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No:49117

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ELITE space game
Developer User18896｜Date and time 24/3/3 22:04:49
Build time 8.812 sec｜Game capacity 2.014KB｜

Script

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

<!DOCTYPE html>
<html>
<head>
    <title>ELITE Space Game</title>
</head>
<body>
    <canvas id="gameCanvas" width="800" height="600"></canvas>
    
    <script>
        const canvas = document.getElementById("gameCanvas");
        const ctx = canvas.getContext("2d");
        
        let spaceship = {
            x: canvas.width / 2,
            y: canvas.height - 50,
            width: 50,
            height: 50,
            speed: 5
        };
        
        let leftPressed = false;
        let rightPressed = false;
        
        document.addEventListener("keydown", keyDownHandler);
        document.addEventListener("keyup", keyUpHandler);
        
        function keyDownHandler(event) {
            if(event.key === "ArrowLeft") {
                leftPressed = true;
            } else if(event.key === "ArrowRight") {
                rightPressed = true;
            }
        }
        
        function keyUpHandler(event) {
            if(event.key === "ArrowLeft") {
                leftPressed = false;
            } else if(event.key === "ArrowRight") {
                rightPressed = false;
            }
        }
        
        function drawSpaceship() {
            ctx.beginPath();
            ctx.rect(spaceship.x, spaceship.y, spaceship.width, spaceship.height);
            ctx.fillStyle = "white";
            ctx.fill();
            ctx.closePath();
        }
        
        function moveSpaceship() {
            if(rightPressed && spaceship.x < canvas.width - spaceship.width) {
                spaceship.x += spaceship.speed;
            } else if(leftPressed && spaceship.x > 0) {
                spaceship.x -= spaceship.speed;
            }
        }
        
        function drawGame() {
            ctx.clearRect(0, 0, canvas.width, canvas.height);
            drawSpaceship();
            moveSpaceship();
        }
        
        function startGame() {
            setInterval(drawGame, 10);
        }
        
        startGame();
    </script>
</body>
</html>