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6 months ago
import {
AnimationClip,
AnimationMixer,
Mesh
} from 'three';
class MorphAnimMesh extends Mesh {
constructor( geometry, material ) {
super( geometry, material );
this.type = 'MorphAnimMesh';
this.mixer = new AnimationMixer( this );
this.activeAction = null;
}
setDirectionForward() {
this.mixer.timeScale = 1.0;
}
setDirectionBackward() {
this.mixer.timeScale = - 1.0;
}
playAnimation( label, fps ) {
if ( this.activeAction ) {
this.activeAction.stop();
this.activeAction = null;
}
const clip = AnimationClip.findByName( this, label );
if ( clip ) {
const action = this.mixer.clipAction( clip );
action.timeScale = ( clip.tracks.length * fps ) / clip.duration;
this.activeAction = action.play();
} else {
throw new Error( 'THREE.MorphAnimMesh: animations[' + label + '] undefined in .playAnimation()' );
}
}
updateAnimation( delta ) {
this.mixer.update( delta );
}
copy( source, recursive ) {
super.copy( source, recursive );
this.mixer = new AnimationMixer( this );
return this;
}
}
export { MorphAnimMesh };