Added

-Rock item.

-Reset and exit button in world settings.

-Settings for the collision detection and fragment auto deleting.

-UI sound.

-Help section with controls.

-World settings, game settings and items menu.

-Secret...

Fixed

-Double breaking resulting in more fragments.

-Clipping of the walls on the right side.

-Floor not being equal to the rounded placement value of items.

-Particles clipping into the ground.

-Really dumb mistake with the volume equation. 

-Version text being cut out.