keepawaywithui.java

MASON代表多主体邻里或网络仿真(Multi-Agent Simulator of Neighborhoods or Networks)。它是乔治梅森大学用Java开发的离散事件多主体仿真核心库

package sim.app.keepaway;
import sim.engine.*;
import sim.display.*;
import sim.portrayal.continuous.*;
import java.awt.*;
import javax.swing.*;

public class KeepawayWithUI extends GUIState
    {
    public Display2D display;
    public JFrame displayFrame;

    ContinuousPortrayal2D entityPortrayal = new ContinuousPortrayal2D();

    public static void main(String[] args)
        {
        KeepawayWithUI botball = new KeepawayWithUI();
        Console c = new Console(botball);
        c.setVisible(true);
        }
    
    public KeepawayWithUI() { super(new Keepaway(System.currentTimeMillis())); }
    
    public KeepawayWithUI(SimState state) { super(state); }
    
    public String getName() { return "Keepaway"; }
    
    public String getInfo()
        {
        
        Keepaway bb = (Keepaway) state;
        
        return 
            "<H2>Keepaway</H2><br>"+
            "A misleadingly-named Keepaway Soccer Demo<br>"+
            "by Dan Kuebrich<br><br>"; 
        }
    
    public void start()
        {
        super.start();
        // set up our portrayals
        setupPortrayals();
        }
    
    public void load(SimState state)
        {
        super.load(state);
        // we now have new grids.  Set up the portrayals to reflect that
        setupPortrayals();
        }
        

    public void setupPortrayals()
        {
        // tell the portrayals what to portray and how to portray them
        entityPortrayal.setField(((Keepaway)state).fieldEnvironment);
        entityPortrayal.setPortrayalForClass(Bot.class, new sim.portrayal.simple.RectanglePortrayal2D(Color.red));
        entityPortrayal.setPortrayalForClass(Ball.class, new sim.portrayal.simple.OvalPortrayal2D(Color.white));
                    
        // reschedule the displayer
        display.reset();
                
        // redraw the display
        display.repaint();
        }
    
    public void init(Controller c)
        {
        super.init(c);
        
        // Make the Display2D.  We'll have it display stuff later.
        display = new Display2D(400,400,this,1); // at 400x400, we've got 4x4 per array position
        displayFrame = display.createFrame();
        c.registerFrame(displayFrame);   // register the frame so it appears in the "Display" list
        displayFrame.setVisible(true);

        // attach the portrayals
        display.attach(entityPortrayal,"Bots and Balls");

        // specify the backdrop color  -- what gets painted behind the displays
        display.setBackdrop(new Color(0,80,0));  // a dark green
        }
        
    public void quit()
        {
        super.quit();
        
        if (displayFrame!=null) displayFrame.dispose();
        displayFrame = null;  // let gc
        display = null;       // let gc
        }
    }