/*
 * AnimationController.js
 *
 * @author realor
 */
import { Controller } from './Controller.js'

class AnimationController extends Controller {
    constructor(object, name) {
        super(object, name)

        this.input = 0

        this._animating = false
        this._animate = this.animate.bind(this)
        this._onNodeChanged = this.onNodeChanged.bind(this)
    }

    onStart() {
        const application = this.application
        application.addEventListener('scene', this._onNodeChanged)
        this.startAnimation()
    }

    onStop() {
        const application = this.application
        application.removeEventListener('scene', this._onNodeChanged)
        this.stopAnimation()
    }

    startAnimation() {
        if (!this._animating) {
            this._animating = true
            this.application.addEventListener('animation', this._animate)
        }
    }

    stopAnimation() {
        if (this._animating) {
            this._animating = false
            this.application.removeEventListener('animation', this._animate)
        }
    }

    animate(event) {}

    onNodeChanged(event) {
        if (event.type === 'nodeChanged' && this.hasChanged(event)) {
            this.startAnimation()
        }
    }
}

export { AnimationController }