newbie : transform a function in an OOP object

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hi,

Could you help me please to transform this snippet in a prototype function to have an oop object ?

with pixi.js i could do it but with phaser i'm a little lost...

thanks for your tips.

 

function draw(e,game,nameA,posx,posy,wi,he,valueAlpha,anchorValue) {  

	var e=game.add.sprite(0,0,nameA);
	e.x=posx;
	e.y=posy;
	e.width=wi;
	e.height=he;
	e.anchor.set(anchorValue)
	e.alpha=valueAlpha

return e
}

//final drawing
function drawE(e,game) {
	var e=[]
		e.player=draw(e,game,"rect",0,0,w,h,1,0)
		e.opponent=draw(e,game,"rect",w2,0,w,h,1,0)
	return e
}

var background= drawE(this.background, game)