Method start

src/LGraph.ts:384–421

* @deprecated Will be removed in 0.9 * Starts running this graph every interval milliseconds. * @param interval amount of milliseconds between executions, if 0 then it renders to the monitor refresh rate

(interval?: number)

   * @param interval amount of milliseconds between executions, if 0 then it renders to the monitor refresh rate
   */
  start(interval?: number): void {
    if (this.status == LGraph.STATUS_RUNNING) return
    this.status = LGraph.STATUS_RUNNING

    this.onPlayEvent?.()
    this.sendEventToAllNodes("onStart")

    // launch
    this.starttime = LiteGraph.getTime()
    this.last_update_time = this.starttime
    interval ||= 0

    // execute once per frame
    if (
      interval == 0 &&
      typeof window != "undefined" &&
      window.requestAnimationFrame
    ) {
      const on_frame = () => {
        if (this.execution_timer_id != -1) return

        window.requestAnimationFrame(on_frame)
        this.onBeforeStep?.()
        this.runStep(1, !this.catch_errors)
        this.onAfterStep?.()
      }
      this.execution_timer_id = -1
      on_frame()
    } else {
      // execute every 'interval' ms
      this.execution_timer_id = setInterval(() => {
        // execute
        this.onBeforeStep?.()
        this.runStep(1, !this.catch_errors)
        this.onAfterStep?.()
      }, interval)
    }
  }

  /**
   * @deprecated Will be removed in 0.9