Re: animate objects along paths defined by shapes.

On May 18, 2005, at 2:33 PM, Samir Patel wrote:

> I am looking for a way to animate different shapes (small rectangle,
> person image) along predefined paths (for eaxample, polyline, ellipse,
> circle) travelling at random speed.

I would normally do this by moving the agent at each timestep to a  
location
determined by a function of the simulation time.  So for a circle,  
for example,
I would get the current simulation time, and then set the location of  
the agent
using the sine and cosine of that value.  This example moves the  
agent in a
circle of radius 5:

     time = (controller get-time).
     self move to 5 * (sin(time), 0, cos(time)).

Other paths can be made similarly.

- jon klein
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