Starting Out with C++: Early Objects (9th Edition)
9th Edition
ISBN: 9780134400242
Author: Tony Gaddis, Judy Walters, Godfrey Muganda
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 5RQE
A(n) _____ function is not a member of a class, but has access to the private members of the class.
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Change the following code so that there is always at least one way to get from the left corner to the top right, but the labyrinth is still randomized.
The player starts at the bottom left corner of the labyrinth. He has to get to the top right corner of the labyrinth as fast he can, avoiding a meeting with the evil dragon. Take care that the player and the dragon cannot start off on walls. Also the dragon starts off from a randomly chosen position
public class Labyrinth { private final int size; private final Cell[][] grid;
public Labyrinth(int size) { this.size = size; this.grid = new Cell[size][size]; generateLabyrinth(); }
private void generateLabyrinth() { Random rand = new Random(); for (int i = 0; i < size; i++) { for (int j = 0; j < size; j++) { // Randomly create walls and paths grid[i][j] = new Cell(rand.nextBoolean()); } } // Ensure start and end are…
Change the following code so that it checks the following 3 conditions:
1. there is no space between each cells (imgs)
2. even if it is resized, the components wouldn't disappear
3. The GameGUI JPanel takes all the JFrame space, so that there shouldn't be extra space appearing in the frame other than the game.
Main():
Labyrinth labyrinth = new Labyrinth(10);
Player player = new Player(9, 0); Dragon dragon = new Dragon(9, 9);
JFrame frame = new JFrame("Labyrinth Game"); GameGUI gui = new GameGUI(labyrinth, player, dragon);
frame.add(gui); frame.setSize(600, 600); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true);
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; //labyrinth, player, dragon are just public classes
private final ImageIcon playerIcon = new ImageIcon("data/images/player.png");…
Make the following game user friendly with GUI, with some simple graphics. The GUI should be in another seperate class, with some ImageIcon, and Game class should be added into the pane.
The following code works as this: The objective of the player is to escape from this labyrinth. The player starts at the bottom left corner of the labyrinth. He has to get to the top right corner of the labyrinth as fast he can, avoiding a meeting with the evil dragon. The player can move only in four directions: left, right, up or down. There are several escape paths in all labyrinths. The player’s character should be able to moved with the well known WASD keyboard buttons. If the dragon gets to a neighboring field of the player, then the player dies. Because it is dark in the labyrinth, the player can see only the neighboring fields at a distance of 3 units.
Cell Class:
public class Cell { private boolean isWall; public Cell(boolean isWall) { this.isWall = isWall; } public boolean isWall() { return…
Chapter 11 Solutions
Starting Out with C++: Early Objects (9th Edition)
Ch. 11.3 - What is the difference between an instance member...Ch. 11.3 - Static member variables are declared inside the...Ch. 11.3 - Does a static member variable come into existence...Ch. 11.3 - What limitation does a static member function...Ch. 11.3 - What action is possible with a static member...Ch. 11.3 - If class X declares function f as a friend, does...Ch. 11.3 - Suppose that class Y is a friend of class X,...Ch. 11.5 - Briefly describe what is meant by memberwise...Ch. 11.5 - Prob. 11.9CPCh. 11.5 - Prob. 11.10CP
Ch. 11.5 - When is a copy constructor called?Ch. 11.5 - How does the compiler know that a member function...Ch. 11.5 - What action is performed by a classs default copy...Ch. 11.6 - Assume there is a class named Pet. Write the...Ch. 11.6 - Assume that dog and cat are instances of the Pet...Ch. 11.6 - What is the disadvantage of an overloaded ...Ch. 11.6 - Prob. 11.17CPCh. 11.6 - Prob. 11.18CPCh. 11.6 - Assume there is a class named Animal, which...Ch. 11.6 - Prob. 11.20CPCh. 11.6 - Describe the values that should he returned from...Ch. 11.6 - Prob. 11.22CPCh. 11.6 - What type of object should an overloaded operator...Ch. 11.6 - Prob. 11.24CPCh. 11.6 - If an overloaded or operator accesses a private...Ch. 11.6 - Prob. 11.26CPCh. 11.6 - When overloading a binary operator such as or as...Ch. 11.6 - Explain why overloaded prefix and postfix and ...Ch. 11.6 - Prob. 11.29CPCh. 11.6 - Overload the function call operator ( ) (int i,...Ch. 11.8 - Prob. 11.31CPCh. 11.8 - How is the type declaration of an r value...Ch. 11.8 - Prob. 11.33CPCh. 11.8 - Prob. 11.34CPCh. 11.8 - Which operator must be overloaded in a class...Ch. 11.8 - Prob. 11.36CPCh. 11.10 - What arc the benefits of having operator functions...Ch. 11.10 - Prob. 11.38CPCh. 11.10 - Assume that there is a class named BlackBox. Write...Ch. 11.10 - Assume there are two classes, Big and Smal1.Write...Ch. 11.13 - What type of relationship between classes is...Ch. 11.13 - Why does it make sense to think of a base class as...Ch. 11.13 - What is a base class access specification?Ch. 11.13 - Think of an example of two classes where one class...Ch. 11.13 - What is the difference between private members and...Ch. 11.13 - What is the difference between member access...Ch. 11.13 - Suppose a program has the following class...Ch. 11.14 - What is the reason that base class constructors...Ch. 11.14 - Why do you think the arguments to a base class...Ch. 11.14 - Passing arguments to base classes constructors...Ch. 11.14 - What will the following program display? #include...Ch. 11.14 - What will the following program display? #include...Ch. 11 - If a member variable is declared _____, all...Ch. 11 - Static member variables are defined _____ the...Ch. 11 - A(n) _____ member function cannot access any...Ch. 11 - A static member function may be called _____ any...Ch. 11 - A(n) _____ function is not a member of a class,...Ch. 11 - A(n) _____ tells the compiler that a specific...Ch. 11 - _____ is the default behavior when an object is...Ch. 11 - A(n) _____ is a special constructor, called...Ch. 11 - _____ is a special built-in pointer that is...Ch. 11 - An operator may be _____ to work with a specific...Ch. 11 - When the _____ operator is overloaded, its...Ch. 11 - Making an instance of one class a member of...Ch. 11 - Object composition is useful for creating a(n)...Ch. 11 - A constructor that takes a single parameter of a...Ch. 11 - The class Stuff has both a copy constructor and an...Ch. 11 - Explain the programming steps necessary to make a...Ch. 11 - Explain the programming steps necessary to make a...Ch. 11 - Consider the following class declaration: class...Ch. 11 - Describe the difference between making a class a...Ch. 11 - What is the purpose of a forward declaration of a...Ch. 11 - Explain why memberwise assignment can cause...Ch. 11 - Explain why a classs copy constructor is called...Ch. 11 - Explain why the parameter of a copy constructor...Ch. 11 - Assume a class named Bird exists. Write the header...Ch. 11 - Assume a class named Dollars exists. Write the...Ch. 11 - Assume a class named Yen exists. Write the header...Ch. 11 - Assume a class named Length exists. Write the...Ch. 11 - Assume a class named Collection exists. Write the...Ch. 11 - Explain why a programmer would want to overload...Ch. 11 - Each of the following class declarations has...Ch. 11 - A derived class inherits the _____ of its base...Ch. 11 - The base class named in the following line of code...Ch. 11 - The derived class named in the following line of...Ch. 11 - In the following line of code, the class access...Ch. 11 - In the following line of code, the class access...Ch. 11 - Protected members of a base class are like _____...Ch. 11 - Complete the following table by filling in...Ch. 11 - Complete the following table by filling in...Ch. 11 - Complete the following table by filling in...Ch. 11 - When both a base class and a derived class have...Ch. 11 - When both a base class and a derived class have...Ch. 11 - An overridden base class function may be called by...Ch. 11 - Each of the following class declarations and/or...Ch. 11 - Soft Skills 44. Your companys software is a market...Ch. 11 - Check Writing Design a class Numbers that can be...Ch. 11 - Day of the Year Assuming that a year has 365 days,...Ch. 11 - Day of the Year Modification Modify the DayOfYear...Ch. 11 - Number of Days Worked Design a class called...Ch. 11 - Palindrome Testing A palindrome is a string that...Ch. 11 - Prob. 6PCCh. 11 - Corporate Sales A corporation has six divisions,...Ch. 11 - Prob. 8PCCh. 11 - Rational Arithmetic II Modify the class Rational...Ch. 11 - HTML Table of Names and Scores Write a class whose...Ch. 11 - Prob. 11PC
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