LogoLogo
HomepageDiscordItchPatreon
Yarn Spinner 2.2
Yarn Spinner 2.2
  • ⭐Start Here
  • Writing Your Dialogue
    • ⌨️Editing with VS Code
      • Installing the Extension
      • Writing Yarn in VS Code
      • Previewing Your Dialogue
    • ✍️Writing in Yarn
      • Nodes, Lines, and Options
      • Variables
      • Flow Control
      • Markup
      • Commands
      • Functions
      • Tags and Metadata
    • 🪄Upgrading Yarn Scripts
  • Working With Unity
    • Overview
    • 📦Installation
    • ⚡Quick Start
    • 📥Importing Yarn Files
      • Yarn Scripts
      • Yarn Projects
    • 🧱Components
      • Dialogue Runner
      • Dialogue Views
        • Line View
        • Options List View
        • Option View
        • Creating Custom Dialogue Views
        • Dialogue Advance Input
      • Variable Storage
        • In-Memory Variable Storage
        • Custom Variable Storage Components
      • Line Provider
        • Text Line Provider
        • Audio Line Provider
    • 🤖Commands and Functions
    • 🗺️Localizations and Assets
      • In-built Localisation
    • 💡Frequently Asked Questions / "How Do I...?"
  • Unity Sample Projects
    • 🛠️Choose-Your-Path Game
    • 🛠️Choose-Your-Path Game with Visuals
    • 🛠️NPC Dialogue Game
  • Guides
    • 🗃️Yarn Variables and Variable Storage
  • About
    • The Team
    • GitHub Repositories
    • Community Projects
    • How to credit Yarn Spinner
  • API Documentation
    • C#
      • Yarn Namespace
        • BuiltinTypes
          • Any
          • Boolean
          • Number
          • String
          • TypeMappings
        • Command
          • Text
        • CommandHandler
        • Dialogue
          • DefaultStartNodeName
          • Dialogue(Yarn.IVariableStorage)
          • AddProgram(Program)
          • Continue()
          • ExpandSubstitutions(string,IList<string>)
          • GetStringIDForNode(string)
          • GetTagsForNode(string)
          • NodeExists(string)
          • ParseMarkup(string)
          • SetNode(string)
          • SetProgram(Program)
          • SetSelectedOption(int)
          • Stop()
          • UnloadAll()
          • CommandHandler
          • CurrentNode
          • DialogueCompleteHandler
          • IsActive
          • LanguageCode
          • Library
          • LineHandler
          • LogDebugMessage
          • LogErrorMessage
          • NodeCompleteHandler
          • NodeNames
          • NodeStartHandler
          • OptionsHandler
          • PrepareForLinesHandler
          • VariableStorage
        • DialogueCompleteHandler
        • DialogueException
        • FunctionType
          • Description
          • Methods
          • Name
          • Parameters
          • Parent
          • ReturnType
        • IType
          • Description
          • Methods
          • Name
          • Parent
        • IVariableStorage
          • Clear()
          • SetValue(string,bool)
          • SetValue(string,float)
          • SetValue(string,string)
          • TryGetValue(string,T)
        • Library
          • DeregisterFunction(string)
          • FunctionExists(string)
          • GenerateUniqueVisitedVariableForNode(string)
          • GetFunction(string)
          • ImportLibrary(Library)
          • RegisterFunction(string,Delegate)
          • RegisterFunction(string,Func<TResult>)
          • RegisterFunction(string,Func<T1, TResult>)
          • RegisterFunction(string,Func<T1, T2, TResult>)
          • RegisterFunction(string,Func<T1, T2, T3, TResult>)
          • RegisterFunction(string,Func<T1, T2, T3, T4, TResult>)
          • RegisterFunction(string,Func<T1, T2, T3, T4, T5, TResult>)
        • Line
          • ID
          • Substitutions
        • LineHandler
        • Logger
        • MemoryVariableStore
          • Clear()
          • SetValue(string,bool)
          • SetValue(string,float)
          • SetValue(string,string)
          • TryGetValue(string,T)
        • Node
          • ToString()
          • Instructions
          • Labels
          • Name
          • SourceTextStringID
          • Tags
        • NodeCompleteHandler
        • NodeStartHandler
        • OptionSet
          • Options
          • Option
            • DestinationNode
            • ID
            • IsAvailable
            • Line
        • OptionsHandler
        • PrepareForLinesHandler
        • Program
          • Combine(Program[])
          • ToString()
          • InitialValues
          • Name
          • Nodes
      • Yarn.Markup Namespace
        • MarkupAttribute
          • ToString()
          • Length
          • Name
          • Position
          • Properties
        • MarkupParseException
        • MarkupParseResult
          • Attributes
          • Text
          • DeleteRange(MarkupAttribute)
          • TextForAttribute(MarkupAttribute)
          • TryGetAttributeWithName(string,MarkupAttribute)
        • MarkupProperty
          • Name
          • Value
        • MarkupValue
          • ToString()
          • BoolValue
          • FloatValue
          • IntegerValue
          • StringValue
          • Type
        • MarkupValueType
          • Bool
          • Float
          • Integer
          • String
      • Yarn.Compiler Namespace
        • BasicBlock
          • AddDestination(string,Condition)
          • AddDestination(BasicBlock,Condition)
          • Ancestors
          • Descendants
          • DescendantsWithPlayerVisibleContent
          • Destinations
          • FirstInstructionIndex
          • Instructions
          • LabelName
          • Name
          • NodeName
          • PlayerVisibleContent
          • CommandElement
            • CommandText
          • Condition
            • DirectJump
            • ExpressionIsFalse
            • ExpressionIsTrue
            • Fallthrough
            • Option
          • Destination
            • Block
            • Condition
            • NodeName
            • Type
            • DestinationType
              • Block
              • Node
          • LineElement
            • LineID
          • OptionsElement
            • Options
            • Option
              • Destination
              • LineID
          • PlayerVisibleContentElement
        • CompilationJob
          • CompilationType
          • Files
          • Library
          • VariableDeclarations
          • CreateFromFiles(IEnumerable<string>,Library)
          • CreateFromFiles(string[])
          • CreateFromString(string,string,Library)
          • File
            • FileName
            • Source
          • Type
            • DeclarationsOnly
            • FullCompilation
            • StringsOnly
        • CompilationResult
          • ContainsImplicitStringTags
          • DebugInfo
          • Declarations
          • Diagnostics
          • FileTags
          • Program
          • StringTable
        • Compiler
          • Compile(CompilationJob)
          • FlattenParseTree(IParseTree)
          • GetDocumentComments(CommonTokenStream,ParserRuleContext,bool)
          • GetLineIDForNodeName(string)
        • DebugInfo
          • GetLineInfo(int)
          • LineInfo
            • CharacterNumber
            • FileName
            • LineNumber
            • NodeName
        • Declaration
          • ExternalDeclaration
          • CreateVariable(string,Yarn.IType,IConvertible,string)
          • Equals(object)
          • GetHashCode()
          • ToString()
          • DefaultValue
          • Description
          • IsImplicit
          • Name
          • Range
          • SourceFileLine
          • SourceFileName
          • SourceNodeName
          • Type
        • DeclarationBuilder
          • WithDefaultValue(System.IConvertible)
          • WithDescription(string)
          • WithImplicit(bool)
          • WithName(string)
          • WithRange(Yarn.Compiler.Range)
          • WithSourceFileName(string)
          • WithSourceNodeName(string)
          • WithType(IType)
          • Declaration
        • DeferredTypeDiagnostic
          • CreateDeferredTypeDiagnostic(string,Diagnostic)
          • diagnostic
          • Name
        • Diagnostic
          • Diagnostic(string,ParserRuleContext,string,DiagnosticSeverity)
          • Diagnostic(string,string,DiagnosticSeverity)
          • Diagnostic(string,DiagnosticSeverity)
          • Diagnostic(string,Range,string,DiagnosticSeverity)
          • Equals(object)
          • GetHashCode()
          • ToString()
          • Column
          • Context
          • FileName
          • Line
          • Message
          • Range
          • Severity
          • DiagnosticSeverity
            • Error
            • Info
            • Warning
        • FileParseResult
          • FileParseResult(string,IParseTree,CommonTokenStream)
          • Equals(object)
          • GetHashCode()
          • Name
          • Tokens
          • Tree
        • FunctionTypeBuilder
          • WithParameter(IType)
          • WithReturnType(IType)
          • FunctionType
        • IndentAwareLexer
          • IndentAwareLexer(ICharStream,TextWriter,TextWriter)
          • NextToken()
          • Warnings
          • Warning
            • Message
            • Token
        • InstructionCollectionExtensions
          • GetBasicBlocks(Node)
        • Position
          • Equals(object)
          • GetHashCode()
          • Character
          • Line
        • Range
          • Range()
          • Range(int,int,int,int)
          • Equals(object)
          • GetHashCode()
          • End
          • Start
        • StringInfo
          • fileName
          • isImplicitTag
          • lineNumber
          • metadata
          • nodeName
          • text
          • ToString()
        • Utility
          • AddTagsToLines(string,ICollection<string>)
          • DetermineNodeConnections(string[])
          • ExtractStringBlocks(IEnumerable<Node>)
          • GenerateYarnFileWithDeclarations(IEnumerable<Yarn.Compiler.Declaration>,string,IEnumerable<string>,I
          • ParseSource(string)
      • Yarn.Compiler.Upgrader Namespace
        • LanguageUpgrader
          • Upgrade(UpgradeJob)
        • OrderedSet
          • OrderedSet()
          • OrderedSet(IEqualityComparer<T>)
          • Add(T)
          • Add(IEnumerable<T>)
          • Clear()
          • Contains(T)
          • CopyTo(T[],int)
          • GetEnumerator()
          • Remove(T)
          • Count
          • IsReadOnly
        • TextReplacement
          • Comment
          • OriginalText
          • ReplacementText
          • Start
          • StartLine
          • OriginalLength
          • ReplacementLength
        • UpgradeJob
          • Files
          • UpgradeType
          • UpgradeJob(UpgradeType,IEnumerable<CompilationJob.File>)
        • UpgradeResult
          • Files
          • Diagnostics
          • OutputFile
            • Diagnostics
            • IsNewFile
            • OriginalSource
            • Path
            • Replacements
            • UpgradedSource
        • UpgradeType
          • Version1to2
      • Yarn.Unity Namespace
        • AssemblyExtensions
          • GetLoadableTypes(Assembly)
        • AudioLineProvider
          • AssetLoadCompleteAction
          • audioLanguage
          • completedLoadOperations
          • pendingLoadOperations
          • GetLocalizedLine(Line)
          • PrepareForLines(IEnumerable<string>)
          • LinesAvailable
        • AudioLocalizedLine
          • AudioClip
        • CharacterColorView
          • RunLine(LocalizedLine,Action)
          • CharacterColorData
            • characterName
            • displayColor
        • Culture
          • DisplayName
          • Name
          • NativeName
        • Cultures
          • GetCulture(string)
          • GetCultures()
          • HasCulture(string)
        • DialogueAdvanceInput
          • continueAction
          • continueActionKeyCode
          • continueActionReference
          • continueActionType
          • dialogueView
          • enableActionOnStart
          • Action
          • ContinueActionType
            • InputSystemAction
            • InputSystemActionFromAsset
            • KeyCode
            • None
        • DialogueCharacterNameView
          • onDialogueStarted
          • onNameNotPresent
          • onNameUpdate
          • DialogueStarted()
          • RunLine(LocalizedLine,Action)
        • DialogueOption
          • DialogueOptionID
          • IsAvailable
          • Line
          • TextID
        • DialogueReference
          • nodeName
          • project
          • DialogueReference()
          • DialogueReference(YarnProject,string)
          • IsValid
        • DialogueRunner
          • dialogueViews
          • lineProvider
          • onCommand
          • onDialogueComplete
          • onNodeComplete
          • onNodeStart
          • runSelectedOptionAsLine
          • startAutomatically
          • startNode
          • verboseLogging
          • yarnProject
          • AddCommandHandler(string,Delegate)
          • AddCommandHandler(string,System.Action)
          • AddCommandHandler(string,System.Func<Coroutine>)
          • AddCommandHandler(string,System.Action<T1>)
          • AddCommandHandler(string,System.Func<T1, Coroutine>)
          • AddCommandHandler(string,System.Action<T1, T2>)
          • AddCommandHandler(string,System.Func<T1, T2, Coroutine>)
          • AddCommandHandler(string,System.Action<T1, T2, T3>)
          • AddCommandHandler(string,System.Func<T1, T2, T3, Coroutine>)
          • AddCommandHandler(string,System.Action<T1, T2, T3, T4>)
          • AddCommandHandler(string,System.Func<T1, T2, T3, T4, Coroutine>)
          • AddCommandHandler(string,System.Action<T1, T2, T3, T4, T5>)
          • AddCommandHandler(string,System.Func<T1, T2, T3, T4, T5, Coroutine>)
          • AddCommandHandler(string,System.Action<T1, T2, T3, T4, T5, T6>)
          • AddCommandHandler(string,System.Func<T1, T2, T3, T4, T5, T6, Coroutine>)
          • AddFunction(string,Delegate)
          • AddFunction(string,System.Func<TResult>)
          • AddFunction(string,System.Func<TResult, T1>)
          • AddFunction(string,System.Func<TResult, T1, T2>)
          • AddFunction(string,System.Func<TResult, T1, T2, T3>)
          • AddFunction(string,System.Func<TResult, T1, T2, T3, T4>)
          • AddFunction(string,System.Func<TResult, T1, T2, T3, T4, T5>)
          • AddFunction(string,System.Func<TResult, T1, T2, T3, T4, T5, T6>)
          • Clear()
          • GetTagsForNode(String)
          • LoadStateFromPlayerPrefs(string)
          • NodeExists(string)
          • OnViewRequestedInterrupt()
          • RemoveCommandHandler(string)
          • RemoveFunction(string)
          • ResetDialogue(string)
          • SaveStateToPlayerPrefs(string)
          • SetDialogueViews(DialogueViewBase[])
          • SetInitialVariables(bool)
          • SetProject(YarnProject)
          • SplitCommandText(string)
          • StartDialogue(string)
          • Stop()
          • CurrentNodeName
          • Dialogue
          • IsDialogueRunning
          • VariableStorage
          • StringUnityEvent
        • DialogueViewBase
          • requestInterrupt
          • DialogueComplete()
          • DialogueStarted()
          • DismissLine(Action)
          • InterruptLine(LocalizedLine,Action)
          • RunLine(LocalizedLine,Action)
          • RunOptions(DialogueOption[],Action<int>)
          • UserRequestedViewAdvancement()
        • Effects
          • FadeAlpha(CanvasGroup,float,float,float,CoroutineInterruptToken)
          • Typewriter(TextMeshProUGUI,float,Action,CoroutineInterruptToken)
          • CoroutineInterruptToken
            • Complete()
            • Interrupt()
            • Start()
            • CanInterrupt
            • WasInterrupted
        • InMemoryVariableStorage
          • showDebug
          • Clear()
          • Contains(string)
          • GetAllVariables()
          • GetDebugList()
          • SetAllVariables(Dictionary<string, float>,Dictionary<string, string>,Dictionary<string, bool>,bool)
          • SetValue(string,bool)
          • SetValue(string,float)
          • SetValue(string,string)
          • TryGetValue(string,T)
        • LanguageAttribute
        • LineMetadata
          • GetLineIDs()
          • GetMetadata(string)
        • LineProviderBehaviour
          • textLanguageCode
          • GetLocalizedLine(Yarn.Line)
          • PrepareForLines(IEnumerable<string>)
          • Start()
          • LinesAvailable
          • YarnProject
        • LineView
          • DismissLine(Action)
          • InterruptLine(LocalizedLine,Action)
          • OnContinueClicked()
          • RunLine(LocalizedLine,Action)
          • UserRequestedViewAdvancement()
        • Localization
          • AddLocalizedObject(string,T)
          • AddLocalizedObjects(IEnumerable<KeyValuePair<string, T>>)
          • AddLocalizedString(string,string)
          • AddLocalizedStrings(IEnumerable<KeyValuePair<string, string>>)
          • AddLocalizedStrings(IEnumerable<StringTableEntry>)
          • Clear()
          • ContainsLocalizedObject(string)
          • ContainsLocalizedString(string)
          • GetLineIDs()
          • GetLocalizedObject(string)
          • GetLocalizedString(string)
          • SetLocalizedObject(string,T)
          • ContainsLocalizedAssets
          • LocaleCode
          • UsesAddressableAssets
        • LocalizedLine
          • Metadata
          • RawText
          • Substitutions
          • TextID
          • CharacterName
          • Text
          • TextWithoutCharacterName
        • OptionsListView
          • Reset()
          • RunLine(LocalizedLine,Action)
          • RunOptions(DialogueOption[],Action<int>)
          • Start()
        • OptionView
          • OnOptionSelected
          • InvokeOptionSelected()
          • OnPointerClick(PointerEventData)
          • OnPointerEnter(PointerEventData)
          • OnSubmit(BaseEventData)
          • Option
        • SampleRenderDetector
        • SerializedDictionary
          • Add(TKey,TValue)
          • Add(KeyValuePair<TKey, TValue>)
          • Clear()
          • Contains(KeyValuePair<TKey, TValue>)
          • ContainsKey(TKey)
          • CopyTo(KeyValuePair<TKey, TValue>[],int)
          • GetEnumerator()
          • Remove(TKey)
          • Remove(KeyValuePair<TKey, TValue>)
          • TryGetValue(TKey,TValue)
          • Count
          • IsReadOnly
          • this[TKey key]
          • Keys
          • Values
        • StringTableEntry
          • Comment
          • File
          • ID
          • Language
          • LineNumber
          • Lock
          • Node
          • Text
          • StringTableEntry(StringTableEntry)
          • CreateCSV(IEnumerable<StringTableEntry>)
          • Equals(object)
          • GetHashCode()
          • ParseFromCSV(string)
          • ToString()
        • TextLineProvider
          • GetLocalizedLine(Yarn.Line)
          • PrepareForLines(IEnumerable<string>)
          • LinesAvailable
        • VariableStorageBehaviour
          • Clear()
          • Contains(string)
          • GetAllVariables()
          • SetAllVariables(System.Collections.Generic.Dictionary<string,float>,System.Collections.Generic.Dicti
          • SetValue(string,bool)
          • SetValue(string,float)
          • SetValue(string,string)
          • TryGetValue(string,T)
        • VoiceOverView
          • audioSource
          • fadeOutTimeOnLineFinish
          • waitTimeAfterLineComplete
          • waitTimeBeforeLineStart
          • DismissLine(Action)
          • InterruptLine(LocalizedLine,Action)
          • RunLine(LocalizedLine,Action)
          • UserRequestedViewAdvancement()
        • YarnActionAttribute
          • Name
        • YarnCommandAttribute
          • CommandString
          • Injector
        • YarnFunctionAttribute
          • FunctionName
        • YarnLinesAsCanvasText
          • stringsToViews
          • yarnProject
          • OnTextLanguagePreferenceChanged()
          • StringObjectDictionary
        • YarnParameterAttribute
          • Injector
        • YarnProject
          • baseLocalization
          • compiledYarnProgram
          • lineMetadata
          • localizations
          • searchAssembliesForActions
          • GetLocalization(string)
          • GetProgram()
          • Program
        • YarnStateInjectorAttribute
          • Injector
Powered by GitBook

Community

  • Discord
  • Bluesky
  • Mastodon
  • Itch

Yarn Spinner® and Secret Lab® are trade marks of Secret Lab Pty. Ltd., and are used by Yarn Spinner Pty. Ltd. under license.

On this page

Was this helpful?

Edit on GitHub
Export as PDF
  1. Working With Unity
  2. Components

Variable Storage

PreviousDialogue Advance InputNextIn-Memory Variable Storage

Last updated 1 year ago

Was this helpful?

Variable Storage components are responsible for storing and retrieving the values of variables in your Yarn scripts. When a Yarn script needs to get the value of a variable, it asks the Variable Storage for it; when a Yarn script sets the value of a variable, the Variable Storage is given the value.

Each game has different requirements for how variables are stored, which means that Yarn Spinner doesn't make any assumptions how the information is actually stored on disk. Instead, you can create your own custom Variable Storage script that implements the methods that Yarn Spinner needs.

If you don't have a game save system, you can use the component. This is a simple Variable Storage component that's built into Yarn Spinner.

The In-Memory Variable Storage stores everything in memory; when the game ends, all variables that have been stored are erased.

If you don't connect a Variable Storage to your Dialogue Runner, it will create an In-Memory Variable Storage when the game starts, and use that.

🧱
In-Memory Variable Storage