SpaceInvaders-SDL

A complete Space Invaders game made using SDL2 in C++. Small project I've been working on in my spare time for fun.

Full game showcase video: https://www.youtube.com/watch?v=tejSJq9U4xs

Gameplay Features

• Player can destroy aliens in order to gain score
• When the player destroys all aliens, they move onto the next round and gain an additional life
• Can press the esc key to pause the game
• The game is virtually endless and can only end if either of the following conditions are met:
  • If the player runs out of lives, the player gets taken to the game over screen
  • If the aliens reach the ending line, the player gets taken to the game over screen
• Player can hide behind the blocks which take damage and can be destroyed upon hit
• The blocks will respawn on game reset
• The game over screen displays final score and why the player was brought to the game over screen
• Each type of alien is worth a different amount of score:
  • Lower Alien: 10
  • Middle Alien: 20
  • Upper Alien: 30
  • Boss Alien: ???

Program Features

• Uses SDL2 and its other libraries: SDL2_image, SDL2_mixer, SDL2_ttf
• The levels geometry and starting objects are created using the Tiled application
• Levels created in Tiled are saved as a .tmx (.xml) file and read from the program
• The level files are read, decoded and decompressed with the help of other libraries: tinyXML, Base64, zlib
• The game uses a Finite State Machine to organise and swap between the states
• Currently, there are four states which can be changed too:
  • PlayState
  • MainMenuState
  • PauseState
  • GameOverState
• Game has audio support and has sound effects and a looping music track
• Game has TrueType font support