#ifndef GRAPHICS_H
#define GRAPHICS_H

#include <algorithm>
#include <map>
#include <string>
#include <vector>

#include "GraphicsResources.h"
#include "GraphicsUtil.h"
#include "Maths.h"
#include "Screen.h"
#include "Textbox.h"
#include "TowerBG.h"

class Graphics
{
public:
	void init();
	void destroy();

	void create_buffers(const SDL_PixelFormat* fmt);
	void destroy_buffers();

	GraphicsResources grphx;

	int bfontlen(uint32_t ch);
	int font_idx(uint32_t ch);

	void Makebfont();

	void drawhuetile(int x, int y, int t);
	void huetilesetcol(int t);
	Uint32 bigchunkygetcol(int t);

	void drawgravityline(int t);

	void MakeTileArray();

	void MakeSpriteArray();

	void maketelearray();

	void drawcoloredtile(int x, int y, int t, int r, int g, int b);

	void drawmenu(int cr, int cg, int cb, bool levelmenu = false);

	void processfade();

	void drawfade();

	void setwarprect(int a, int b, int c, int d);

	void createtextbox(std::string t, int xp, int yp, int r= 255, int g= 255, int b = 255);

	void textboxcenterx();

	int textboxwidth();

	void textboxmoveto(int xo);

	void textboxcentery();

	void textboxadjust();

	void addline(std::string t);

	void textboxtimer(int t);

	void textboxremove();

	void textboxremovefast();

	void textboxactive();

	void drawtextbox(int x, int y, int w, int h, int r, int g, int b);

	void drawpixeltextbox(int x, int y, int w, int h, int w2, int h2, int r, int g, int b, int xo, int yo);
	void drawcustompixeltextbox(int x, int y, int w, int h, int w2, int h2, int r, int g, int b, int xo, int yo);

	void drawcrewman(int x, int y, int t, bool act, bool noshift =false);

	int crewcolour(const int t);

	void cutscenebars();
	void cutscenebarstimer();

	void drawpartimage(int t, int xp, int yp, int wp, int hp);

	void drawimage(int t, int xp, int yp, bool cent=false);

	void drawimagecol(int t, int xp, int yp, int r, int g, int b, bool cent= false);

	void updatetextboxes();
	void drawgui();

	void drawsprite(int x, int y, int t, int r, int g, int b);
	void drawsprite(int x, int y, int t, Uint32 c);

	void printcrewname(int x, int y, int t);

	void printcrewnamestatus(int x, int y, int t);

	void printcrewnamedark(int x, int y, int t);

	void map_tab(int opt, const std::string& text, bool selected = false);

	void map_option(int opt, int num_opts, const std::string& text, bool selected = false);

	void Print(int _x, int _y, std::string _s, int r, int g, int b, bool cen = false);

	void PrintAlpha(int _x, int _y, std::string _s, int r, int g, int b, int a, bool cen = false);

	void PrintOffAlpha(int _x, int _y, std::string _s, int r, int g, int b, int a, bool cen = false);

	void bprint(int x, int y, std::string t, int r, int g, int b, bool cen = false);

	void bprintalpha(int x, int y, std::string t, int r, int g, int b, int a, bool cen = false);

	int len(std::string t);
	void bigprint( int _x, int _y, std::string _s, int r, int g, int b, bool cen = false, int sc = 2 );
	void drawspritesetcol(int x, int y, int t, int c);


	void flashlight();
	void screenshake();
	void updatescreenshake();

	int screenshake_x;
	int screenshake_y;

	void render();
	void renderwithscreeneffects();

	bool Hitest(SDL_Surface* surface1, point p1, SDL_Surface* surface2, point p2);

	void drawentities();

	void drawentity(const int i, const int yoff);

	void drawtrophytext();

	void bigrprint(int x, int y, std::string& t, int r, int g, int b, bool cen = false, float sc = 2);


	void drawtele(int x, int y, int t, Uint32 c);

	Uint32 getRGBA(Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	Uint32 getRGB(Uint8 r, Uint8 g, Uint8 b);

	Uint32 getBGR(Uint8 r, Uint8 g, Uint8 b);

	Uint32 getRGB(Uint32 _col);

	Uint32 RGBflip(Uint8  r, Uint8  g, Uint8  b);


	Uint32 RGBf(int r, int g, int b);

	void setcolreal(Uint32 t);

	void drawbackground(int t);
	void updatebackground(int t);
	void drawtile3( int x, int y, int t, int off, int height_subtract = 0 );
	void drawtile2( int x, int y, int t );
	void drawtile( int x, int y, int t );
	void drawtowertile( int x, int y, int t );
	void drawtowertile3( int x, int y, int t, TowerBG& bg_obj );

	void drawmap();

	void drawforetile(int x, int y, int t);

	void drawforetile2(int x, int y, int t);

	void drawforetile3(int x, int y, int t, int off);

	void drawrect(int x, int y, int w, int h, int r, int g, int b);

	void drawtowermap();

	void drawtowerspikes();

	bool onscreen(int t);

	void reloadresources();
	std::string assetdir;


	void menuoffrender();

	void drawtowerbackground(const TowerBG& bg_obj);
	void updatetowerbackground(TowerBG& bg_obj);

	void setcol(int t);
	void drawfinalmap();

	colourTransform ct;

	int rcol;



	int m;

	std::vector <SDL_Surface*> images;

	std::vector <SDL_Surface*> tele;
	std::vector <SDL_Surface*> tiles;
	std::vector <SDL_Surface*> tiles2;
	std::vector <SDL_Surface*> tiles3;
	std::vector <SDL_Surface*> entcolours;
	std::vector <SDL_Surface*> sprites;
	std::vector <SDL_Surface*> flipsprites;
	std::vector <SDL_Surface*> bfont;
	std::vector <SDL_Surface*> flipbfont;

	bool flipmode;
	bool setflipmode;
	bool notextoutline;
	//buffer objects. //TODO refactor buffer objects
	SDL_Surface* backBuffer;
	Screen* screenbuffer;
	SDL_Surface* menubuffer;
	SDL_Surface* foregroundBuffer;
	SDL_Surface* tempBuffer;
	SDL_Surface* warpbuffer;
	SDL_Surface* warpbuffer_lerp;

	TowerBG towerbg;
	TowerBG titlebg;

	SDL_Rect bfont_rect;
	SDL_Rect tiles_rect;
	SDL_Rect sprites_rect;
	SDL_Rect images_rect;
	SDL_Rect bg_rect;
	SDL_Rect line_rect;
	SDL_Rect tele_rect;
	SDL_Rect towerbuffer_rect;

	SDL_Rect foot_rect;
	SDL_Rect prect;
	SDL_Rect footerrect;
	SDL_Surface* footerbuffer;

	int linestate, linedelay;
	int backoffset;
	bool backgrounddrawn, foregrounddrawn;

	int menuoffset;
	int oldmenuoffset;
	bool resumegamemode;

	SDL_Rect warprect;

	int crewframe;
	int crewframedelay;

	int fademode;
	int fadeamount;
	int oldfadeamount;
	int fadebars[15];

	bool trinketcolset;
	int trinketr, trinketg, trinketb;

	std::vector <textboxclass> textbox;

	bool showcutscenebars;
	int cutscenebarspos;
	int oldcutscenebarspos;

	static const int numstars = 50;
	SDL_Rect stars[numstars];
	int starsspeed[numstars];

	static const int numbackboxes = 18;
	int spcol, spcoldel;
	SDL_Rect backboxes[numbackboxes];
	int backboxvx[numbackboxes];
	int backboxvy[numbackboxes];
	float backboxint[numbackboxes];

	int warpskip, warpfcol, warpbcol;

	bool translucentroomname;

	bool showmousecursor;

	std::map<int, int> font_positions;

	SDL_Surface* ghostbuffer;

	float inline lerp(const float v0, const float v1)
	{
		return v0 + alpha * (v1 - v0);
	}
	float alpha;

	Uint32 col_crewred;
	Uint32 col_crewyellow;
	Uint32 col_crewgreen;
	Uint32 col_crewcyan;
	Uint32 col_crewblue;
	Uint32 col_crewpurple; //actually pink
	Uint32 col_crewinactive;
	Uint32 col_clock;
	Uint32 col_trinket;
	int col_tr;
	int col_tg;
	int col_tb;
	void updatetitlecolours();

	bool kludgeswnlinewidth;

	Uint32 crewcolourreal(int t);
};

#ifndef GRAPHICS_DEFINITION
extern Graphics graphics;
#endif

#endif /* GRAPHICS_H */