public void RemoveOrganism()
{
this.Organism = null;
}
public void AddOrganism(Organism organism)
{
this.Organism = organism;
}
public Habitat(Environment environment, Organism organism)
{
this.Environment = environment;
this.Organism = organism;
}
public void AddOrganism(Organism organism, Coordinates location)
{
var habitat = this.Habitats[location.X, location.Y];
habitat.AddOrganism(organism);
this.OrganismHabitats.Add(organism, habitat);
}
private void MoveOrganism(Organism organism, Habitat destination)
{
var source = this.OrganismHabitats[organism];
// the organism cannot move if it is dead
if (!organism.IsAlive)
{
throw new InvalidOperationException(
string.Format("Cannot move organism {0} to {1} because it is dead",
organism, destination));
}
// the organism can only move to the destination if it is not obstructed
if (destination.IsObstructed())
{
throw new InvalidOperationException(
string.Format("Cannot move organism {0} to {1} because the destination is obstructed",
organism, destination));
}
// the organism can only move to the destination if it does not already contain an organism
if (destination.ContainsOrganism())
{
throw new InvalidOperationException(
string.Format("Cannot move organism {0} to {1} because the destination is occupied by {2}",
organism, destination, destination.Organism));
}
source.RemoveOrganism();
destination.AddOrganism(organism);
this.OrganismHabitats[organism] = destination;
}
public void RemoveOrganism(Organism organism)
{
var habitat = this.OrganismHabitats[organism];
habitat.RemoveOrganism();
this.OrganismHabitats.Remove(organism);
}