Unreal Engine 5 C++ Project

✍ Last Updated : August 15, 2022

🚪 Prerequisites

Install Unreal Engine 5 and all of the prerequisites [Unreal Engine 5 Installation](Unreal Engine 5 Installation 3a14402970134e8689bdfce4fa8b4de5.md)

❓ Key Question / Problem / Issue

1. How to create / start Unreal Engine 5 project with C++ as the base?
2. How to create scripts which could control actor in a runtime?

✅ Expected Output/Definition of Done

1. Unreal Engine 5 project with C++ as the base is created.
2. C++ class scripts which have function to control / moving actor in a runtime.

🎁 Resulting Solution

Create C++ Project

• Open/Launch Unreal Engine 5.

• If there’s error on launching the apps, make sure you pass all of the engine requirement here Hardware and Software Specifications .

• Once the Unreal Project Browser show up, at Games section, select one of game template or just select ‘Blank’.

• At Project defaults, change to C++ as base project, let the rest default.

• Fill up Project Name and click button Create.

  

• Wait until the project open.

Open C++ Project

There’s two ways to open the project.

• Open like usual from Unreal Project Browser:

  

• Open from Visual Studio:

  • Open Visual Studio from project folder.

    

  • Set solution configuration to Development Editor

    

  • Run/Debug project with click F5 (Debugging) or Ctrl+F5 (Without Debugging), wait until Build succeeded and Unreal Engine Editor opened.

Create Custom Actor with C++ Script Component

• Open Content Browser, at folder C++ Classes/[ProjectName].

• Right click, and create New C++ Class..

  

• Because we can make a script which can control object in scene, select Scene Component. Next

  

• Fill up name, Create Class

  

• After regenerating project files, its automatically open Visual Studio, with two script of our latest created C++ Class component MoveComponents.cpp (implementation) & MoveComponents.h (header) opened.

• In MoveComponents.h add script to define parameter:

  private:
  	// Parameter
  	UPROPERTY(EditAnywhere)
  	FVector MoveOffset;
  	UPROPERTY(EditAnywhere)
  	float Speed = 1.0f;
  	UPROPERTY(EditAnywhere)
  	bool MoveEnable = true;
  
  	// Computed locations
  	FVector StartRelativeLocation;
  	FVector MoveOffsetNorm;
  	float MaxDistance = 0.0f;
  	float CurDistance = 0.0f;
  	int MoveDirection = 1;
  

• In MoveComponents.cpp, BeginPlay function. add script:

	StartRelativeLocation = GetRelativeLocation();

	// compute normalized movement
	MoveOffsetNorm = MoveOffset;
	MoveOffsetNorm.Normalize();
	MaxDistance = MoveOffset.Length();

	// check if ticking is required
	SetComponentTickEnabled(MoveEnable);

• In MoveComponents.cpp,Tick function. add script:

  	// set the current distance
  	if (MoveEnable)
  	{
  		CurDistance += DeltaTime * Speed * MoveDirection;
  		if (CurDistance >= MaxDistance || CurDistance <= 0.0f)
  			MoveDirection *= -1;
  	}
  
  	// compute and set current location
  	SetRelativeLocation(StartRelativeLocation + MoveOffsetNorm * CurDistance);
  

• Save file, and recompiles. Wait until compiling succeeded.

  

• Create blueprint class, right click at Content Browser.

  

• Select Actor, name it CustomChair, and open.

  

• In Blueprint Editor, Add Component, Find MoveComponents. Add it.

  

• Drag MoveComponents to DefaultSceneRoot, to make MoveComponents default.

  

• Add StaticMesh component (follow step you add MoveComponent), and name it Chair.

  

• Add models at Static Mesh details.

  

• At MoveComponents fill Move Offset and speed. Compile and save blueprint.

  

• Add CustomChair to Maps by drag it in. Play Level, the chair will move to offset with speed you fill.

  

Source

#01 - Creating A Project | UE5 C++ Tutorial

#02 - Actors & Components & Custom Move Component | UE5 C++ Tutorial