palette.h

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/*
 *  Copyright (C) 2000-2001  The Exult Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef PALETTE_H
#define PALETTE_H

class Image_window8;

/*
 *  Palette #'s in 'palettes.flx':
 */
const int PALETTE_DAY = 0;
const int PALETTE_DUSK = 1;
const int PALETTE_DAWN = 1;   // Think this is it.
const int PALETTE_NIGHT = 2;
const int PALETTE_INVISIBLE = 3;  // When Avatar is invisible.
          // 4 looks just like #1.
const int PALETTE_HAZE = 5;
          // 6 looks a little brighter than #2.
          // 7 is somewhat warmer.  Torch?
const int PALETTE_RED = 8;    // Used when hit in combat.
          // 9 has lots of black.
const int PALETTE_LIGHTNING = 10;



class Palette
  {
    Image_window8 *win;
    unsigned char pal1[768];
    unsigned char pal2[768];
    int brightness;
    int max_val;
    int palette;    // Palette #.
    bool faded_out;   // true if faded palette to black.
    bool fades_enabled;

public:
    Palette();
    ~Palette();
          // Fade palette in/out.
    void fade(int cycles, int inout, int pal_num = -1);
    bool is_faded_out()
      { return faded_out; }
    void flash_red(); // Flash red for a moment.
          // Set desired palette.
    void set(int pal_num, int new_brightness = -1, 
              bool repaint=true);
    int get_brightness()  // Percentage:  100 = normal.
      { return brightness; }
          //   the user.
    void set_fades_enabled(bool f) { fades_enabled = f; }
    bool get_fades_enabled() const { return fades_enabled; }

    void apply(bool repaint=true);
    void load(const char *fname, int index,
        const char *xfname = 0, int xindex = -1);
    void set_brightness(int bright);
    void set_max_val(int max);
    int get_max_val();
    void fade_in(int cycles);
    void fade_out(int cycles);
    int find_color(int r, int g, int b);
    void create_trans_table(unsigned char br, unsigned bg,
      unsigned bb, int alpha, unsigned char *table);
    void show();

    void set_color(int nr, int r, int g, int b);
    unsigned char get_red(int nr) { return pal1[3*nr]; }
    unsigned char get_green(int nr) { return pal1[3*nr + 1]; }
    unsigned char get_blue(int nr) { return pal1[3*nr + 2]; }
    void set_palette (unsigned char palnew[768]);
  };
  

#endif

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