part1 proj: add -Wswitch to suppess clang warning

examples/Game/part1/proj.cmake/CMakeLists.txt

@@ -6,11 +6,11 @@ add_definitions(${OXYGINE_DEFINITIONS})
 include_directories(${OXYGINE_INCLUDE_DIRS})
 link_directories(${OXYGINE_LIBRARY_DIRS})
 
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wswitch")
 add_executable(GamePart1 ../src/Game.cpp ../src/Joystick.cpp ../src/Player.cpp ../src/Unit.cpp ../src/entry_point.cpp ../src/example.cpp ../src/res.cpp  ../src/Game.h ../src/Joystick.h ../src/Player.h ../src/Unit.h ../src/example.h ../src/res.h )
 
 if (WIN32) #disable console mode for VC++
 	set_target_properties(GamePart1 PROPERTIES WIN32_EXECUTABLE TRUE)
 endif(WIN32)
 
-target_link_libraries(GamePart1 ${OXYGINE_CORE_LIBS})
+target_link_libraries(GamePart1 ${OXYGINE_CORE_LIBS})