Strange event listener behaviour on AnimationMixer, bug?

[lolovo1]

Hi,

I’ve faced with strange behaviour on AnimationMixer event listener - I can’t identify/remove event listener after mixer.addEventListener(‘finished’,function(e){…}); … call of mixer.hasEventListener(‘finished’) after adding returns false (same as inside of function(e){…}), but if print mixer via console.log there is _listeners and uuid the same when adding and trying to identify/remove. What is this an issue? It seems there is a bug here… revision 117.

You can take , for instance, webgl_skinning_simple.html example and add the following lines:

mixer = new THREE.AnimationMixer( gltf.scene );
mixer.addEventListener('loop',function(e) { console.log('fin'); console.log(this.hasEventListener('loop')); this.removeEventListener('loop'); });
console.log('has:');
console.log(mixer.hasEventListener('loop'));
mixer.clipAction( gltf.animations[ 0 ] ).play();

console output for hasEventListener will be always false and loop will never removed.

[Mugen87]

@lolovo1

this.removeEventListener('loop');

This is no valid usage of the method. Both hasEventListener() and removeEventListener() have two mandatory parameters. That’s because you can add an arbitrary amount of event listeners to a single event.

[lolovo1]

Thank you :))…