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MASON is a fast discrete-event multiagent simulation library core in Java, designed to be the foundation for large custom-purpose Java simulations, and also to provide more than enough functionality for many lightweight simulation needs. MASON contains both a model library and an optional suite of visualization tools in 2D and 3D.

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/*
  Copyright 2006 by Sean Luke and George Mason University
  Licensed under the Academic Free License version 3.0
  See the file "LICENSE" for more information
*/

package sim.app.woims3d;

import sim.field.continuous.*;
import sim.engine.*;
import sim.display3d.*;
import sim.util.*;
import javax.swing.*;

public class WoimsDemo3D extends SimState
    {
    private static final long serialVersionUID = 1;

    public static final double XMIN = 0;
    public static final double XMAX = 200;
    public static final double YMIN = 0;
    public static final double YMAX = 200;
    public static final double ZMIN = 0;
    public static final double ZMAX = 200;
    
    public static final double DIAMETER = 1;

    public static final double[][] obstInfo = { {40, 40, 40, 40}, {60, 135, 135, 135} };

    public static final int NUM_WOIMS = 40;

    public static final double TIMESTEP = 30;

    public Display3D display;
    public JFrame displayFrame;

    public Continuous3D environment = new Continuous3D( 2*DIAMETER, XMAX-XMIN, YMAX-YMIN, ZMAX-ZMIN );
    public Continuous3D woimEnvironment = null;
    public Continuous3D obstacles = null;

    public WoimsDemo3D(long seed)
        {
        super(seed);
        }

    public final static double EXTRA_SPACE = 10;

    public void setObjectLocation( final Woim3D woim, Double3D location )
        {
        // toroidal world!
        double x = location.x;
        while( x < XMIN - EXTRA_SPACE )
            x += XMAX-XMIN+EXTRA_SPACE+EXTRA_SPACE;
        while( x > XMAX + EXTRA_SPACE )
            x -= XMAX-XMIN+EXTRA_SPACE+EXTRA_SPACE;
        double y = location.y;
        while( y < YMIN - EXTRA_SPACE )
            y += YMAX-YMIN+EXTRA_SPACE+EXTRA_SPACE;
        while( y > YMAX + EXTRA_SPACE )
            y -= YMAX-YMIN+EXTRA_SPACE+EXTRA_SPACE;
        double z = location.z;
        while( z < ZMIN - EXTRA_SPACE )
            z += ZMAX-ZMIN+EXTRA_SPACE+EXTRA_SPACE;
        while( z > ZMAX + EXTRA_SPACE )
            z -= ZMAX-ZMIN+EXTRA_SPACE+EXTRA_SPACE;
        location = new Double3D( x, y, z );
        environment.setObjectLocation( woim, location );
        woimEnvironment.setObjectLocation( woim, location );
        woim.x = location.x;
        woim.y = location.y;
        woim.z = location.z;
        }

    public void start()
        {
        super.start();  // clear out the schedule

        environment = new Continuous3D( 2*DIAMETER, XMAX-XMIN, YMAX-YMIN, ZMAX-ZMIN );
        woimEnvironment = new Continuous3D( Woim3D.MAX_DISTANCE,XMAX-XMIN, YMAX-YMIN, ZMAX-ZMIN );
        obstacles = new Continuous3D( Math.max(XMAX-XMIN,Math.max(YMAX-YMIN,ZMAX-ZMIN)),XMAX-XMIN, YMAX-YMIN, ZMAX-ZMIN );

        // Schedule the Woims -- we could instead use a RandomSequence, which would be faster,
        // but this is a good test of the scheduler
        for(int x=0;x