diff options
Diffstat (limited to 'src/system_manager.h')
-rw-r--r-- | src/system_manager.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/system_manager.h b/src/system_manager.h new file mode 100644 index 0000000..e2c98cb --- /dev/null +++ b/src/system_manager.h | |||
@@ -0,0 +1,44 @@ | |||
1 | #ifndef SYSTEM_MANAGER_H_544E6056 | ||
2 | #define SYSTEM_MANAGER_H_544E6056 | ||
3 | |||
4 | #include <list> | ||
5 | #include <memory> | ||
6 | #include <map> | ||
7 | #include <typeindex> | ||
8 | #include <stdexcept> | ||
9 | #include "system.h" | ||
10 | |||
11 | class SystemManager { | ||
12 | private: | ||
13 | |||
14 | std::list<std::unique_ptr<System>> loop; | ||
15 | std::map<std::type_index, System*> systems; | ||
16 | |||
17 | public: | ||
18 | |||
19 | template <class T, class... Args> | ||
20 | void emplaceSystem(Game& game, Args&&... args) | ||
21 | { | ||
22 | std::unique_ptr<T> ptr(new T(game, std::forward<Args>(args)...)); | ||
23 | std::type_index systemType = typeid(T); | ||
24 | |||
25 | systems[systemType] = ptr.get(); | ||
26 | loop.push_back(std::move(ptr)); | ||
27 | } | ||
28 | |||
29 | template <class T> | ||
30 | T& getSystem() | ||
31 | { | ||
32 | std::type_index systemType = typeid(T); | ||
33 | |||
34 | if (!systems.count(systemType)) | ||
35 | { | ||
36 | throw std::invalid_argument("Cannot get non-existent system"); | ||
37 | } | ||
38 | |||
39 | return *dynamic_cast<T*>(systems[systemType]); | ||
40 | } | ||
41 | |||
42 | }; | ||
43 | |||
44 | #endif /* end of include guard: SYSTEM_MANAGER_H_544E6056 */ | ||