playerImage =   loadImage("superman.png");

  bgImage = loadImage("space.png");

  villainImage = loadImage("villain.png");

}

​

function setup() {

  createCanvas(500, 500);

  bg = createSprite(200,200,400,400);

  player = createSprite(50,300 );

  villain =createSprite(460,50 ); 

  platform =createSprite(250,520,500,10);

}

​

function draw() {

   bg.addImage(bgImage);

   bg.velocityY=4;

   player.addImage(playerImage);

   villain.addImage(villainImage);

    if(keyDown("up") ) {

       player.velocityY = -10;

      }

    if(keyDown("left") ) {

      player.x = player.x-4;

      }

    if(keyDown("right") ) {

       player.x = player.x+4;

      }

    player.velocityY = player.velocityY + 1;

    if (bg.y >500 ){

       bg.y = 250;

      }

   player.collide(platform);

   drawSprites();

}

​