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

**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

FYI if anyone is using 4.7.0 here are the steps you need to take in order to get the plugin to work. Latest version above:

  1. In VictoryEdAlignMode.cpp (Line 602) change RV_TraceParams.IgnoreActors.Empty(); to RV_TraceParams.IgnoreComponents.Empty();

  2. Comment out (temp measure) lines 220 & 883 in VictoryBPFunctionLibrary.cpp

  3. In VictoryEdEngine.Build.cs add “Slatecore” (inc quotes) after “Slate”

Works perfectly!

Peter

Those stock variants seem like the most useful. most other data types could technically be stored using one of those, at the cost of some memory and conversion time.

The two use cases I have would be covered by storing strings, and storing an int.

Thanks again for contributing so much to our community!

BP Node to Get Your Computer’s IP Address!

UPDATE: The VictoryPC class got removed from my plugin somehow between updates, this post below is now fully integrated into the plugin again!

Now you can get your computer’s IP from within UE4, from within Blueprints!

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

Rama’s Blueprints TMap Solution!

I’ve now made a BP TMap solution!

TMap is a data structure that is not yet exposed to BP, but I’ve made a component-based solution for you so that you can use TMaps in BP!


**What's a TMap?**

A TMap is a data structure based on Key,Value pairs, where for any Key there is only one Value.

This allows internal data structure look up times that are much faster than a regular dynamic array.

This also allows for the association of dissimilar data types in a way that you organize.

For example, you can map a set of integers to a set of Vectors, so that each integer is related to exactly one vector.

Or, as I provide you with in my plugin, you can **relate a String to an Actor**!

This means you can look up an Actor reference via a simple string input!

Or you can look up Vector data based on String data!

**The primary use of TMaps is for efficient lookup of data**, which dynamic arrays simply cannot do because there is no guarantee or assumption with dynamic arrays of anything like a key,value where each key has only 1 value.

**The rules of TMaps allow for efficient look up to speed up your game flow!**

Actor Component

My solution is component-based, which means you can have per-instance TMap data for your game’s actors!

You simply add my Victory TMap Component to any actor you want!

I used the My Character blueprint in my own tests!!!

You can use literally any actor you want, or make a new actor BP whose only role is to house the TMap Component

bb75874a149303af4651f3ddd1aa90d9ed5bbf1c.jpeg


**Supported Types**

![aa1ade53f3ff0021436f1a76aac85d11992bbd7c.jpeg|1265x798](upload://ogOJATwlYRl6WYup8uRYQZ9AtGc.jpeg)

Supported TMap Functions

06a72fc14f4c795fe5f7fced0d14ac3be930f540.jpeg

b818ed9880a52331f6f82fb120d746a9106b591d.jpeg


**Additional TMap Combinations**

If you find that you cannot use my existing set of TMap Combinations to fulfill your game's needs, let me know by posting in this thread and I can add additional TMaps to the component.

Per Instance

Remember that what I providing you with is a component-based solution, so you can add this TMap data to as many actors in your game as you want, and have per-instance variations in the data contained therein!

Enjoy!

Rama

Hi Rama - this is a brilliant node (The image loader) that will make my life very much easier! I was using VaQuole to load images through a web address (to a local path) - this is going to make my life so much easier!

Thanks, and thanks again for my socket plugin.

Dan.

Hello Rama,
Great piece of work!
I do have some requests on the tmap comp.
could you also provide a node to only add unique KV pair?
could you add a node wher value is Transform?
and a node where value is struct?
and lastly a node where value is targetpoint?

Many tnx in advance.

Greetz,
G

Wow, Thanks for the Tmap nodes that will be so handy! :smiley:

Hee hee! You’re welcome Dan!

" only add unique KV pair" All KV pairs are unique already! That’s how a TMap works.

“value is Transform?” What do you want the key to be?

“targetpoint?” you can do that already, target points are Actor, you can use FString,Actor

“where value is struct?” no I can’t do a generic struct like that in c++

Let me know how it goes Hyperloop!

Rama

Hello Rama,

They key for value Transform could be an int.
I asked about unique kv pair, because i saw in the image you posted a comment that when you add a kv pair where key already exists, the value will be overwritten.
So i meant an extra node where adding will fail if key already exist, instead of overwrite the value.
I thought targetpoint could be handy, so that casting/ extra checking isn’t neccesary.

Many tnx in advance.

Greetz,
G

Rama’s Blueprints TMap Solution!

I’ve now made a BP TMap solution!

TMap is a data structure that is not yet exposed to BP, but I’ve made a component-based solution for you so that you can use TMaps in BP!

My solution is component-based for per-instance variations!

bb75874a149303af4651f3ddd1aa90d9ed5bbf1c.jpeg


**Supported Types**

![aa1ade53f3ff0021436f1a76aac85d11992bbd7c.jpeg|1265x798](upload://ogOJATwlYRl6WYup8uRYQZ9AtGc.jpeg)

Full details here!

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 in the file!

See pic!

Enjoy!

Rama

Download Link (6.5mb)

UE4 Wiki, Plugin Download Page

Rama!

Are these compat with the preview 5 4.7? :>

I dont do Victory BP library upgrades until the official release, but Peter explained how you can upgrade to 4.7 early if you want to!

:slight_smile:

Rama

**New Release!

Rama’ Suite of Custom Config Section BP Nodes!**

Using my new suite of BP nodes, you can create as many of your own custom config file sections as you want!

You can both create and retrieve ini variables with any name and fundamental type that you want!


**Supported Types:**

Bool
Int
Float
Rotator
Vector
Color
String

Why Use a Config Var?

Config vars have several benefits

  1. Persistent data storage without using a SaveGame struct or GameInstance, store simple quantities of data and player customization this way! Data is stored between level loads and even after the current instance of the game is shut down.

So in this way config vars have greater persistence than the GameInstance class!

  1. Player-Driven Customization, Players of your game can tweak the config vars that you make available for them on their hard disk, by editing the .ini file directly, just like AAA games! This is the most significant advantage of using config files, and their real core purpose. :slight_smile:

  2. Simplicity, simpler to use than the BP SaveSystem (which is quite wonderful by the way), but not quite as powerful in that you can only store basic data types, not UObjects and Actors.

  3. **Organization, **you can create as many config header sections as you want using my nodes, organizing all your custom settings this way!


**Game.ini**

All of your custom created config vars and sections are stored in:

**Saved/Config/Windows/Game.ini**

Players can navigate to this location on their harddrive to edit your ini files just like any AAA game would allow!

Here's what my **Game.ini** file looks like after running some tests!



```


[DebugWindows]
ConsoleWidth=160
ConsoleHeight=4000
ConsoleX=-32000
ConsoleY=-32000

[/Script/UnrealEd.ProjectPackagingSettings]
BuildConfiguration=PPBC_Development
StagingDirectory=(Path="E:/MYPROJECT_DELETE")
FullRebuild=True
ForDistribution=False
UsePakFile=True
UseOBB_InAPK=False
CulturesToStage=en

[Victory]
BoolVar=True
VectorVar=X=1.000 Y=2.000 Z=9000.123
StrVar=Yay For Custom Config Vars!!!
FloatVar=234.000000


```



**Now you have fully featured ability to use config variables entirely in BP!**

Rama

PS: Here's example usage!

![Usage.jpg|1280x960](upload://vJ8VyiQCZXj6G59JXlBNDrMdZow.jpeg)