public override bool GetNext(double[] probDist, int nOps)
{
// Create an array of operators that we are going to perform to generate neighbors
List <NOp> ops = new List <NOp>(schedule.GetOperations(probDist, nOps));
// Take a random operator
// if it may be performed
// - Apply it if the operator decreases the score
// - Apply the operator with chance decpending on the temperator if the score is increased
while (ops.Count != 0)
{
int i = StaticRandom.Next(0, ops.Count);
NOp op = ops[i];
ops.RemoveAt(i);
if (op.Evaluate())
{
double delta = op.TotalDelta;
if (delta < 0)
{
op.Apply();
return(true);
}
else
{
double p = Prob(delta, c);
double r = StaticRandom.NextDouble();
if (p > r)
{
op.Apply();
return(true);
}
}
}
c *= a; // Update temperature
}
return(false);
}
