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Add ability to register singletons from engine API

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* Exposed functions in Engine to register and unregister singletons.
* Added the concept of user singletons, which can be removed (the system ones can't).
This commit is contained in:
reduz
2021-08-24 19:03:10 -03:00
parent ca7f53dd25
commit e2f8df8c5b
5 changed files with 90 additions and 11 deletions
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35
core/core_bind.cpp
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@@ -2165,14 +2165,41 @@ bool Engine::is_in_physics_frame() const {
return ::Engine::get_singleton()->is_in_physics_frame();
}
bool Engine::has_singleton(const String &p_name) const {
bool Engine::has_singleton(const StringName &p_name) const {
return ::Engine::get_singleton()->has_singleton(p_name);
}
Object *Engine::get_singleton_object(const String &p_name) const {
Object *Engine::get_singleton_object(const StringName &p_name) const {
return ::Engine::get_singleton()->get_singleton_object(p_name);
}
void Engine::register_singleton(const StringName &p_name, Object *p_object) {
ERR_FAIL_COND_MSG(has_singleton(p_name), "Singleton already registered: " + String(p_name));
ERR_FAIL_COND_MSG(p_name.operator String().is_valid_identifier(), "Singleton name is not a valid identifier: " + String(p_name));
::Engine::Singleton s;
s.class_name = p_name;
s.name = p_name;
s.ptr = p_object;
s.user_created = true;
::Engine::get_singleton()->add_singleton(s);
;
}
void Engine::unregister_singleton(const StringName &p_name) {
ERR_FAIL_COND_MSG(!has_singleton(p_name), "Attempt to remove unregisteres singleton: " + String(p_name));
ERR_FAIL_COND_MSG(!::Engine::get_singleton()->is_singleton_user_created(p_name), "Attempt to remove non-user created singleton: " + String(p_name));
::Engine::get_singleton()->remove_singleton(p_name);
}
Vector<String> Engine::get_singleton_list() const {
List<::Engine::Singleton> singletons;
::Engine::get_singleton()->get_singletons(&singletons);
Vector<String> ret;
for (List<::Engine::Singleton>::Element *E = singletons.front(); E; E = E->next()) {
ret.push_back(E->get().name);
}
return ret;
}
void Engine::set_editor_hint(bool p_enabled) {
::Engine::get_singleton()->set_editor_hint(p_enabled);
}
@@ -2220,6 +2247,10 @@ void Engine::_bind_methods() {
ClassDB::bind_method(D_METHOD("has_singleton", "name"), &Engine::has_singleton);
ClassDB::bind_method(D_METHOD("get_singleton", "name"), &Engine::get_singleton_object);
ClassDB::bind_method(D_METHOD("register_singleton", "name", "instance"), &Engine::register_singleton);
ClassDB::bind_method(D_METHOD("unregister_singleton", "name"), &Engine::unregister_singleton);
ClassDB::bind_method(D_METHOD("get_singleton_list"), &Engine::get_singleton_list);
ClassDB::bind_method(D_METHOD("set_editor_hint", "enabled"), &Engine::set_editor_hint);
ClassDB::bind_method(D_METHOD("is_editor_hint"), &Engine::is_editor_hint);