import jan.*;
import java.awt.*;

public class A2P1 extends Biotope implements Executable {

  public static void main (String arguments []) {main ("A2P1", "mode=draw");}

  
  String values[]={"a","2","3","4","5","6","7","8","9","10","j","q","k"};
  String suits[]={"d","h","s","c"};    
  Image pictures[];                  // declares array of type Image
  Image tempCard;                    // creates a temp Image
  int cardNum=0;                     
  int xCoord=5;                      // initializes variables
  int yCoord=5; 

  public void initialize() {

	  String filenames[]=new String[values.length*suits.length];
	  for (int j=0;j<suits.length;j++){
		  for (int i=0;i<values.length;i++) {
			  filenames[cardNum]="../cards/"+suits[j]+values[i]+".gif"; 
			  cardNum++;}
	  }
	  pictures=loadPictures(filenames);
	  for (int i=0;i<pictures.length;i++) 
		  if (pictures[i]==null) message("Pictures not loaded properly.");
  }
  
  
  public void execute () {
    
	  setOrigin(xCoord,yCoord);
	  setColor(tail, transparent);
	  setAlignment(bottomRight);
	 
	  if (picturesLoaded()) {
		  message("Click to shuffle");
		  goTo(xCoord,yCoord);
		  myDisplay();
	  }
	  else
		  message("Pictures are not available.");
  }

  public void click(int x,int y) {
	  
	  clear();                      // after a click, shuffles the array
	  shuffle();					// and displays array again
	  xCoord=5;
	  yCoord=5;
	  goTo(xCoord,yCoord);
	  myDisplay();
  }

 void shuffle() {

	 for(int card=0;card<pictures.length;card++){
		 double randomnum=Math.random()*pictures.length;
		 int randomint=(int)(randomnum);
		 tempCard=pictures[card];
         pictures[card]=pictures[randomint];
		 pictures[randomint]=tempCard;
	 }
 }

  private void myDisplay() {
	  
	  for (int j=0;j<suits.length;j++) {
		  for (int i=0;i<values.length;i++) {
			  dropPicture(pictures[j*13+i]);
			  go(25);}
		  yCoord=yCoord+100;
		  goTo(xCoord,yCoord);
		  }
	  xCoord=5;
	  yCoord=5;
  }

}