#pragma once

#include "bx/math.h"

struct Vec2
{
    float x = 0.0f;
    float y = 0.0f;
};

struct Vec3
{
    float x = 0.0f;
    float y = 0.0f;
    float z = 0.0f;
};

struct Vec4
{
    float x = 0.0f;
    float y = 0.0f;
    float z = 0.0f;
    float w = 0.0f;
};

struct Mat3
{
    // clang-format off
    float M[9]{
        1.0f, 0.0f, 0.0f,
        0.0f, 1.0f, 0.0f,
        0.0f, 0.0f, 1.0f,
    };
    // clang-format on
};

struct Mat4
{
    // clang-format off
    float M[16]{
        1.0, 0.0, 0.0, 0.0,
        0.0, 1.0, 0.0, 0.0,
        0.0, 0.0, 1.0, 0.0,
        0.0, 0.0, 0.0, 1.0,
    };
    // clang-format on
};

struct Transform
{
    Mat4 M;
    Mat4 MI;
    bx::Vec3 Position{0.0f, 0.0f, 0.0f};
    Mat4 Rotation;
    bx::Vec3 Scale{1.0f, 1.0f, 1.0f};

    static void CreateTransform(float* out, bx::Vec3 pos, bx::Quaternion rot, bx::Vec3 scale);
    void Translate(bx::Vec3 offset);
    void TranslateLocal(bx::Vec3 offset);
    void Rotate(bx::Vec3 rotation);
    void RotateLocal(bx::Vec3 rotation);
    bx::Vec3 Right() const;
    bx::Vec3 Up() const;
    bx::Vec3 Forward() const;
    const float* GetPtr();
    void UpdateMatrix();
};

struct SharedData;

namespace Game
{
    struct GameInstance;

    SharedData& GetShared();
    void SetShared(SharedData& instance);
    GameInstance& GetInstance();
    void SetInstance(GameInstance& instance);
    void* AllocateScratch(size_t byteCount, size_t align = 16);
} // namespace Game