Untitled

<html>
<header>
  <style>
    @import url('https://fonts.googleapis.com/css?family=Audiowide');

body {
  margin: 0;
  text-align: center;
  font-family: 'Press Start 2P', cursive;
  user-select: none;
}
header {
  margin: 0 auto;
  width: 431px;
}
h1 {
  background: url(https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRKkScH8JekkZH7iArkjZ3B0q_GBEbpsRAjKg&usqp=CAU);
  padding: 1.2rem 0;
  margin: 0;
}
.score-container {
  display: flex;
  justify-content: space-between;
  padding: 8px 6px;
  background: #5E270;
}

  </style>
    <h1>Floppy Bird</h1>
    <div class="score-container">
      <div id="bestScore"></div>
      <div id="currentScore"></div>
    </div>
  </header>
<body>
  <canvas id="canvas" width="431" height="768"></canvas>
<script>
  const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
const img = new Image();
img.src = "https://i.ibb.co/Q9yv5Jk/flappy-bird-set.png";

// general settings
let gamePlaying = false;
const gravity = .5;
const speed = 6.2;
const size = [51, 36];
const jump = -11.5;
const cTenth = (canvas.width / 10);

let index = 0,
    bestScore = 0, 
    flight, 
    flyHeight, 
    currentScore, 
    pipe;

// pipe settings
const pipeWidth = 78;
const pipeGap = 270;
const pipeLoc = () => (Math.random() * ((canvas.height - (pipeGap + pipeWidth)) - pipeWidth)) + pipeWidth;

const setup = () => {
  currentScore = 0;
  flight = jump;

  // set initial flyHeight (middle of screen - size of the bird)
  flyHeight = (canvas.height / 2) - (size[1] / 2);

  // setup first 3 pipes
  pipes = Array(3).fill().map((a, i) => [canvas.width + (i * (pipeGap + pipeWidth)), pipeLoc()]);
}

const render = () => {
  // make the pipe and bird moving 
  index++;

  // ctx.clearRect(0, 0, canvas.width, canvas.height);

  // background first part 
  ctx.drawImage(img, 0, 0, canvas.width, canvas.height, -((index * (speed / 2)) % canvas.width) + canvas.width, 0, canvas.width, canvas.height);
  // background second part
  ctx.drawImage(img, 0, 0, canvas.width, canvas.height, -(index * (speed / 2)) % canvas.width, 0, canvas.width, canvas.height);
  
  // pipe display
  if (gamePlaying){
    pipes.map(pipe => {
      // pipe moving
      pipe[0] -= speed;

      // top pipe
      ctx.drawImage(img, 432, 588 - pipe[1], pipeWidth, pipe[1], pipe[0], 0, pipeWidth, pipe[1]);
      // bottom pipe
      ctx.drawImage(img, 432 + pipeWidth, 108, pipeWidth, canvas.height - pipe[1] + pipeGap, pipe[0], pipe[1] + pipeGap, pipeWidth, canvas.height - pipe[1] + pipeGap);

      // give 1 point & create new pipe
      if(pipe[0] <= -pipeWidth){
        currentScore++;
        // check if it's the best score
        bestScore = Math.max(bestScore, currentScore);
        
        // remove & create new pipe
        pipes = [...pipes.slice(1), [pipes[pipes.length-1][0] + pipeGap + pipeWidth, pipeLoc()]];
        console.log(pipes);
      }
    
      // if hit the pipe, end
      if ([
        pipe[0] <= cTenth + size[0], 
        pipe[0] + pipeWidth >= cTenth, 
        pipe[1] > flyHeight || pipe[1] + pipeGap < flyHeight + size[1]
      ].every(elem => elem)) {
        gamePlaying = false;
        setup();
      }
    })
  }
  // draw bird
  if (gamePlaying) {
    ctx.drawImage(img, 432, Math.floor((index % 9) / 3) * size[1], ...size, cTenth, flyHeight, ...size);
    flight += gravity;
    flyHeight = Math.min(flyHeight + flight, canvas.height - size[1]);
  } else {
    ctx.drawImage(img, 432, Math.floor((index % 9) / 3) * size[1], ...size, ((canvas.width / 2) - size[0] / 2), flyHeight, ...size);
    flyHeight = (canvas.height / 2) - (size[1] / 2);
      // text accueil
    ctx.fillText(`Best score : ${bestScore}`, 85, 245);
    ctx.fillText('Click to play', 90, 535);
    ctx.font = "bold 30px courier";
  }

  document.getElementById('bestScore').innerHTML = `Best : ${bestScore}`;
  document.getElementById('currentScore').innerHTML = `Current : ${currentScore}`;

  // tell the browser to perform anim
  window.requestAnimationFrame(render);
}

// launch setup
setup();
img.onload = render;

// start game
document.addEventListener('click', () => gamePlaying = true);
window.onclick = () => flight = jump;
</script>
</body>
</html>
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