src/appletbots/spreadout/SpreadOutApplet.java

   1 /*
   2  * Copyright (c) 2002 Erik Rasmussen - All Rights Reserverd
   3  */
   4 package appletbots.spreadout;
   5
   6 import appletbots.World;
   7 import appletbots.Applet;
   8
   9 import javax.swing.*;
  10 import javax.swing.event.ChangeEvent;
  11 import javax.swing.event.ChangeListener;
  12 import java.awt.event.ActionEvent;
  13 import java.text.NumberFormat;
  14 import java.util.Hashtable;
  15
  16 /**
  17  * An applet to run a SpreadOutAgent simulation
  18  *
  19  * @author Erik Rasmussen
  20  */
  21 public class SpreadOutApplet extends Applet
  22 {
  23         /**
  24          * The maximum number of agents allowed
  25          */
  26         public static final int MAX_NUM_AGENTS = 100;
  27         /**
  28          * The minimum number of agents allowed
  29          */
  30         public static final int MIN_NUM_AGENTS = 2;
  31         /**
  32          * The number of agents
  33          */
  34         protected int numAgents = 50;
  35         /**
  36          * The "Number of Agents" slider
  37          */
  38         protected JSlider numAgentsSlider;
  39         /**
  40          * The "Number of Agents" label
  41          */
  42         protected JLabel numAgentsLabel;
  43         /**
  44          * The maximum agent sight value allowed
  45          */
  46         public static final int MAX_AGENT_SIGHT = 100;
  47         /**
  48          * The minimum agent sight value allowed
  49          */
  50         public static final int MIN_AGENT_SIGHT = 5;
  51         /**
  52          * The agent sight value
  53          */
  54         protected int agentSight = 60;
  55         /**
  56          * The "Agent Sight" slider
  57          */
  58         protected JSlider agentSightSlider;
  59         /**
  60          * The "Agent Sight" label
  61          */
  62         protected JLabel agentSightLabel;
  63         /**
  64          * The maximum acceleration factor allowed
  65          */
  66         public static final int MAX_ACCELERATION_FACTOR = 100;
  67         /**
  68          * The minimum acceleration factor allowed
  69          */
  70         public static final int MIN_ACCELERATION_FACTOR = 0;
  71         /**
  72          * The acceleration factor
  73          */
  74         protected int accelerationFactor = 10;
  75         /**
  76          * The "Acceleration Factor" slider
  77          */
  78         protected JSlider accelerationFactorSlider;
  79         /**
  80          * The "Acceleration Factor" label
  81          */
  82         protected JLabel accelerationFactorLabel;
  83         /**
  84          * The "Stop When No Visible Neighbors" checkbox
  85          */
  86         protected JCheckBox stopWhenNoNeighborsCheckBox;
  87         /**
  88          * Whether or not to stop when there are no visible neighbors
  89          */
  90         protected boolean stopWhenNoNeighbors = true;
  91
  92         private static final NumberFormat PERCENT_FORMAT = NumberFormat.getPercentInstance();
  93
  94         /**
  95          * Initializes the world with the appropriate number of SpreadOutAgents
  96          * with the appropriate "agent sight" settings
  97          *
  98          * @return A world with SpreadOutAgents
  99          */
 100         protected World initializeWorld()
 101         {
 102                 final World world = new World(300, 300);
 103                 try
 104                 {
 105                         for (int i = 0; i < numAgents; i++)
 106                                 world.addObject(new SpreadOutAgent(5, agentSight, 5, 3, accelerationFactor, stopWhenNoNeighbors));
 107                 }
 108                 catch (Exception e)
 109                 {
 110                         e.printStackTrace();
 111                 }
 112                 return world;
 113         }
 114
 115         /**
 116          * Returns a settings panel with "Number of Agents" and "Agent Sight"
 117          * sliders
 118          *
 119          * @return A settings panel with "Number of Agents" and "Agent Sight"
 120          *         sliders
 121          */
 122         protected JPanel getSettingsPanel()
 123         {
 124                 final JPanel settingsPanel = new JPanel();
 125                 settingsPanel.setLayout(new BoxLayout(settingsPanel, BoxLayout.Y_AXIS));
 126
 127                 numAgentsLabel = new JLabel("Number of Agents: " + numAgents);
 128                 numAgentsLabel.setAlignmentX(java.awt.Component.CENTER_ALIGNMENT);
 129                 settingsPanel.add(numAgentsLabel);
 130
 131                 final Hashtable numAgentsLabels = new Hashtable();
 132                 numAgentsLabels.put(new Integer(MIN_NUM_AGENTS), new JLabel(Integer.toString(MIN_NUM_AGENTS)));
 133                 numAgentsLabels.put(new Integer(MAX_NUM_AGENTS), new JLabel(Integer.toString(MAX_NUM_AGENTS)));
 134
 135                 numAgentsSlider = new JSlider(MIN_NUM_AGENTS, MAX_NUM_AGENTS, numAgents);
 136                 numAgentsSlider.setLabelTable(numAgentsLabels);
 137                 numAgentsSlider.setPaintLabels(true);
 138                 numAgentsSlider.addChangeListener(new ChangeListener()
 139                 {
 140                         public void stateChanged(final ChangeEvent event)
 141                         {
 142                                 numAgentsChanged(event);
 143                         }
 144                 });
 145                 settingsPanel.add(numAgentsSlider);
 146
 147                 agentSightLabel = new JLabel("Agent Sight: " + agentSight);
 148                 agentSightLabel.setAlignmentX(java.awt.Component.CENTER_ALIGNMENT);
 149                 settingsPanel.add(agentSightLabel);
 150
 151                 final Hashtable agentSightLabels = new Hashtable();
 152                 agentSightLabels.put(new Integer(MIN_AGENT_SIGHT), new JLabel(Integer.toString(MIN_AGENT_SIGHT)));
 153                 agentSightLabels.put(new Integer(MAX_AGENT_SIGHT), new JLabel(Integer.toString(MAX_AGENT_SIGHT)));
 154
 155                 agentSightSlider = new JSlider(MIN_AGENT_SIGHT, MAX_AGENT_SIGHT, agentSight);
 156                 agentSightSlider.setLabelTable(agentSightLabels);
 157                 agentSightSlider.setPaintLabels(true);
 158                 agentSightSlider.addChangeListener(new ChangeListener()
 159                 {
 160                         public void stateChanged(final ChangeEvent event)
 161                         {
 162                                 agentSightChanged(event);
 163                         }
 164                 });
 165                 settingsPanel.add(agentSightSlider);
 166
 167                 accelerationFactorLabel = new JLabel("Acceleration Factor: " + PERCENT_FORMAT.format(accelerationFactor / 100.0));
 168                 accelerationFactorLabel.setAlignmentX(java.awt.Component.CENTER_ALIGNMENT);
 169                 settingsPanel.add(accelerationFactorLabel);
 170
 171                 final Hashtable accelerationFactorLabels = new Hashtable();
 172                 accelerationFactorLabels.put(new Integer(MIN_ACCELERATION_FACTOR), new JLabel(PERCENT_FORMAT.format(MIN_ACCELERATION_FACTOR / 100.0)));
 173                 accelerationFactorLabels.put(new Integer(MAX_ACCELERATION_FACTOR), new JLabel(PERCENT_FORMAT.format(MAX_ACCELERATION_FACTOR / 100.0)));
 174
 175                 accelerationFactorSlider = new JSlider(MIN_ACCELERATION_FACTOR, MAX_ACCELERATION_FACTOR, accelerationFactor);
 176                 accelerationFactorSlider.setLabelTable(accelerationFactorLabels);
 177                 accelerationFactorSlider.setPaintLabels(true);
 178                 accelerationFactorSlider.addChangeListener(new ChangeListener()
 179                 {
 180                         public void stateChanged(final ChangeEvent event)
 181                         {
 182                                 accelerationFactorChanged(event);
 183                         }
 184                 });
 185                 settingsPanel.add(accelerationFactorSlider);
 186
 187                 stopWhenNoNeighborsCheckBox = new JCheckBox("Stop When No Visible Neighbors");
 188                 stopWhenNoNeighborsCheckBox.setSelected(stopWhenNoNeighbors);
 189                 stopWhenNoNeighborsCheckBox.setAlignmentX(java.awt.Component.CENTER_ALIGNMENT);
 190                 stopWhenNoNeighborsCheckBox.addActionListener(new java.awt.event.ActionListener()
 191                 {
 192                         public void actionPerformed(final ActionEvent event)
 193                         {
 194                                 stopWhenNoNeighborsClicked(event);
 195                         }
 196                 });
 197                 settingsPanel.add(stopWhenNoNeighborsCheckBox);
 198
 199                 final JLabel changes = new JLabel("Changes will take");
 200                 changes.setAlignmentX(java.awt.Component.CENTER_ALIGNMENT);
 201                 final JLabel takeEffect = new JLabel("effect at next reset");
 202                 takeEffect.setAlignmentX(java.awt.Component.CENTER_ALIGNMENT);
 203                 settingsPanel.add(changes);
 204                 settingsPanel.add(takeEffect);
 205                 return settingsPanel;
 206         }
 207
 208         /**
 209          * The method invoked when the "Number of Agents" slider changes
 210          *
 211          * @param event The change event
 212          */
 213         public void numAgentsChanged(final ChangeEvent event)
 214         {
 215                 numAgents = numAgentsSlider.getValue();
 216                 numAgentsLabel.setText("Number of Agents: " + numAgents);
 217         }
 218
 219         /**
 220          * The method invoked when the "Agent Sight" slider changes
 221          *
 222          * @param event The change event
 223          */
 224         public void agentSightChanged(final ChangeEvent event)
 225         {
 226                 agentSight = agentSightSlider.getValue();
 227                 agentSightLabel.setText("Agent Sight: " + agentSight);
 228         }
 229
 230         /**
 231          * The method invoked when the "Acceleration Factor" slider changes
 232          *
 233          * @param event The change event
 234          */
 235         public void accelerationFactorChanged(final ChangeEvent event)
 236         {
 237                 accelerationFactor = accelerationFactorSlider.getValue();
 238                 accelerationFactorLabel.setText("Acceleration Factor: " + PERCENT_FORMAT.format(accelerationFactor / 100.0));
 239         }
 240
 241         /**
 242          * The method invoked when the user selects or deselects the "Choose Neighbors
 243          * by Proximity" check box
 244          *
 245          * @param event The action event
 246          */
 247         public void stopWhenNoNeighborsClicked(final ActionEvent event)
 248         {
 249                 stopWhenNoNeighbors = stopWhenNoNeighborsCheckBox.isSelected();
 250         }
 251 }