[Can't play tweens inside function]

Thank you so much!!

I was also testing out with the timeline first..

 

But obvious i created the tweens twice..

[Can't play tweens inside function]

Hi,

 

I'm new to GSAP. I want to animate to elements thats starts from different positions and moves towards eachother. I also want to implement a play and pause functionality.

 

The problem I can't get the animation to work inside the event button clicked function. Should it just not be possible to refer to the createted tween? I want the elements to fire of on the same time.

 

var btn_play = document.getElementById("btn_start");
var btn_pause = document.getElementById("btn_pause");
var btn_restart = document.getElementById("btn_restart");
tween = TweenMax.to("#ship1", 3, {y: 150, ease: Power0.easeNone}); //trying to call for on of the two elements.

//GSAP Animations
TweenMax.set("#ship1", {x: 120, y:10});
TweenMax.set("#ship2", {x: 120, y:400});

btn_play.addEventListener("click", function() {

tween.play(); //not working
TweenMax.to("#ship1", 3, {y: 150, ease: Power0.easeNone}); //working
TweenMax.to("#ship2", 3, {y: 170, ease: Power0.easeNone}); //working

});

btn_pause.addEventListener("click", function() {
//To pause tweens
});

btn_restart.addEventListener("click", function() {
 TweenMax.set("#ship1", {x: 120, y:10});
 TweenMax.set("#ship2", {x: 120, y:400});
});