Gamedev Framework (gf)  0.9.0
A C++14 framework for 2D games
EntityContainer.h
1 /*
2  * Gamedev Framework (gf)
3  * Copyright (C) 2016-2018 Julien Bernard
4  *
5  * This software is provided 'as-is', without any express or implied
6  * warranty. In no event will the authors be held liable for any damages
7  * arising from the use of this software.
8  *
9  * Permission is granted to anyone to use this software for any purpose,
10  * including commercial applications, and to alter it and redistribute it
11  * freely, subject to the following restrictions:
12  *
13  * 1. The origin of this software must not be misrepresented; you must not
14  * claim that you wrote the original software. If you use this software
15  * in a product, an acknowledgment in the product documentation would be
16  * appreciated but is not required.
17  * 2. Altered source versions must be plainly marked as such, and must not be
18  * misrepresented as being the original software.
19  * 3. This notice may not be removed or altered from any source distribution.
20  */
21 #ifndef GF_ENTITY_CONTAINER_H
22 #define GF_ENTITY_CONTAINER_H
23 
24 #include <type_traits>
25 #include <vector>
26 
27 #include "Portability.h"
28 #include "RenderStates.h"
29 #include "Time.h"
30 
31 namespace gf {
32 #ifndef DOXYGEN_SHOULD_SKIP_THIS
33 inline namespace v1 {
34 #endif
35 
36  class Entity;
37  class RenderTarget;
38 
59  class GF_API EntityContainer {
60  public:
61 
71  void update(Time time);
72 
83  void render(RenderTarget& target, const RenderStates& states = RenderStates());
84 
99  void addEntity(Entity& entity);
100 
108  Entity *removeEntity(Entity *entity);
109 
134  template<typename E>
135  E *removeTypedEntity(E *entity) {
136  static_assert(std::is_base_of<Entity, E>::value, "E must be an Entity");
137  return static_cast<E*>(removeEntity(entity));
138  }
139 
142  private:
143  std::vector<Entity *> m_entities;
144  };
145 
146 #ifndef DOXYGEN_SHOULD_SKIP_THIS
147 }
148 #endif
149 }
150 
151 #endif // GF_ENTITY_CONTAINER_H
Base class for all render targets (window, texture, ...)
Definition: RenderTarget.h:66
Define the states used for drawing to a RenderTarget.
Definition: RenderStates.h:82
Represents a time value.
Definition: Time.h:74
A game entity.
Definition: Entity.h:53
The namespace for gf classes.
Definition: Action.h:34
E * removeTypedEntity(E *entity)
Remove a typed entity from the collection.
Definition: EntityContainer.h:135
A collection of entities.
Definition: EntityContainer.h:59