More abstracted class of the bullets, and it is easy to extend it. This is more recommended than Bullet.
If provides the default implementations of update, collide.
KKoishi_
The universally unique identifier(UUID) of this object
Test if the object collide with another object o.
Collide test, and it is unnecessary to override this method, otherwise you know how this works.
The entity which fired this, and you can just return null.
Determines how the bullet moves.
Render the object.
Get the coordinates of the bullet.
The shape for collide test.
Check the state of the object, and if this need to be removed, true should be returned.
Get the X coordinates of the bullet in int.
Get the X coordinates of the bullet in double.
Get the Y coordinates of the bullet in int.
Get the Y coordinates of the bullet in double.