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No:15520

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Billiards
Developer User6725｜Date and time 23/9/9 19:25:36
Build time 31.271 sec｜Game capacity 3.613KB｜

Script

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Click here for free DL of the app version that can save data.

<!DOCTYPE html>
<html>
<head>
    <title>Billiards Game</title>
    <style>
        canvas {
            border: 1px solid #000;
        }
    </style>
</head>
<body>
    <canvas id="gameCanvas" width="800" height="400"></canvas>

// Define the ball properties
        const ballRadius = 10;
        let ballX = canvas.width / 2;
        let ballY = canvas.height / 2;
        let ballDX = -2;
        let ballDY = 2;

// Define the cue stick properties
        const cueStickHeight = 80;
        const cueStickWidth = 10;
        let cueStickX = canvas.width - cueStickWidth;
        let cueStickY = (canvas.height - cueStickHeight) / 2;
        let isCueStickMovingUp = false;
        let isCueStickMovingDown = false;

// Add event listeners to control the cue stick
        document.addEventListener("keydown", handleKeyDown);
        document.addEventListener("keyup", handleKeyUp);

// Functions to handle keydown and keyup events
        function handleKeyDown(event) {
            if (event.key === "ArrowUp") {
                isCueStickMovingUp = true;
            } else if (event.key === "ArrowDown") {
                isCueStickMovingDown = true;
            }
        }

function handleKeyUp(event) {
            if (event.key === "ArrowUp") {
                isCueStickMovingUp = false;
            } else if (event.key === "ArrowDown") {
                isCueStickMovingDown = false;
            }
        }

// Function to update the cue stick position
        function updateCueStickPosition() {
            if (isCueStickMovingUp && cueStickY > 0) {
                cueStickY -= 5;
            } else if (isCueStickMovingDown && cueStickY + cueStickHeight < canvas.height) {
                cueStickY += 5;
            }
        }

// Function to update the ball position
        function updateBallPosition() {
            ballX += ballDX;
            ballY += ballDY;

// Reverse the horizontal direction if the ball hits the left or right wall
            if (ballX + ballRadius > canvas.width || ballX - ballRadius < 0) {
                ballDX = -ballDX;
            }

// Reverse the vertical direction if the ball hits the top or bottom wall
            if (ballY + ballRadius > canvas.height || ballY - ballRadius < 0) {
                ballDY = -ballDY;
            }
        }

// Function to draw the ball
        function drawBall() {
            ctx.beginPath();
            ctx.arc(ballX, ballY, ballRadius, 0, Math.PI * 2);
            ctx.fillStyle = "#0095DD";
            ctx.fill();
            ctx.closePath();
        }

// Function to draw the cue stick
        function drawCueStick() {
            ctx.beginPath();
            ctx.rect(cueStickX, cueStickY, cueStickWidth, cueStickHeight);
            ctx.fillStyle = "#0095DD";
            ctx.fill();
            ctx.closePath();
        }

// Function to clear the canvas before each frame
        function clearCanvas() {
            ctx.clearRect(0, 0, canvas.width, canvas.height);
        }

// Main game loop
        function gameLoop() {
            clearCanvas();
            drawBall();
            drawCueStick();
            updateCueStickPosition();
            updateBallPosition();
            requestAnimationFrame(gameLoop);
        }

// Start the game loop
        gameLoop();
    </script>
</body>
</html>