import java.awt.*;
import awb.*;
import java.awt.event.*;


public class Village extends java.applet.Applet 
                           implements ActionListener
// A graphics demo applet that creates teh House class and
// an array of ten houses.
{
    Graphics g;
    Canvas c;
    Button b1, b2, bleft, bright, bup, bdown, bsmaller, blarger;
    House h1[];
    IntField which;
    int i;

    public void init()
    {
        c = new Canvas();
        c.setSize(200, 200);
        add(c);
        g = c.getGraphics();
        which = new IntField(5);
        which.setLabel("Which house");
        b1 = new Button("Start");
        b1.addActionListener(this);
        b2 = new Button("House");
        b2.addActionListener(this);
        bleft = new Button("Move left");
        bleft.addActionListener(this);
        bright = new Button("Move right");
        bright.addActionListener(this);
        bup = new Button("Move up");
        bup.addActionListener(this);
        bdown = new Button("Move down");
        bdown.addActionListener(this);
        bsmaller = new Button("Smaller");
        bsmaller.addActionListener(this);
        blarger = new Button("Larger");
        blarger.addActionListener(this);
        h1 = new House[10];
        add(which);
        add(b1); add(b2); add(bleft); add(bright); 
        add(bup); add(bdown);  add(bsmaller); add(blarger);
    }

    public void actionPerformed(ActionEvent event)
    {
        Object cause = event.getSource();

        if (cause == b1) // Set background.
	{
           g.setColor(Color.white);
           g.fillRect(0,0,200,200);
        }
        if (cause == b2) // Draw the house.
	{
            i = which.getInt();
            h1[i] = new House(30 * i, 100, 20, 15, g);
            h1[i].draw();
	}
        if (cause == bleft)
	{
            i = which.getInt();
            h1[i].movelr(-1);
	}
        if (cause == bright)
	{
            i = which.getInt();
            h1[i].movelr(1);
	}
        if (cause == bup)
	{
            i = which.getInt();
            h1[i].moveud(-1);
	}
        if (cause == bdown)
	{
            i = which.getInt();
            h1[i].moveud(1);
	}
        if (cause == bsmaller)
	{
            i = which.getInt();
            h1[i].size(-1);
	}
        if (cause == blarger)
	{
            i = which.getInt();
            h1[i].size(1);
	}
    }

    public class House
    {
        protected int hx,hy,hwidth,hheight;
        protected Graphics hg;

        public House(int x,int y,int width,int height, Graphics h)
        {
            hx = x;
            hy = y;
            hwidth = width;
            hheight = height;
            hg = h;
        }

        public void draw()
        {
            hg.setColor(Color.blue);
            hg.fillRect(hx,hy,hwidth,hheight);
            hg.setColor(Color.black);
            hg.fillRect(hx-(hwidth/20),hy,
                         hwidth+(hwidth/10),hheight/3);
            hg.setColor(Color.green);
            hg.fillRect(hx+(2*hwidth/3),hy+hheight/2,
                      hwidth/6, hheight/2);
            hg.fillRect(hx+(hwidth/4),hy+hheight/2,
                      hwidth/6, hheight/8);
            hg.setColor(Color.red);
            hg.fillRect(hx+(3*hwidth/4), hy-hheight/8,
                       hwidth/8, hheight/8);
        }

        public void erase()
        {
            hg.setColor(Color.white);
            hg.fillRect(hx,hy,hwidth,hheight);
            hg.fillRect(hx-(hwidth/20),hy,
                         hwidth+(hwidth/10),hheight/3);
            hg.setColor(Color.white);
            hg.fillRect(hx+(3*hwidth/4), hy-hheight/8,
                       hwidth/8, hheight/8);
	}

        public void movelr(int j)
        {
            erase();
            hx = hx + (j * (1 + hwidth/10));
            draw();
        }

        public void moveud(int j)
        {
            erase();
            hy = hy + (j * (1 + hheight/10));
            draw();
        }

        public void size(int j)
        {
            erase();
            hwidth = hwidth + (j * (1 + hwidth/10));
            hheight = hheight + (j * (1 + hheight/10));
            draw();
        }
    }         
}