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#ifndef RENDER_HPP_
#define RENDER_HPP_
#include <vector>
#include <GL/glew.h>
#include <SDL2/SDL_opengl.h>
#include <shader_utils.hpp>
#include <vector2.hpp>
/**
* @class Shader
* @brief Handles a texture shader, allowing it's use in the program.
*/
class Shader {
public:
GLuint shader;
GLint coord;
GLint tex;
std::vector<GLint> uniform;
void create(const char *vert, const char *frag) {
shader = create_program(vert, frag);
coord = get_attrib(shader, "coord2d");
tex = get_attrib(shader, "tex_coord");
}
inline void addUniform(const char *name) {
uniform.push_back(get_uniform(shader, name));
}
inline void use(void) {
glUseProgram(shader);
}
inline void unuse(void) {
glUseProgram(0);
}
inline void enable(void) {
glEnableVertexAttribArray(coord);
glEnableVertexAttribArray(tex);
}
inline void disable(void) {
glDisableVertexAttribArray(coord);
glDisableVertexAttribArray(tex);
}
~Shader(void) {
uniform.clear();
}
};
typedef enum {
WU_texture = 0,
WU_ortho,
WU_tex_color,
WU_transform,
WU_ambient,
WU_light_impact,
WU_light,
WU_light_color,
WU_light_size
} WorldUniform;
namespace Render {
namespace ZRange {
constexpr float World = 9.9f;
constexpr float RenderSys = 5.0f;
constexpr float Ground = -4.5f;
constexpr float Attack = -5.0f;
constexpr float Particle = -8.0f;
constexpr float Important = -8.5f;
constexpr float Inventory = -9.0f;
constexpr float Dialog = -9.3f;
constexpr float Quest = -9.5f;
constexpr float Fade = -9.7f;
constexpr float Menu = -9.8f;
constexpr float Mouse = -9.89f;
constexpr float Debug = -9.9f;
}
extern Shader worldShader;
extern Shader textShader;
void useShader(Shader *s);
void drawRect(vec2 ll, vec2 ur, float z);
void init(void);
void render(const int& fps);
}
#endif // RENDER_HPP_
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