src/GenColor.cpp

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/*
This file is part of Teapot Colony Wars.

Teapot Colony Wars 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.

Teapot Colony Wars 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 Teapot Colony Wars.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "GenColor.h"

#include "Constants.h"

GenColor* GenColor::_instance = NULL;
unsigned int GenColor::_nb_colors = 0;
float GenColor::_factor = 1.0;

GenColor::GenColor() {

}

GenColor::~GenColor() {
  destroy();
}

GenColor* GenColor::instance() {
  if(_instance == NULL) {
    _instance = new GenColor();
  }

  return _instance;
}

void GenColor::destroy() {
  if(_instance != NULL) {
    delete _instance;
    _instance = NULL;
    _nb_colors = 0;
    _factor = 1.0;
  }
}

GLubyte* GenColor::getNewColor() {
  GLubyte *colors;

  colors = new GLubyte[3];
  _nb_colors++;

  if(_nb_colors % 8 == 0) {
    _factor /= 2.0;
  }
  colors[0] = ((_nb_colors + 1) % 2 == 0 ?
    (GLubyte) (_factor * ((float) (COLOR_MAX - COLOR_LIMIT))) :
    (GLubyte) COLOR_MIN);
  colors[1] = (((int) (_nb_colors / 2) + 1) % 2 == 0 ?
    (GLubyte) (_factor * ((float) (COLOR_MAX - COLOR_LIMIT))) :
    (GLubyte) COLOR_MIN);
  colors[2] = (((int) (_nb_colors / 4) + 1) % 2 == 0 ?
    (GLubyte) (_factor * ((float) (COLOR_MAX - COLOR_LIMIT))) :
    (GLubyte) COLOR_MIN);

  return colors;
}

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