Space Invaders Game

A classic arcade-style Space Invaders game implementation using HTML, CSS, and JavaScript. Players defend against waves of descending aliens while trying to achieve the highest score possible.

Game Features

• Three challenging levels with increasing difficulty
• Score tracking system
• Lives system with three lives per game
• Protective walls that can be destroyed
• Enemy ships with animated sprites
• Responsive ship controls
• Pause/Resume functionality

Controls

• Left Arrow: Move ship left
• Right Arrow: Move ship right
• Spacebar: Shoot
• Pause Button: Pause/Resume game
• Escape:show menu

Gameplay Elements

Player Ship

• Located at the bottom of the screen
• Can move left and right
• Shoots bullets upward to destroy enemies

Enemies

• Multiple rows of aliens that move side to side
• Descend towards the player
• Randomly shoot projectiles
• Feature alternating sprite animations
• Each enemy destroyed awards 5 points

Protective Walls

• Three destructible barriers
• Provide cover from enemy fire
• Can be damaged by both player and enemy shots
• Strategically placed between player and enemies

Scoring System

• Each enemy destroyed: 5 points
• Score displayed with leading zeros (e.g., "0005")

Game Mechanics

Level Progression

• Game features 3 levels
• Each level increases:
  • Number of enemies
  • Enemy movement speed
  • Challenge level

Game Over Conditions

• Player loses all three lives
• Enemies reach the bottom of the screen
• Completing all three levels (Victory)

Features

• Pause/Resume functionality
• Restart option
• Level indicator
• Life counter
• Score display
• Animated game over messages

Technical Details

The game uses several key JavaScript features:

• RequestAnimationFrame for smooth animations
• Collision detection system
• Throttled shooting mechanics
• Dynamic element creation and removal
• Event listeners for user input
• Sprite animation system

Installation

1. Clone or download the repository
2. Ensure all game assets (including sprite images 'InvaderB1.png' and 'InvaderB2.png') are in the correct directory
3. Open the HTML file in a web browser to start playing

Future Enhancements

Potential areas for future development:

• High score system
• Sound effects and background music
• Additional enemy types
• Power-up system
• Mobile device support
• Difficulty settings

Credits

This Space Invaders clone is inspired by the classic 1978 arcade game created by Tomohiro Nishikado and manufactured by Taito.