public void AddBoidToFlock()
{
population++;
Boid boid = new Boid(pd);
flock.Add(boid);
if (population == 1) Demo.SelectedVehicle = boid;
}
public void RemoveBoidFromFlock()
{
if (population > 0)
{
// save a pointer to the last boid, then remove it from the flock
population--;
Boid boid = flock[population];
flock.RemoveAt(population);
// if it is Demo's selected vehicle, unselect it
if (boid == Demo.SelectedVehicle)
{
Demo.SelectedVehicle = null;
}
// delete the Boid
boid = null;
}
}
