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source: trunk/sources/HeuristicLab.Problems.ArtificialAnt/3.3/Evaluator.cs @ 3251

Last change on this file since 3251 was 3239, checked in by gkronber, 14 years ago

Extracted view for artificial ant problem into a separate plugin/project. #952 (Artificial Ant Problem for 3.3)

File size: 3.2 KB
Line 
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
22using HeuristicLab.Core;
23using HeuristicLab.Data;
24using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
25using HeuristicLab.Operators;
26using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
27using HeuristicLab.Parameters;
28using HeuristicLab.Optimization;
29
30namespace HeuristicLab.Problems.ArtificialAnt {
31  [Item("ArtificialAntEvaluator", "Evaluates an artificial ant solution.")]
32  [StorableClass]
33  public class Evaluator : SingleSuccessorOperator, ISingleObjectiveEvaluator {
34
35    public ILookupParameter<DoubleValue> QualityParameter {
36      get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
37    }
38
39    public ILookupParameter<SymbolicExpressionTree> SymbolicExpressionTreeParameter {
40      get { return (ILookupParameter<SymbolicExpressionTree>)Parameters["SymbolicExpressionTree"]; }
41    }
42    public ILookupParameter<BoolMatrix> WorldParameter {
43      get { return (ILookupParameter<BoolMatrix>)Parameters["World"]; }
44    }
45    public ILookupParameter<IntValue> MaxTimeStepsParameter {
46      get { return (ILookupParameter<IntValue>)Parameters["MaxTimeSteps"]; }
47    }
48
49    public Evaluator()
50      : base() {
51      Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality of the evaluated artificial ant solution."));
52      Parameters.Add(new LookupParameter<SymbolicExpressionTree>("SymbolicExpressionTree", "The artificial ant solution encoded as a symbolic expression tree that should be evaluated"));
53      Parameters.Add(new LookupParameter<BoolMatrix>("World", "The world for the artificial ant with scattered food items."));
54      Parameters.Add(new LookupParameter<IntValue>("MaxTimeSteps", "The maximal number of time steps that the artificial ant should be simulated."));
55    }
56
57    public sealed override IOperation Apply() {
58      SymbolicExpressionTree expression = SymbolicExpressionTreeParameter.ActualValue;
59      BoolMatrix world = WorldParameter.ActualValue;
60      IntValue maxTimeSteps = MaxTimeStepsParameter.ActualValue;
61
62      AntInterpreter interpreter = new AntInterpreter();
63      interpreter.MaxTimeSteps = maxTimeSteps.Value;
64      interpreter.World = world;
65      interpreter.Expression = expression;
66      interpreter.Run();
67
68      QualityParameter.ActualValue = new DoubleValue(interpreter.FoodEaten);
69      return null;
70    }
71  }
72}
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