created init functions for each class, overwriting in list zones removed
add Dart version
Merge pull request #14 from mukulrawat1986/master

created init functions for each class, overwriting in list zones removed
correct error on print output
Merge pull request #15 from Kleak/master

add Dart version
Player.php based on player1.py
Merge pull request #16 from pgerrier/master

Player.php based on player1.py
Update Player.php