/* BUGS: kiirus ei muutu;
			tase 2 ujub läbi;
			pausi ei oska panna;
			seina tundlikkust peaks vähendama;
*/

import java.awt.*;
import java.applet.*;

public class Uss extends Applet implements Runnable
{
Image punkt[]=new Image[400];
Image taust;
Image     offI;
Graphics  offG;

int x[]= new int[400];
int y[]= new int[400];
int suund=1;
int game=1;
int tase;
int z;
int n;
int arv=0;
int skoor=0;
int lisa=5;

Button b1= new Button("Tase 1");
Button b2= new Button("Tase 2");
Button b3= new Button("Tase 3");

String tempo;
String s;
String t;

boolean go[]=new boolean[400];
boolean left=false;
boolean right=false;
boolean up=false;
boolean down=false;
boolean algus=false ;

Thread setTime;

public void init() 
{
	add(b1);
	add(b2);
	add(b3);
	setBackground(Color.black);
	taust = getImage(getCodeBase(), "taust.gif");
	for (z=0 ; z < 200 ; z++)
	{
   	   punkt[z] = getImage(getCodeBase(), "punkt1.gif");  
	}
}


public void update(Graphics g)			// ei saa aru, mis teeb, aga ilma selleta raibe vilgub
{
	Dimension d = this.size();
	if(offI == null)
	{
		offI = createImage(d.width, d.height);
		offG = offI.getGraphics();
	}
	offG.clearRect(0, 0, d.width, d.height);
	paint(offG);
	g.drawImage(offI, 0, 0, null);
}

public void paint(Graphics g)
{
	g.drawImage(taust, 0, 0, this);
	g.setColor(Color.white);

	if(algus)
	{
		
		g.setFont(new Font("Verdana", 1, 12));
		t = "Skoor >> "+skoor+"";
		g.drawString(t, 65, 220);
	}

	if(game==1) 
	{ 
		g.setFont(new Font("Verdana", 1, 14));
		s = "Vali Tase >>>";
		g.drawString(s, 58, 75);
		b1.move(213, 60);
		b2.move(213, 100);
		b3.move(213, 140); 
	}

	if((game==2)||(game==3))
	{
		if(!algus)
		{
			g.setFont(new Font("Verdana", 1, 11));
			t = "Kasuta nooleklahve!";
			g.drawString(t, 35, 220);
		}
		
		for (z=0 ; z <= n ; z++)
		{  
		   g.drawImage(punkt[z],x[z],y[z],this);  
		}
		
	}

	if(game==3)
	{
		g.setFont(new Font("Verdana", 1, 13));
		s="Mäng Läbi!";
		g.drawString(s, 65, 60);
	}

}

public void run()
{
	for(z=4 ;z <200 ; z++) 
	{ 
	   go[z]=false;
	}
	for(z=0 ; z<4 ; z++) 
	{ 
	   go[z]=true;
	   x[z]=91;
	   y[z]=91;
	}
	n=3;
	game=2;
	skoor=0;
	b1.move(70, -100);
	b2.move(70, -100);
	b3.move(70, -100);
	left=false;
	right=false;
	up=false;
	down=false;
	locateRandom(4);

	while(true)
	{
		if (game==2)
		{
			if ((x[0]==x[n])&&(y[0]==y[n]))
			{
			   go[n]=true;
			   locateRandom((n+1));
			   skoor+=lisa; 
			}
			for(z = 399 ; z > 0 ; z--)
			{
				if (go[z]) 
				{ 
					x[z] = x[(z-1)]; 
					y[z] = y[(z-1)]; 
					if ((z>4)&&(x[0]==x[z])&&(y[0]==y[z]))
					{ 
					   game=3; 
					} 
				}
			}
			if(left)			   // liikumine 10 pixeli kaupa
			{
			 x[0]-=10; 
			}
			if(right)
			{
			 x[0]+=10; 
			}
			if(up)
			{
			 y[0]-=10; 
			}
			if(down)
			{
			 y[0]+=10; 
			}
		}

		if(y[0]>191)			// serva kontrollimine, game lopetamine
		{
		 y[0]=191;
		 game=3;
		}
		if(y[0]<1)
		{ 
		 y[0]=1;
		 game=3;
		}
		if(x[0]>191)
		{
		 x[0]=191;
		 game=3;
		}
		if(x[0]<1)
		{
		 x[0]=1;
		 game=3;
		}

		if (game==3)
		{ 
			if (arv <(1500/tase)) 
			{
			   arv++; 
			} 
			else 
			{ 
			   arv=0;
			   game=1;
			   repaint();
			   setTime.stop(); 
			} 
		}

		repaint();
		try
		{
		   setTime.sleep(tase);					// tase defineeritud boolean actionis, (mängu kiirus)
		}
		catch(InterruptedException e){}
	}
}

public void locateRandom(int nurk)
{
	suund=(int)(Math.random()*20);
	x[nurk]=((suund*10)+1) ;					// pöördenurk
	suund=(int)(Math.random()*20);
	y[nurk]=((suund*10)+1);
	n++;
}

public boolean keyDown(Event e, int key) 
{
	if ((key == Event.LEFT) &&(!right))
	{
	   left = true; 
	   up = false; 
	   down = false;
	   if(!algus)
	      algus=true;
	}
	if ((key == Event.RIGHT) && (!left))
	{
	   right = true; 
	   up = false; 
	   down = false;
	   if(!algus)
	      algus=true;
	}
	if ((key == Event.UP) && (!down))
	{ 
	   up = true; 
	   right = false; 
	   left = false;
	   if(!algus)
	      algus=true;
	}
	if ((key == Event.DOWN) && (!up))
	{
	   down = true; 
	   right = false; 
	   left = false;
	   if(!algus)
	      algus=true;
	}
	return true;
}

public boolean action(Event event, Object obj)
{
	tempo = (String) obj;

	if(tempo.equals("Tase 1"))
	{
		lisa=5;
		tase=150;
		setTime = new Thread(this);
		setTime.start();
		return true;
	}
	
	if(tempo.equals("Tase 2"))				// siin on bug (liigub läbi)!!!!!!!!!!!!!!!!!!!!
	{
		lisa=10;
		tase=100;
		setTime = new Thread(this);
		setTime.start();
		return true;
	}

	if(tempo.equals("Tase 3"))				
	{
		lisa=15;
		tase=60;
		setTime = new Thread(this);
		setTime.start();
		return true;
	}


	return false;
}                      


}