Space Invaders. Test of game scene

Added many minor changes and improvements to the Space Invaders clone

- Added a pixel font to the game

- The player's score is now displayed on the screen

- Updated the main menu (test version)

Now the invaders can move too. After each step they change texture, like in the original game

Space Invaders. Enemies can shoot!

Bunkers and Lives

1) #spawnday 2) I have 21 lvl (Nobody guessed )

I'm developing a Space Invaders clone to test my engine - Added a VERY optimized collision system

Added bunkers that protect the player from bullets

Added a UFO to the game and almost finished the gameplay. Destroying a UFO awards the player a random number of points (from 50 to 300)