special animation with tween and tap need help

[bexphones]

hi,

i'm trying to implement this effect :

1. i have a circle who's animating to incite the player to click on the screen.
2. next the player click and release a pink player who go to an enemy ( the pink rectangle).
3. I would like to let the player the ability to click several times to release multiple players and each time the player is inactive the animation of the circle to prompt him to click.

The problem is that this animation launches several times at the same time as soon as the players are dead. How to code this to avoid this behavior?

thanks for your help, because me  i don't see the solution

https://jsfiddle.net/espace3d/zdnk9cem/

 

var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload:preload, create: create, update : update });

function preload() {
	game.load.image('circle', 'https://s3.postimg.org/bb4aql1lf/touch.png');
	game.load.image('rect','https://s26.postimg.org/ci44mlog9/dalle.png')
	game.load.image('player','https://s26.postimg.org/ikbrd3cw9/bullet_color.png')
}

var player=[]
var enemy
var circle
var tw_name
var tap_ready = true
var flag=true
var delay_circle_timer = 1500
var counter = -1

//effect on the circle : tween 
start_tw = (obj,tw_action,tw_name,f) => {
	tap_ready = true
	f=true
	tw_action(obj,tw_name)
}

// declaration of tw_action
tw_action= (obj,tw_name) =>{
	obj.alpha=.5
	obj.scale.setTo(1,1)
	tw_name= game.add.tween(obj.scale).to({x:1.5,y:1.5},700,Phaser.Easing.Linear.None,true,delay_circle_timer,-1)
	tw_name = game.add.tween(obj).to({alpha:0},700,Phaser.Easing.Linear.None,true,delay_circle_timer,-1)
	tw_name.onStart.add(()=> {obj.visible=true})
}

//stop tween
stop_tw = (tw_name,f,obj) => {
	if(f){
		obj.visible=false		
		game.tweens.remove(tw_name)
		f=false
	}
}

//launch player and start counter
launch_player = (obj)=> {
	counter++
	obj[counter].body.velocity.y=-100
}

hide_player_and_start_tw = (obj) => {
	obj.body.enable=false
	obj.visible=false
	start_tw(circle,tw_action,tw_name,flag)
}

tap = () => {
	game.input.onTap.add(onTap);

	function onTap(pointer, doubleTap) {
		if (!doubleTap && tap_ready){
			tap_ready=false
			//stop the tween on the circle
			stop_tw(tw_name,flag,circle)
			//launch the player
			launch_player(player)
			//delay for reset tap_ready
			game.time.events.add(500,() => {tap_ready = true})

		}
	}
}

function create() {
	game.physics.startSystem(Phaser.Physics.ARCADE);

	circle=game.add.sprite(400,300,'circle')
	circle.anchor.setTo(.5)
	circle.inputEnabled = true

	enemy = game.add.sprite(400,100,'rect')
        enemy.anchor.setTo(.5)
	game.physics.arcade.enable(enemy)
	enemy.body.enable=true
	enemy.body.immovable=true
	for (var i = 0; i < 10; i++){
		player[i]=game.add.sprite(400,600,'player')
		player[i].anchor.setTo(.5)
		game.physics.arcade.enable(player[i])
		player[i].body.enable=true
	}
	//initiate first tween
	start_tw(circle,tw_action,tw_name,flag)
}

function update() {
	tap(circle)

	for (var i = 0; i < 10; i++){
		game.physics.arcade.collide(player[i],enemy,hide_player_and_start_tw)
	}
}