public virtual void mutate_node()
{
ConnectionGene con = connections.random_element();
if (con == null)
{
return;
}
NodeGene from = con.From;
NodeGene to = con.To;
int replaceIndex = neat.getReplaceIndex(from, to);
NodeGene middle;
if (replaceIndex == 0)
{
middle = neat.Node;
middle.X = (from.X + to.X) / 2;
middle.Y = (from.Y + to.Y) / 2 + GlobalRandom.NextDouble * 0.1 - 0.05;
neat.setReplaceIndex(from, to, middle.Innovation_number);
}
else
{
middle = neat.getNode(replaceIndex);
}
ConnectionGene con1 = neat.getConnection(from, middle);
ConnectionGene con2 = neat.getConnection(middle, to);
con1.Weight = 1;
con2.Weight = con.Weight;
con2.Enabled = con.Enabled;
connections.remove(con);
connections.add(con1);
connections.add(con2);
nodes.add(middle);
}
public virtual void mutate_link()
{
for (int i = 0; i < 100; i++)
{
NodeGene a = nodes.random_element();
NodeGene b = nodes.random_element();
if (a == null || b == null)
{
continue;
}
if (a.X == b.X)
{
continue;
}
ConnectionGene con;
if (a.X < b.X)
{
con = new ConnectionGene(a, b);
}
else
{
con = new ConnectionGene(b, a);
}
if (connections.contains(con))
{
continue;
}
con = neat.getConnection(con.From, con.To);
con.Weight = (GlobalRandom.NextDouble * 2 - 1) * neat.WEIGHT_RANDOM_STRENGTH;
data_structures.RandomHashSet <Gene> hi = new data_structures.RandomHashSet <Gene>();
hi.add_sorted(connections, con);
return;
}
}
public ConnectionGene(NodeGene from, NodeGene to)
{
this.from = from;
this.to = to;
}
