Before I release my massive mod (which is still about 40% completed and soon I might open a development thread about it..) I must create another sub-plugin in order to exploit an error.
After I complete the plugin I will release it so that it can help everyone who is experiencing the same problem. (Solution to that problem hasn't been published under the relating names for keysearching)
Anyway,
To do that I need to be sure in what is the right forward to use.
I need a function call only when the client is exploring the world i.e move the mouse around, arrow keys, walk/run or anything that changes the view angle for that matter.