//This program was written by Michelle Koberlein and Naomi Rivera
//The code is a little bit crazy, but it was our first JAVA applet. 
//The applets palys the game Simon.  I'm sure everyone remembers Simon
//If not, just check out our html page for directions.
//I hope everyone enjoys this game.

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


public class Simon extends Applet {
    myPanel panel1;
    myPanel panel2;
    myPanel panel3;
    myPanel panel4;
    Canvas swatch1,swatch2,swatch3,swatch4;
    int [] sequence = new int[50];
    Random myRandom = new Random();   
    boolean correctMove = true;
    int Passes=0;
    int m = -1;

    public void init(){
        setLayout(new GridLayout(3,1,10,10));
        panel1 = new myPanel(this,Color.red,0);
        panel2 = new myPanel(this,Color.green,1);
        panel3 = new myPanel(this,Color.yellow,2);
        panel4 = new myPanel(this,Color.blue,3); 
    
        add(panel1);
        add(panel2);
        add(panel3);
        add(panel4);
        add(new Button("Begin"));
     } // void init

    
    public boolean action(Event e, Object arg){
        if (e.target instanceof Button)
            RandomPanel(1);
        else
           if(checkSequence());   
        return true;
    }  //boolean action    


    // RandomPanel take an int which is the number of times it chosen color
    //should blink.  It then generates a random number that gets sent to 
    //PickPanel.  It also stores the generated number in an array to be
    //checked later.
    public void RandomPanel (int NumberBlinks){
        int PickedPanel=0;
        int i; 
        Passes = NumberBlinks;
        boolean condition;
            for (i=0; i<Passes; i++){
	        PickedPanel = myRandom.nextInt();
                PickedPanel = PickedPanel % 4; 
                if (PickedPanel < 0)
                    PickedPanel =PickedPanel * (-1);
                PickPanel(PickedPanel);
                sequence[i]=PickedPanel;
            } //for
                
            showStatus("NOW IT'S YOUR TURN");
    }  //RandomPanel         

    
   //PickPanel has a switch statement that calls MakeBlink.  This is the method 
   //to make the squares link.
    public void PickPanel(int r){
        int temp1;
        temp1 = r;
        switch (temp1){
                case 0:
                  panel1.MakeBlink(0);  
                  break;
 
                case 1:
                    panel2.MakeBlink(1);
                    break;           

                case 2:
                    panel3.MakeBlink(2);
                    break; 

                case 3:
                    panel4.MakeBlink(3);
                    break; 

        }//switch         

    }  //void PickColor

   //checkSequence compares the square clicked on by the player to the 
   //number in the array (associated with the correct color) 
   public boolean checkSequence(){
       m = m +1;
          if(this.panel1.touched1){
	      this.panel1.touched1 = false;
	      if(sequence[m] != 0)
	      {
		correctMove = false;
		showStatus("Wrong answer");
	      }
              else showStatus("CORRECT");
	   }
          if(this.panel2.touched2){
              this.panel2.touched2 = false;
              if(sequence[m] != 1)
              {
                correctMove = false; 
                showStatus("Wrong answer");
              }
	      else showStatus("CORRECT");
           }
          if(this.panel3.touched3){
              this.panel3.touched3 = false;
              if(sequence[m] != 2)
              {
                correctMove = false; 
                showStatus("Wrong answer");
              }
              else showStatus("CORRECT");
           }
          if(this.panel4.touched4){
              this.panel4.touched4 = false;
              if(sequence[m] != 3)
              {
                correctMove = false; 
                showStatus("Wrong answer");
              }
              else showStatus("CORRECT");
           } 
          if (correctMove == false)
              showStatus("GAME OVER, CLICK BEGIN TO SATRT AGAIN");
          if (m == Passes-1 && correctMove!=false){
              m=-1;	
              Passes= Passes + 1;
              for (int i=0; i<4000; i++);
                  showStatus("Now it's the computers turn");
              RandomPanel(Passes);
           }  // end if 
          if (correctMove == false){
              m=-1;
              correctMove = true;
           }
           return(correctMove);

      }  //boolean action    




}  //class Simon     



class myPanel extends Panel{
    Canvas swatch;
    Simon myParent;
    Color myColor;
    int number=0;
    int i;
    int touched;
    int test = -1; 
    boolean touched1 = false;
    boolean touched2 = false;
    boolean touched3 = false;
    boolean touched4 = false;
   
    
    myPanel(Simon parent,Color color,int index){
        myParent = parent;   
        myColor = color;
        swatch = new Canvas();
        swatch.setBackground(myColor);
        add(swatch);
        number = index;
        this.setLayout(new GridLayout(1,1)); 
    }  //my panel


    //This method recognizes when a square is touched by the player and calls
    //checkSequence to see if it is the correct square.
    public boolean handleEvent(Event e){
   
        if (e.id == Event.MOUSE_DOWN){
            if (number == 0){
                for (i=0; i<1000; i++)
                swatch.setBackground(Color.black);
               
                for (i=0; i<1000; i++)
	        swatch.setBackground(Color.red);
 		myParent.panel1.touched1 = true;
            }   //if
        else if (number == 1){
                 for (i=0; i<1000; i++)
                 swatch.setBackground(Color.black);
                 for (i=0; i<1000; i++) 
	         swatch.setBackground(Color.green);
  		 myParent.panel2.touched2 = true;
            }  //if
        else if (number == 2){
                 for (i=0; i<1000; i++)
                 swatch.setBackground(Color.black);
                 for (i=0; i<1000; i++)
	         swatch.setBackground(Color.yellow);
		 myParent.panel3.touched3 = true;
            }  // if
        else if (number == 3){
                 for (i=0; i<1000; i++)
                 swatch.setBackground(Color.black);
                 for (i=0; i<1000; i++)   
	         swatch.setBackground(Color.blue);
                 myParent.panel4.touched4 = true;  
            }  //if
       
	myParent.checkSequence();  
        }  // end if

       return(true);

    }  //handleEvent
       
    // This method makes the squares blink when the computer generates a random
    //number
    public void MakeBlink (int blinks){
            int temp;
        temp = blinks;
        int i; 
        switch (temp){
             case 0:{
                    for (i=0; i<1000; i++)
                         swatch.setBackground(Color.black);
                         for (i=0; i<1000; i++)
	                 swatch.setBackground(Color.red); 
                         break; 

             }  //case 0

             case 1:{
                    for (i=0; i<1000; i++)
                         swatch.setBackground(Color.black); 
                         for (i=0; i<1000; i++)
	                 swatch.setBackground(Color.green);
                         break;
  
            }  //case 1
        
            case 2:{
                    for (i=0; i<1000; i++)
                         swatch.setBackground(Color.black);
                         for (i=0; i<1000; i++)
                         swatch.setBackground(Color.yellow);
                         break; 
            }  //case 2
        
            case 3:{
                    for (i=0; i<1000; i++)
                         swatch.setBackground(Color.black);
                         for (i=0; i<1000; i++);
                         swatch.setBackground(Color.blue);
                         break;
            }  //case3
        
        }  //switch    

    }  //MakeBlink

}  // myPanel