gfx.hpp as of 2023-11-16

#ifndef _GAME_GFX_HPP
#define _GAME_GFX_HPP

#include <utils/font.hpp>




//background and text colors (16 each) should be just different enough
 //to differentiate them if they the palette indexes are the same
extern SDL_Color _gfx_palette_default[32];
typedef enum gfx_colors {
  clr_black   = 0x0,
  clr_dgray   = 0x1,
  clr_lgray   = 0x2,
  clr_white   = 0x3,
  clr_red     = 0x4,
  clr_green   = 0x5,
  clr_blue    = 0x6,
  clr_cyan    = 0x7,
  clr_magenta = 0x8,
  clr_yellow  = 0x9,
  clr_brown   = 0xA,
  clr_moss    = 0xB,
  clr_lblue   = 0xC,
  clr_teal    = 0xD,
  clr_purple  = 0xE,
  clr_orange  = 0xF,
} gfx_colors;


union gfx_color {
  Uint8  both;
  struct {
    Uint8 txt : 4;
    Uint8  bg : 4;
  };
};


union gfx_char {
  Uint16       value;

  char           chr;
  struct {
    Uint8       _chr : 7;
    Uint8        bgt : 1; //'is background transparent?'
    gfx_color  color;
  };
};


class gfx_class {
  SDL_bool _valid = SDL_FALSE;

  SDL_Renderer* _renderer;
  const SDL_Color* _palette;

  font8x8* _colors[256];


public:
  gfx_char chars[45][80]; //for 80x45 chars


  SDL_bool isValid(){ return _valid; }

  gfx_class(SDL_Renderer* renderer, const SDL_Color* palette = _gfx_palette_default);

  ~gfx_class(){
    for(int i=0; i<256; ++i) delete _colors[i];
    _valid = SDL_FALSE;
  }


  //void setScale(SDL_Point scale);

  void present();
  void clear(gfx_colors fillColor = clr_black);

  void set(gfx_char newChar, Uint32 column, Uint32 row);
  void box(gfx_color boxColor, SDL_Rect dimensions);
  void print(std::string& txt, Uint32 column, Uint32 row,
             gfx_color color = { .both = 3 },
             SDL_bool bg_transparent = SDL_FALSE);
  //void health();
};




#endif /* _GAME_GFX_HPP */