/*
* LottoLogic.java
*
* Version:
* $Id$
*
* Revisions:
* $Log$
*/
import java.awt.*;
import java.util.*;
/**
* Logic for the Lotto game.
*
* @author Paul Tymann
* @author *** YOUR NAME GOES HERE ***
*
*/
public class LottoLogic {
// Constants
/**
* The number of rows in the lotto game
*/
private static final int NUM_ROWS = 7;
/**
* The number of colums in the lotto game.
*/
private static final int NUM_COLS = 7;
/**
* The total number of numbers than can be selected is given by
* NUM_ROWS * NUM_COLS
*/
private static final int MAX_NUMBERS = NUM_ROWS * NUM_COLS;
/**
* The maximum number of numbers that may be selected by a user.
*/
private static final int MAX_SELECT = 6;
/**
* The reference to the GUI interacting with the user
*/
private LottoGUI gui;
/**
* Generator for the numbers
*/
private BallBox box = new BallBox( MAX_NUMBERS );
/**
* Number of numbered buttons pressed by the user. This enables
* the logic to ensure that the user selects exactly MAX_SELECT
* numbers prior to making a draw.
*/
private int numButtonsPressed;
/**
* Construct a LottoLogic object connected to the specified
* LottoGUI object.
*
* @param gui the GUI "connected" to the user.
*/
public LottoLogic( LottoGUI gui ) {
this.gui = gui;
}
// The callbacks
/**
* "Play" the Lotto game once. Draws MAX_SELECT balls
* from a BallBox and updates the GUI.
*/
public void draw() {
// *** INSERT YOUR CODE HERE ***
int i=0;
int counter=0;
if(numButtonsPressed==MAX_SELECT){
clearTheBoard();
while(i<6){
int number=box.nextBall();
if(gui.isSelected(number)){
gui.setButtonColor(number,Color.yellow);
counter+=1;
}else gui.setButtonColor(number,Color.green);
i+=1;
}
gui.incDraws();
gui.incTotals(counter);
}
}
/**
* Clears the board and resets the statistics back to zero.
* Note that this method does not "unselect" the numbers
* the player has selected.
*/
public void reset() {
// *** INSERT YOUR CODE HERE ***
clearTheBoard();
gui.clearTotals();
}
/**
* Updates the logic when a numbered button is pressed.
*
* @param button the number of the button pressed.
*/
public void buttonPressed( int button ) {
// *** INSERT YOUR CODE HERE ***
if(gui.isSelected(button)){
gui.setSelected(button,false);
gui.setButtonColor(button,Color.lightGray);
numButtonsPressed--;
}
else
if(numButtonsPressed<MAX_SELECT){
gui.setSelected(button,true);
gui.setButtonColor(button,Color.blue);
numButtonsPressed+=1;
}
}
/**
* Prepare the logic for another draw. Resets the unselected
* buttons back to their original state. The selected buttons
* are changed back to the "selected" color.
*/
public void clearTheBoard() {
numButtonsPressed = 0;
// Reset the ball box for another draw
box.refill();
// Step through each of the numbered buttons. Color the
// unselected buttons light gray and the selected buttons
// blue.
for ( int i = 0; i < MAX_NUMBERS; i++ ) {
if ( gui.isSelected( i ) ) {
gui.setButtonColor( i, Color.blue );
numButtonsPressed++;
}
else {
gui.setButtonColor( i, Color.lightGray );
}
}
}
} // LottoLogic