Add play speed slider

[EwoutH]

A slider with which you can manipulate the number of steps per second (like NetLogo has) would be really useful.

Make sure if the simulation takes already a bit of time, the step delay isn't added to it, but just is the remainder.

Example: Simulation takes 50ms, and I want to display 10 steps per second. Then only 50ms should be added to get the 100ms desired.

In NetLogo:

[Corvince]

Let's see how we can implement this. So far I am not so happy with the simulation speed. It's super random for me, sometimes super slow and sometimes okay ish.

[EwoutH]

AgentPy has an implementation that modifies speed of visualisation, as can be seen in different examples including this one. Might be interesting for inspiration.