree using hashes by holyghost

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