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(39) Rama's Extra Blueprint Nodes for You as a Plugin, No C++ Required!

But it will not be possible in 4.7, right?

Hi there Rama,

first of all, thank you very much for all content to provide us with.

I have a question referring your Rebindable Key.

I tried to figure out from where you used this OnKeyDown Event, which seems to be a reply to any Key Event occuring.
I looked through the Engine and couldnt find any Function which describe that behaviour. How did you do that?

best regards
Wallhalla

Rama, thank you for another excellent Unreal Engine 4 contribution!

I just found out that the function i need is implemented in UserWidget.h.

But how is the intention of getting this inside an UMG widget, is this event automatically consumed within widgets parent, when the child is in focus?

Hi Rama,

Its been a while since I posted on this forum. Took a break from my thesis.

I am facing some limitations with your current vertex manipulation blueprints. One of that is I have a class called Interactive_Actor. This actor class holds all the thermodynamic properties of a static mesh. It also has a component called Default Mesh which gets changed to a user set static mesh through a Set Static Mesh node in the constructor. However, when I drag out the blueprint into the scene, there are no vertices highlighted. It seems the codes only work directly on static meshes dropped into the scene. Is there a way to make it work also on custom blueprint actors (static meshes with custom properties)?

Cheers!!!

omg… sorry for the disturbance i missed the “show inherit variables”…

You’re welcome Tim!

Thank you so much for UE4!

I am having fun with UE4 every day!

Rama

You should use StaticMeshActor as your base class for your BP, hopefully then it will work right!

Replace all uses of your custom static mesh component with StaticMeshComponent ref.

Try it as a test and see how it goes!

Good luck!

Rama

BP Node to Get Your Computer’s IP Address!

Dear Community,

I’ve finally succeeded at implementing a node that many have been trying to implement since the Beta!

This is a BP node that gets the IP address of your computer!

My node relies on http://api.ipify.org, a free and easy way to get your current IP address.

Because this node involves an HTTP request I can’t make it a static library node, so I instead made a VictoryPC class that contains only this functionality.

You can easily re-parent your current player controller blueprint to use my plugin VictoryPC class!

File->Reparent

and if you are not using a PC already, make sure to go to World Settings and use my VictoryPC as your player controller!

As long as my Victory BP Library is an active plugin for you, then this VictoryPC class will show up!

Download:


**Celebration!**

Yay!

Now we can all get the IP address of the local computer for use with multiplayer games or webserver activities!

Enjoy!

Rama

Pic

Here’s the setup you should create in your Blueprinted version of my VictoryPC!

2902549c08d489d31bb43f8a7049793370d4801e.jpeg


**C++ Source Code For You**

Here is the C++ source code I wrote just earlier today!



```


bool AVictoryPC::VictoryPC_GetMyIP_SendRequest()
{
	FHttpModule* Http = &FHttpModule::Get();
	
	if(!Http)
	{
		return false;
	}
	 
	if(!Http->IsHttpEnabled()) 
	{
		return false;
	} 
	//~~~~~~~~~~~~~~~~~~~
	
	FString TargetHost = "http://api.ipify.org";
	TSharedRef < IHttpRequest > Request = Http->CreateRequest(); 
	Request->SetVerb("GET");
	Request->SetURL(TargetHost);
	Request->SetHeader("User-Agent", "VictoryBPLibrary/1.0");
	Request->SetHeader("Content-Type" ,"text/html");
 
	Request->OnProcessRequestComplete().BindUObject(this, &AVictoryPC::HTTPOnResponseReceived);
	if (!Request->ProcessRequest())
	{
		return false;
	}
	  
	return true;
}
	
void AVictoryPC::HTTPOnResponseReceived(FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful)
{
	this->VictoryPC_GetMyIP_DataReceived(Response->GetContentAsString());
}
 


```



♥

Rama

I was stuck with dynamic generated arrays in BP… and then I found a way to load image sequences with your plugin. You saved my life! ;D
I used the LoadObjectFromAssetPath node, but I’m gonna try the LoadImage node soon as well!
I’m eagerly waiting for 4.7 and see if I can deploy to Android apk directly…
Thx again dude!

Hi rama!

What about a Bp that enables/disables subtitles during runtime? Can this be posible?

In fact, could be posible to change the culture (cultures are the game’s languages people) during runtime?

With this two features, your already done graphics, custom ini’s settings and key rebinding we could have an entire game menu 100% functional without game launcher working ingame in any plataform! :smiley:

Anyways, thank you for the already well done work! Porting Mind: Path to Thalamus to Vr and UE4 is being soo much easier thanks to your nodes :wink:

Hi! Oh you’re welcome, yay! Glad my Victory BP Library helped you out!

I know there’s a command to change localization at runtime, if you can find it via Epic’s tutorials or answerhub then I can work with it as a BP node :slight_smile:

Rama

Hi rama thanks for your answer!

Well the point is I haven’t found anything about that command. If it ever existed with a simple “Execute console command” node would have been more than enough to change the game’s culture but I can’t seem to find it. What I have found (and tested and yes, it is working) is that you can pass “-culture=fr” on the commandline when launching the game and that works (I set this in a shortcut). I have found this in the answer HUB How do I test translations with console commands? - UE4 AnswerHub but the console command “-culture=fr” doesn’t work for me in the console(not recognized with and without the quotes).

Btw, I found something really usefull in terms of localization: when you use the gather text commandlet now it also gathers the soundwaves and the soundcues! The guys from Solus were having problems but it seems Epic Games fixed it (just posting this here so people who end here getting info on the subject can read it :wink: )

Rama, setting the subtitles on and off in runntime should be super easy in C++ because in the project settings menu there is indeed and option to set the subtitles on and off and well, if you have managed to do blueprints to rebind keys during runntimes subtitles should be really easy.

Keep on the good workk!! I can’t wait to show you guys what I am doing :smiley: :smiley: :smiley:

Hee hee yup I know, I am the C++ programmer for Solus, and I worked with Epic directly to resolve 3-4 substantial bugs with the Localization system to get the commandlets working better.

I think you should ask on the answerhub if there is a way to change the culture of the game without having to restart the game! Then let me know know what response you get, and if you send link I can post there too.


**Subtitles**

I am trying to meet a deadline but something like this should work



```


void SetSubtitlesActive(bool MakeActive)
{
	GEngine->bSubtitlesEnabled = MakeActive;
	
	//Clear any existing if setting subtitles off!
	if(!MakeActive)
	{
		FSubtitleManager * SM = FSubtitleManager::GetSubtitleManager();
		if (SM)
		{
			SM->KillAllSubtitles();
		}
	}
}


```



What do you think?

Let me know if you think there's a more elegant way to do it than talking to GEngine directly.

Rama

**Load Texture 2D From File!

JPG, PNG, BMP, ICO, EXR, and ICNS are Supported File Formats !**

With this node you can load a Texture 2D from a file during runtime!

I output for you the width and height of the loaded image!

Now you can easily create Texture 2D’s from image files in Blueprints, during runtime!

Special Note!

Tim Sweeney liked this node!

Enjoy!

Rama

PS: Make sure to include the file extension when you use this node!

5e04c4d83d602f944fb2cfd946e90787f3b20f70.jpeg


**C++ Code For You**

Here is the core C++ function involved, entire source is in the download! I wrote my own Enum for the file formats.



```


UTexture2D* UVictoryBPFunctionLibrary::Victory_LoadTexture2D_FromFile(const FString& FullFilePath,EJoyImageFormats ImageFormat, bool& IsValid,int32& Width, int32& Height)
{
	IsValid = false;
	UTexture2D* LoadedT2D = NULL;
	
	IImageWrapperModule& ImageWrapperModule = FModuleManager::LoadModuleChecked<IImageWrapperModule>(FName("ImageWrapper"));
	
	IImageWrapperPtr ImageWrapper = ImageWrapperModule.CreateImageWrapper(GetJoyImageFormat(ImageFormat));
 
	//Load From File
	TArray<uint8> RawFileData;
	if (!FFileHelper::LoadFileToArray(RawFileData, * FullFilePath)) 
	{
		return NULL;
	}
	
	  
	//Create T2D!
	if (ImageWrapper.IsValid() && ImageWrapper->SetCompressed(RawFileData.GetData(), RawFileData.Num()))
	{ 
		const TArray<uint8>* UncompressedBGRA = NULL;
		if (ImageWrapper->GetRaw(ERGBFormat::BGRA, 8, UncompressedBGRA))
		{
			LoadedT2D = UTexture2D::CreateTransient(ImageWrapper->GetWidth(), ImageWrapper->GetHeight(), PF_B8G8R8A8);
			
			//Valid?
			if (!LoadedT2D) 
			{
				return NULL;
			}
			
			//Out!
			Width = ImageWrapper->GetWidth();
			Height = ImageWrapper->GetHeight();
			 
			//Copy!
			void* TextureData = LoadedT2D->PlatformData->Mips[0].BulkData.Lock(LOCK_READ_WRITE);
			FMemory::Memcpy(TextureData, UncompressedBGRA->GetData(), UncompressedBGRA->Num());
			LoadedT2D->PlatformData->Mips[0].BulkData.Unlock();

			//Update!
			LoadedT2D->UpdateResource();
		}
	}
	 
	// Success!
	IsValid = true;
	return LoadedT2D;
}


```



Download Link (6.5mb)

UE4 Wiki, Plugin Download Page

Rama’s Suite of Powerful UMG Nodes

Here are the 3 core BP nodes that I’ve been using to make all of my complicated interacting UMG menus, including an in-game file browser and a menu that allows you to change the materials on any skeletal mesh, while in-game!

These nodes are available to you now!


**Get All Widgets of Class**

Allows you to not have to store references everywhere to your widgets, making it easy to interact with the Player Controller and My Character blueprints :) 

Also makes it easy to remove a loading screen after a level transition, without storing refs in Game Instance class

Epic added this node of mine, it should be in 4.7 !

Remove All Widgets Of Class

You can find and remove any widget any time this way, no matter where you are in BP! (here I am in the Level BP)

Rama Tip:
If you make a general superclass for all your widgets (Reparent to a blank UserWidget of your own making), you can clear your entire UI system from the viewport with a single call to RemoveAllWidgetsOfClass, supplying the class that is your super class for all your user widgets!

So lets say you have 3 user widgets that you made, make a 4th that is blank, reparent your existing 3 to your new empty 4th widget (“WidgetMaster” for example).

Now you can just call RemoveAllWidgetsOfClass on your new 4th widget, WidgetMaster, and all 3 of your existing widgets will be removed automatically from the viewport!


**Is Widget Of Class In Viewport**

Take action based on the dynamic lookup of whether a certain widget is currently visible!

No need to store refs or bools anywhere, just do a dynamic look up that is lightning fast!

**If you turn "Top Level Only" off** you can iterate over the internal widgets of the visible wdigets that have been added to the viewport!

♥

Rama

![9b7a621d3332fdafbe78b687447eb1c37f3f558c.jpeg|1035x750](upload://mbqdc9TTsCkJHaeTMyxg2GR6Hak.jpeg)

Nice plugin Rama.
I got a problem, i like use your nodes to read / write in the ini file, but i like use with a custom ini file, i added to the plugin for this:

VictoryBPFunctionLibrary.h

VictoryBPFunctionLibrary.cpp

And in the game folder Config/ added the “DefaultGameSettings.ini” file with

now in the editor, in the Level Blueprint i using this nodes and the print node to print in the screen.

Then i got 2 problems:
1º- When i read the value to get the name, i got “” = nothing, but if set before the value to x name, i got the name changed, but no idea where is saved, because the name no is in the inis of the game folder or engine folder (and don’t is in my file or in the created saved files but is changed in somewhere).
2º- My friend Moss, tell me i need load the ini in cache creating a new class, i have created in the game project this:

GameSettingsConfig.h

GameSettingsConfig.cpp

and now this generate a empty (with 2 space lines) files in the Saved/ and but without the vars…

Then where is saved that data and how make this works correctly ?
Thanks.

Rama,

One idea for super handy node would be to write a UFUNCTION to expose the ability to add and search for data in a TMap via blueprint. TMap’s can’t be exposed directly to blueprints as a UPROPERTY, but it would be very very hand to have the ability to store stuff in a container that can be searched quickly via blueprint. It’s one of the major shortcomings of using arrays in blueprint beyond a certain point because to search on them begins to take a long time compared to a dictionary/hash map

That’s a great idea!

I could make an Actor that you spawn that could store tmaps

The one issue is how to define the types of the tmap

I might have to just go with some stock variants like

FString,FString,
FString,int32
FString,Vector

buuut, this is rather limiting

The types have to be defined for the TMap at compile time though…

sooooo

How about you tell me what Tmap combination you need, and other people can do the same, and I’ll just keep making tmaps on this one actor, the TMapActor, and whichever one you need is the one you use.

Obviously not a perfect solution but I have no idea how to allow you to pick the tmap types via BP, maybe the reason they are not BP exposed in first place.

But what I’ve described as a solution could work , as one extra actor is a lot less troublesome that having really slow lookups of large amounts of data, constantly, during game time.

Rama

**New Node

Save String Array To File**

The previous String File IO could only save a single line of text, even if you put "
" into your string

So I"ve made a new node that lets you save multiple lines of text to file, each FString of the array is on its own line!

See pic!

Enjoy!

Rama

Download Link (6.5mb)

UE4 Wiki, Plugin Download Page