static private Arena PrepareArenaHare(Perceptron perceptron)
{
var arena = new Arena(width, height);
var hare = new Hare(arena);
var lynx = new Lynx(arena);
hare.Other = lynx;
lynx.Other = hare;
arena.AddAnimal(hare);
arena.AddAnimal(lynx);
hare.Perceptron = perceptron;
return(arena);
}