/// <summary>
/// The creature can mate with another creature if it is of the same species
///
/// The child gets energy from both parents. This is ReproductionCosts of the Species.
/// Both parents loose the ReproductionCosts amount of energy.
/// </summary>
private void Mate()
{
var creature = _context.GetCreatures(Species, XPos, YPos, this).FirstOrDefault();
if (creature == null)
{
return;
}
// Transfer energy to the child
var energy = Species.ReproductionCosts * 2;
Energy -= Species.ReproductionCosts;
creature.Energy -= Species.ReproductionCosts;
// Give the child strength. Average of both parents ±10%
var strength = GetChildValue(Strength, creature.Strength);
var c = new Creature(XPos, YPos, _context, energy, strength, Species, GetRandomDirection());
_context.AddNewCreature(c);
}