AnimEvent: solve bug where onStop() kills prior event on the same layer

[stephengold]

This solves a bug seen in TestJaime where anim events in the Cinematic were occasionally suppressed. This happened when 2 events were scheduled to play consecutively on the same layer and the later event's onStart() was invoked before the earlier event's onStop(). In this situation onStop() would remove the wrong action from the layer.

[capdevon]

Hi Stephen,
perhaps it is better to use the animComposer.getAction(actionName) method, instead of the animComposer.action(actionName) method which is also used to create actions and could be confusing.

as-is

Action currentAction = composer.getCurrentAction(layerName);
Action eventAction = composer.action(actionName);
if (currentAction == eventAction) {
	composer.removeCurrentAction(layerName);
}

to-be

Action currentAction = composer.getCurrentAction(layerName);
Action eventAction = composer.getAction(actionName);
if (currentAction == eventAction) {
	composer.removeCurrentAction(layerName);
}

[stephengold]

Thanks for the suggestion.

[stephengold]

I've decided a better fix is needed, to correctly handle the situation where the 2 consecutive events both play the same Action.

[stephengold]

I confirmed that the issue is resolved in v3.4.0-beta3