If you don’t want the ‘queue up’ effect, you can use the second parameter of setTrigger to only have it apply for the current frame.
AnimComponent | PlayCanvas API Reference>
this.entity.anim.setTrigger('idle', true);
This way, if the trigger is not consumed in this frame, it gets reset at the end of it.
Also as a side note, I personally prefer to use ‘sub graphs’ over ANY FRAME. With layer.transition , you can transition to any state even if there is no set transition path between the states.
This makes it handy to jump to other parts of the graph.
Example: https://playcanvas.com/project/1061484/overview/f-jump-example
And the code when jumping:
if (this.app.keyboard.wasPressed(pc.KEY_SPACE)) {
this._anim.baseLayer.transition('Jump', 0.1);
}