let rockImg;

let dinoX;

let dinoY;

let dinoYV;

let dinoSize = 100;

let rockX;

​

function preload() {

  dinoImg = loadImage("dino.png");

  rockImg = loadImage("rock.png");

}

​

function setup() {

  createCanvas(400, 400);

  dinoX = 20;

  dinoY = height/2;

  rockX = width;

  dinoYV = 0;

}

​

function draw() {

  background(220);

  render();

  move();

}

​

function render() {

  imageMode(CENTER);

  image(dinoImg, dinoX, dinoY, dinoSize, dinoSize);

  image(rockImg, rockX, height/2 + 40, dinoSize/1.5, dinoSize/2);

}

​

function move() {

  rockX -= 2;

  dinoY += dinoYV;

  dinoYV += 1;

  if(dinoY > height/2) {

    dinoY = height/2;

  }

  if(keyIsPressed && dinoYV < 1) {

    dinoYV -= 5;

  }

}