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source: branches/OaaS/HeuristicLab.Problems.LawnMower/3.3/Symbols/ConstantTreeNode.cs @ 14778

Last change on this file since 14778 was 8059, checked in by gkronber, 12 years ago

#1876: initial import of the lawn mower demo problem for GP.

File size: 2.5 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 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 System;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27
28namespace HeuristicLab.Problems.LawnMower {
29  [StorableClass]
30  public sealed class ConstantTreeNode : SymbolicExpressionTreeTerminalNode {
31    private Tuple<int, int> value;
32
33    public override bool HasLocalParameters {
34      get { return true; }
35    }
36
37    [Storable]
38    public Tuple<int, int> Value { get { return value; } private set { this.value = value; } }
39
40    [StorableConstructor]
41    private ConstantTreeNode(bool deserializing) : base(deserializing) { }
42    private ConstantTreeNode(ConstantTreeNode original, Cloner cloner)
43      : base(original, cloner) {
44      this.value = new Tuple<int, int>(original.value.Item1, original.value.Item2);
45    }
46
47    public ConstantTreeNode()
48      : base(new Constant()) {
49      value = Tuple.Create(0, 0);
50    }
51    [StorableHook(HookType.AfterDeserialization)]
52    private void AfterDeserialization() {
53    }
54    public override IDeepCloneable Clone(Cloner cloner) {
55      return new ConstantTreeNode(this, cloner);
56    }
57    public override void ResetLocalParameters(IRandom random) {
58      value = new Tuple<int, int>(random.Next(-20, 20), random.Next(-20, 20));
59    }
60    public override void ShakeLocalParameters(IRandom random, double shakingFactor) {
61      int dX = (int)Math.Round(random.Next(-10, +10) * shakingFactor);
62      int dY = (int)Math.Round(random.Next(-10, +10) * shakingFactor);
63      value = new Tuple<int, int>(value.Item1 + dX, value.Item2 + dY);
64    }
65  }
66}
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