Essential Knowledge; UTYPE Crash Course! UCLASS, USTRUCT, UENUM, UINTERFACE -- UE C++ Tutorial

An introduction to the UTYPEs used in Unreal C++. UInterface, UEnum, UStruct, and UClass. I walk through writing each example and discuss some esoterics/nuances you should know. 0:00 Intro 0:15 USTRUCT 0:28 UClass Macros and UHT 0:45 UClass Features UPROPERTIES, UFUNCTIONs, and plain-old c++ 1:18 Exposing Class to the BP scripting system, BlueprintType, Blueprintable 1:30 UClass prefix U 1:54 Exposing UPROPERTIES and UFUNCTIONS to blueprint 2:23 Subclassing a code UOBJECT in blueprint 2:47 USTRUCT 2:54 USTRUCT Macros and UHT 3:05 USTRUCTs purpose, the intended use case 3:15 Type name prefixes reviewed 3:30 USTRUCT Features - UPROPERTIES not UFUNCTIONS 4:12 USTRUCT Exposing data to the editor 4:54 USTRUCTS and the Garbage Collector 5:15 USTRUCTS are NOT mem zeroed, so initialize your memory. 5:48 USTRUCT Garbage Collection Context Importance 6:48 How to do nested containers with ustructs 8:03 UENUMs 8:14 UENUM and UHT macros 8:46 Using UENUMs in the editor 9:26 UINTERFACE 9:30 UINTERFACE Boilerplate Type and Inherit Type 9:38 UINTERFACE Syntax, Macros, and UHT 10:51 Implementing UINTERFACE in cpp/c++ 11:57 Implementing a code interface in blueprint 12:25 BlueprintType and interfaces 12:49 High level review 14:58 UINTERFACE overriding BlueprintNativeEvent in code 15:12 High level review 15:38 Outro