Re: SWARM Boids

[Jan Kreft]

Hi,

if you need only a few orientations, say 8, and a few sizes, say 3, then
using premade pixmaps might do?

HTH, Jan.

On Tue, 1 Jun 1999, Eric Werk wrote:

> Hi all!
> 
> I am trying to make a SWARM version of Craig Reynolds a-life "Boids".
> (see http://hmt.com/cwr/boids.html for his implementation in Java) 
> 
> My code so far can be found at http://www.daimi.au.dk/~werk/swarm/boid/
> 
> For now, the display is 2D, and the Boids (and other objects) are drawn
> on a Canvas with an OvalNodeItem (see [aSimObject display])
> 
> I would like to make triangular representation of the boids, based on 
> their size and current heading, but cannot figure out how to draw 
> (and subsequently erase) a composite graphical object.
> 
> Do I have to delve into tk/tcl programming to do this, or is there
> somehow
> I can collect a number of Lines (from the gui lib) and make that into a
> composite item that responds to [aComposite draw] and [aComposite
> erase]?
> 
> /Eric Werk


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