Now more like an actual game. Score, lives, and when you die, you get
respawned. If you die rnough times, you Game Over, and your lives and
score are reset. Each time you get 10000 points, you gain a life!
Add GameMode enum
Add GameDataSystem which manipulates the current game data based on events.
Add GameDataRenderSystem which renders the current game data.
Add AsteroidHitEvent and PlayerDeathEvent which are are fired when an
asteroid is destroyed or the player is killed, respectively.
Add SpriteBatch to Graphics
Matt Low
fa809148a7