E:/Projects/Visual Studio/CSharp/GEP .NET Framework/GEP.Core/Float/ConstantsSetMutation.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace GEP.Core.Float
{
    [Serializable]
    public class ConstantsSetMutation
    {
        protected Random _random;
        public float _upperBound;
        public float _lowerBound;
        public float _mutationProbability;
        public int _n_MutationsCycles;
        public ConstantMutation[][] _mutationSequence;
        public int _sequenceIndex = 0;
        public Alphabet _constants;

        public ConstantsSetMutation(float upperBound, float lowerBound, float mutationProbability,
            int n_MutationsCycles, Alphabet constants)
        {
            _constants = constants;
            _upperBound = upperBound;
            _lowerBound = lowerBound;
            _mutationProbability = mutationProbability;
            _n_MutationsCycles = n_MutationsCycles;
            _random = new Random();
        }

        public void GenerateMutationSequence()
        {
            _mutationSequence = new ConstantMutation[_n_MutationsCycles][];
            int mutationsInCycle;
            int constsLenght = _constants.Length;
            for (int i = 0; i < _n_MutationsCycles; i++)
            {
                mutationsInCycle = 0;
                for (int j = 0; j < constsLenght; j++)
                {
                    if (_random.NextDouble() < _mutationProbability)
                        mutationsInCycle++;
                }
                _mutationSequence[i] = new ConstantMutation[mutationsInCycle];
                for (int j = 0; j < mutationsInCycle; j++)
                {
                    _mutationSequence[i][j] = new ConstantMutation(_random.Next(_constants.Length)
                        , Common.Functions.IntervalMapping((float)(_random.NextDouble()), 0F, 1F, _lowerBound, _upperBound));
                }
            }
            _sequenceIndex = 0;
        }

        public void Next()
        {
            for (int i = _mutationSequence[_sequenceIndex].Length - 1; 0 <= i; i--)
            {
                ((Constant)(_constants._symbols[_mutationSequence[_sequenceIndex][i]._indexInAlphabet]))._value =
                    _mutationSequence[_sequenceIndex][i]._newValue;
            }
            _sequenceIndex++;
        }

        public bool HasMore()
        {
            if (_sequenceIndex < _mutationSequence.Length)
                return true;
            return false;
        }
    }
}

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