Fix MSVC compilation (compiler bug ?)
Fix MSVC compilation (compiler bug ?)

Mizugola/MeltingSaga,Sygmei/ObEngine,Mizugola/MeltingSagaEngine,Mizugola/ObEngine,Zarakichi/ObEngine,Mizugola/ObEngine,Mizugola/MeltingSagaEngine,Sygmei/ObEngine,Mizugola/MeltingSaga,Zarakichi/ObEngine,Zarakichi/ObEngine