JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/pixi.js/4.6.0/pixi.min.js"></script>

JavaScript

/*
example created by GERENTE for Pixi.js Forum to RENDER only objects INSCREEN
http://www.html5gamedevs.com/topic/34168-rendering-only-in-screen-objects/
USE W,A,S,D to move
*/

var screenW = 600;
var screenH = 600;
var renderer = PIXI.autoDetectRenderer(screenW, screenH, {
            backgroundColor: 0xAA7F39,
            antialias: true,
            transparent: false,
            resolution: 1
          });
document.body.appendChild(renderer.view);

//LAYER
renderer.stage = new PIXI.Container() 
renderer.stage.position.set(screenW/2,screenH/2)

var layerPlayer = new PIXI.Container() 
var layerEnemies = new PIXI.Container() 
renderer.stage.addChild(layerEnemies)
renderer.stage.addChild(layerPlayer)

//CREATE CIRCLE GRAPHIC
var createGraphic = function(x,y,color){
  var graphic = new PIXI.DisplayObjectContainer();
  graphic.position.set(x,y)

  //BODY
  var body = new PIXI.Graphics();
  body.name = 'body'
  body.lineStyle(2, 0x000000, 1);
  body.beginFill(color?color:0xff0000);
  body.drawCircle(0, 0, 15);
  graphic.addChild(body)
  
  //FACE
  var face = new PIXI.Graphics();
  face.name = 'face'
  face.lineStyle(2, 0x000000, 1);
  face.beginFill(0x000000);
  face.drawCircle(15, 0, 5);
  graphic.addChild(face)
  
  
  return graphic
}

var random = function(min, max) {
  return Math.floor(Math.random() * (max - min + 1) + min);
}
var clamp = function(number, min, max) {
	return Math.min(Math.max(min, number), max)
}

//ADDING PLAYER
var player =createGraphic(0,0,0x0000FF)
player.xPos = player.yPos = 0
layerPlayer.addChild(player)

//ADDING ENEMIES
for(var i=0;i<3001;i++){
	var pos = {x:random(0,10000) ,y:random(0,10000) }
	var enemy = createGraphic(pos.x , pos.y)
  enemy.xPos = pos.x
  enemy.yPos = pos.y
	layerEnemies.addChild(enemy)
}


//INPUT LISTENERS
 document.addEventListener("keydown", function(event) {
   setKeyPressed(event.keyCode, true); 
 })
document.addEventListener("keyup", function(event) {
  setKeyPressed(event.keyCode, false); ...