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Diffstat (limited to 'src/crepe/manager/Mediator.h')
-rw-r--r-- | src/crepe/manager/Mediator.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/crepe/manager/Mediator.h b/src/crepe/manager/Mediator.h new file mode 100644 index 0000000..e9c10b1 --- /dev/null +++ b/src/crepe/manager/Mediator.h @@ -0,0 +1,35 @@ +#pragma once + +#include "../util/OptionalRef.h" + +// TODO: remove these singletons: +#include "EventManager.h" +#include "SaveManager.h" + +namespace crepe { + +class ComponentManager; +class SceneManager; +class ResourceManager; + +/** + * Struct to pass references to classes that would otherwise need to be singletons down to + * other classes within the engine hierarchy. Made to prevent constant changes to subclasses to + * pass specific references through dependency injection. All references on this struct + * *should* be explicitly checked for availability as this struct does not guarantee anything. + * + * \note Dereferencing members of this struct should be deferred. If you are a user of this + * class, keep a reference to this mediator instead of just picking references from it when you + * receive an instance. + * + * \warning This class should never be directly accessible from the API + */ +struct Mediator { + OptionalRef<ComponentManager> component_manager; + OptionalRef<SceneManager> scene_manager; + OptionalRef<SaveManager> save_manager = SaveManager::get_instance(); + OptionalRef<EventManager> event_manager = EventManager::get_instance(); + OptionalRef<ResourceManager> resource_manager; +}; + +} // namespace crepe |