[14477] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2016 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 System;
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| 23 |
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| 24 | namespace HeuristicLab.Encodings.LinearLinkageEncoding {
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| 25 | public class SplitMove : Move {
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| 26 |
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| 27 | private int nextItem;
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| 28 |
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| 29 | public SplitMove(int item) {
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| 30 | Item = item;
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| 31 | nextItem = -1;
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| 32 | }
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| 33 |
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| 34 | public override void Apply(LinearLinkage lle) {
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| 35 | if (lle[Item] == Item) throw new ArgumentException("Move conditions have changed, group is already split at " + Item);
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| 36 | nextItem = lle[Item];
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| 37 | lle[Item] = Item;
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| 38 | }
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| 39 |
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| 40 | public override void Undo(LinearLinkage lle) {
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| 41 | if (lle[Item] != Item) throw new ArgumentException("Move conditions have changed, group no longer terminates at " + Item);
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| 42 | if (nextItem < 0) throw new InvalidOperationException("Cannot undo move that has not been applied first.");
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| 43 | lle[Item] = nextItem;
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| 44 | }
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| 45 |
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[14492] | 46 | public override void ApplyToLLEb(int[] lleb) {
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| 47 | if (nextItem < 0) throw new InvalidOperationException("Cannot undo move that has not been applied first to LLE.");
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| 48 | lleb[nextItem] = nextItem;
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[14477] | 49 | }
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| 50 | }
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| 51 | }
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