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phetsims / acid-base-solutions

"Acid-Base Solutions" is an educational simulation in HTML5, by PhET Interactive Simulations.
http://phet.colorado.edu/sims/html/acid-base-solutions/latest/acid-base-solutions_en.html
GNU General Public License v3.0
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Should particle positions be stateful? #201

Closed pixelzoom closed 1 year ago

pixelzoom commented 1 year ago

The positions of the particles in view.magnifyingGlassNode.particlesNode is not stateful. So while the same number of particles will appear when state is restored, they will not be in the same positions. Should positions also be stateful. It seems like that would be less confusing, but it will be a big change.

pixelzoom commented 1 year ago

From 8/2/23 PhET-iO meeting:

Today we decided that particle positions are not stateful, and they can be random. We noted that in EFAC and SOM, we started with the same decision and eventually had to make them stateful, but we don’t foresee that need here.

Closing.