4 Levy walk for the resource movement

[vagechirkov]

Hi! I would like to initiate a separate issue to discuss how Levy Walk can be implemented for the resource movement.

We want to keep the speed constant, so the algorithm should be the following:

0. Initialize resource positions
1. Draw a random direction
2. Draw a step size from the Pareto distribution
3. Wait for the resource to finish the current step (do not update direction) and repeat the process from point 1

Is it right?

The initial implementation is here #59 (link to code).