Implemented functionality to only start after the user clicks their
mouse
Changed setDirection() in creature to a protected method as it needs to
be used by it's children but not anyone outside
Changed rand variable in creature to protected as SlowP and FastP will
be using it to determine their behaviour
Changed the Predator class' rightClick() and leftClick() method into
leftTurn() and rightTurn() and moved it up to it's parent Creature
class. This is so that when developing SlowP and FastP to move they can
turn left and right.
Implemented the random movement in SlowP, it makes no preference in
direction.
Created a variable in Prey than stores the position of the predator.
Then used that variable in determining which direction the FastP turns.