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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              // define document width and height
var width = 450, height = 300

// create SVG document and set its size
var draw = SVG('pong').size(width, height)
draw.viewbox(0,0,450,300)


// draw background
var background = draw.rect(width, height).fill('#dde3e1')

// draw line
var line = draw.line(width/2, 0, width/2, height)
line.stroke({ width: 5, color: '#fff', dasharray: '5,5' })


// define paddle width and height
var paddleWidth = 15, paddleHeight = 80

// create and position left paddle
var paddleLeft = draw.rect(paddleWidth, paddleHeight)
paddleLeft.x(0).cy(height/2).fill('#00ff99')

// create and position right paddle
var paddleRight = paddleLeft.clone()
paddleRight.x(width-paddleWidth).fill('#ff0066')


// define ball size
var ballSize = 10

// create ball
var ball = draw.circle(ballSize)
ball.center(width/2, height/2).fill('#7f7f7f')


// define inital player score
var playerLeft = playerRight = 0

// create text for the score, set font properties
var scoreLeft = draw.text(playerLeft+'').font({
  size: 32,
  family: 'Menlo, sans-serif',
  anchor: 'end',
  fill: '#fff'
}).move(width/2-10, 10)

// cloning rocks!
var scoreRight = scoreLeft.clone()
  .text(playerRight+'')
  .font('anchor', 'start')
  .x(width/2+10)


// random velocity for the ball at start
var vx = Math.random() * 500 - 250
  , vy = Math.random() * 500 - 250

// update is called on every animation step
function update(dt) {
  // move the ball by its velocity
  ball.dmove(vx*dt, vy*dt)

  // get position of ball
  var cx = ball.cx()
    , cy = ball.cy()

  // check if we hit top/bottom borders
  if((vy < 0 && cy <= 0) || (vy > 0 && cy >= height)) {
    vy = -vy
  }
  
    var paddleLeftY = paddleLeft.y()
    , paddleRightY = paddleRight.y()

  // check if we hit the paddle
  if ((vx < 0 && cx <= paddleWidth && cy > paddleLeftY && cy < paddleLeftY + paddleHeight) ||
     (vx > 0 && cx >= width - paddleWidth && cy > paddleRightY && cy < paddleRightY + paddleHeight)) {
    // depending on where the ball hit we adjust y velocity
    // for more realistic control we would need a bit more math here
    // just keep it simple
    vy = (cy - ((vx < 0 ? paddleLeftY : paddleRightY) + paddleHeight/2)) * 7 // magic factor

    // make the ball faster on hit
    vx = -vx * 1.05
   
   // check if we hit left/right borders
  } else if ((vx < 0 && cx <= 0) || (vx > 0 && cx >= width)) {
    vx = -vx
  }
}


var lastTime, animFrame

function callback(ms) {
  // we get passed a timestamp in milliseconds
  // we use it to determine how much time has passed since the last call

  if (lastTime) {
    update((ms-lastTime)/1000) // call update and pass delta time in seconds
  }

  lastTime = ms
  animFrame = requestAnimationFrame(callback)
}

callback()
            
          
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