Game.java

/**
 * JBoss, Home of Professional Open Source
 * Copyright 2009, Red Hat, Inc. and/or its affiliates, and individual
 * contributors by the @authors tag. See the copyright.txt in the
 * distribution for a full listing of individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jboss.weld.environment.se.example.numberguess;

import javax.annotation.PostConstruct;
import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;

/**
 * This class contains the pure logic of the Number Guess game. On
 * initialization a random number will be selected. Multiple "guesses" as to
 * what that number might be can be made using the 'check' method. The user wins
 * if they can guess the selected number in the alloted amount of tries.
 *
 * @author Peter Royle
 */
@ApplicationScoped
public class Game {
    public static final int MAX_NUM_GUESSES = 10;

    private Integer number;
    private int guess = 0;
    private int smallest = 0;

    @Inject
    @MaxNumber
    private int maxNumber;

    private int biggest;
    private int remainingGuesses = MAX_NUM_GUESSES;
    private boolean validNumberRange = true;

    @Inject
    Generator rndGenerator;

    public Game() {
    }

    public int getNumber() {
        return number;
    }

    public int getGuess() {
        return guess;
    }

    public void setGuess(int guess) {
        this.guess = guess;
    }

    public int getSmallest() {
        return smallest;
    }

    public int getBiggest() {
        return biggest;
    }

    public int getRemainingGuesses() {
        return remainingGuesses;
    }

    public boolean isValidNumberRange() {
        return validNumberRange;
    }

    public boolean isGameWon() {
        return guess == number;
    }

    public boolean isGameLost() {
        return guess != number && remainingGuesses <= 0;
    }

    public boolean check() {
        boolean result = false;

        if (checkNewNumberRangeIsValid()) {
            if (guess > number) {
                biggest = guess - 1;
            }

            if (guess < number) {
                smallest = guess + 1;
            }

            if (guess == number) {
                result = true;
            }

            remainingGuesses--;
        }

        return result;
    }

    private boolean checkNewNumberRangeIsValid() {
        return validNumberRange = ((guess >= smallest) && (guess <= biggest));
    }

    @PostConstruct
    public void reset() {
        this.smallest = 0;
        this.guess = 0;
        this.remainingGuesses = 10;
        this.biggest = maxNumber;
        this.number = rndGenerator.next();
        System.out.println("psst! the number is " + this.number);
    }
}