Book Image

C++ Game Development Cookbook

By : Druhin Mukherjee
Book Image

C++ Game Development Cookbook

By: Druhin Mukherjee

Overview of this book

<p>C++ is one of the preferred languages for game development as it supports a variety of coding styles that provides low-level access to the system. C++ is still used as a preferred game programming language by many as it gives game programmers control of the entire architecture, including memory patterns and usage. However, there is little information available on how to harness the advanced features of C++ to build robust games.</p> <p>This book will teach you techniques to develop logic and game code using C++. The primary goal of this book is to teach you to create high-quality games using C++ game programming scripts and techniques, regardless of the library or game engine you use. It will show you how to make use of the object-oriented capabilities of C++ so you can write well-structured and powerful games of any genre. The book also explores important areas such as physics programming and audio programming, and gives you other useful tips and tricks to improve your code.</p> <p>By the end of this book, you will be competent in game programming using C++, and will be able to develop your own games in C++.</p>
Table of Contents (20 chapters)
C++ Game Development Cookbook
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Using polymorphism to reuse code


Polymorphism means having several forms. Typically, we use polymorphism when there is a hierarchy of classes and they are related in some way. We generally achieve this level of relation by using inheritance.

Getting ready

You need to have a working copy of Visual Studio installed on your Windows machine.

How to do it…

In this recipe, we will see how we can use the same function and override it with different functionalities based on our needs. Also, we will see how we can share values across base and derived classes:

  1. Open Visual Studio.

  2. Create a new C++ project.

  3. Select Win32 Console Application.

  4. Add a source file called Source.cpp and three header files called Enemy.h, Dragon.h, and Soldier.h.

  5. Add the following lines of code to Enemy.h:

    #ifndef _ENEMY_H
    #define _ENEMY_H
    
    #include <iostream>
    
    using namespace std;
    
    class CEnemy {
    protected:
      int m_ihealth,m_iarmourValue;
    public:
      CEnemy(int ihealth, int iarmourValue) : m_ihealth(ihealth), m_iarmourValue(iarmourValue...