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Learning C++ by creating games with UE4

By : William Sherif
Book Image

Learning C++ by creating games with UE4

By: William Sherif

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Learning C++ by creating games with UE4
William Sherif
Feb, 2015 | 342 pages
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Table of Contents (19 chapters)
Learning C++ by Creating Games with UE4
Learning C++ by Creating Games with UE4
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Coding with C++
Coding with C++
Setting up our project
Creating your first C++ program
What is building and compiling?
Summary
2
Variables and Memory
Variables and Memory
Variables
Summary
3
If, Else, and Switch
If, Else, and Switch
Branching
Controlling the flow of your program
Using logical operators
Our first example with Unreal Engine
Summary
4
Looping
Looping
The while loop
The do/while loop
The for loop
Looping with Unreal Engine
Summary
5
Functions and Macros
Functions and Macros
Functions
An example of a <cmath> library function – sqrt()
Writing our own functions
Functions with arguments
Functions that return values
Variables, revisited
Macros
Macros with arguments
Summary
6
Objects, Classes, and Inheritance
Objects, Classes, and Inheritance
struct objects
class versus struct
Getters and setters
Constructors and destructors
Class inheritance
Multiple inheritance
Putting your classes into headers
Summary
7
Dynamic Memory Allocation
Dynamic Memory Allocation
Dynamic memory allocation
Regular arrays
C++ style dynamic size arrays (new[] and delete[])
Dynamic C-style arrays
Summary
8
Actors and Pawns
Actors and Pawns
Actors versus pawns
Creating a world to put your actors in
The UE4 editor
Starting from scratch
Adding an actor to the scene
Creating a player entity
Writing C++ code that controls the game's character
Creating non-player character entities
Displaying a quote from each NPC dialog box
Summary
9
Templates and Commonly Used Containers
Templates and Commonly Used Containers
Debugging the output in UE4
UE4's TArray<T>
TSet<T>
TMap<T, S>
C++ STL versions of commonly used containers
Summary
10
Inventory System and Pickup Items
Inventory System and Pickup Items
Declaring the backpack
Base class PickupItem
Drawing the player inventory
Summary
11
Monsters
Monsters
Landscape
Monsters
Monster attacks on the player
Summary
12
Spell Book
Spell Book
The particle systems
Spell class actor
Attaching right mouse click to cast spell
Creating other spells
Summary
Index
Index

The UE4 editor

We will explore the UE4 editor here. We'll start with the controls since it is important to know how to navigate in Unreal.

Editor controls

If you've never used a 3D editor before, the controls can be quite hard to learn. These are the basic navigation controls while in edit mode:

  • Use the arrow keys to move around in the scene

  • Press Page Up or Page Down to go up and down vertically

  • Left mouse click + drag it left or right to change the direction you are facing

  • Left mouse click + drag it up or down to dolly (move the camera forward and backward, same as pressing up/down arrow keys)

  • Right mouse click + drag to change the direction you are facing

  • Middle mouse click + drag to pan the view

  • Right mouse click and the W, A, S, and D keys to move around the scene

Play mode controls

Click on the Play button in the bar at the top, as shown in the following screenshot. This will launch the play mode.

Once you click on the Play button, the controls change. In play mode, the controls are as follows...

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