[6623] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2011 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 | using System.Collections.Generic;
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| 24 | using System.Linq;
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| 25 | using System.Text;
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| 26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 27 | using HeuristicLab.Common;
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| 28 | using HeuristicLab.Core;
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| 29 | using HeuristicLab.Parameters;
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| 30 | using HeuristicLab.Data;
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| 31 | using HeuristicLab.Optimization;
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| 32 | using System.Threading;
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| 33 | using HeuristicLab.SimulationCore.AgentBased;
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| 34 | using HeuristicLab.Analysis;
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| 35 |
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| 36 | namespace HeuristicLab.SimulationCore.Samples {
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| 37 | [Item("GameOfLifeSimulation", "A game of life simulation.")]
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| 38 | [Creatable("Simulations")]
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| 39 | [StorableClass]
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| 40 | public sealed class GameOfLifeSimulation: AgentBasedSimulation {
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| 41 | public override Type ProblemType {
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| 42 | get { return typeof(GameOfLifeScenario); }
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| 43 | }
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| 44 |
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| 45 | private GameOfLifeScenario Scenario {
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| 46 | get {
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| 47 | return Problem as GameOfLifeScenario;
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| 48 | }
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| 49 | }
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| 50 |
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| 51 | public ValueParameter<IntValue> IterationsParameter {
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| 52 | get { return (ValueParameter<IntValue>)Parameters["Iterations"]; }
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| 53 | }
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| 54 |
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| 55 | public GameOfLifeSimulation() : base() {
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| 56 | Parameters.Add(new ValueParameter<IntValue>("Iterations", "The number of iterations.", new IntValue(100)));
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| 57 |
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| 58 | Initialize();
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| 59 | }
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| 60 | [StorableConstructor]
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| 61 | private GameOfLifeSimulation(bool deserializing) : base(deserializing) { }
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| 62 | [StorableHook(HookType.AfterDeserialization)]
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| 63 | private void AfterDeserialization() {
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| 64 | Initialize();
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| 65 | }
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| 66 | private GameOfLifeSimulation(GameOfLifeSimulation original, Cloner cloner)
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| 67 | : base(original, cloner) {
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| 68 | Initialize();
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| 69 | }
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| 70 | public override IDeepCloneable Clone(Cloner cloner) {
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| 71 | return new GameOfLifeSimulation(this, cloner);
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| 72 | }
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| 73 |
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| 74 | private GameOfLifeAgent GetAgent(int x, int y) {
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| 75 | int width = Scenario.WidthParameter.Value.Value;
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| 76 | int height = Scenario.HeightParameter.Value.Value;
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| 77 |
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| 78 | if (x >= width || y >= height)
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| 79 | throw new Exception("invalid index");
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| 80 |
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| 81 | int index = x + y * width;
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| 82 |
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| 83 | return Agents[index] as GameOfLifeAgent;
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| 84 | }
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| 85 |
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| 86 | private void Initialize() {
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| 87 | if (Scenario != null) {
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| 88 | Scenario.WidthParameter.ValueChanged += new EventHandler(WidthParameter_ValueChanged);
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| 89 | if(Scenario.WidthParameter.Value != null)
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| 90 | Scenario.WidthParameter.Value.ValueChanged += new EventHandler(Width_ValueChanged);
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| 91 | Scenario.HeightParameter.ValueChanged += new EventHandler(HeightParameter_ValueChanged);
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| 92 | if (Scenario.HeightParameter.Value != null)
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| 93 | Scenario.HeightParameter.Value.ValueChanged += new EventHandler(Height_ValueChanged);
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| 94 | }
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| 95 | }
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| 96 |
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| 97 | void Width_ValueChanged(object sender, EventArgs e) {
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| 98 | CreateAgents();
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| 99 | }
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| 100 |
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| 101 | void Height_ValueChanged(object sender, EventArgs e) {
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| 102 | CreateAgents();
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| 103 | }
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| 104 |
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| 105 | void HeightParameter_ValueChanged(object sender, EventArgs e) {
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| 106 | CreateAgents();
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| 107 | }
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| 108 |
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| 109 | void WidthParameter_ValueChanged(object sender, EventArgs e) {
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| 110 | CreateAgents();
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| 111 | }
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| 112 |
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| 113 | public IEnumerable<GameOfLifeAgent> GetNeighbors(GameOfLifeAgent agent) {
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| 114 | int width = Scenario.WidthParameter.Value.Value;
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| 115 | int height = Scenario.HeightParameter.Value.Value;
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| 116 | int index = Agents.IndexOf(agent);
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| 117 |
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| 118 | List<GameOfLifeAgent> result = new List<GameOfLifeAgent>();
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| 119 |
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| 120 | int y = index / width;
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| 121 | int x = index - (y * width);
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| 122 |
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| 123 | for (int x1 = x - 1; x1 <= x + 1; x1++) {
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| 124 | for (int y1 = y - 1; y1 <= y + 1; y1++) {
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| 125 | if (x1 >= 0 && y1 >= 0 && x1 < width && y1 < height &&
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| 126 | (x1 != x || y1 != y)) {
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| 127 | GameOfLifeAgent neighbor = GetAgent(x1, y1);
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| 128 | result.Add(neighbor);
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| 129 | }
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| 130 | }
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| 131 | }
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| 132 |
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| 133 | return result;
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| 134 | }
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| 135 |
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| 136 | private void CreateAgents() {
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| 137 | Agents.Clear();
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| 138 | int width = Scenario.WidthParameter.Value.Value;
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| 139 | int height = Scenario.HeightParameter.Value.Value;
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| 140 |
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| 141 | for (int i = 0; i < width * height; i++) {
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| 142 | Agents.Add(new GameOfLifeAgent(this));
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| 143 | }
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| 144 |
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| 145 | InitAgents();
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| 146 | }
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| 147 |
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| 148 | protected override void OnProblemChanged() {
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| 149 | base.OnProblemChanged();
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| 150 |
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| 151 | Initialize();
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| 152 |
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| 153 | CreateAgents();
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| 154 | }
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| 155 |
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| 156 | private void InitAgents() {
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| 157 | double rate = Scenario.AliveRateParameter.Value.Value;
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| 158 | int width = Scenario.WidthParameter.Value.Value;
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| 159 | int height = Scenario.HeightParameter.Value.Value;
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| 160 |
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| 161 | Random rand = new Random();
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| 162 |
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| 163 | for (int i = 0; i < width * height; i++) {
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| 164 | GameOfLifeAgent agent = Agents[i] as GameOfLifeAgent;
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| 165 | agent.Alive = rand.NextDouble() < rate;
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| 166 | }
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| 167 | }
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| 168 |
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| 169 | protected override void OnPrepared() {
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| 170 | base.OnPrepared();
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| 171 |
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| 172 | InitAgents();
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| 173 | }
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| 174 |
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| 175 | private void UpdateResults() {
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| 176 | int width = Scenario.WidthParameter.Value.Value;
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| 177 | int height = Scenario.HeightParameter.Value.Value;
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| 178 |
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| 179 | HeatMap cells = new HeatMap(width, height);
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| 180 |
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| 181 | for (int i = 0; i < width * height; i++) {
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| 182 | int y = i / width;
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| 183 | int x = i - (y * width);
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| 184 |
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| 185 | if (GetAgent(x, y).Alive)
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| 186 | cells[x, y] = 1;
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| 187 | else
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| 188 | cells[x, y] = 0;
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| 189 | }
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| 190 |
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| 191 | Results["Cells"].Value = cells;
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| 192 |
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| 193 | IntValue currentIterations = (Results["CurrentIterations"].Value as IntValue);
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| 194 | currentIterations.Value++;
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| 195 | }
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| 196 |
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| 197 | protected override void Run(CancellationToken cancellationToken) {
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| 198 | int iterations = IterationsParameter.Value.Value;
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| 199 | int width = Scenario.WidthParameter.Value.Value;
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| 200 | int height = Scenario.HeightParameter.Value.Value;
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| 201 |
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| 202 | int start = 0;
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| 203 | if (Results.ContainsKey("CurrentIterations")) {
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| 204 | start = (Results["CurrentIterations"].Value as IntValue).Value;
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| 205 | } else {
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| 206 | Results.Add(new Result("CurrentIterations", new IntValue(0)));
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| 207 | Results.Add(new Result("Cells", new HeatMap(width, height)));
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| 208 | }
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| 209 |
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| 210 | for (int i = start; i < iterations; i++) {
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| 211 | cancellationToken.ThrowIfCancellationRequested();
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| 212 |
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| 213 | base.Step();
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| 214 | UpdateResults();
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| 215 |
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| 216 | Thread.Sleep(250);
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| 217 | }
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| 218 | }
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| 219 | }
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| 220 | }
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