author added
Adding sound part to the project:
-Add doc/sound : text file listing sounds used by the game
-Add tests/sounds : folder to group all sounds files
start a simple physics engine
add a simple map
add more collision detection (static/dynamic)
remove Position, Speed and Vector, use sf::Vector2f instead
add collision resolution and position correction
fix some errors in the physics engine
add a prototype for physics
fix some bugs, add some log and reindent
add a clear method in Physics
add a demo for physics!
add some examples
Added branch
Added client map visitor
add layer handling
add a callback mecanism for collisions
Creating branch for sound tests
Removed resourceManager from clientMap
Adding new sounds for the game