by tnkqwe or tnk_x5000
The pferab is made for learning(if it's possible).Triangle teran tutorials can be found in www.snarkpit.net .
http://www.snarkpit.net/index.php?s=articles&article=14
http://www.snarkpit.net/index.php?s=articles&article=16
http://www.snarkpit.net/index.php?s=articles&article=15