app.js

app.js

// Enemies our player must avoid
var Enemy = function(x, y, speed) {
  this.x = x;
  this.y = y;
  this.speed = speed;
  // The sprite continuously crops and displays the image.
  this.sprite = 'images/enemy-bug.png';
};

var Enemy_Rock = function(x, y, speed) {
  this.x = x;
  this.y = y;
  this.speed = speed;
  // The sprite continuously crops and displays the image.
  this.sprite = 'images/Rock.png';
};