/*
 * TranslationController.js
 *
 * @author realor
 */

import { AnimationController } from './AnimationController.js'
import { Controller } from './Controller.js'

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

        let minPosition = object.position.x
        let maxPosition = object.position.x + 1

        this.axis = 'x'
        this.minPosition = minPosition
        this.maxPosition = maxPosition
        this.minValue = 0
        this.maxValue = 1
        this.maxSpeed = 1
    }

    animate(event) {
        let value = this.input
        if (value === null) return

        value = parseFloat(value)
        if (typeof value !== 'number') return

        let axis = this.axis || 'x'
        let minValue = parseFloat(this.minValue)
        let maxValue = parseFloat(this.maxValue)
        let minPosition = parseFloat(this.minPosition)
        let maxPosition = parseFloat(this.maxPosition)
        let maxSpeed = parseFloat(this.maxSpeed)

        let factor = (value - minValue) / (maxValue - minValue) // [0..1]
        let targetPosition = minPosition + factor * (maxPosition - minPosition)
        let position = this.object.position[axis]
        let delta = targetPosition - position
        if (Math.abs(delta) < 0.001) {
            this.stopAnimation()
        } else {
            let speed = delta / 0.2
            if (speed > maxSpeed) speed = maxSpeed
            else if (speed < -maxSpeed) speed = -maxSpeed
            this.object.position[axis] += speed * event.delta
            this.object.updateMatrix()
            this.application.notifyObjectsChanged(this.object, this)
        }
    }
}

Controller.addClass(TranslationController)

export { TranslationController }