text: var pos = 0;
      const pacArray = [
          ['PacMan1.png', 'PacMan2.png'],
          ['PacMan3.png', 'PacMan4.png']
      ];
      var direction = 0;
      const pacMen = []; // This array holds all the pacmen
  
      function setToRandom(scale) {
          return {
              x: Math.random() * scale,
              y: Math.random() * scale
          }
      }
      // Factory to make a PacMan at a random position with random velocity
      function makePac() {
          // returns an object with random values scaled {x: 33, y: 21}
          let velocity = setToRandom(10); // {x:?, y:?}
          let position = setToRandom(200);
          // Add image to div id = game
          let game = document.getElementById('game');
          let newimg = document.createElement('img');
          newimg.style.position = 'absolute';
          newimg.src = 'PacMan1.png';
          newimg.width = 100;
          // set position here 
          
          newimg.style.left = position.x;
          newimg.style.top = position.y;
   
          // add new Child image to game
          game.appendChild(newimg);
          // return details in an object
          return {
              position,
              velocity,
              newimg
          }
      }
  
      function update() {
          //loop over pacmen array and move each one and move image in DOM
          pacMen.forEach((item) => {  
              checkCollisions(item)
              item.position.x += item.velocity.x;
              item.position.y += item.velocity.y;
  
              item.newimg.style.left = item.position.x;
              item.newimg.style.top = item.position.y;
  
              item.newimg.src="PacMan2.png";
               
          })
          setTimeout(update, 20);
      }
  
      /* ========== CHANGING IMAGE ============= */
  
      function changeimg() {
        var img = document.getElementById("img");
        img.src = images[x];
        x++;        
        if(x >= images.length) {
            x = 0;
        } 
        setTimeout("changeimg()",  60);
    }
  
  
      function checkCollisions(item) {
          if (
          item.position.x + item.velocity.x + item.newimg.width > window.innerWidth ||
          item.position.x + item.velocity.x < 0
           )
          item.velocity.x = -item.velocity.x;
          if (
          item.position.y + item.velocity.y + item.newimg.height >
          window.innerHeight ||
          item.position.y + item.velocity.y < 0
          )
          item.velocity.y = -item.velocity.y;
      }
          
  
      function makeOne() {
          pacMen.push(makePac()); // add a new PacMan
      }
  
  