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jeu.html
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jeu.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Casse Brique</title>
<style>
html, body{
width: 100%;
height: 100%;
margin: 0;
padding: 0;
background-color: black;
}
#container{
position: relative;
width: 800px;
height: 800px;
box-sizing: border-box;
background-color: black;
margin: 0 auto; /* centrage horizontal */
}
#paddle {
position: absolute;
bottom: 50px;
left: 200px;
width: 100px;
height: 20px;
background-color: yellow;
}
#ball {
position: absolute;
left: 300px;
bottom: 200px;
width: 50px;
height: 50px;
border-radius: 50%;
background-color: pink;
background-image: url('./img/peumad.svg');
background-size: 50px;
}
.brick {
position: absolute;
background-color: orange;
}
</style>
</head>
<body>
<div id="container">
<div id="ball"></div>
<div id="paddle"></div>
</div>
<script type="text/javascript">
// Elements HTML
const container = document.querySelector('#container');
const paddle = document.querySelector('#paddle');
const ball = document.querySelector('#ball');
const bricks = [];
let animationFrame;
// Paddle config
let moveLeft = false;
let moveRight = false;
const step = 20;
// Ball config
let ballRadius = 25;
let ballDx = 2;
let ballDy = -2;
// Brick config
let brickWidth = 100;
let brickHeight = 22;
let brickMargin = 10;
let numberBrickPerLine = 6;
let numberBrickPerColumn = 6;
let brickOffsetLeft = 140;
let brickOffsetTop = 100;
/**
* Keyboard event
*/
function initKeyboardListener() {
document.addEventListener('keydown', onKeyDown, false);
document.addEventListener('keyup', onKeyUp, false);
}
/**
* On key down keyboard
*/
function onKeyDown(event) {
if (event.key === 'ArrowRight') {
moveRight = true;
}
else if (event.key === 'ArrowLeft') {
moveLeft = true;
}
}
/**
* On key up keyboard
*/
function onKeyUp(event) {
if (event.key === 'ArrowRight') {
moveRight = false;
}
else if (event.key === 'ArrowLeft') {
moveLeft = false;
}
}
/**
* Move Paddle
*/
function movePaddle() {
let currentPositionLeft = paddle.offsetLeft;
if (moveRight) {
currentPositionLeft += step;
}
else if(moveLeft) {
currentPositionLeft -= step;
}
// Limit Left
if(currentPositionLeft < 0) {
currentPositionLeft = 0;
}
// Limit Right
if(currentPositionLeft + paddle.offsetWidth > container.offsetWidth) {
currentPositionLeft = container.offsetWidth - paddle.offsetWidth;
}
paddle.style.left = currentPositionLeft + 'px';
}
/**
* Ball move
*/
function moveBall() {
let currentPositionLeft = ball.offsetLeft;
let currentPositionTop = ball.offsetTop;
// Limit left
if (currentPositionLeft < 0) {
ballDx = -ballDx;
}
// Limit Right
if (currentPositionLeft + ballRadius * 2 > container.offsetWidth) {
ballDx = -ballDx;
}
// Limit Top
if (currentPositionTop < 0) {
ballDy = -ballDy;
}
// Limit Bottom
if (currentPositionTop + ballRadius * 2 > container.offsetHeight) {
// ballDy = -ballDy;
alert('GameOver');
cancelAnimationFrame(animationFrame);
location.reload();
}
currentPositionLeft += ballDx;
currentPositionTop += ballDy;
ball.style.left = currentPositionLeft + 'px';
ball.style.top = currentPositionTop + 'px';
}
/**
* Check collision between paddle and ball
*/
function checkCollisionPaddle() {
let ballX = ball.offsetLeft + ballRadius;
let ballBottomY = ball.offsetTop + ballRadius * 2;
let paddleLeft = paddle.offsetLeft;
let paddleTop = paddle.offsetTop;
let paddleRight = paddleLeft + paddle.offsetWidth;
let paddleBottom = paddleTop + paddle.offsetHeight;
// Collision
if (ballX > paddleLeft && ballX < paddleRight &&
ballBottomY > paddleTop && ballBottomY < paddleBottom
) {
ballDy = -ballDy;
if (ballX < paddleLeft + paddle.offsetWidth / 2) {
ballDx = -Math.abs(ballDx);
}
if (ballX > paddleLeft + paddle.offsetWidth / 2) {
ballDx = Math.abs(ballDx);
}
}
}
/**
* Check collision between bricks and ball
*/
function checkCollisionBricks() {
let ballX = ball.offsetLeft + ballRadius;
let ballY = ball.offsetTop + ballRadius;
for(let i = bricks.length - 1; i >= 0; i--) {
let b = bricks[i];
let brickLeft = b.offsetLeft;
let brickTop = b.offsetTop;
let brickRight = brickLeft + b.offsetWidth;
let brickBottom = brickTop + b.offsetHeight;
// Collision
if (ballX > brickLeft &&
ballX < brickRight &&
ballY + ballRadius > brickTop &&
ballY - ballRadius < brickBottom
) {
ballDy = -ballDy;
container.removeChild(b);
bricks.splice(i, 1);
}
}
}
/**
* Create all bricks
*/
function createBrick() {
let positionX = brickOffsetLeft;
let positionY = brickOffsetTop;
for (let i = 0; i < numberBrickPerColumn; i++) {
for(let j = 0; j < numberBrickPerLine; j++) {
let brick = document.createElement('div');
brick.className = 'brick';
brick.style.width = brickWidth + 'px';
brick.style.height = brickHeight + 'px';
brick.style.left = positionX + 'px';
brick.style.top = positionY + 'px';
container.appendChild(brick);
positionX += brickWidth + brickMargin;
bricks.push(brick);
}
positionX = brickOffsetLeft;
positionY += brickHeight + brickMargin;
}
}
/**
* 60 FPS rendering
*/
function loop(){
animationFrame = window.requestAnimationFrame(function() {
movePaddle();
moveBall();
checkCollisionPaddle();
checkCollisionBricks();
loop();
})
}
/**
* Init game
*/
function init() {
//Init
initKeyboardListener();
createBrick();
loop();
}
init();
</script>
</body>
</html>