Animation Engine: speed tips

Niggemann, Bernd Bernd.Niggemann at
Wed Jul 1 11:25:38 EDT 2020

While not exactly what David asked for but on the topic  of animating multiple objects with acceptable speed:

The original poster asked for "sand" particles that should have some sort of collision detection and should react to a mouseDown to either attract the objects or pushes them away.

It uses _one_ polygon graphic and sets individual points of that graphic (separated by an empty line). The points are just x,y coordinates and markers make the visual objects of the moving parts.

It manages to animate quite some number of objects depending on the size of the markers and some other features that are optional (dropshadow, ounteglow, markers filled and antialiasing)

The stack is completely useless but perfect for a rainy day at home. 
Depending on the complexity of the marker graphic it manages to animate smoothly (frame rate 18 and up)  from 150 to 1500 (small) objects (you can change appearance while the objects are moving.

Kind regards

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