text: // pos is the PacMan image position variable- it is set to 0 initially
  var pos = 0;
  //pageWidth is the width of the webpage. This is later used to calculate when Pac-Man needs to turn around. 
  let pageWidth = window.innerWidth;
  //This array contains all the PacMan movement images
  const pacArray = [
    ['./images/PacMan1.png', './images/PacMan2.png'],
    ['./images/PacMan3.png', './images/PacMan4.png'],
  ];
  
  // this variable defines what direction should PacMan go into:
  // 0 = left to right
  // 1 = right to left (reverse)
  var direction = 0;
  
  // This variable helps determine which PacMan image should be displayed. It flips between values 0 and 1
  var focus = 0;
  
  // This function is called on mouse click. Every time it is called, it updates the PacMan image, position and direction on the screen.
  function Run() {
    let img = document.getElementById('PacMan');
    let imgWidth = img.width;
    focus = (focus + 1) % 2;
    direction = checkPageBounds(direction, imgWidth, pos, pageWidth);
    img.src = pacArray[direction][focus];
        if (direction) {
          pos -= 20;
          img.style.left = pos + 'px';
        } else {
          pos += 20;
          img.style.left = pos + 'px';
        }
  }
  // TODO: Add a setInterval call to run every 200 milliseconds. Note: in the video, Dr. Williams uses setTimeout, but here we are going to use a slightly different
  //function call of setInterval, so that you can have practice using this function call. This will also have us add a couple of extra arguments, pos (position), which was declared 
  //on line 2, and pageWidth, which is declared on line 4. 
  
  //Had to enter this for nextTech - the instructions say to add the other arguement - i will add them below commented
  setInterval(Run, 200);
  //setInterval(Run, 200, pos, pageWidth);
  
  // This function determines the direction of PacMan based on screen edge detection. 
  
  function checkPageBounds(direction, imgWidth, pos, pageWidth) {
    let leftSide = 0;
    let rightSide = pageWidth - imgWidth;
  
  
  if (direction === 0 && pos >= rightSide){
      direction = 1;
  } else if (direction === 1 && pos < leftSide){
      direction = 0;
  }
  
    return direction;
  }
  
  
  //Please do not change
  module.exports = checkPageBounds;