Configs + tutorial + gamepad controls + random fruits

Hi everyone!

In this first update of the game I tried to include basic stuff and a change on the mechanics:

Random fruits

Now the fruit on the board keeps changing it's icon so you have a chance to avoid eating the fruit that would most increase the snake size.

Gamepad controls

Now you can play the game using your gamepad! Working with PS4 and Xbox controllers.

Tutorial

A small tutorial just before the match explains the game rules and also the controls to make it easier for new players.

Multiple configurations

You can now change the game configurations just like music enabled or not, sound volume and fullscreen or windowed mode.

Improved transitions

I have improved the game transitions between screen to make it look more pleasant.

Have fun!