シューティングゲーム's game

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No:51719

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シューティングゲーム
Developer User21663｜Date and time 24/3/15 20:39:44
Build time 12.446 sec｜Game capacity 2.953KB｜

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[PR]現在の欲しいものランキング

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

<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>シューティングゲーム</title>
<style>
    body {
        margin: 0;
        padding: 0;
        overflow: hidden;
    }
    canvas {
        background: #000;
        display: block;
        margin: 0 auto;
    }
</style>
</head>
<body>
<canvas id="gameCanvas" width="800" height="600"></canvas>
<script>
    const canvas = document.getElementById('gameCanvas');
    const ctx = canvas.getContext('2d');

const player = {
        x: canvas.width / 2,
        y: canvas.height - 50,
        size: 20,
        color: '#ff0000',
        speed: 5
    };

const bullets = [];
    const enemies = [];

let score = 0;

function drawPlayer() {
        ctx.fillStyle = player.color;
        ctx.fillRect(player.x - player.size / 2, player.y - player.size / 2, player.size, player.size);
    }

function drawBullets() {
        bullets.forEach(bullet => {
            ctx.fillStyle = '#00ff00';
            ctx.fillRect(bullet.x - 2, bullet.y - 10, 4, 10);
        });
    }

function drawEnemies() {
        enemies.forEach(enemy => {
            ctx.fillStyle = '#ffff00';
            ctx.fillRect(enemy.x - enemy.size / 2, enemy.y - enemy.size / 2, enemy.size, enemy.size);
        });
    }

function update() {
        updateBullets();
        updateEnemies();
    }

function draw() {
        ctx.clearRect(0, 0, canvas.width, canvas.height);
        drawPlayer();
        drawBullets();
        drawEnemies();
    }

function gameLoop() {
        update();
        draw();
        requestAnimationFrame(gameLoop);
    }

gameLoop();

document.addEventListener('keydown', event => {
        if (event.key === ' ') {
            bullets.push({ x: player.x, y: player.y });
        }
    });