public IList<MatchOpponents> GenerateMatches()
{
if (this.size <= 1)
{
return null;
}
else if (this.size == 2)
{
var firstMatch = new MatchOpponents(0, 1, this.round);
this.matches.Add(firstMatch);
var secondMatch = new MatchOpponents(1, 0, this.round);
this.matches.Add(secondMatch);
return this.matches;
}
int row = 0;
if (this.hasEvenPlayers == true)
{
row = 1;
}
while (row < this.size)
{
this.tempMatches = new bool[this.size, this.size];
this.tempOpponets = new Stack<MatchOpponents>();
this.occupiedRowsAndCols = new bool[this.size];
this.hasPlayerAgainstAverage = false;
this.hasAddedFixtureMatches = false;
var match = new MatchOpponents(row, 0, this.round);
this.tempOpponets.Push(match);
this.occupiedRowsAndCols[row] = true;
this.occupiedRowsAndCols[0] = true;
this.board[row, 0] = true;
if (this.hasEvenPlayers == false && row == 0)
{
this.hasPlayerAgainstAverage = true;
}
this.FindPossible(0);
row++;
}
return this.matches;
}
private void FindPossible(int row)
{
if (this.hasAddedFixtureMatches || this.hasFoundAllCombinations)
{
return;
}
if (row == this.size)
{
this.CheckAllComminations();
return;
}
int maxCol = row;
if (this.hasEvenPlayers == true)
{
maxCol -= 1;
}
int col = 0;
while (col <= maxCol)
{
if (this.tempMatches[row, col] == false && this.IsMatchAvailable(row, col))
{
if (row == col)
{
this.hasPlayerAgainstAverage = true;
}
var match = new MatchOpponents(row, col, this.round);
this.tempOpponets.Push(match);
this.occupiedRowsAndCols[row] = true;
this.occupiedRowsAndCols[col] = true;
this.tempMatches[row, col] = true;
if (this.tempOpponets.Count == this.tempOpponentsMaxCount)
{
this.AddTempOpponetsToFinalList();
this.hasAddedFixtureMatches = true;
}
this.FindPossible(row + 1);
if (this.hasAddedFixtureMatches || this.hasFoundAllCombinations)
{
return;
}
if (row == col)
{
this.hasPlayerAgainstAverage = false;
}
this.tempOpponets.Pop();
this.occupiedRowsAndCols[row] = false;
this.occupiedRowsAndCols[col] = false;
this.tempMatches[row, col] = false;
}
col++;
}
this.FindPossible(row + 1);
}