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Unreal Multiplayer Course - Section 2 - Menu System

In follow up to our hugely successful Complete Unreal Engine Developer course we bring you Unreal Multiplayer Mastery - as on featured on Epic's UE4 blog.

In this section we teach how to create rich UI using Unreal's UMG in C++. This project lays the foundations for creating complex menu systems for multiplayer games.

You're welcome to download, fork or do whatever else legal with all the files! The real value is in our huge, high-quality online tutorials that accompany this repo. You can check out the course here: Unreal Multiplayer Mastery

0 Introduction to Menu System

  • Overview of the section.
  • Why we need to cover UI.

1 Create a Menu Blueprint

  • Importing last section's project.
  • Creating a menu Blueprint.
  • Revision of layout.
  • Create a basic menu.

2 Accessing UI Classes in C++

  • Using the FClassFinder.
  • Finding BP_PlatfromTrigger.
  • Accessing UMG from C++.
  • Saving our menu class.

3 Load And Display UMG In C++

  • Creating an interface.
  • CreateWidget in C++.
  • Setup a MainMenu level.

4 Changing UI Input Modes

  • Using SetInputMode().
  • Configuring an input mode.
  • Displaying the cursor.
  • Repeat for yourselves.

5 Advanced UMG Widget Layout

  • How container widgets work.
  • Canvas panel.
  • Horizontal/vertical boxes.
  • Size boxes as spacers.
  • Overlay.
  • Create a layout.

6 Custom Buttons And Fonts

  • 9-slice images for buttons.
  • Box vs border vs image.
  • Using Google fonts.
  • Scale box for backgrounds.
  • Make it pretty.

7 Solution: Custom Buttons And Fonts

  • We make our menu pretty.

8 Connecting UMG to C++

  • Create a UUserWidget class.
  • Reparent the widget BP.
  • Add a bind widget property.
  • What do the errors mean?

9 Initialisers and UButton Callbacks

  • How to Initialize a UserWidget.
  • The UButton OnClick handler.
  • Add a dynamic handler.

10 Interfaces To Invert Dependencies

  • Intro to inverting dependencies.
  • How to make a interface in Unreal.
  • Using an interface for callbacks.
  • Injecting the dependency.

11 Solution: Injecting Dependencies

  • We solve last lecture's challenge.

12 Deactivating Menus

  • Refactoring our menu setup.
  • Creating a teardown stub.
  • Reversing the setup logic.

13 Sub-Menus With Widget Switchers

  • What are widget switchers.
  • Creating a "Join" menu.
  • Styling the menu.

14 Solution: Styling Our Sub-Menu

  • We finish styling out menu.

15 Navigating Menus In C++

  • Binding the WidgetSwitcher.
  • Investigating the API.
  • Switching menus.
  • Implement a back button.

16 Reading Text Fields From C++

  • Set startup level.
  • Bind the text field.
  • Call the Join() function.

17 Challenge: Loading In-Game Menus

  • Create the new widget.
  • Create the layout.
  • Load on ESC key in level.
  • Create a UMenuWidget.

18 Challenge: Leaving A Server

  • The challenge spec.
  • Hook up the cancel button.
  • Hook up the quit button.

19 Quitting A Game From C++

  • How to quit from the console.
  • Running console commands from C++.
  • Quitting from a button press.

99 Menu System Wrap-up

  • How to polish your menu system.
  • Share it with other students.