UFO Hunters

Overview

UFO Hunters is a 2D arcade-style game developed using the Gosu library in Ruby. The player controls a spaceship and must shoot down incoming invaders and avoid missiles while collecting hearts to gain extra lives. The game features multiple types of enemies, animated explosions, and a scoring system.

Sample results

Game Mechanics

• Player: Control a spaceship to move left and right and shoot bullets.
• Enemies: Invaders and invader bosses appear from the top and move downwards. The player must shoot them to earn points.
• Missiles: Randomly generated from destroyed invaders, move downwards, and must be avoided.
• Hearts: Randomly generated from destroyed invaders, move downwards, and provide extra lives when collected.
• Explosions: Animated explosions occur when invaders are destroyed.

Controls

• Arrow Keys: Move the spaceship left and right.
• Space Bar: Shoot bullets.
• P Key: Play again after game over.
• Q Key: Quit the game.

Installation

1. Clone the Repository:

   git clone https://github.com/dan9704/ufo-hunters.git
   cd ufo-hunters
   

2. Install Dependencies: Ensure you have Ruby and Gosu installed. You can install Gosu using the following command:

   gem install gosu
   

3. Run the Game:

   ruby game.rb
   

Game Features

• Animated Background: The background moves to simulate spaceship movement.
• Multiple Enemy Types: Includes standard invaders and invader bosses with more health points.
• Scoring System: Earn points by shooting invaders.
• Lives System: The player starts with 3 lives, and collecting hearts grants additional lives.
• Game Over Screen: Displays the final score and allows the player to play again or quit.

Assets and Sounds

• Images: Includes images for the player spaceship, invaders, missiles, hearts, and explosions.
• Sounds: Background music, shooting sound, explosion sound, and bonus life sound.

File Structure

• main.rb: Contains the main game logic and window setup.
• classes.rb: Defines all game classes including Player, Invader, Missile, Heart, Explosion, etc.
• images/: Contains all image assets used in the game.
• sounds/: Contains all sound assets used in the game.

Development

Feel free to fork this repository and make your own modifications to the game. Contributions are welcome!

License

This project is licensed under the MIT License. See the LICENSE file for details.