#ifndef GEOMETRY_H

#include "color.h"
#include "engine.h"
#include "point.h"
#include <cstdint>
#include <vector>


// STRUCTURES
struct Material
{
    bool smooth;
    ColorF32 kAmbient;
    ColorF32 kDiffuse;
};

struct Texture
{
    ColorU32 **texels;
    unsigned int width;
    unsigned int height;
};

struct TextureCoord
{
    float u;
    float v;
};

struct Face
{
    unsigned int vertIndex[3];
    unsigned int textureIndex[3];
    Vector normal;
    ColorF32 color;
};

struct Vertex
{
    Point point;
    Vector normal;
    ColorF32 color;
};

struct Mesh_LocalData
{
    std::vector<Vertex> verts;
    std::vector<Face> faces;
    std::vector<TextureCoord> uvs;
};

struct Mesh_TransformedData
{
    std::vector<Vertex> verts;
    std::vector<Face> faces;
};

struct Mesh
{
    inline Mesh(void)
    {
        position.x = 0.0f;
        position.y = 0.0f;
        position.z = 0.0f;

        rotation[0] = 0.0f;
        rotation[1] = 0.0f;
        rotation[2] = 0.0f;

        scale = 1.0f;
    }

    Point position;
    float rotation[3];
    float scale;

    Material material;

    Mesh_LocalData local;
    Mesh_TransformedData transformed;
};


// PUBLIC FUNCTIONS
void CullBackfaces(
        Mesh_LocalData &local, Mesh_TransformedData &transformed,
        Point &camPosition);

void RenderMesh(
        Engine_Buffer &buffer, Mesh_TransformedData &mesh,
        Texture &texture, std::vector<TextureCoord> &uvs);


#define GEOMETRY_H
#endif