src/appletbots/friendly/FriendlyApplet.java

   1 /*
   2  * Copyright (c) 2002 Erik Rasmussen - All Rights Reserverd
   3  */
   4 package appletbots.friendly;
   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.util.Hashtable;
  13
  14 /**
  15  * An applet to run a FriendlyAgent simulation
  16  *
  17  * @author Erik Rasmussen
  18  */
  19 public class FriendlyApplet extends Applet
  20 {
  21         /**
  22          * The maximum number of agents allowed
  23          */
  24         public static final int MAX_NUM_AGENTS = 100;
  25         /**
  26          * The minimum number of agents allowed
  27          */
  28         public static final int MIN_NUM_AGENTS = 2;
  29         /**
  30          * The number of agents
  31          */
  32         protected int numAgents = 50;
  33         /**
  34          * The "Number of Agents" slider
  35          */
  36         protected JSlider numAgentsSlider;
  37         /**
  38          * The "Number of Agents" label
  39          */
  40         protected JLabel numAgentsLabel;
  41         /**
  42          * The maximum agent sight value allowed
  43          */
  44         public static final int MAX_AGENT_SIGHT = 100;
  45         /**
  46          * The minimum agent sight value allowed
  47          */
  48         public static final int MIN_AGENT_SIGHT = 5;
  49         /**
  50          * The agent sight value
  51          */
  52         protected int agentSight = 60;
  53         /**
  54          * The "Agent Sight" slider
  55          */
  56         protected JSlider agentSightSlider;
  57         /**
  58          * The "Agent Sight" label
  59          */
  60         protected JLabel agentSightLabel;
  61
  62         /**
  63          * Initializes the world with the appropriate number of FriendlyAgents
  64          * with the appropriate "agent sight" settings
  65          *
  66          * @return A world with FriendlyAgents
  67          */
  68         protected World initializeWorld()
  69         {
  70                 final World world = new World(300, 300);
  71                 try
  72                 {
  73                         for (int i = 0; i < numAgents; i++)
  74                                 world.addObject(new FriendlyAgent(5, agentSight, 5, 3));
  75                 }
  76                 catch (Exception e)
  77                 {
  78                         e.printStackTrace();
  79                 }
  80                 return world;
  81         }
  82
  83         /**
  84          * Returns a settings panel with "Number of Agents" and "Agent Sight"
  85          * sliders
  86          *
  87          * @return A settings panel with "Number of Agents" and "Agent Sight"
  88          *         sliders
  89          */
  90         protected JPanel getSettingsPanel()
  91         {
  92                 final JPanel settingsPanel = new JPanel();
  93                 settingsPanel.setLayout(new BoxLayout(settingsPanel, BoxLayout.Y_AXIS));
  94
  95                 numAgentsLabel = new JLabel("Number of Agents: " + numAgents);
  96                 numAgentsLabel.setAlignmentX(java.awt.Component.CENTER_ALIGNMENT);
  97                 settingsPanel.add(numAgentsLabel);
  98
  99                 final Hashtable numAgentsLabels = new Hashtable();
 100                 numAgentsLabels.put(new Integer(MIN_NUM_AGENTS), new JLabel(Integer.toString(MIN_NUM_AGENTS)));
 101                 numAgentsLabels.put(new Integer(MAX_NUM_AGENTS), new JLabel(Integer.toString(MAX_NUM_AGENTS)));
 102
 103                 numAgentsSlider = new JSlider(MIN_NUM_AGENTS, MAX_NUM_AGENTS, numAgents);
 104                 numAgentsSlider.setLabelTable(numAgentsLabels);
 105                 numAgentsSlider.setPaintLabels(true);
 106                 numAgentsSlider.addChangeListener(new ChangeListener()
 107                 {
 108                         public void stateChanged(final ChangeEvent event)
 109                         {
 110                                 numAgentsChanged(event);
 111                         }
 112                 });
 113                 settingsPanel.add(numAgentsSlider);
 114
 115                 agentSightLabel = new JLabel("Agent Sight: " + agentSight);
 116                 agentSightLabel.setAlignmentX(java.awt.Component.CENTER_ALIGNMENT);
 117                 settingsPanel.add(agentSightLabel);
 118
 119                 final Hashtable agentSightLabels = new Hashtable();
 120                 agentSightLabels.put(new Integer(MIN_AGENT_SIGHT), new JLabel(Integer.toString(MIN_AGENT_SIGHT)));
 121                 agentSightLabels.put(new Integer(MAX_AGENT_SIGHT), new JLabel(Integer.toString(MAX_AGENT_SIGHT)));
 122
 123                 agentSightSlider = new JSlider(MIN_AGENT_SIGHT, MAX_AGENT_SIGHT, agentSight);
 124                 agentSightSlider.setLabelTable(agentSightLabels);
 125                 agentSightSlider.setPaintLabels(true);
 126                 agentSightSlider.addChangeListener(new ChangeListener()
 127                 {
 128                         public void stateChanged(final ChangeEvent event)
 129                         {
 130                                 agentSightChanged(event);
 131                         }
 132                 });
 133                 settingsPanel.add(agentSightSlider);
 134
 135                 final JLabel changes = new JLabel("Changes will take");
 136                 changes.setAlignmentX(java.awt.Component.CENTER_ALIGNMENT);
 137                 final JLabel takeEffect = new JLabel("effect at next reset");
 138                 takeEffect.setAlignmentX(java.awt.Component.CENTER_ALIGNMENT);
 139                 settingsPanel.add(changes);
 140                 settingsPanel.add(takeEffect);
 141                 return settingsPanel;
 142         }
 143
 144         /**
 145          * The method invoked when the "Number of Agents" slider changes
 146          *
 147          * @param event The change event
 148          */
 149         public void numAgentsChanged(final ChangeEvent event)
 150         {
 151                 numAgents = numAgentsSlider.getValue();
 152                 numAgentsLabel.setText("Number of Agents: " + numAgents);
 153         }
 154
 155         /**
 156          * The method invoked when the "Agent Sight" slider changes
 157          *
 158          * @param event The change event
 159          */
 160         public void agentSightChanged(final ChangeEvent event)
 161         {
 162                 agentSight = agentSightSlider.getValue();
 163                 agentSightLabel.setText("Agent Sight: " + agentSight);
 164         }
 165 }