Unreal Engine

Currently using UE4 (4.10.4)

Links

Blender

• Blender 3D Design Course

• Export Options (so that the object is not lying on the side after Export/Import):
  • Forward: Y Forward
  • Up: Z up

• Changing the object's origin to its bottom:
  • Switch to Edit Mode if needed (Tab). With vertex selection on, choose the center vertex in the bottom. Press Shift+S and choose Cursor to Selected. The 3D cursor will move to the selected vertex. Deselect all and switch to Object Mode (Tab).
  • In Tools choose Set Origin and then Origin to 3D Cursor.
  • Make sure the object's coordinates are set to 0,0,0. Now the object should be placed properly on the XY plane.

C++

Variable names

If you want to use real variable names but have nice names in the UE editor too, then use meta/DisplayName

UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Camera, Meta = (DisplayName = "First Person Camera Component") )
    UCameraComponent* m_pFirstPersonCameraComponent;

owner / client /server

The instance that spawned the class is always ROLE_Authority. If an Actor is spawned on the client, the client is the authority. -- OmaManfred

OmaManfred::

 
And concerning the owner stuff:


When you spawn an instance of a class on the server FOR Client A, you have to set him as the owner.

FActorSpawnParameters params;
params.Owner = PlayerAPlayerController;

SpawnActor<Class>(Class:StaticClass(),params);

Then on Client B you can say IsOwner(PlayerBPlayerController), which should return false. 

Logging

In game output of your logging, like chat text:

if (GEngine)
{
     GEngine->AddOnScreenDebugMessage(-1, 5, FColor::Blue, TEXT("AFPSCharacter is being used") );
}

bool log(FString sText) const;

bool 
AYourActor::log(FString sText) const
{
	if (GEngine)
	{
		GEngine->AddOnScreenDebugMessage(-1, 5, FColor::Blue, sText);
		return true;
	}
	else
		return false;
}

Misc

Source control

The minimum you have to put under source control:

/Config
/Content
/Source
Project.uproject