Repetition - 2017

Repeats a section of code until a set of parameters are met (or one parameter).

For Loop

the for loop will run a given number of times (often called definite):

From Warren; Line 16:

 
      for (int r = 0; r < RabbitCount; r++)
      {
        Rabbits[r] = new Rabbit(Variability);
      }

The for loop creates a new entry in the Rabbits array, using the Rabbit class, until the variable r reaches the RabbitCount variable.

From Simulation; Line 88:

for (int x = 0; x < LandscapeSize; x++)
      {
        for (int y = 0; y < LandscapeSize; y++)
        {
          if (Landscape[x, y].Warren != null)
          {
            if (ShowDetail)
            {
              Console.WriteLine("Warren at (" + x + "," + y + "):");
              Console.Write("  Period Start: ");
              Landscape[x, y].Warren.Inspect();
            }
            if (FoxCount > 0)
            {
              FoxesEatRabbitsInWarren(x, y);
            }
            if (Landscape[x, y].Warren.NeedToCreateNewWarren())
            {
              CreateNewWarren();
            }
            Landscape[x, y].Warren.AdvanceGeneration(ShowDetail);
            if (ShowDetail)
            {
              Console.Write("  Period End: ");
              Landscape[x, y].Warren.Inspect();
              Console.ReadKey();
            }
            if (Landscape[x, y].Warren.WarrenHasDiedOut())
            {
              Landscape[x, y].Warren = null;
              WarrenCount--;
            }
          }
        }
      }

This loop creates a set of y values for every x value to create a 'square' of values in a multi-dimensional array.

While Loop

A while loop will check the condition first, so may never run but also you don't know when it will stop.

private void CompressRabbitList(int DeathCount)
    {
      if (DeathCount > 0)
      {
        int ShiftTo = 0;
        int ShiftFrom = 0;
        while (ShiftTo < RabbitCount - DeathCount)
        {
          while (Rabbits[ShiftFrom] == null)
          {
            ShiftFrom++;
          }
          if (ShiftTo != ShiftFrom)
          {
            Rabbits[ShiftTo] = Rabbits[ShiftFrom];
          }
          ShiftTo++;
          ShiftFrom++;
        }
        RabbitCount = RabbitCount - DeathCount;
      }
    }

Do While Loop

This will always run once, and then check the condition to see if it should continue

do
{
     Mate = Rnd.Next(0, RabbitCount);
} 
while ((Mate == r) || (Rabbits[Mate].IsFemale()));