Templates

Files are generated using Mustache templates via Stubble. The main constructs are variable substitution ({{var}}), sections ({{#var}}…{{/var}}), and inverted sections ({{^var}}). See the Mustache manual for the full syntax reference.

Default Templates

Three templates ship with the tool, living in the Templates/ folder of the installation. All three can be overridden per project (see Per-Project Overrides below).

Header.mustache

Used for the .h file of every class.

{{#CustomCopyright}}//	{{CustomCopyright}}
{{/CustomCopyright}}//  {{ProjectName}}
{{^CustomCopyright}}//
//  {{Year}}(c) - Copyright {{ProjectCompany}}{{/CustomCopyright}}
//
//  File Name   :   {{FileName}}.h
//  Description :   {{Description}}
//

#pragma once

// Library Includes{{^bIsGameModule}}{{#bHasParent}}
#include "{{ParentClassSource}}"{{/bHasParent}}{{/bIsGameModule}}

// Local Includes{{#bIsGameModule}}{{#bHasParent}}
#include "{{ParentClassSource}}"{{/bHasParent}}{{/bIsGameModule}}

// This Includes{{#bIsUClass}}
#include "{{FileName}}.generated.h"{{/bIsUClass}}

// Types

// Constants

// Prototypes

{{#bIsUClass}}
// {{Description}}
UCLASS(){{/bIsUClass}}
class {{Class}}{{#ParentClass}} : public {{ParentClass}}{{/ParentClass}}
{
{{#bIsUClass}}	GENERATED_BODY()
{{/bIsUClass}}	// Member Functions
public:

protected:

private:

	// Member Variables
public:

protected:

private:

};

Cpp.mustache

Used for the .cpp file of every class.

{{#CustomCopyright}}//	{{CustomCopyright}}
{{/CustomCopyright}}//  {{ProjectName}}
{{^CustomCopyright}}//
//  {{Year}}(c) - Copyright {{ProjectCompany}}{{/CustomCopyright}}
//
//  File Name   :   {{FileName}}.cpp
//  Description :   {{Description}}
//

// This Includes
#include "{{FileName}}.h"

// Library Includes

// Local Includes
{{#bIsUClass}}

// Generated CPP
#include UE_INLINE_GENERATED_CPP_BY_NAME({{FileName}})
{{/bIsUClass}}

// Static Variables

// Static function prototypes

// Implementation

Struct.mustache

Used for the .h file of structs. No .cpp is generated.

{{#CustomCopyright}}//	{{CustomCopyright}}
{{/CustomCopyright}}//  {{ProjectName}}
{{^CustomCopyright}}//
//  {{Year}}(c) - Copyright {{ProjectCompany}}{{/CustomCopyright}}
//
//  File Name   :   {{FileName}}.h
//  Description :   {{Description}}
//

#pragma once

// Library Includes{{^bIsGameModule}}{{#bHasParent}}
#include "{{ParentClassSource}}"{{/bHasParent}}{{/bIsGameModule}}

// Local Includes{{#bIsGameModule}}{{#bHasParent}}
#include "{{ParentClassSource}}"{{/bHasParent}}{{/bIsGameModule}}

// This Includes{{#bIsUStruct}}
#include "{{FileName}}.generated.h"{{/bIsUStruct}}

// Types

// Constants

// Prototypes
{{#bIsUStruct}}
// {{Description}}
USTRUCT()
{{/bIsUStruct}}struct {{Class}}{{#ParentClass}} : public {{ParentClass}}{{/ParentClass}}
{
{{#bIsUStruct}}	GENERATED_BODY()
{{/bIsUStruct}}
};

Per-Project Overrides

Drop custom versions of any template into:

{ProjectDir}/build/ClassCreator/Header.mustache
{ProjectDir}/build/ClassCreator/Cpp.mustache
{ProjectDir}/build/ClassCreator/Struct.mustache

The tool checks this location first and falls back to the bundled templates if no override is present. You only need to provide the templates you actually want to change.

Template Variables

Variable	Type	Description
Class	string	Full class name, e.g. AMyActor
FileName	string	Class name with leading U, A, or F stripped, e.g. MyActor
ParentClass	string	Parent class name, e.g. AActor. Empty for standalone classes.
ParentClassSource	string	Relative #include path to the parent header
ModuleName	string	Parent class module name, e.g. Engine
ProjectName	string	Unreal project name
ProjectCompany	string	Company/author from the Company Name setting
Year	string	Current four-digit year
Description	string	User-provided description, or TODO: if blank
bIsUClass	bool	true if the parent is a U- or A-prefixed class — emits UCLASS() and GENERATED_BODY()
bIsUStruct	bool	true for structs that need USTRUCT() and GENERATED_BODY()
bHasParent	bool	true when a parent class was selected
bIsGameModule	bool	true if the parent class is from the game project — affects include section ordering
CustomCopyright	string	Optional copyright line override; replaces the default project/company header block when present

Generated File Structure

Header (MyActor.h)

//  MyProject
//
//  2026(c) - Copyright MyCompany
//
//  File Name   :   MyActor.h
//  Description :   TODO:

#pragma once

// Library Includes
#include "GameFramework/Actor.h"

// This Includes
#include "MyActor.generated.h"

// Types

// Constants

// Prototypes

// TODO:
UCLASS()
class AMyActor : public AActor
{
    GENERATED_BODY()
    // Member Functions
public:

protected:

private:

    // Member Variables
public:

protected:

private:

};

Implementation (MyActor.cpp)

//  MyProject
//
//  2026(c) - Copyright MyCompany
//
//  File Name   :   MyActor.cpp
//  Description :   TODO:

// This Includes
#include "MyActor.h"

// Library Includes

// Local Includes

// Generated CPP
#include UE_INLINE_GENERATED_CPP_BY_NAME(MyActor)

// Static Variables

// Static function prototypes

// Implementation