Unreal Engine 4 Scripting with C++ Cookbook

封面

版权页

Credits

About the Authors

About the Reviewer

www.PacktPub.com

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Preface

What this book covers

What you need for this book

Who this book is for

Sections

Conventions

Reader feedback

Customer support

Chapter 1. UE4 Development Tools

Introduction

Installing Visual Studio

Creating and building your first C++ project in Visual Studio

Changing the code font and color in Visual Studio

Extension – changing the color theme in Visual Studio

Formatting your code (Autocomplete settings) in Visual Studio

Shortcut keys in Visual Studio

Extended mouse usage in Visual Studio

UE4 – installation

UE4 – first project

UE4 – creating your first level

UE4 – logging with UE_LOG

UE4 – making an FString from FStrings and other variables

Project management on GitHub – getting your Source Control

Project management on GitHub – using the Issue Tracker

Project management on VisualStudio.com – managing the tasks in your project

Project management on VisualStudio.com – constructing user stories and tasks

Chapter 2. Creating Classes

Introduction

Making a UCLASS – deriving from UObject

Creating a user-editable UPROPERTY

Accessing a UPROPERTY from Blueprints

Specifying a UCLASS as the type of a UPROPERTY

Creating a Blueprint from your custom UCLASS

Instantiating UObject-derived classes (ConstructObject < > and NewObject < >)

Destroying UObject-derived classes

Creating a USTRUCT

Creating a UENUM( )

Creating a UFUNCTION

Chapter 3. Memory Management and Smart Pointers

Introduction

Unmanaged memory – using malloc( )/free( )

Unmanaged memory – using new/delete

Managed memory – using NewObject< > and ConstructObject< >

Managed memory – deallocating memory

Managed memory – smart pointers (TSharedPtr TWeakPtr TAutoPtr) to track an object

Using TScopedPointer to track an object

Unreal's garbage collection system and UPROPERTY( )

Forcing garbage collection

Breakpoints and stepping through code

Finding bugs and using call stacks

Using the Profiler to identify hot spots

Chapter 4. Actors and Components

Introduction

Creating a custom Actor in C++

Instantiating an Actor using SpawnActor

Destroying an Actor using Destroy and a Timer

Destroying an Actor after a delay using SetLifeSpan

Implementing the Actor functionality by composition

Loading assets into components using FObjectFinder

Implementing the Actor functionality by inheritance

Attaching components to create a hierarchy

Creating a custom Actor Component

Creating a custom Scene Component

Creating a custom Primitive Component

Creating an InventoryComponent for an RPG

Creating an OrbitingMovement Component

Creating a building that spawns units

Chapter 5. Handling Events and Delegates

Handling events implemented via virtual functions

Creating a delegate that is bound to a UFUNCTION

Unregistering a delegate

Creating a delegate that takes input parameters

Passing payload data with a delegate binding

Creating a multicast delegate

Creating a custom Event

Creating a Time of Day handler

Creating a respawning pickup for an First Person Shooter

Chapter 6. Input and Collision

Introduction

Axis Mappings – keyboard mouse and gamepad directional input for an FPS character

Axis Mappings – normalized input

Action Mappings – one button responses for an FPS character

Adding Axis and Action Mappings from C++

Mouse UI input handling

UMG keyboard UI shortcut keys

Collision – letting objects pass through one another using Ignore

Collision – picking up objects using Overlap

Collision – preventing interpenetration using Block

Chapter 7. Communication between Classes and Interfaces

Introduction

Creating a UInterface

Implementing a UInterface on an object

Checking if a class implements a UInterface