#ifndef ENGINE_H__
#define ENGINE_H__

#include <algorithm>
#include <cmath>
#include "define.h"
#include "openglcontext.h"
#include "texture.h"
#include "transformation.h"
#include "shader.h"
#include "player.h"
#include "chunk.h"
#include "skybox.h"
#include "audio.h"
#include "textureatlas.h"
#include "blockinfo.h"
#include "array2d.h"
#include "world.h"
#include "bullet.h"
#include "connector.h"

class Engine : public OpenglContext {
public:
    Engine();
    virtual ~Engine();
    virtual void Init();
    virtual void DeInit();
    virtual void LoadResource();
    virtual void UnloadResource();
    virtual void Render(float elapsedTime);
    virtual void KeyPressEvent(unsigned char key);
    virtual void KeyReleaseEvent(unsigned char key);
    virtual void MouseMoveEvent(int x, int y);
    virtual void MousePressEvent(const MOUSE_BUTTON &button, int x, int y);
    virtual void MouseReleaseEvent(const MOUSE_BUTTON &button, int x, int y);

private:
    float GetScale() const;

    int GetFps(float elapsedTime) const;

    bool LoadTexture(Texture& texture, const std::string& filename, bool useMipmaps = true, bool stopOnError = true);

    void DisplayCrosshair();
    void DisplayCurrentItem();
    void DisplayHud();
    void DisplayInfo(float elapsedTime, BlockType bloc);
    void DrawHud(float elapsedTime, BlockType bloc);
    void PrintText(float x, float y, float scale, const std::string& t);

    Connector* m_conn = nullptr;
    Shader m_shader01;
    BlockInfo* m_blockinfo[BTYPE_LAST];
    TextureAtlas m_textureAtlas = TextureAtlas(BTYPE_LAST);

    World m_world = World();

    Texture m_textureSkybox;
    Texture m_textureFont;
    Texture m_textureCrosshair;
    Texture m_textureGun;

    Skybox m_skybox;
    Audio m_audio = Audio(AUDIO_PATH "start.wav");

    irrklang::ISound* m_powpow;
    irrklang::ISound* m_scream;

    Player m_player = Player(Vector3f(.5f, CHUNK_SIZE_Y + 1.8f, .5f));

    Bullet* m_bullets[MAX_BULLETS];

    float m_scale;

    int m_renderCount = 0;

    bool m_wireframe = false;
    bool m_isSkybox = true;
    bool m_block = false;
    bool m_flash = true;
    bool m_displayCrosshair = true;
    bool m_displayHud = true;
    bool m_displayInfo = false;
    
    bool m_keyW = false;
    bool m_keyA = false;
    bool m_keyS = false;
    bool m_keyD = false;
    bool m_keySpace = false;
    bool m_mouseL = false;
    bool m_mouseR = false;
    bool m_mouseC = false;
    bool m_mouseWU = false;
    bool m_mouseWD = false;
};

#endif // ENGINE_H__