import EventEmitter from './EventEmitter.js'
export default class Time extends EventEmitter
{
/**
* Constructor
*/
constructor()
{
super()
this.start = Date.now()
this.current = this.start
this.elapsed = 0
this.delta = 16
this.tick = this.tick.bind(this)
this.tick()
}
/**
* Tick
*/
tick()
{
this.ticker = window.requestAnimationFrame(this.tick)
const current = Date.now()
this.delta = current - this.current
this.elapsed = current - this.start
this.current = current
if(this.delta > 60)
{
this.delta = 60
}
this.trigger('tick')
}
/**
* Stop
*/
stop()
{
window.cancelAnimationFrame(this.ticker)
}
}