Juego de la serpiente

1,894 Anes_unk

Abrir en el editor Publica tu código

Recomendado

4 December 2025

Animación de árbol de Navidad SVG con JavaScript

29 June 2025

Fragmento de código del menú desplegable HTML

11 March 2024

Plantilla HTML CSS para sitio web de portafolio

HTML

CSS

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

canvas.width = 500;
canvas.height = 500;

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

if (direction === 'UP') head.y -= blockSize;
  if (direction === 'DOWN') head.y += blockSize;
  if (direction === 'LEFT') head.x -= blockSize;
  if (direction === 'RIGHT') head.x += blockSize;

snake.unshift(head);

if (head.x === food.x && head.y === food.y) {
    score += 10;
    food = generateFood();
    updateScore();
    if (score % 50 === 0) {
      speed -= 10;
    }
  } else {
    snake.pop();
  }
}

function generateFood() {
  let x = Math.floor(Math.random() * (canvas.width / blockSize)) * blockSize;
  let y = Math.floor(Math.random() * (canvas.height / blockSize)) * blockSize;
  return { x, y };
}

function drawFood() {
  ctx.fillStyle = 'red';
  ctx.fillRect(food.x, food.y, blockSize, blockSize);
}

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

if (head.x < 0 || head.x >= canvas.width || head.y < 0 || head.y >= canvas.height) {
    gameOver = true;
  }

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

function updateScore() {
  document.getElementById('scoreDisplay').innerText = `Score: ${score}`;
}

function draw() {
  ctx.clearRect(0, 0, canvas.width, canvas.height);
  drawSnake();
  drawFood();
}

function gameLoop() {
  if (gameOver) return showGameOver();

moveSnake();
  checkCollisions();
  draw();
}

function showGameOver() {
  document.getElementById('gameOverText').style.display = 'block';
}

setInterval(gameLoop, speed);