#ifndef SHADERS_H
#define SHADERS_H

#include <GL/glew.h>

#include "../math/matrix4x4.h"

typedef struct
{
    GLuint ID;

    GLint position;
    GLint color;
    GLint uv;
    GLint normal;

    GLint totalTransform;
    GLint modelToWorld;
    GLint lightPosition;
    GLint ambientLight;
    GLint lightColor;
    GLint lightAttenuation;
    GLint World_eyePosition;
    GLint Texture;

    GLint Texture_Background;
    GLint Texture_R;
    GLint Texture_G;
    GLint Texture_B;
    GLint Texture_BlendMap;

} Shader_Layout;

extern GLuint Shader_CompileShaders(const char* vertexShader, const char* fragmentShader);
extern GLint Shader_GetUniformLocation( GLuint programID, const char* uniformName );
extern GLint Shader_GetAttribLocation ( GLuint programID, const char* attributeName );
extern void Shader_Destroy(GLuint programID);

extern void Shader_SetUniformMat4( GLuint programID, const char* name, const float *matrix );
extern void Shader_SetUniformFloat( GLuint programID, const char* name, const float val );
extern void Shader_SetUniformVec2( GLuint programID, const char* name, const float vec[2] );
extern void Shader_SetUniformVec3( GLuint programID, const char* name, const float vec[3] );
extern void Shader_SetUniformVec4( GLuint programID, const char* name, const float vec[4] );
extern void Shader_SetUniformInt( GLuint programID, const char* name, const int val );

#endif // SHADERS_H