| 1 | #region License Information
|
|---|
| 2 | /* HeuristicLab
|
|---|
| 3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
|
|---|
| 4 | *
|
|---|
| 5 | * This file is part of HeuristicLab.
|
|---|
| 6 | *
|
|---|
| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
|
|---|
| 8 | * it under the terms of the GNU General Public License as published by
|
|---|
| 9 | * the Free Software Foundation, either version 3 of the License, or
|
|---|
| 10 | * (at your option) any later version.
|
|---|
| 11 | *
|
|---|
| 12 | * HeuristicLab is distributed in the hope that it will be useful,
|
|---|
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|---|
| 15 | * GNU General Public License for more details.
|
|---|
| 16 | *
|
|---|
| 17 | * You should have received a copy of the GNU General Public License
|
|---|
| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
|
|---|
| 19 | */
|
|---|
| 20 | #endregion
|
|---|
| 21 |
|
|---|
| 22 | using HeuristicLab.Core;
|
|---|
| 23 | using HeuristicLab.Data;
|
|---|
| 24 | using HeuristicLab.Parameters;
|
|---|
| 25 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
|
|---|
| 26 | using HeuristicLab.Random;
|
|---|
| 27 |
|
|---|
| 28 | namespace HeuristicLab.Operators {
|
|---|
| 29 | /// <summary>
|
|---|
| 30 | /// An operator which creates a new pseudo random number generator.
|
|---|
| 31 | /// </summary>
|
|---|
| 32 | [Item("RandomCreator", "An operator which creates a new pseudo random number generator.")]
|
|---|
| 33 | [EmptyStorableClass]
|
|---|
| 34 | [Creatable("Test")]
|
|---|
| 35 | public sealed class RandomCreator : SingleSuccessorOperator {
|
|---|
| 36 | public ValueLookupParameter<BoolData> SetSeedRandomlyParameter {
|
|---|
| 37 | get { return (ValueLookupParameter<BoolData>)Parameters["SetSeedRandomly"]; }
|
|---|
| 38 | }
|
|---|
| 39 | public ValueLookupParameter<IntData> SeedParameter {
|
|---|
| 40 | get { return (ValueLookupParameter<IntData>)Parameters["Seed"]; }
|
|---|
| 41 | }
|
|---|
| 42 | public LookupParameter<IRandom> RandomParameter {
|
|---|
| 43 | get { return (LookupParameter<IRandom>)Parameters["Random"]; }
|
|---|
| 44 | }
|
|---|
| 45 | public BoolData SetSeedRandomly {
|
|---|
| 46 | get { return SetSeedRandomlyParameter.Value; }
|
|---|
| 47 | set { SetSeedRandomlyParameter.Value = value; }
|
|---|
| 48 | }
|
|---|
| 49 | public IntData Seed {
|
|---|
| 50 | get { return SeedParameter.Value; }
|
|---|
| 51 | set { SeedParameter.Value = value; }
|
|---|
| 52 | }
|
|---|
| 53 |
|
|---|
| 54 | public RandomCreator()
|
|---|
| 55 | : base() {
|
|---|
| 56 | Parameters.Add(new ValueLookupParameter<BoolData>("SetSeedRandomly", "True if the random seed should be set to a random value, otherwise false.", new BoolData(true)));
|
|---|
| 57 | Parameters.Add(new ValueLookupParameter<IntData>("Seed", "The random seed used to initialize the new pseudo random number generator.", new IntData(0)));
|
|---|
| 58 | Parameters.Add(new LookupParameter<IRandom>("Random", "The new pseudo random number generator which is initialized with the given seed."));
|
|---|
| 59 | }
|
|---|
| 60 |
|
|---|
| 61 | public override IOperation Apply() {
|
|---|
| 62 | if (SetSeedRandomlyParameter.ActualValue == null) SetSeedRandomlyParameter.ActualValue = new BoolData(true);
|
|---|
| 63 | bool setSeedRandomly = SetSeedRandomlyParameter.ActualValue.Value;
|
|---|
| 64 | if (SeedParameter.ActualValue == null) SeedParameter.ActualValue = new IntData(0);
|
|---|
| 65 | IntData seed = SeedParameter.ActualValue;
|
|---|
| 66 |
|
|---|
| 67 | if (setSeedRandomly) seed.Value = new System.Random().Next();
|
|---|
| 68 | RandomParameter.ActualValue = new MersenneTwister((uint)seed.Value);
|
|---|
| 69 |
|
|---|
| 70 | return base.Apply();
|
|---|
| 71 | }
|
|---|
| 72 | }
|
|---|
| 73 | }
|
|---|
