Mouse Cursor Aiming!

[zero00]

I was inspired by the game, Sin and Punishment, recently and I wanted to try and make a cursor that moved in real time when the mouse moved. This experiment is working pretty well so far. (Had to do some difficult math and guesswork, though)

The cursor aiming code is bit "laggy", but I'll figure out to do fix it! (possibly...maybe)

BTW the spinning icosahedron is simply there for me to visually check for lag. It does nothing else. Also, after clicking the dot, do not resize the window, and if there any black bars around the window, please close the world and reopen it until they are gone.

Here it is!

Please download this and, if you want, see if you can find any way to improve this code!

Edit: I've streamlined the code a little. It runs much smoother! Please download Test 2!