Merge pull request #11 from HappyQuick/develop

change player_manager
Merge pull request #12 from HappyQuick/develop

modify player_manager.py
Merge pull request #13 from HappyQuick/develop

start inplementation of game.py
Merge pull request #14 from HappyQuick/develop

test
Merge pull request #15 from HappyQuick/develop

Develop
Merge pull request #16 from HappyQuick/develop

test
Merge pull request #17 from HappyQuick/develop

debug game.py
change game.py

add lambda and debug function