1

我想通过从另一个列表中获取一些其他随机元素来替换列表中的“变异”元素。

private int elitism = 20;
private int population = 1;
private int chance = 100;
private Random rand = new Random();
private List<HeroStats> allHeroes = new List<HeroStats>();
private List<Team> allTeams = new List<Team>();

如果我创建一个团队并对其进行变异，它应该替换当前团队中的 1 个随机元素，但如果我使用 yhe MutationMethod ，则不会发生替换；我得到了同一个团队

public void Mutation()
{
    // compute how many individuals will 100% survive
    int goodResults= population * elitism / 100;
    int index;
    int position;
    HeroStats old_hero, new_hero;
    Team new_team;

    for (int i = goodResults; i < allTeams.Count(); i++)
    {
        if (rand.Next(0, 100) < chance)
        {
            new_team = allTeams.ElementAt(i);
            index = allTeams.IndexOf(new_team);
            // select random hero within the team , a team having 5 heros
            position = rand.Next(0, 4);
            //RetrieveHero(int x) is a method which returns the hero from position x within a team
            old_hero = new_team.RetrieveHero(position);
            // get a new hero from the hero-list
            new_hero = allHeroes.ElementAt(rand.Next(0, 101));
            // associate the new value to the genome
            new_team.Remove(old_hero);
            new_team.Add(new_hero);
            allTeams[index] = new_team;
        }
    }
}

举个例子：考虑团队 a = [ 1 2 3 4 5]
在team a经历了 Mutation 之后，它可能看起来像这个
团队 a = [1, 2, 3, 4, R] 或团队 a = [1, P, 3, 4, 5] 或 team a = [1, 2, 3, 99, 5]
为什么我的代码行为如此奇怪？

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1 回答 1

3

我设法通过在类中添加一个方法来解决这个问题Team：

public void ReplaceHero(HeroStats hero,HeroStats new_Hero)
        {
            for (int i = 0; i < 5;i++ )
                if (team.ElementAt(i).Equals(hero))
                {
                    team.Remove(hero);
                    team.Add(new_Hero);
                }
        }

如果我可以做出任何改进，我将非常感谢了解它们。

于 2014-09-19T19:46:11.780 回答