GRAVITY
Premier test avec JS et ChatGPT
by Jon_S_Goopple
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Le Jeu du JDP</title>
<style>
body {
display: flex;
flex-direction: column;
align-items: center;
background-color: black;
color: white;
margin: 0;
padding: 0;
height: 100vh;
box-sizing: border-box;
}
#gameCanvas {
margin-top: 20px;
border: 2px solid white;
}
button {
margin-top: 10px;
}
</style>
</head>
<body>
<h1>Testing js with ChatGPT4</h1>
<canvas id="gameCanvas" width="600" height="600"></canvas>
<button id="invertGravity">Invert Gravity</button>
<button id="switchGravity">Switch Gravity Direction</button>
<script src="game.js"></script>
</body>
</html>
JavaScript
const canvas = document.getElementById('gameCanvas');
const ctx = canvas.getContext('2d');
const invertGravityBtn = document.getElementById('invertGravity');
const switchGravityBtn = document.getElementById('switchGravity');
class ImageObject {
constructor(x, y, src, weight = 1) {
this.x = x;
this.y = y;
this.vx = 0;
this.vy = 0;
this.gravity = 0.5 * weight;
this.gravityDirection = 'down';
this.bounce = 0.8;
this.loaded = false;
this.image = new Image();
this.image.src = src;
this.image.onload = () => {
this.loaded = true;
};
}
draw() {
ctx.drawImage(this.image, this.x, this.y);
}
update() {
if (this.gravityDirection === 'down') {
this.vy += this.gravity;
} else if (this.gravityDirection === 'up') {
this.vy -= this.gravity;
} else if (this.gravityDirection === 'left') {
this.vx -= this.gravity;
} else if (this.gravityDirection === 'right') {
this.vx += this.gravity;
}
this.x += this.vx;
this.y += this.vy;
// Restreindre les images à l'intérieur du cadre d'exécution
if (this.x < 0) {
this.x = 0;
this.vx = -this.vx * this.bounce;
} else if (this.x + this.image.width > canvas.width) {
this.x = canvas.width - this.image.width;
this.vx = -this.vx * this.bounce;
}
if (this.y < 0) {
this.y = 0;
this.vy = -this.vy * this.bounce;
} else if (this.y + this.image.height > canvas.height) {
this.y = canvas.height - this.image.height;
this.vy = -this.vy * this.bounce;
}
}
}
const imageA = new ImageObject(200, 200, 'https://ease.fr/prg/A.png', 0.5);
const imageB = new ImageObject(500, 300, 'https://ease.fr/prg/B.png', 1);
let gameOver = false;
function drawTitle() {
ctx.font = '32px sans-serif';
ctx.fillStyle = 'white';
ctx.textAlign = 'center';
ctx.fillText('LE JEU DU JDP', canvas.width / 2, 40);
}
function animate() {
if (!gameOver) {
ctx.clearRect(0, 0,...