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#ifndef SPRITE_BATCH_HPP
#define SPRITE_BATCH_HPP
#include "vertex.hpp"
#include <GL/glew.h>
#include <glm/glm.hpp>
#include <vector>
namespace yage
{
struct Glyph
{
GLuint texture;
float depth;
Vertex top_left;
Vertex top_right;
Vertex bottom_right;
Vertex bottom_left;
};
class SpriteBatch
{
public: // member variables
private:
GLuint vbo_=0;
GLuint vao_=0;
std::vector<Glyph> glyphs_;
std::vector<Glyph *> glyph_ptrs_;
public: // member functions
SpriteBatch();
~SpriteBatch();
void begin();
void end();
void draw(const glm::vec4 &destination_rect, const glm::vec4 &uv_rect, GLuint texture, const Color &color, float depth);
void renderBatch();
private:
void createVertexArray();
void sortGlyphs();
};
} // yage
#endif
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