1 /*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #ifndef SCENE_SRC_CORE_ECS_LISTENER_H
17 #define SCENE_SRC_CORE_ECS_LISTENER_H
18
19 #include <scene/base/types.h>
20 #include <scene/ext/intf_ecs_context.h>
21 #include <scene/ext/intf_ecs_event_listener.h>
22
23 #include <base/containers/unordered_map.h>
24
SCENE_BEGIN_NAMESPACE()25 SCENE_BEGIN_NAMESPACE()
26
27 class EcsListener : CORE_NS::IEcs::EntityListener, CORE_NS::IEcs::ComponentListener {
28 public:
29 bool Initialize(IEcsContext& context);
30 void Uninitialize();
31
32 void RegisterEcsObject(const IEcsObject::Ptr&);
33 void DeregisterEcsObject(const IEcsObject::ConstPtr&);
34 void DeregisterEcsObject(CORE_NS::Entity);
35
36 IEcsObject::Ptr FindEcsObject(CORE_NS::Entity ent) const;
37
38 private:
39 void OnEntityEvent(
40 CORE_NS::IEcs::EntityListener::EventType type, BASE_NS::array_view<const CORE_NS::Entity> entities) override;
41 void OnComponentEvent(CORE_NS::IEcs::ComponentListener::EventType type, const CORE_NS::IComponentManager& manager,
42 BASE_NS::array_view<const CORE_NS::Entity> entities) override;
43
44 private:
45 IEcsContext* ecs_ {};
46 BASE_NS::unordered_map<CORE_NS::Entity, IEcsObject::WeakPtr> objects_;
47 };
48
49 SCENE_END_NAMESPACE()
50
51 #endif