So, currents act sorta like flowing water, but they are only created in rivers. The computer will recognize a river, a beginning point of the river and then add currents that originate at the beginning point and flow through. The water would look almost like still water, with some SLIGHT changes to make it look moving.
i dont like this..it gives too many more chances to confuse the game causeing strange flowing water or being confused what way to flow....say there should be a waterfall but it happens to be on the wrong side of the curent making the watter climb the wall instead of fall..or what happens when you take a bucket of that water..? or when you start digging the shore line? or what if you you put a bucket of water flowing the "wrong way" what happens?