Snake Game

Play Snake on any webpage by pressing 'S'

Цей скрипт не слід встановлювати безпосередньо. Це - бібліотека для інших скриптів для включення в мета директиву // @require https://update.greatest.deepsurf.us/scripts/491883/1355808/Snake%20Game.js

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Snake Game
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Play Snake on any webpage by pressing 'S'
// @author       You
// @match        https://*/*
// @match        http://*/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    let snakeInterval;
    let snake;
    let food;
    let direction;
    let score;

    function initSnake() {
        snake = [{x: 10, y: 10}];
        food = getRandomPosition();
        direction = 'right';
        score = 0;
        snakeInterval = setInterval(moveSnake, 100);
    }

    function getRandomPosition() {
        return {
            x: Math.floor(Math.random() * 20),
            y: Math.floor(Math.random() * 20)
        };
    }

    function moveSnake() {
        const head = { ...snake[0] };

        switch (direction) {
            case 'up':
                head.y--;
                break;
            case 'down':
                head.y++;
                break;
            case 'left':
                head.x--;
                break;
            case 'right':
                head.x++;
                break;
        }

        if (head.x < 0 || head.x >= 20 || head.y < 0 || head.y >= 20 || isSnakeCollided(head)) {
            clearInterval(snakeInterval);
            alert('Game Over! Score: ' + score);
            initSnake();
            return;
        }

        snake.unshift(head);

        if (head.x === food.x && head.y === food.y) {
            score++;
            food = getRandomPosition();
        } else {
            snake.pop();
        }

        drawSnake();
    }

    function isSnakeCollided(head) {
        return snake.some(segment => segment.x === head.x && segment.y === head.y);
    }

    function drawSnake() {
        const canvas = document.getElementById('snakeCanvas');
        const ctx = canvas.getContext('2d');

        ctx.clearRect(0, 0, canvas.width, canvas.height);

        snake.forEach(segment => {
            ctx.fillStyle = 'green';
            ctx.fillRect(segment.x * 20, segment.y * 20, 20, 20);
        });

        ctx.fillStyle = 'red';
        ctx.fillRect(food.x * 20, food.y * 20, 20, 20);
    }

    function handleKeydown(event) {
        switch (event.key) {
            case 'ArrowUp':
                direction = 'up';
                break;
            case 'ArrowDown':
                direction = 'down';
                break;
            case 'ArrowLeft':
                direction = 'left';
                break;
            case 'ArrowRight':
                direction = 'right';
                break;
            case 's':
            case 'S':
                if (!snakeInterval) {
                    initSnake();
                }
                break;
        }
    }

    function createCanvas() {
        const canvas = document.createElement('canvas');
        canvas.id = 'snakeCanvas';
        canvas.width = 400;
        canvas.height = 400;
        canvas.style.border = '1px solid black';
        canvas.style.position = 'fixed';
        canvas.style.top = '50%';
        canvas.style.left = '50%';
        canvas.style.transform = 'translate(-50%, -50%)';
        canvas.style.zIndex = '9999';
        document.body.appendChild(canvas);
    }

    createCanvas();
    document.addEventListener('keydown', handleKeydown);

})();