private int amount; //The amount of entitys in this population.
/// <summary>
/// Constuctor. Creates the entitys in the population.
/// </summary>
/// <param name="world">The world the population lives in.</param>
/// <param name="amount">The amount of entitys in this population.</param>
public Population(SimulationWorld world, int amount)
{
this.amount = amount;
this.world = world;
entitys = new AIEntity[amount];
dead = new List <AIEntity>();
for (int i = 0; i < amount; i++)
{
entitys[i] = new AIEntity(world);
}
}
/// <summary>
/// Breed the population in the world.
/// </summary>
/// <param name="world">The world the population lives in.</param>
/// <param name="population">The population we want to breed.</param>
public static void Breed(SimulationWorld world, Population population)
{
AIEntity[] entitys = population.GetEntitys();
//Bread the top half section to the lower half.
int topAmount = (int)(population.GetAmount() * 0.5f);
for (int i = 0; i < topAmount; i += 2)
{
Genome a = entitys[i].GetGenome();
Genome b = entitys[i + 1].GetGenome();
BreedGenome(world, a, b, i, entitys, population.GetAmount());
entitys[i] = new AIEntity(world, a.Copy());
entitys[i + 1] = new AIEntity(world, b.Copy());
}
}
/// <summary>
/// Mergesort 2 lists.
/// </summary>
/// <param name="entitys">The entity list to sort.</param>
/// <param name="left">The left index.</param>
/// <param name="mid">The middle index.</param>
/// <param name="right">The right index.</param>
public static void DoMerge(AIEntity[] entitys, int left, int mid, int right)
{
AIEntity[] temp = new AIEntity[entitys.Length];
int i, left_end, num_elements, tmp_pos;
left_end = (mid - 1);
tmp_pos = left;
num_elements = (right - left + 1);
while ((left <= left_end) && (mid <= right))
{
if (entitys[left].GetFittingValue() >= entitys[mid].GetFittingValue())
{
temp[tmp_pos++] = entitys[left++];
}
else
{
temp[tmp_pos++] = entitys[mid++];
}
}
while (left <= left_end)
{
temp[tmp_pos++] = entitys[left++];
}
while (mid <= right)
{
temp[tmp_pos++] = entitys[mid++];
}
for (i = 0; i < num_elements; i++)
{
entitys[right] = temp[right];
right--;
}
}
