C# Chromosome类代码示例

        public void Population_GetBestChromosome()
        {
            List<City> cities = new List<City>();
            cities.Add(new City(1, 1, "A"));
            cities.Add(new City(2, 2, "B"));
            cities.Add(new City(3, 3, "C"));
            cities.Add(new City(4, 4, "D"));
            cities.Add(new City(5, 5, "E"));

            List<City> cities2 = new List<City>();
            cities2.Add(new City(1, 1, "A"));
            cities2.Add(new City(5, 5, "B"));
            cities2.Add(new City(3, 3, "C"));
            cities2.Add(new City(4, 4, "D"));
            cities2.Add(new City(2, 2, "E"));

            Population p = new Population();
            Chromosome c = new Chromosome(cities);
            Chromosome c2 = new Chromosome(cities2);

            p.Add(c);
            p.Add(c2);

            Chromosome best = p.GetBestChromosome();

            Assert.AreEqual(c, best);
        }

        public void Test_CompareTo()
        {
            Chromosome c1 = new Chromosome("Hello, world!");
            Assert.AreEqual(0, c1.GetFitness());

            Chromosome c2 = new Chromosome("H5p&J;!l<X\\7l");
            Assert.AreEqual(399, c2.GetFitness());

            Chromosome c3 = new Chromosome("Vc;fx#QRP8V\\$");
            Assert.AreEqual(297, c3.GetFitness());

            Chromosome c4 = new Chromosome("t\\O`E_Jx$n=NF");
            Assert.AreEqual(415, c4.GetFitness());

            Assert.AreEqual(0, c1.CompareTo(c1));
            Assert.IsTrue(c1.CompareTo(c2) < 0);
            Assert.IsTrue(c1.CompareTo(c3) < 0);
            Assert.IsTrue(c1.CompareTo(c4) < 0);

            Assert.AreEqual(0, c2.CompareTo(c2));
            Assert.IsTrue(c2.CompareTo(c1) > 0);
            Assert.IsTrue(c2.CompareTo(c3) > 0);
            Assert.IsTrue(c2.CompareTo(c4) < 0);

            Assert.AreEqual(0, c3.CompareTo(c3));
            Assert.IsTrue(c3.CompareTo(c1) > 0);
            Assert.IsTrue(c3.CompareTo(c2) < 0);
            Assert.IsTrue(c3.CompareTo(c4) < 0);

            Assert.AreEqual(0, c4.CompareTo(c4));
            Assert.IsTrue(c4.CompareTo(c1) > 0);
            Assert.IsTrue(c4.CompareTo(c2) > 0);
            Assert.IsTrue(c4.CompareTo(c3) > 0);
        }

 void SpawnNeutralCell()
 {
     Chromosome outputChromosome = new Chromosome(NeutralType);
     Vector2 RandomPosition = Random.insideUnitCircle * SpawnDistanceScale;
     Vector3 spawnLocation = new Vector3(transform.position.x + RandomPosition.x, 0, transform.position.z + RandomPosition.y);
     manager.SpawnNeutral(spawnLocation, outputChromosome);
 }

 public void EqualsObj_xEqualsy_and_yEqualsx_returns_xEqualsz()
 {
     var x = new Chromosome();
       var y = new Chromosome();
       var z = new Chromosome();
       Assert.IsTrue(!(x.Equals((object)y) && y.Equals((object)z)) || x.Equals((object)z));
 }

        public void ChromosomePair_CreateCrossoverChild()
        {
            List<City> cities = new List<City>();
            cities.Add(new City(1, 1, "A"));
            cities.Add(new City(2, 2, "B"));
            cities.Add(new City(3, 3, "C"));
            cities.Add(new City(4, 4, "D"));
            cities.Add(new City(5, 5, "E"));

            List<City> cities2 = new List<City>();
            cities2.Add(new City(1, 1, "A"));
            cities2.Add(new City(5, 5, "B"));
            cities2.Add(new City(3, 3, "C"));
            cities2.Add(new City(4, 4, "D"));
            cities2.Add(new City(2, 2, "E"));

            Chromosome c = new Chromosome(cities);
            Chromosome c2 = new Chromosome(cities2);

            ChromosomePair pair = new ChromosomePair(c, c2);

            Chromosome child = pair.CreateCrossoverChild();

            Assert.AreNotEqual(c, child);
        }

        //int maxLength;    // maximum length of string to invert.

        /// <summary>
        /// Reorders the genes in the chromosome.
        /// </summary>
        /// <param name="c">The chromosome to be reordered.</param>
        public static void Reorder(Chromosome c)
        {
            // This is like two-point crossover, in that we pick two
            // random points on the chromosome.  We then reverse the order
            // of the genes contained between those two points.
            int NumberOfGenes;

            NumberOfGenes = c.Genes.Length;
            int CrossoverPoint1 = Utils.Rand.Next( NumberOfGenes );
            int CrossoverPoint2 = Utils.Rand.Next( NumberOfGenes );
            if ( CrossoverPoint1 > CrossoverPoint2 )
            {
                int tmp = CrossoverPoint1;
                CrossoverPoint1 = CrossoverPoint2;
                CrossoverPoint2 = tmp;
            }
 
            for (
                int i=CrossoverPoint1, j=CrossoverPoint2; 
                (i - CrossoverPoint1) < (CrossoverPoint2-CrossoverPoint1)/2;
                i++,j--
                )
            {
                Gene g = c.Genes[i];
                c.Genes[i] = c.Genes[j];
                c.Genes[j] = g;
            }
        }

        public Tuple<Chromosome, Chromosome> Crossover(Chromosome c1, Chromosome c2)
        {
            var locus = random.Next(0, c1.Value.Length + 1); // Locus: http://en.wikipedia.org/wiki/Locus_(genetics)
            string ch1 = c1.Value.Substring(0, locus) + c2.Value.Substring(locus),
                   ch2 = c2.Value.Substring(0, locus) + c1.Value.Substring(locus);

            return new Tuple<Chromosome, Chromosome>(new Chromosome(ch1, fitnessCalculator), new Chromosome(ch2, fitnessCalculator));
        }

        public void TestFitnessNoMatch()
        {
            Chromosome.SetTargetGene("ABCF");

            Chromosome first = new Chromosome("ABCE");

            System.Diagnostics.Debug.Assert(first.Fitness == 1);
        }

 public Population(float target, IEnumerable<Chromosome> chromos, Random random, Chromosome solution, int generation)
 {
     this.target = target;
     this.chromos = chromos.ToList();
     this.solution = solution;
     this.generation = generation;
     this.random = random;
 }

        public Chromosome Mutate(Chromosome ch)
        {
            var sb = new StringBuilder(ch.Value);
            var randomPositon = random.Next(0, ch.Value.Length);
            sb[randomPositon] = generator.GenerateCharacter();

            return new Chromosome(sb.ToString(), fitnessCalculator);
        }

        public override double CalculateFitness(Chromosome ch)
        {
            var score = game.Start(ch.Replay);
            //var filledSpaces = game.FilledSpaces();

            // TODO: find a way to calculate a fitness based on the score and filledSpaces
            return score;// (score + 1) * filledSpaces;
        }

 // Converts a chromosome to its respective sequence of cities' indexes.
 public static string chromosomeToString(Chromosome chromosome)
 {
     string str = "";
     foreach (var gene in chromosome.Genes)
     {
         str += ((int)gene.RealValue).ToString() + " ";
     }
     return str;
 }

        public Chromosome Mutate(Chromosome ch)
        {
            var replay = ch.Replay.ToString();
            var sb = new StringBuilder(replay);
            var randomPositon = random.Next(0, replay.Length);
            sb[randomPositon] = characterSet.GetRandomCharacter();

            return new Chromosome(new Replay(sb.ToString()), fitnessCalculator);
        }

 public Population RandomPopulation()
 {
     var chromosomes = new Chromosome[ChromosomeCount];
     for (int i = 0; i < ChromosomeCount; i++)
     {
         chromosomes[i] = RandomChromosome();
     }
     return new Population(chromosomes);
 }

    public void CreateInfectedCell(Chromosome _inputChromosome, Vector3 _location)
    {
        GameObject newCell = (GameObject)Instantiate(cell, _location, transform.rotation);
        CellScript script = newCell.GetComponent<CellScript>();
        script.manager = this;
        script.CreateInfected(_inputChromosome);

        infectedList.Add(script);
    }