import java.applet.Applet;
import java.awt.*;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.event.MouseEvent;



public class robinson extends Applet {

    TilePanel tilepanel;
    TileControl tilecontrol;
    TileBoard tileboard;
    int width=700,height=500;
    BorderLayout bl;
    Image rotImg,flipImg;

    public void init() {
	rotImg=getImage(getCodeBase(),"rot.gif");
	flipImg=getImage(getCodeBase(),"flip.gif");

	bl=new BorderLayout();
	setLayout(bl);
	tilepanel=new TilePanel(70,480,rotImg,flipImg);
	bl.preferredLayoutSize(tilepanel);
	add("West",tilepanel);

	tileboard=new TileBoard(tilepanel,630,480);
	bl.preferredLayoutSize(tileboard);
	add("Center",tileboard);

	tilecontrol=new TileControl(tilepanel,tileboard);
	bl.preferredLayoutSize(tilecontrol);
	add("South",tilecontrol);

    	/*
	setLayout( new GridBagLayout());
	GridBagConstraints c = new GridBagConstraints();

	tilepanel=new TilePanel(70,480);
	c.gridx=0; c.gridy=0;
	c.gridwidth=1; c.gridheight=1;
	c.weightx=0.0; c.weighty=0.0;
	c.anchor = GridBagConstraints.CENTER;
	add(tilepanel,c);
	
	tilepanel.reshape(630,0,70,480);
	tilepanel.validate();
	*/
    }   
}


class TileControl extends Panel {

    TilePanel tilepanel;
    TileBoard tileboard;
    Button delete,redraw,clear,zoomin,zoomout,recenter;
    
    TileControl(TilePanel tilepanel, TileBoard tileboard) {
	this.tilepanel = tilepanel;
	this.tileboard = tileboard;
	setBackground(Color.lightGray);
	GridBagLayout gb = new GridBagLayout();
	setFont(new Font("Helvetica", Font.PLAIN, 10));
	setLayout(gb);
	GridBagConstraints c = new GridBagConstraints();
	
	c.anchor=GridBagConstraints.SOUTHEAST;
	c.gridx=GridBagConstraints.RELATIVE;
	c.insets=new Insets(1,1,1,1);
	
	this.delete = new Button("Delete");
	gb.setConstraints(delete,c);
	add(delete);

	this.redraw = new Button("Redraw");
	gb.setConstraints(redraw,c);
	add(redraw);

	this.clear = new Button("Clear");
	gb.setConstraints(clear,c);
	add(clear);

	this.zoomin = new Button("Zoom In");
	gb.setConstraints(zoomin,c);
	add(zoomin);

	this.zoomout = new Button("Zoom Out");
	gb.setConstraints(zoomout,c);
	add(zoomout);

	this.recenter = new Button("Re-Center");
	gb.setConstraints(recenter,c);
	add(recenter);

	validate();
  }

    public void paint(Graphics g) {
    } /* end of paint method */

    public boolean action(Event e, Object arg) {
	if (e.target instanceof Button) {
	    if (e.target == clear) {
		for (int x=0; x<tileboard.xnum;x++)
		    for (int y=0; y<tileboard.ynum;y++)
			tileboard.tilestype[x][y]=-1;
		tileboard.paintAll=true;
		tileboard.repaint();
	    }
	    if (e.target == recenter) {
		tilepanel.mode=3;
		tilepanel.paintmode=true;
		tilepanel.repaint();
	    }
	    if (e.target == delete) {
		tilepanel.mode=2;
		tilepanel.paintmode=true;
		tilepanel.repaint();
	    }
	    if (e.target == redraw) {
		tilepanel.paintAllSide=true;
		tilepanel.repaint();
		tileboard.paintAll=true;
		tileboard.repaint();
	    }
	    if (e.target == zoomin) {
		tilepanel.mode=5;
		tilepanel.paintmode=true;
		tilepanel.repaint();
	    }
	    if (e.target == zoomout) {
		tilepanel.mode=4;
		tilepanel.paintmode=true;
		tilepanel.repaint();
	    }
	}
	return true;
    }
}


class Tiles {

    // Tile #, Rotations by 90 degrees, flip along y axis, points along polygon

    static int xpoints[]=new int[29];
    static int ypoints[]=new int[29];

    static int xcoords[][][][]=
    { { { {-2,0,0,-2,0,0,-2,0,2,4,6,8,10,12,14,12,12,16,12,12,14,12,10,8,4,4,2,0,-2 },
          {-2,0,0,-2,0,0,-2,0,2,4,4,8,10,12,14,12,12,16,12,12,14,12,10,8,6,4,2,0,-2 } },
        { {-2,0,0,-4,0,0,-2,0,2,4,6,8,10,12,14,12,12,14,12,12,14,12,10,8,8,4,2,0,-2 },
          {-2,0,0,-4,0,0,-2,0,2,4,8,8,10,12,14,12,12,14,12,12,14,12,10,8,6,4,2,0,-2 } },
        { {-2,0,0,-4,0,0,-2,0,2,4,8,8,10,12,14,12,12,14,12,12,14,12,10,8,6,4,2,0,-2 },
          {-2,0,0,-4,0,0,-2,0,2,4,6,8,10,12,14,12,12,14,12,12,14,12,10,8,8,4,2,0,-2 } },
        { {-2,0,0,-2,0,0,-2,0,2,4,4,8,10,12,14,12,12,16,12,12,14,12,10,8,6,4,2,0,-2 },
          {-2,0,0,-2,0,0,-2,0,2,4,6,8,10,12,14,12,12,16,12,12,14,12,10,8,4,4,2,0,-2 } } },
      { { {0,0,0,4,0,0,0,2,2,4,4,8,10,10,12,12,12,8,12,12,12,10,10,8,4,4,2,2,0 },
          {0,0,0,4,0,0,0,2,2,4,4,8,10,10,12,12,12,8,12,12,12,10,10,8,4,4,2,2,0 } },
        { {0,0,0,4,0,0,0,2,2,4,8,8,10,10,12,12,12,16,12,12,12,10,10,8,8,4,2,2,0 },
          {0,0,0,4,0,0,0,2,2,4,8,8,10,10,12,12,12,16,12,12,12,10,10,8,8,4,2,2,0 } },
        { {0,0,0,4,0,0,0,2,2,4,8,8,10,10,12,12,12,8,12,12,12,10,10,8,8,4,2,2,0 },
          {0,0,0,4,0,0,0,2,2,4,8,8,10,10,12,12,12,8,12,12,12,10,10,8,8,4,2,2,0 } },
        { {0,0,0,-4,0,0,0,2,2,4,4,8,10,10,12,12,12,8,12,12,12,10,10,8,4,4,2,2,0 },
          {0,0,0,-4,0,0,0,2,2,4,4,8,10,10,12,12,12,8,12,12,12,10,10,8,4,4,2,2,0 } } },
      { { {0,0,0,4,0,0,0,2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0 },
          {0,0,0,4,0,0,0,2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0 } },
        { {0,0,0,2,0,0,0,2,2,4,8,8,10,10,12,12,12,14,12,12,12,10,10,8,8,4,2,2,0 },
          {0,0,0,2,0,0,0,2,2,4,8,8,10,10,12,12,12,14,12,12,12,10,10,8,8,4,2,2,0 } },
        { {0,0,0,4,0,0,0,2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0 },
          {0,0,0,4,0,0,0,2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0 } },
        { {0,0,0,-2,0,0,0,2,2,4,4,8,10,10,12,12,12,10,12,12,12,10,10,8,4,4,2,2,0 },
          {0,0,0,-2,0,0,0,2,2,4,4,8,10,10,12,12,12,10,12,12,12,10,10,8,4,4,2,2,0 } } },
      { { {0,0,0,-2,0,0,0,2,2,4,6,8,10,10,12,12,12,16,12,12,12,10,10,8,4,4,2,2,0 },
          {0,0,0,-2,0,0,0,2,2,4,4,8,10,10,12,12,12,16,12,12,12,10,10,8,6,4,2,2,0 } },
        { {0,0,0,-4,0,0,0,2,2,4,6,8,10,10,12,12,12,14,12,12,12,10,10,8,8,4,2,2,0 },
          {0,0,0,-4,0,0,0,2,2,4,8,8,10,10,12,12,12,14,12,12,12,10,10,8,6,4,2,2,0 } },
        { {0,0,0,-4,0,0,0,2,2,4,8,8,10,10,12,12,12,14,12,12,12,10,10,8,6,4,2,2,0 },
          {0,0,0,-4,0,0,0,2,2,4,6,8,10,10,12,12,12,14,12,12,12,10,10,8,8,4,2,2,0 } },
        { {0,0,0,-2,0,0,0,2,2,4,4,8,10,10,12,12,12,16,12,12,12,10,10,8,6,4,2,2,0 },
          {0,0,0,-2,0,0,0,2,2,4,6,8,10,10,12,12,12,16,12,12,12,10,10,8,4,4,2,2,0 } } },
      { { {0,0,0,2,0,0,0,2,2,4,4,8,10,10,12,12,12,10,12,12,12,10,10,8,4,4,2,2,0 },
          {0,0,0,2,0,0,0,2,2,4,4,8,10,10,12,12,12,10,12,12,12,10,10,8,4,4,2,2,0 } },
        { {0,0,0,4,0,0,0,2,2,4,6,8,10,10,12,12,12,16,12,12,12,10,10,8,6,4,2,2,0 },
          {0,0,0,4,0,0,0,2,2,4,6,8,10,10,12,12,12,16,12,12,12,10,10,8,6,4,2,2,0 } },
        { {0,0,0,2,0,0,0,2,2,4,8,8,10,10,12,12,12,10,12,12,12,10,10,8,8,4,2,2,0 },
          {0,0,0,2,0,0,0,2,2,4,8,8,10,10,12,12,12,10,12,12,12,10,10,8,8,4,2,2,0 } },
        { {0,0,0,-4,0,0,0,2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0 },
          {0,0,0,-4,0,0,0,2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0 } } },
      { { {0,0,0,2,0,0,0,2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0 },
          {0,0,0,2,0,0,0,2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0 } },
        { {0,0,0,2,0,0,0,2,2,4,6,8,10,10,12,12,12,14,12,12,12,10,10,8,6,4,2,2,0 },
          {0,0,0,2,0,0,0,2,2,4,6,8,10,10,12,12,12,14,12,12,12,10,10,8,6,4,2,2,0 } },
        { {0,0,0,2,0,0,0,2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0 },
          {0,0,0,2,0,0,0,2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0 } },
        { {0,0,0,-2,0,0,0,2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0 },
          {0,0,0,-2,0,0,0,2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0 } } } };

    static int ycoords[][][][]=
    { { { {0,2,4,6,8,10,12,14,12,12,14,12,12,14,12,10,8,8,4,2,0,-2,0,0,-4,0,0,-2,0 },
          {0,2,4,6,8,10,12,14,12,12,16,12,12,14,12,10,8,4,4,2,0,-2,0,0,-2,0,0,-2,0 } },
        { {0,2,4,8,8,10,12,14,12,12,14,12,12,14,12,10,8,6,4,2,0,-2,0,0,-4,0,0,-2,0 },
          {0,2,4,4,8,10,12,14,12,12,16,12,12,14,12,10,8,6,4,2,0,-2,0,0,-2,0,0,-2,0 } },
        { {0,2,4,4,8,10,12,14,12,12,16,12,12,14,12,10,8,6,4,2,0,-2,0,0,-2,0,0,-2,0 },
          {0,2,4,8,8,10,12,14,12,12,14,12,12,14,12,10,8,6,4,2,0,-2,0,0,-4,0,0,-2,0 } },
        { {0,2,4,6,8,10,12,14,12,12,16,12,12,14,12,10,8,4,4,2,0,-2,0,0,-2,0,0,-2,0 },
          {0,2,4,6,8,10,12,14,12,12,14,12,12,14,12,10,8,8,4,2,0,-2,0,0,-4,0,0,-2,0 } } },
      { { {2,2,4,8,8,10,10,12,12,12,16,12,12,12,10,10,8,8,4,2,2,0,0,0,4,0,0,0,2 },
          {2,2,4,4,8,10,10,12,12,12,8,12,12,12,10,10,8,4,4,2,2,0,0,0,-4,0,0,0,2 } },
        { {2,2,4,8,8,10,10,12,12,12,8,12,12,12,10,10,8,8,4,2,2,0,0,0,4,0,0,0,2 },
          {2,2,4,4,8,10,10,12,12,12,8,12,12,12,10,10,8,4,4,2,2,0,0,0,4,0,0,0,2 } },
        { {2,2,4,4,8,10,10,12,12,12,8,12,12,12,10,10,8,4,4,2,2,0,0,0,-4,0,0,0,2 },
          {2,2,4,8,8,10,10,12,12,12,16,12,12,12,10,10,8,8,4,2,2,0,0,0,4,0,0,0,2 } },
        { {2,2,4,4,8,10,10,12,12,12,8,12,12,12,10,10,8,4,4,2,2,0,0,0,4,0,0,0,2 },
          {2,2,4,8,8,10,10,12,12,12,8,12,12,12,10,10,8,8,4,2,2,0,0,0,4,0,0,0,2 } } },
      { { {2,2,4,8,8,10,10,12,12,12,14,12,12,12,10,10,8,8,4,2,2,0,0,0,2,0,0,0,2 },
          {2,2,4,4,8,10,10,12,12,12,10,12,12,12,10,10,8,4,4,2,2,0,0,0,-2,0,0,0,2 } },
        { {2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0,0,0,4,0,0,0,2 },
          {2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0,0,0,4,0,0,0,2 } },
        { {2,2,4,4,8,10,10,12,12,12,10,12,12,12,10,10,8,4,4,2,2,0,0,0,-2,0,0,0,2 },
          {2,2,4,8,8,10,10,12,12,12,14,12,12,12,10,10,8,8,4,2,2,0,0,0,2,0,0,0,2 } },
        { {2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0,0,0,4,0,0,0,2 },
          {2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0,0,0,4,0,0,0,2 } } },
      { { {2,2,4,6,8,10,10,12,12,12,14,12,12,12,10,10,8,8,4,2,2,0,0,0,-4,0,0,0,2 },
          {2,2,4,6,8,10,10,12,12,12,16,12,12,12,10,10,8,4,4,2,2,0,0,0,-2,0,0,0,2 } },
        { {2,2,4,8,8,10,10,12,12,12,14,12,12,12,10,10,8,6,4,2,2,0,0,0,-4,0,0,0,2 },
          {2,2,4,4,8,10,10,12,12,12,16,12,12,12,10,10,8,6,4,2,2,0,0,0,-2,0,0,0,2 } },
        { {2,2,4,4,8,10,10,12,12,12,16,12,12,12,10,10,8,6,4,2,2,0,0,0,-2,0,0,0,2 },
          {2,2,4,8,8,10,10,12,12,12,14,12,12,12,10,10,8,6,4,2,2,0,0,0,-4,0,0,0,2 } },
        { {2,2,4,6,8,10,10,12,12,12,16,12,12,12,10,10,8,4,4,2,2,0,0,0,-2,0,0,0,2 },
          {2,2,4,6,8,10,10,12,12,12,14,12,12,12,10,10,8,8,4,2,2,0,0,0,-4,0,0,0,2 } } },
      { { {2,2,4,6,8,10,10,12,12,12,16,12,12,12,10,10,8,6,4,2,2,0,0,0,4,0,0,0,2 },
          {2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0,0,0,-4,0,0,0,2 } },
        { {2,2,4,8,8,10,10,12,12,12,10,12,12,12,10,10,8,8,4,2,2,0,0,0,2,0,0,0,2 },
          {2,2,4,4,8,10,10,12,12,12,10,12,12,12,10,10,8,4,4,2,2,0,0,0,2,0,0,0,2 } },
        { {2,2,4,6,8,10,10,12,12,12,8,12,12,12,10,10,8,6,4,2,2,0,0,0,-4,0,0,0,2 },
          {2,2,4,6,8,10,10,12,12,12,16,12,12,12,10,10,8,6,4,2,2,0,0,0,4,0,0,0,2 } },
        { {2,2,4,4,8,10,10,12,12,12,10,12,12,12,10,10,8,4,4,2,2,0,0,0,2,0,0,0,2 },
          {2,2,4,8,8,10,10,12,12,12,10,12,12,12,10,10,8,8,4,2,2,0,0,0,2,0,0,0,2 } } },
      { { {2,2,4,6,8,10,10,12,12,12,14,12,12,12,10,10,8,6,4,2,2,0,0,0,2,0,0,0,2 },
          {2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0,0,0,-2,0,0,0,2 } },
        { {2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0,0,0,2,0,0,0,2 },
          {2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0,0,0,2,0,0,0,2 } },
        { {2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0,0,0,-2,0,0,0,2 },
          {2,2,4,6,8,10,10,12,12,12,14,12,12,12,10,10,8,6,4,2,2,0,0,0,2,0,0,0,2 } },
        { {2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0,0,0,2,0,0,0,2 },
          {2,2,4,6,8,10,10,12,12,12,10,12,12,12,10,10,8,6,4,2,2,0,0,0,2,0,0,0,2 } } } };

    static void calcPoints(int tile, int rot, int reflect, int resize, int xtrans, int ytrans) {
	for (int i=0; i<29; i++){
	    xpoints[i]=resize*xcoords[tile][rot][reflect][i]+xtrans;
	    ypoints[i]=resize*ycoords[tile][rot][reflect][i]+ytrans;
	}
    }
	
}


class TilePanel extends Panel implements MouseListener, MouseMotionListener {
    Image rotImg,flipImg;
    
    Label label;
    Dimension D= new Dimension(70,480);
    int width,height;
    int rot[]=new int[6];
    int flip[]=new int[6];
    Color tileColor[]={Color.blue, Color.red, Color.yellow, Color.green, Color.cyan, Color.orange};
    int curtile;
    int paintSide;
    boolean paintAllSide=false, paintmode=false;
    int mode=0;
    int curx=-1,cury=-1;
    
    TilePanel(int width, int height, Image rotImg, Image flipImg) {
	this.rotImg=rotImg;
	this.flipImg=flipImg;
	this.width=width;
	this.height=height;
	for (int i=0; i<6;i++) {
	    rot[i]=0;
	    flip[i]=0;
	}
	addMouseMotionListener(this);
	addMouseListener(this);
	/*	
	GridBagLayout gb = new GridBagLayout();
	setFont(new Font("Helvetica", Font.PLAIN, 10));
	setLayout(gb);
	GridBagConstraints c = new GridBagConstraints();
	Label label;
	label=new Label("                ");
	c.anchor=GridBagConstraints.SOUTH;
	gb.setConstraints(label,c);
	add(label);
	*/

	setBackground(Color.lightGray);
	BorderLayout bl=new BorderLayout();
	Label label;
	label=new Label("                 ");
	setLayout(bl);
	add("South",label);
	paintAllSide=true;
	repaint();


    }

    /**
     * This method handles the updates from drawing the images.
     */
    public boolean imageUpdate(Image img, int infoflags,
                               int x, int y, int width, int height) {
	if ( (img==rotImg)&&(width==20)&&(height==20) ){
	    paintAllSide=true;
	    repaint();
	}
	if ( (img==flipImg)&&(width==10)&&(height==30) ){
	    paintAllSide=true;
	    repaint();
	}
	return true;
    }
    
    public Dimension minimumSize(){
	return D;
    }
    
    public Dimension preferedSize(){
	return D;
    }

    public void paint(Graphics g) {
	for (int i=0; i<6; i++)
	    paintSample(g,i);
       	g.setColor(Color.black);
	g.setFont( new Font("TimesRoman",Font.PLAIN,14));
	paintMode(g);
    }

    public void paintMode(Graphics g) {
       	g.setColor(Color.black);
	g.fillRect(width-60,440,50,20);
	g.setColor(Color.white);
	switch (mode){
	case (0):
	    g.drawString("MODE",width-58,453);
	    break;
	case (1):
	    g.drawString("PUT",width-49,453);
	    break;
	case (2):
	    g.drawString("DEL",width-49,453);
	    break;
	case (3):
	    g.drawString("CENT",width-58,453);
	    break;
	case (4):
	    g.drawString("ZOUT",width-58,453);
	    break;
	case (5):
	    g.drawString("ZIN",width-49,453);
	    break;
	}
    }

    public void paintSample(Graphics g,int tilenum) {
	g.setColor(Color.lightGray);
	g.fillRect(width-70,5+70*tilenum,70,70);
	g.setColor(tileColor[tilenum]);
	Tiles.calcPoints(tilenum,rot[tilenum],flip[tilenum],3,width-50,25+70*tilenum);
	g.drawImage(rotImg,width-20,5+70*tilenum,20,20,this);
	g.drawImage(flipImg,width-65,30+70*tilenum,10,30,this);
	g.fillPolygon(Tiles.xpoints,Tiles.ypoints,29);
    }

    public void update(Graphics g) {
	if (paintSide!=-1){
	    paintSample(g,paintSide);
	    paintSide=-1;
	}
	if (paintAllSide){
	    paint(g);
	    paintAllSide=false;
	}
	if (paintmode){
	    paintMode(g);
	    paintmode=false;
	}   
    }

    public void mousePressed(MouseEvent e) {
    }
    
    public void mouseDragged(MouseEvent e) {
    }
    
    public void mouseMoved(MouseEvent e) {
    }

    public void mouseReleased(MouseEvent e) {
    }

    public void mouseEntered(MouseEvent e) {
    }

    public void mouseExited(MouseEvent e) {
    }
    
    public void mouseClicked(MouseEvent e) {
	e.consume();
	if (e.getX()>width-70){
	    curtile=(e.getY()-5)/70;
	    if ((curtile>=0)&&(curtile<6)){
		if ( (e.getX() >= width-65) && (e.getX() < width-55) && ((e.getY()-30)%70<30) ){
		    flip[curtile]=(flip[curtile]+1)%2;
		    paintSide=curtile;
		}
		if ( (e.getX() >= width-20) && (e.getX() < width) && ((e.getY()-5)%70<20) ){
		    if (flip[curtile]==0)
			rot[curtile]=(rot[curtile]+1)%4;
		    else
			rot[curtile]=(3+rot[curtile])%4;
		    paintSide=curtile;
		}
		mode=1;
		paintmode=true;
	    } else {
		mode=0;
		paintmode=true;
	    }
	}
	repaint();
	return;
    }
}

class TileBoard extends Panel implements MouseListener, MouseMotionListener {
    Dimension D= new Dimension(630,480);
    int tilesize=3;
    int xzeroloc=0,yzeroloc=0;
    int xnum,ynum;
    int tilestype[][]; //8*color+4*rot+flip
    int width, height;
    TilePanel tilepanel;
    boolean paintmove=false,paintmovereplace=false,paintclick=false,paintdelete=false,paintAll=false;
    int curx,cury;
    int prevx,prevy;
    int deltype=-1;
    int startx,starty,endx,endy;

    TileBoard(TilePanel tilepanel,int width,int height) {

	this.tilepanel=tilepanel;
	this.width=width;
	this.height=height;
	xnum=width/12; ynum=height/12;
	tilestype=new int [xnum+1][ynum+1];
	for (int x=0; x<xnum;x++) 
	    for (int y=0; y<ynum;y++) {
		tilestype[x][y]=-1;
	    }
	addMouseMotionListener(this);
	addMouseListener(this);
	calcBorder();
    }

    public void calcBorder(){
	if (-xzeroloc-1>0)
	    startx=-xzeroloc-1;
	else
	    startx=0;
	if (startx+width/(13*tilesize)+2 < xnum)
	    endx=startx+width/(13*tilesize)+2;
	else
	    endx=xnum;
	if (-yzeroloc-1>0)
	    starty=-yzeroloc-1;
	else
	    starty=0;
	if (starty+height/(13*tilesize)+2 < ynum)
	    endy=starty+height/(13*tilesize)+2;
	else
	    endy=ynum;
    }

    public Dimension preferedSize(){
	return D;
    }

    public void paint(Graphics g) {
	g.setColor(Color.black);
	g.fillRect(0,0,width,height);
	for (int x=startx;x<endx;x++)
	    for (int y=starty;y<endy;y++)
		if (tilestype[x][y]!=-1)
		    paintSquare(g,tilestype[x][y]/8,(tilestype[x][y]/2)%4,tilestype[x][y]%2,
				12*tilesize*(x+xzeroloc),12*tilesize*(y+yzeroloc),
				tilepanel.tileColor[tilestype[x][y]/8]);	    
    }

    public void paintSquare(Graphics g, int tilenum, int rot, int flip, int x, int y, Color color){
	g.setColor(color);
	Tiles.calcPoints(tilenum,rot,flip,tilesize,x,y);
	g.fillPolygon(Tiles.xpoints,Tiles.ypoints,29);
	int startx,starty;
    }

    public void update(Graphics g) {
	if (paintAll){
	    paint(g);
	    paintAll=false;
	    return;
	}
	if ((paintmovereplace)&&(tilestype[prevx][prevy]==-1)){
	    paintSquare(g,tilepanel.curtile,tilepanel.rot[tilepanel.curtile],
			tilepanel.flip[tilepanel.curtile],
			12*tilesize*(prevx+xzeroloc),12*tilesize*(prevy+yzeroloc),
			Color.black);
	    paintmovereplace=false;
	}
	if ((paintmove)&&(tilestype[curx][cury]==-1)){
	    paintSquare(g,tilepanel.curtile,tilepanel.rot[tilepanel.curtile],
			tilepanel.flip[tilepanel.curtile],
			12*tilesize*(curx+xzeroloc),12*tilesize*(cury+yzeroloc),
			tilepanel.tileColor[tilepanel.curtile]);
	    paintmove=false;
	    prevx=curx;prevy=cury;
	    paintmovereplace=true;
	}
	if (paintclick){
	    paintSquare(g,tilepanel.curtile,tilepanel.rot[tilepanel.curtile],
			tilepanel.flip[tilepanel.curtile],
			12*tilesize*(curx+xzeroloc),12*tilesize*(cury+yzeroloc),
			tilepanel.tileColor[tilepanel.curtile]);
	    paintclick=false;
	}
	if ((paintdelete)&&(deltype!=-1)){
	    paintSquare(g,deltype/8,(deltype/2)%4,deltype%2,
			12*tilesize*(curx+xzeroloc),12*tilesize*(cury+yzeroloc),
			Color.black);
	    paintdelete=false;
	}
    }

    boolean isInArray(int x,int y){
	return ( (x>=0)&&(y>=0)&&(x<xnum)&&(y<ynum) );
    }

    // Hold Your Breath when trying to read the testing procedure
boolean isgoodplace(int x,int y){
    if ( ! isInArray(x,y) ) 
	return false;

if (tilestype[x][y]!=-1)        
	// Tile Already There
	    return false;
	// Two Blue Tiles	
	if ( (tilepanel.curtile==0) && ( ( (tilestype[x+1][y]!=-1)&&(tilestype[x+1][y]<8) ) || 
					 ( (tilestype[x+1][y+1]!=-1)&&(tilestype[x+1][y+1]<8) ) ||
					 ( (tilestype[x][y+1]!=-1)&&(tilestype[x][y+1]<8) ) ||
					 ( (x>0)&&(tilestype[x-1][y+1]!=-1)&&(tilestype[x-1][y+1]<8) ) ||
					 ( (x>0)&&(tilestype[x-1][y]!=-1)&&(tilestype[x-1][y]<8) ) ||
					 ( (x>0)&&(y>0)&&(tilestype[x-1][y-1]!=-1)&&(tilestype[x-1][y-1]<8) ) ||
					 ( (y>0)&&(tilestype[x][y-1]!=-1)&&(tilestype[x][y-1]<8) ) ||
					 ( (y>0)&&(tilestype[x+1][y-1]!=-1)&&(tilestype[x+1][y-1]<8) ) ) )
	    return false;
	// No Blue Tiles Four arround
	if ( (tilepanel.curtile!=0) &&
	     ( (tilestype[x+1][y]>7) && ( ( ( (tilestype[x+1][y+1]>7) && (tilestype[x][y+1]>7) ) ||
					    ( (y>0)&&(tilestype[x+1][y-1]>7) && (tilestype[x][y-1]>7) ) ) )||
	       ( (x>0)&&(tilestype[x-1][y]>7) && ( ( (tilestype[x-1][y+1]>7) && (tilestype[x][y+1]>7) ) ||
						   ( (y>0)&&(tilestype[x-1][y-1]>7) && (tilestype[x][y-1]>7) ) ) ) ) )
	    return false;
	// West-East
	if ( (x>0) && (tilestype[x-1][y]!=-1)&&
	     ( ( -Tiles.xcoords[tilepanel.curtile][tilepanel.rot[tilepanel.curtile]][tilepanel.flip[tilepanel.curtile]][3] +
		 Tiles.xcoords[tilestype[x-1][y]/8][(tilestype[x-1][y]/2)%4][tilestype[x-1][y]%2][17] != 12 ) || 
	       ( Tiles.ycoords[tilepanel.curtile][tilepanel.rot[tilepanel.curtile]][tilepanel.flip[tilepanel.curtile]][3] !=
		 Tiles.ycoords[tilestype[x-1][y]/8][(tilestype[x-1][y]/2)%4][tilestype[x-1][y]%2][17]) ) )
	    return false;
	// East-West
	if ( (tilestype[x+1][y]!=-1)&&
	     ( ( Tiles.xcoords[tilepanel.curtile][tilepanel.rot[tilepanel.curtile]][tilepanel.flip[tilepanel.curtile]][17] -
		 Tiles.xcoords[tilestype[x+1][y]/8][(tilestype[x+1][y]/2)%4][tilestype[x+1][y]%2][3] != 12 ) || 
	       ( Tiles.ycoords[tilepanel.curtile][tilepanel.rot[tilepanel.curtile]][tilepanel.flip[tilepanel.curtile]][17] !=
		 Tiles.ycoords[tilestype[x+1][y]/8][(tilestype[x+1][y]/2)%4][tilestype[x+1][y]%2][3] ) ) )
	    return false;
	// North-South
	if ( (y>0)&&(tilestype[x][y-1]!=-1)&&
	     ( ( Tiles.xcoords[tilepanel.curtile][tilepanel.rot[tilepanel.curtile]][tilepanel.flip[tilepanel.curtile]][24] !=
		 Tiles.xcoords[tilestype[x][y-1]/8][(tilestype[x][y-1]/2)%4][tilestype[x][y-1]%2][10] ) || 
	       ( -Tiles.ycoords[tilepanel.curtile][tilepanel.rot[tilepanel.curtile]][tilepanel.flip[tilepanel.curtile]][24] +
		 Tiles.ycoords[tilestype[x][y-1]/8][(tilestype[x][y-1]/2)%4][tilestype[x][y-1]%2][10] != 12) ) )
	    return false;
	// South-North
	if ( (tilestype[x][y+1]!=-1)&&
	     ( ( Tiles.xcoords[tilepanel.curtile][tilepanel.rot[tilepanel.curtile]][tilepanel.flip[tilepanel.curtile]][10] !=
		 Tiles.xcoords[tilestype[x][y+1]/8][(tilestype[x][y+1]/2)%4][tilestype[x][y+1]%2][24] ) || 
	       ( Tiles.ycoords[tilepanel.curtile][tilepanel.rot[tilepanel.curtile]][tilepanel.flip[tilepanel.curtile]][10] -
		 Tiles.ycoords[tilestype[x][y+1]/8][(tilestype[x][y+1]/2)%4][tilestype[x][y+1]%2][24] != 12) ) )
	    return false;

	return true;
    }

    public void mousePressed(MouseEvent e) {
    }
    
    public void mouseDragged(MouseEvent e) {
	e.consume();
        curx=e.getX()/(12*tilesize)-xzeroloc;
        cury=e.getY()/(12*tilesize)-yzeroloc;
	if (tilepanel.mode==1)
	    mouseMoved(e);
	else if ( (tilepanel.mode==2)&&(isInArray(curx,cury))&&(tilestype[curx][cury]!=-1) ){
	    deltype=tilestype[curx][cury];
	    tilestype[curx][cury]=-1;
	    paintdelete=true;
	    repaint();
	}

    }
    
    public void mouseMoved(MouseEvent e) {
	e.consume();
        curx=e.getX()/(12*tilesize)-xzeroloc;
        cury=e.getY()/(12*tilesize)-yzeroloc;
	if ( (tilepanel.mode==1)&&((prevx!=curx)||(prevy!=cury)) ){
	    if (isgoodplace(curx,cury)) {
		paintmove=true;
	    }
	    repaint();
	}
    }

    public void mouseReleased(MouseEvent e) {
    }

    public void mouseEntered(MouseEvent e) {
	e.consume();
        curx=e.getX()/(12*tilesize)-xzeroloc;
        cury=e.getY()/(12*tilesize)-yzeroloc;
	if ((tilepanel.mode==1)&&(isgoodplace(curx,cury))){
	    paintmove=true;
	    repaint();
	}
    }

    public void mouseExited(MouseEvent e) {
	if ( (tilepanel.mode==1)&&(isgoodplace(curx,cury)) ){
	    repaint();
	}

    }

    public void recenter(){
       	if (width/(2*12*tilesize)-curx<width/(12*tilesize)-xnum)
	    xzeroloc= width/(12*tilesize)-xnum;
	else if (width/(2*12*tilesize)-curx>0)
	    xzeroloc=0;
	else
	    xzeroloc=width/(2*12*tilesize)-curx;
       	if (height/(2*12*tilesize)-cury<height/(12*tilesize)-ynum)
	    yzeroloc= height/(12*tilesize)-ynum;
	else if (height/(2*12*tilesize)-cury>0)
	    yzeroloc=0;
	else
	    yzeroloc=height/(2*12*tilesize)-cury;
    }

    public void mouseClicked(MouseEvent e) {
	e.consume();
        curx=e.getX()/(12*tilesize)-xzeroloc;
        cury=e.getY()/(12*tilesize)-yzeroloc;
	if ( (tilepanel.mode==1)&&(isgoodplace(curx,cury)) ){
	    tilestype[curx][cury]=8*tilepanel.curtile+2*tilepanel.rot[tilepanel.curtile]+tilepanel.flip[tilepanel.curtile];
	    paintclick=true;
	    repaint();
	}
	if ( (tilepanel.mode==2)&&(isInArray(curx,cury))&&(tilestype[curx][cury]!=-1) ){
	    deltype=tilestype[curx][cury];
	    tilestype[curx][cury]=-1;
	    paintdelete=true;
	    repaint();
	}
	if (tilepanel.mode==3){
	    recenter();
	    calcBorder();
	    paintAll=true;
	    repaint();
	}
	if (tilepanel.mode==4){
	    if (tilesize>1)
		tilesize--;
	    recenter();
	    calcBorder();
	    paintAll=true;
	    repaint();
	}
	if (tilepanel.mode==5){
	    tilesize++;
	    recenter();
	    calcBorder();
	    paintAll=true;
	    repaint();
	}
    }
}