EBK STARTING OUT WITH PROGRAMMING LOGIC
4th Edition
ISBN: 9780100659384
Author: GADDIS
Publisher: YUZU
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Chapter 4.7, Problem 4.27CP
Explanation of Solution
Boolean variables:
Boolean variables are referred as “bool”, commonly used as flags which gives intimation whether the condition exists.
- A Boolean variable can reference any of the two values, either “True” or “False”.
- Flag is used to remember something or leaves a sign for the other parts of the program.
- The condition does not exist when the flag is set to false.
- The condition exists when the flag is set to true...
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Add a timer in the following code.
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private Timer timer; private long elapsedTime;
public GameGUI(Labyrinth labyrinth, Player player, Dragon dragon) { this.labyrinth = labyrinth; this.player = player; this.dragon = dragon; String playerName = JOptionPane.showInputDialog("Enter your name:"); player.setName(playerName); elapsedTime = 0; timer = new Timer(1000, e -> { elapsedTime++; repaint(); }); timer.start();
}
@Override protected void paintComponent(Graphics g) { super.paintComponent(g); int cellSize = Math.min(getWidth() / labyrinth.getSize(), getHeight() / labyrinth.getSize());}
Change the following code so that when player wins the game, the game continues by creating new GameGUI with the same player. However the player's starting position is same, everything else should be reseted.
public static void main(String[] args) { Labyrinth labyrinth = new Labyrinth(10); Player player = new Player(9, 0); Random rand = new Random(); Dragon dragon = new Dragon(rand.nextInt(10), 9); JFrame frame = new JFrame("Labyrinth Game"); GameGUI gui = new GameGUI(labyrinth, player, dragon);
frame.setLayout(new BorderLayout()); frame.setSize(600, 600); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(gui, BorderLayout.CENTER); frame.pack(); frame.setResizable(false); frame.setVisible(true); }
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private Timer timer; private long…
Create a menu item which restarts the game. Also add a timer, which counts the elapsed time since the start of the game level.
When the restart is pressed, the restarted game should ask the player' name (in the GameGUI constructor) and set the score of player to 0 (player.setScore(0)), and the timer should restart again. And create a logic so that if the player loses his life (checkGame if the condition is false), then save this number together with his name into two variables. And display two buttons where one quits the game altogether (System.exit(0)) and the other restarts the game.
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon;
private final ImageIcon playerIcon = new ImageIcon("data/images/player.png"); private final ImageIcon dragonIcon = new ImageIcon("data/images/dragon.png"); private final ImageIcon wallIcon = new ImageIcon("data/images/wall.png"); private final ImageIcon…
Chapter 4 Solutions
EBK STARTING OUT WITH PROGRAMMING LOGIC
Ch. 4.1 - What is a control structure?Ch. 4.1 - What is a decision structure?Ch. 4.1 - Prob. 4.3CPCh. 4.1 - Prob. 4.4CPCh. 4.1 - What types of relationships between values can you...Ch. 4.1 - Write a pseudocode If-Then statement that assigns...Ch. 4.1 - Write a pseudocode If-Then statement that assigns...Ch. 4.2 - Prob. 4.8CPCh. 4.2 - What statement do you use in pseudocode to write a...Ch. 4.2 - When you write an If-Then-Else statement, under...
Ch. 4.3 - If the following pseudocode were an actual...Ch. 4.3 - If the following pseudocode were an actual...Ch. 4.4 - Prob. 4.13CPCh. 4.4 - What statement do you use in pseudocode to write a...Ch. 4.4 - When you write an If-Then-Else statement, under...Ch. 4.4 - Convert the following pseudocode to an...Ch. 4.5 - Prob. 4.17CPCh. 4.5 - How do you write a multiple alternative decision...Ch. 4.5 - What does the case structure test, in order to...Ch. 4.5 - You need to write a multiple alternative decision...Ch. 4.6 - Prob. 4.21CPCh. 4.6 - Prob. 4.22CPCh. 4.6 - Assume the variables a = 2, b = 4, and c = 6....Ch. 4.6 - Explain how short-circuit evaluation works with...Ch. 4.6 - Prob. 4.25CPCh. 4.6 - Write an If-Then statement that displays the...Ch. 4.7 - Prob. 4.27CPCh. 4.7 - What is a flag variable?Ch. 4 - A __ structure can execute a set of statements...Ch. 4 - A __ structure provides one alternative path of...Ch. 4 - In pseudocode, the If-Then statement is an example...Ch. 4 - A(n) __ expression has a value of either true or...Ch. 4 - The symbols,, and== are all __ operators. a....Ch. 4 - A(n) __ structure tests a condition and then takes...Ch. 4 - You use a(n) __ statement in pseudocode to write a...Ch. 4 - You use a(n) _________ statement in pseudocode to...Ch. 4 - A ______ structure allows you to test the value of...Ch. 4 - Prob. 10MCCh. 4 - AND, OR, and NOT are _____ operators. a....Ch. 4 - A compound Boolean expression created with the...Ch. 4 - A compound Boolean expression created with the...Ch. 4 - The ____ operator takes a Boolean expression as...Ch. 4 - A ________ is a Boolean variable that signals when...Ch. 4 - Prob. 1TFCh. 4 - A program can be made of only one type of control...Ch. 4 - A single alternative decision structure tests a...Ch. 4 - A decision structure can be nested inside another...Ch. 4 - A compound Boolean expression created with the AND...Ch. 4 - Explain what is meant by the term conditionally...Ch. 4 - You need to test a condition and then execute one...Ch. 4 - If you need to test the value of a variable and...Ch. 4 - Briefly describe how the AND operator works.Ch. 4 - Briefly describe how the OR operator works.Ch. 4 - Prob. 6SACh. 4 - What is a flag and how does it work?Ch. 4 - Design an If-Then statement (or a flowchart with a...Ch. 4 - Design an If- Then statement (or a flowchart with...Ch. 4 - Design an If- Then-Else statement (or a flowchart...Ch. 4 - The following pseudocode contains several nested...Ch. 4 - Design nested decision structures that perform the...Ch. 4 - Rewrite the following If-Then-Else If statement as...Ch. 4 - Design an If-Then-Else statement (or a flowchart...Ch. 4 - Design an If-Then-Else statement (or a flowchart...Ch. 4 - Design a case structure that tests the month...Ch. 4 - Write an If-Then statement that sets the variable...Ch. 4 - Part of the following pseudocode is incompatible...Ch. 4 - Prob. 2DECh. 4 - Prob. 3DECh. 4 - Roman Numerals Design a program that prompts the...Ch. 4 - Areas of Rectangles The area of a rectangle is the...Ch. 4 - Mass and Weight Scientists measure an objects mass...Ch. 4 - Magic Dates The date June 10, 1960, is special...Ch. 4 - Color Mixer The colors red, blue, and yellow are...Ch. 4 - Book Club Points Serendipity Booksellers has a...Ch. 4 - Software Sales A software company sells a package...Ch. 4 - Change for a Dollar Game Design a change-counting...Ch. 4 - Shipping Charges The Fast Freight Shipping Company...Ch. 4 - Body Mass Index Program Enhancement In Programming...Ch. 4 - Time Calculator Design a program that asks the...
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