Gamedev Framework (gf)  0.12.0
A C++14 framework for 2D games
SpriteBatch.h
1 /*
2  * Gamedev Framework (gf)
3  * Copyright (C) 2016-2019 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_SPRITE_BATCH_H
22 #define GF_SPRITE_BATCH_H
23 
24 #include <cstddef>
25 #include <array>
26 
27 #include "Portability.h"
28 #include "RenderStates.h"
29 #include "Vertex.h"
30 
31 namespace gf {
32 #ifndef DOXYGEN_SHOULD_SKIP_THIS
33 inline namespace v1 {
34 #endif
35 
36  class RenderTarget;
37  class Sprite;
38  class Texture;
39 
62  class GF_API SpriteBatch {
63  public:
69  SpriteBatch(RenderTarget& target);
70 
74  void begin();
75 
85  void draw(Sprite& sprite, const RenderStates& states = RenderStates());
86 
97  void draw(const Texture& texture, Vector2f position, const RenderStates& states = RenderStates());
98 
110  void draw(const Texture& texture, const RectF& textureRect, Vector2f position, const RenderStates& states = RenderStates());
111 
115  void end();
116 
117  private:
118  void renderBatch();
119 
120  private:
121  static constexpr std::size_t MaxSpriteCount = 1024;
122  static constexpr std::size_t VerticesPerSprite = 6;
123  static constexpr std::size_t MaxVertexCount = MaxSpriteCount * VerticesPerSprite;
124 
125  RenderTarget& m_target;
126  RenderStates m_currentRenderStates;
127  std::size_t m_count;
128  std::array<Vertex, MaxVertexCount> m_vertices;
129  };
130 
131 #ifndef DOXYGEN_SHOULD_SKIP_THIS
132 }
133 #endif
134 }
135 
136 #endif // GF_SPRITE_BATCH_H
A sprite batch.
Definition: SpriteBatch.h:62
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
A drawable representation of a texture, with its own transformations, color, etc. ...
Definition: Sprite.h:88
A texture for colored images.
Definition: Texture.h:339
The namespace for gf classes.
Definition: Action.h:35