| 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using HeuristicLab.Common;
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| 23 | using HeuristicLab.Core;
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| 24 | using HeuristicLab.Data;
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| 25 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 26 | using HeuristicLab.Operators;
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| 27 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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| 28 | using HeuristicLab.Parameters;
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| 29 | using HeuristicLab.Optimization;
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| 30 |
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| 31 | namespace HeuristicLab.Problems.ArtificialAnt {
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| 32 | [Item("ArtificialAntEvaluator", "Evaluates an artificial ant solution.")]
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| 33 | [StorableClass]
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| 34 | public class Evaluator : SingleSuccessorOperator, ISingleObjectiveEvaluator {
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| 35 |
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| 36 | public ILookupParameter<DoubleValue> QualityParameter {
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| 37 | get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
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| 38 | }
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| 39 |
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| 40 | public ILookupParameter<SymbolicExpressionTree> SymbolicExpressionTreeParameter {
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| 41 | get { return (ILookupParameter<SymbolicExpressionTree>)Parameters["SymbolicExpressionTree"]; }
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| 42 | }
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| 43 | public ILookupParameter<BoolMatrix> WorldParameter {
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| 44 | get { return (ILookupParameter<BoolMatrix>)Parameters["World"]; }
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| 45 | }
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| 46 | public ILookupParameter<IntValue> MaxTimeStepsParameter {
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| 47 | get { return (ILookupParameter<IntValue>)Parameters["MaxTimeSteps"]; }
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| 48 | }
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| 49 |
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| 50 | public Evaluator()
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| 51 | : base() {
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| 52 | Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality of the evaluated artificial ant solution."));
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| 53 | Parameters.Add(new LookupParameter<SymbolicExpressionTree>("SymbolicExpressionTree", "The artificial ant solution encoded as a symbolic expression tree that should be evaluated"));
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| 54 | Parameters.Add(new LookupParameter<BoolMatrix>("World", "The world for the artificial ant with scattered food items."));
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| 55 | Parameters.Add(new LookupParameter<IntValue>("MaxTimeSteps", "The maximal number of time steps that the artificial ant should be simulated."));
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| 56 | }
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| 57 |
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| 58 | public sealed override IOperation Apply() {
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| 59 | SymbolicExpressionTree expression = SymbolicExpressionTreeParameter.ActualValue;
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| 60 | BoolMatrix world = WorldParameter.ActualValue;
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| 61 | IntValue maxTimeSteps = MaxTimeStepsParameter.ActualValue;
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| 62 |
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| 63 | AntInterpreter interpreter = new AntInterpreter();
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| 64 | interpreter.MaxTimeSteps = maxTimeSteps.Value;
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| 65 | interpreter.World = world;
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| 66 | interpreter.Expression = expression;
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| 67 | interpreter.Run();
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| 68 |
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| 69 | QualityParameter.ActualValue = new DoubleValue(interpreter.FoodEaten);
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| 70 | return null;
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| 71 | }
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| 72 | }
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| 73 | }
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