fieldview.java

一个java的游戏程序

import java.awt.*;
import java.awt.event.*;
import java.util.*;

class FieldView
    extends Canvas
    implements Observer
{
    private Field _model;

    public FieldView(Field model, Dimension d)
    {
	_model = model;
	addMouseListener(_model);
	setSize(d);
    }

    public void update(Observable o, Object arg)
    {
	repaint();
    }
    
    /**
     * Sets the dimension to be the size of the current kind of game and
     * paints background, token and winline 
     */
    public void paint(Graphics g)
    {
        Dimension d = getSize();
        setBackground(new Color(160,160,130));
	if(_model.getWinLine() != null)
	    g.setColor(Color.red);
	else
	    g.setColor(Color.blue);
        paintToken(g, d);
        paintBackground(g, d);
    }

    public void paintBackground(Graphics g, Dimension d)
    {
        Color bg = getBackground();
        g.setColor(bg);
        g.draw3DRect(0, 0, (int)(d.width * 0.99), (int)(d.height * 0.99), true);
    }

    public void paintToken(Graphics g, Dimension d)
    {
        if(_model.getOccupier() != null)
	    _model.getOccupier().paint(g, d);
    }

}