Virtual Reality – VR-UE4 – Create the first C ++ project – Hello Word

This part is mainly to use code in C++ to output a line of text on the game interface

The first step is to create a new C++ version of the project file. After version 4.12, the Vs compiler will be automatically opened after creation.

As shown below

Click to compile in VS, wait for the tape to compile, the first time the waiting time is longer , The specific time is more specific and its configuration depends on

After the first compilation is completed, it proves that our project is correct Yes, this way, when the post-compilation fails, it can be ruled out that it was an error when the project was created

After the project is completed, you can Set the program to start the map

Select the edit item to set the map mode, set the default map

This time, every time the program runs, it will start our map by default

Create a new The GameModel class

As shown below

After the creation is completed, the program will automatically open the VS compiler, and open the .H file and .CPP file by default

< br>

Everyone will see some files generated by default

#pragma once#include "GameFramework/GameMode.h"#include "MyGameMode.generated.h"/** */UCLASS()class M_C_TEST1_API AMyGameMode: public AGameMode{ GENERATED_BODY() };

UCLASS()

pre>
GENERATED_BODY()

These codes are unique to UE4 Yes, when we compile, UE4 will recognize these files

After closing UE4, compile the program again

Pay attention to the current project size


At this time, we have to choose our own newly created game model to control the game

< img src="/wp-content/uploadshttp:/img.voidcn.com/vcimg/static/loading.png" alt="" d="5145758" s="59c_009" t="jpg">
< /p>

Add function declaration in .H file

virtual void BeginPlay() override;


Implemented in .cpp

void AMyGameMode::BeginPlay()
{
if (GEngine)
{
< /span>GEngine->AddOnScreenDebugMessage(-1, 8.f, FColor::Red, TEXT("Hello word"));
}< br> }

In theory, running the game is fine, but I failed.

Next I will load a built-in To check it out

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