/*       Hangman Game

    (with some stick figure code written by Barry LaVergne)
*/

import java.awt.*;
import java.awt.event.*;
import java.awt.Graphics;
import javax.swing.*;

public class hangman extends JFrame
{
  private Graphics brush;
  private Image canvas;
  private Graphics display;

    /////////////////////
  private String[] vocab;
  private int wrongguesses;  

  public void setvocab()
    {
	vocab = new String[10];
	vocab[0] = "microprocessor";
	vocab[1] = "internet";
	vocab[2] = "computer";
	vocab[3] = "mathematics";
	vocab[4] = "philosophy";
	vocab[5] = "engineering";
	vocab[6] = "library";
	vocab[7] = "interface";
	vocab[8] = "sleepyhead";
	vocab[9] = "thanksgiving";
    }

  public String pickword()
    {
	int i = (int)(Math.random() * vocab.length);
	return vocab[i];
    }

  public void play()
    {   int i = 0; // generic loop counter
        int guessed;
        int oldguessed = 0;
	String word;
	String input;
	boolean[] G;
	word = pickword();
	guessed = 0;
	wrongguesses = 0;
        int n = word.length();  // convenience
	G = new boolean[n];
	for(i=0;i<n;i++) { G[i] = false; }
        displayWord(word,G);  repaint();
        while (wrongguesses<6 && guessed<n)
	    {
		input = JOptionPane.showInputDialog(
					 "guess a letter:");
		oldguessed = guessed;
		for(i=0;i<n;i++)
		    {
			if (word.charAt(i)==input.charAt(0))
			    {
				G[i] = true;
				guessed++;
			    }
		    }
		if (oldguessed==guessed) wrongguesses++;
		displayWord(word,G); repaint();
	    } // main loop
	if (wrongguesses==6) brush.drawString("You Lose!",350,100);
	else brush.drawString("You win!",350,100);
	repaint();
    }

public void displayWord(String w,boolean[] G)
    {
	int i = 0; // loop counter
	int x = 100;
	int y = 550; // screen coordinates;
	while (i<G.length)
	    {
		if (G[i]) brush.drawString(""+w.charAt(i),x,y);
		   else brush.drawString("_",x,y);
		x = x +25;
		i++;
	    }
    }  // displayWord



  public hangman()  // constructor
    { 
       setSize(800,650);
       setVisible(true);
       display = this.getGraphics();
       canvas = createImage(800,600); // double buffer
       brush = canvas.getGraphics();
       brush.setColor(Color.blue);   
       brush.setColor(Color.green);   // clear 
       brush.fillRect(0,0,800,600);   // with green background
       brush.setFont(new Font("Serif",Font.BOLD,18));
       draw();
       setvocab();
       play();
    }

  public void paint(Graphics g) 
  { super.paint(g);
    draw(); // draws the stick figure
    display.drawImage(canvas,0,50,null);
  }  // overrides auto-update

  public static void main(String[] args) // needed for application
  {
    hangman session  = new hangman();
    session.addWindowListener(new WindowAdapter() {
              public void windowClosing(WindowEvent e) {System.exit(0);} });
  }

   private void drawCircle(int cx, int cy, int radius, int fswitch)
   { 
       if (fswitch == 1) {
	   brush.fillOval(cx-radius,cy-radius,2*radius,2*radius);
       } else {
	   brush.drawOval(cx-radius,cy-radius,2*radius,2*radius);
       }
   }

    // draws stickfigure
   public void draw()
    {
	int x = 100, y=300, scale=40;
	Color c=Color.red;
	String pArms="up";
	int armModifier; int mouthModifier; int lipModifier;
	int dScale; int hScale; int qScale; int eScale;
	dScale = scale*2;
	hScale = scale/2;
	qScale = scale/4;
	eScale = scale/8;

	//ARM POSITION CODE
	if (pArms == "up") {
	    armModifier = 0;
	} else if (pArms == "down") {
	    armModifier = scale;
	} else {
	    armModifier = 0; //just in case
	}

	// draw hanging stand:
	brush.setColor(Color.blue);
	brush.drawLine(x,y-(3*scale/2),x,y-(5*scale/2));
	brush.drawLine(x,y-(5*scale/2),x+(2*scale),y-(5*scale/2));
	brush.drawLine(x+(2*scale),y-(5*scale/2),x+(2*scale),y+(3*scale));
	brush.drawLine(x+(3*scale/2),y+(3*scale),x+(5*scale/2),y+(3*scale));

	//Stick figure
	brush.setColor(c);
	
	if (wrongguesses>0) drawCircle(x,y-scale,hScale,0); //head
	if (wrongguesses>1) brush.drawLine(x,y,x,y-hScale); //neck
	if (wrongguesses>1) brush.drawLine(x,y,x,y+scale);  //abdomen
	if (wrongguesses>2) brush.drawLine(x,y,x-scale,(y-hScale)+armModifier); //l arm
	if (wrongguesses>3) brush.drawLine(x,y,x+scale,(y-hScale)+armModifier); //r arm
	if (wrongguesses>4) brush.drawLine(x,y+scale,x-scale,y+dScale); //l leg
	if (wrongguesses>5) brush.drawLine(x,y+scale,x+scale,y+dScale); //r leg
    }  // end drawfigure method

} // class lab3