-// contains global cash for integer index of the color -> RGB of this color
-static std::map<int, std::vector<int> > myColorMap;
-
-void appendValues(std::vector<int>& theRGB, const int theRed, const int theGreen, const int theBlue)
-{
- theRGB.push_back(theRed);
- theRGB.push_back(theGreen);
- theRGB.push_back(theBlue);
-}
-
-bool containsValues(std::map<int, std::vector<int> >& theColorMap, std::vector<int>& theValues)
-{
- std::map<int, std::vector<int> >::const_iterator anIt = theColorMap.begin(),
- aLast = theColorMap.end();
- bool isFound = false;
- for (; anIt != aLast && !isFound; anIt++) {
- std::vector<int> aValues = anIt->second;
- isFound = aValues[0] == theValues[0] &&
- aValues[1] == theValues[1] &&
- aValues[2] == theValues[2];
- }
- return isFound;
-}
-
-std::vector<int> HSVtoRGB(int theH, int theS, int theV)
-{
- std::vector<int> aRGB;
- if (theH < 0 || theH > 360 ||
- theS < 0 || theS > 100 ||
- theV < 0 || theV > 100)
- return aRGB;
-
- int aHi = (int)theH/60;
-
- double aV = theV;
- double aVmin = (100 - theS)*theV/100;
-
- double anA = (theV - aVmin)* (theH % 60) / 60;
-
- double aVinc = aVmin + anA;
- double aVdec = theV - anA;
-
- double aPercentToValue = 255./100;
- int aV_int = (int)(aV*aPercentToValue);
- int aVinc_int = (int)(aVinc*aPercentToValue);
- int aVmin_int = (int)(aVmin*aPercentToValue);
- int aVdec_int = (int)(aVdec*aPercentToValue);
-
- switch(aHi) {
- case 0: appendValues(aRGB, aV_int, aVinc_int, aVmin_int); break;
- case 1: appendValues(aRGB, aVdec_int, aV_int, aVmin_int); break;
- case 2: appendValues(aRGB, aVmin_int, aV_int, aVinc_int); break;
- case 3: appendValues(aRGB, aVmin_int, aVdec_int, aV_int); break;
- case 4: appendValues(aRGB, aVinc_int, aVmin_int, aV_int); break;
- case 5: appendValues(aRGB, aV_int, aVmin_int, aVdec_int); break;
- default: break;
- }
- return aRGB;
-}
-
-
-void fillColorMap()
-{
- if (!myColorMap.empty())
- return;
-
- int i = 0;
- for (int s = 100; s > 0; s = s - 50)
- {
- for (int v = 100; v >= 40; v = v - 20)
- {
- for (int h = 0; h < 359 ; h = h + 60)
- {
- std::vector<int> aColor = HSVtoRGB(h, s, v);
- if (containsValues(myColorMap, aColor))
- continue;
- myColorMap[i] = aColor;
- i++;
- }
- }
- }
-}
-
-void findRandomColor(std::vector<int>& theValues)
-{
- theValues.clear();
- if (myColorMap.empty()) {
- fillColorMap();
- }
-
- size_t aSize = myColorMap.size();
- int anIndex = rand() % aSize;
- if (myColorMap.find(anIndex) != myColorMap.end()) {
- theValues = myColorMap.at(anIndex);
- }
-}