Develop the core functionality of a snake game where the player controls a growing snake to eat items while avoiding collisions with walls or itself.

Introduction to the Template

Welcome to the "Snake Slither: Core Gameplay Challenge" template! This template helps you develop the core functionality of a snake game where the player controls a growing snake to eat items while avoiding collisions with walls or itself. This guide will walk you through the steps to get this template up and running using Lazy.

Clicking Start with this Template

To get started, click the Start with this Template button. This will load the template into the Lazy Builder interface.

Test

Once the template is loaded, press the Test button. This will begin the deployment of the app and launch the Lazy CLI. The Lazy platform will handle all the deployment steps for you.

Using the App

After the deployment is complete, you will be provided with a link to access the app. Open this link in your web browser to start using the Snake game.

Game Interface

• Title: The game is titled "Snake Slither: Core Gameplay Challenge".
• Score Display: The current score is displayed at the top of the screen.
• Game Canvas: The game is played on a 400x400 pixel canvas with a black background.
• Buttons: There are two buttons available:
• Start: Begins the game.
• Restart: Resets the game.

How to Play

1. Start the Game: Click the Start button to begin the game.
2. Control the Snake: Use the arrow keys on your keyboard to control the direction of the snake:
3. Left Arrow: Move left
4. Right Arrow: Move right
5. Up Arrow: Move up
6. Down Arrow: Move down
7. Eat Food: Guide the snake to eat the red food items that appear on the canvas. Each time the snake eats food, it grows longer, and your score increases.
8. Avoid Collisions: Avoid running into the walls or the snake's own body. If a collision occurs, the game will reset.

Integrating the App

There are no additional external integration steps required for this template. The game runs entirely within the provided web interface.

Sample Code

Here is a brief overview of the code provided in the template:

template.html

```html

Snake Game

Start Restart

```

main.py

```python import logging from flask import Flask, render_template from gunicorn.app.base import BaseApplication

logging.basicConfig(level=logging.INFO) logger = logging.getLogger(name)

app = Flask(name)

@app.route("/") def root_route(): return render_template("template.html")

class StandaloneApplication(BaseApplication): def init(self, app, options=None): self.application = app self.options = options or {} super().init()

def load_config(self):
    config = {
        key: value
        for key, value in self.options.items()
        if key in self.cfg.settings and value is not None
    }
    for key, value in config.items():
        self.cfg.set(key.lower(), value)

def load(self):
    return self.application

if name == "main": options = {"bind": "%s:%s" % ("0.0.0.0", "8080"), "workers": 4, "loglevel": "info"} StandaloneApplication(app, options).run() ```

snake.js

```javascript const canvas = document.getElementById('gameCanvas'); const ctx = canvas.getContext('2d');

const gridSize = 20; const tileCount = canvas.width / gridSize;

let snake = [{x: 10, y: 10}]; let dx = 0; let dy = 0; let food = {x: 15, y: 15}; let score = 0;

function drawGame() { clearCanvas(); moveSnake(); drawSnake(); drawFood(); checkCollision(); updateScore(); setTimeout(drawGame, 100); }

function clearCanvas() { ctx.fillStyle = 'black'; ctx.fillRect(0, 0, canvas.width, canvas.height); }

function moveSnake() { const head = {x: snake[0].x + dx, y: snake[0].y + dy}; snake.unshift(head);

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

function drawSnake() { ctx.fillStyle = 'lime'; snake.forEach(segment => { ctx.fillRect(segment.x * gridSize, segment.y * gridSize, gridSize - 2, gridSize - 2); }); }

function drawFood() { ctx.fillStyle = 'red'; ctx.fillRect(food.x * gridSize, food.y * gridSize, gridSize - 2, gridSize - 2); }

function generateFood() { food = { x: Math.floor(Math.random() * tileCount), y: Math.floor(Math.random() * tileCount) }; }

function checkCollision() { const head = snake[0];

if (head.x < 0 || head.x >= tileCount || head.y < 0 || head.y >= tileCount) { resetGame(); }

for (let i = 1; i < snake.length; i++) { if (head.x === snake[i].x && head.y === snake[i].y) { resetGame(); } } }

function resetGame() { snake = [{x: 10, y: 10}]; dx = 0; dy = 0; score = 0; generateFood(); }

function updateScore() { document.getElementById('score').textContent = score; }

document.addEventListener('keydown', changeDirection);

function changeDirection(event) { const LEFT_KEY = 37; const RIGHT_KEY = 39; const UP_KEY = 38; const DOWN_KEY = 40;

const keyPressed = event.keyCode;

const goingUp = dy === -1; const goingDown = dy === 1; const goingRight = dx === 1; const goingLeft = dx === -1;

if (keyPressed === LEFT_KEY && !goingRight) { dx = -1; dy = 0; }

if (keyPressed === UP_KEY && !goingDown) { dx = 0; dy = -1; }

if (keyPressed === RIGHT_KEY && !goingLeft) { dx = 1; dy = 0; }

if (keyPressed === DOWN_KEY && !goingUp) { dx = 0; dy = 1; } }

document.getElementById('startButton').addEventListener('click', startGame); document.getElementById('restartButton').addEventListener('click', resetGame);

function startGame() { resetGame(); drawGame(); }

generateFood(); ```

requirements.txt

Flask gunicorn werkzeug

This template provides a complete setup for a basic snake game. Follow the steps above to deploy and start playing the game. Enjoy coding and have fun with your snake game!

Template Benefits

1. Employee Engagement Tool: This snake game template can be customized and used as a fun, interactive element in company intranets or employee portals, boosting morale and providing a quick stress-relief activity during breaks.

2. Brand Awareness Campaign: Businesses can adapt this template to create a branded mini-game for marketing campaigns, increasing user engagement on their websites and improving brand recall.

3. Educational Resource: The template can serve as a practical coding example for businesses offering programming courses or workshops, demonstrating basic game development concepts using HTML, JavaScript, and Python.

4. Customer Retention Strategy: E-commerce platforms or apps can integrate this game as a loyalty program feature, allowing customers to earn points or discounts while playing, thus increasing user retention and repeat visits.

5. Skill Assessment Tool: HR departments or recruitment agencies can modify this template to create a gamified skill assessment test, evaluating candidates' problem-solving abilities and hand-eye coordination in a fun, low-pressure environment.