Reading text file in Unreal Engine 4

Something that really bug me is inability of ue4 to handle or read simple text file. Yes, you still can do this. But, what if I want to do is just put simple file text and read that as a string. You can do that in C++ using

For the purpose of this tutorial, we will create text file reader as a actor component. We need a method to read file that will be called from blueprint.

1. Create class actor component

   

   Name it “TextReaderComponent”.

2. Put this code in your header & implementation files.

   TextReaderComponent.h

   C++

   UFUNCTION(BlueprintCallable) FString ReadFile(FString filename);

   1 2	UFUNCTION(BlueprintCallable) FString ReadFile(FString filename);

   
   
   TextReaderComponent.cpp

   C++

   FString UTextReaderComponent::ReadFile(FString filename) { //Read file ini [project]/Content/Data/ //you can change with other location FString directory = FPaths::Combine(FPaths::GameContentDir(), "Data"); FString result; IPlatformFile& file = FPlatformFileManager::Get().GetPlatformFile(); if (file.CreateDirectory(*directory)) { FString myFile = directory + "/" + filename; FFileHelper::LoadFileToString(result, *myFile); } return result; }

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   FString UTextReaderComponent::ReadFile(FString filename) { //Read file ini [project]/Content/Data/         //you can change with other location FString directory = FPaths::Combine(FPaths::GameContentDir(), "Data"); FString result; IPlatformFile& file = FPlatformFileManager::Get().GetPlatformFile(); if (file.CreateDirectory(*directory)) { FString myFile = directory + "/" + filename; FFileHelper::LoadFileToString(result, *myFile); } return result; }

3. Compile!

   Compile in both Editor & Visual Studio.

4. Testing.

   Create text file in Content/Data/file.txt. Fill it with whatever text you want. Add Component “Text Reader” in your actor. Drag component to Event Graph. Now you can read simple text file.