(C++) Flood::Matrix

 

Flood::Matrix is the Flood version of a matrix.

 

 

 

 

 

Flood::Matrix example

 

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int main() {   const int n_rows = 3;   const int n_cols = 4;   //Flood::Matrix is y-x ordered   Flood::Matrix<int> m(n_rows,n_cols,0.0);   const int x1 = 0;   const int y1 = 0;   m[y1][x1] = 1;   const int x2 = 1;   const int y2 = 2;   m[y2][x2] = 2;   const int x3 = 3;   const int y3 = 1;   m[y3][x3] = 3;   std::cout << m; }

 

Screen output:

 

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1 0 0 0 0 0 0 3 0 2 0 0

 

 

 

 

 

Flood::Matrix code snippets

 

 

 

 

 

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//From http://www.richelbilderbeek.nl/CppFloodMatrix.htm void mutate(Flood::Matrix<double>& m, const double mut) {   const int maxy = m.get_rows_number();   const int maxx = m.get_columns_number();   for (int y=0; y!=maxy; ++y)   {     for (int x=0; x!=maxx; ++x)     {       m[y][x] += (GetRandomUniform() * (2.0 * mut) - mut);     }   } }