Combining Code

Today I have managed to combine the code I have written with the code Ben wrote.  It works well enough with the flow affecting the species making them change direction, unfortunately it does not work as I feel it should.  I feel that to get the feeling that the user is affecting the game world the flow has to be able to accelerate the species over the max velocity of the species when they are just swimming.  I feel it will make the player more engrossed as they can affect the world more.