sketch.js

var car, wall;
var speed, weight;

function setup() {
  createCanvas(1600,400);
  
  car = createSprite(50, 200, 50, 50);
  
  wall = createSprite(1500, 200, 60, height/2);
  wall.shapeColor = (80, 80, 80)

  speed = random(55, 90);
  weight = random(400, 1500);

}

function draw() {
  background(255,255,255); 
  car.velocityX = speed;
  if(wall.x - car.x < (car.width/2 + car.width/2)){
    car.velocityX = 0;
    var deformation = 0.5 * weight * height * speed * speed/22509;
    if(deformation > 180){
      car.shapeColor = color(225, 0, 0);
    }
    if(deformation < 180 && deformation > 100){
      car.shapeColor = color(230, 230, 0);
    }
    if(deformation < 100){
      car.shapeColor = color(0, 225, 0);
    }


  }
  drawSprites();
}