Creating a Simple Game

Game Development is the process of designing, developing, and maintaining video games.

Key Concepts

• Game Logic: Rules that determine how the game works.
• User Input: How players interact with the game.
• Canvas: A surface on which to draw game elements.
• Game Elements: Objects, characters, and other interactive components.

Simple JavaScript Example

// Create a canvas
const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d');

// Set canvas dimensions
canvas.width = 500;
canvas.height = 500;

// Create a player object
const player = {
  x: 0,
  y: 0,
  speed: 5,
};

// Handle user input
document.addEventListener('keydown', e => {
  if (e.key === 'ArrowUp') player.y -= player.speed;
  if (e.key === 'ArrowDown') player.y += player.speed;
  if (e.key === 'ArrowLeft') player.x -= player.speed;
  if (e.key === 'ArrowRight') player.x += player.speed;
});

// Draw the player
function drawPlayer() {
  ctx.fillStyle = 'blue';
  ctx.fillRect(player.x, player.y, 10, 10);
}

// Game loop
function gameLoop() {
  ctx.clearRect(0, 0, canvas.width, canvas.height);
  drawPlayer();
  requestAnimationFrame(gameLoop);
}

// Start the game
gameLoop();

This example demonstrates:

• Creating a canvas for the game.
• Defining game logic for player movement.
• Handling user input through keypress events.
• Drawing the player using the canvas context.
• Running the game in a loop using requestAnimationFrame.