Class Variable

A Variable is an object storing a value (number or a string) or children variables.

Constructors

constructor

Methods

add addChild castTo clearChildren clone concatenateString copy disableSynchronization div fromJSON fromJSObject getAllChildren getAllChildrenArray getAsBoolean getAsNumber getAsString getChild getChildAt getChildNamed getChildrenCount getPlayerOwnership getType getValue hasChild isNumber isPrimitive isPrimitive isStructure isUndefinedInContainer mul pushValue pushVariableCopy reinitialize removeAtIndex removeChild replaceChildren replaceChildrenArray setBoolean setNumber setPlayerOwnership setString setUndefinedInContainer setValue sub toJSObject toggle concatenate getAsNumberOrString

Constructors

constructor

  • new Variable(varData?): Variable

  • Parameters

    • Optional varData: Readonly<{
          children?: (Readonly<{ name?: string | undefined; value?: string | number | boolean | undefined; children?: Readonly<...>[] | undefined; type?: VariableType | undefined; }>)[];
          name?: string;
          type?: VariableType;
          value?: string | number | boolean;
      }>

      The optional initial content of the variable.

    Returns Variable

Methods

add

  • add(val): void

  • Add the given number to the variable value

    Parameters

    • val: number

      the number to add

    Returns void

addChild

  • addChild(childName, childVariable): this

  • Add a child variable with the specified name.

    If there is an existing child variable with this name, it is erased.

    Parameters

    • childName: string

      The name of the variable to add

    • childVariable: Variable

      The variable to add as a child

    Returns this

    The variable (for chaining calls)

castTo

  • castTo(newType): void

  • Converts the variable into another type.

    Parameters

    • newType: VariableType

      The new type of the variable

    Returns void

clearChildren

clone

concatenateString

  • concatenateString(str): void

  • Concatenate the given string at the end of the variable value

    Parameters

    • str: string

      the string to append

    Returns void

Static copy

  • copy(source, target, merge?): Variable

  • Deeply copies a variable into another.

    Parameters

    • source: Variable

      The source variable.

    • target: Variable

      The target variable.

    • Optional merge: boolean

      Should the target be merged with the source, or be an exact copy?

    Returns Variable

    The target variable.

disableSynchronization

div

  • div(val): void

  • Divide the variable value by the given number

    Parameters

    • val: number

      the divisor

    Returns void

fromJSON

  • fromJSON(json): this

  • Unserialize a JSON string into this variable.

    This just logs an error if the JSON is invalid.

    Parameters

    • json: string

      A JSON string.

    Returns this

fromJSObject

  • fromJSObject(obj): this

  • Converts a JavaScript object into a value compatible with GDevelop variables and store it inside this variable.

    Parameters

    • obj: any

      The value to convert.

    Returns this

getAllChildren

  • getAllChildren(): Children

  • Return the object containing all the children of the variable.

    Returns Children

    All the children of the variable

getAllChildrenArray

getAsBoolean

  • getAsBoolean(): boolean

  • Get the value of the variable, considered as a boolean

    Returns boolean

    The boolean value of the variable.

getAsNumber

  • getAsNumber(): number

  • Get the value of the variable, considered as a number

    Returns number

    The number stored in the variable

getAsString

  • getAsString(): string

  • Get the value of the variable, considered as a string

    Returns string

    The string stored in the variable

getChild

  • getChild(childName): Variable

  • Get the child with the specified name or at the specified index.

    If the variable is an array, prefer getChildAt. If the variable is a structure, prefer getChildNamed.

    If the variable has not the specified child, an empty variable with the specified name (or index) is added as child.

    Parameters

    • childName: string | number

    Returns Variable

    The child variable

getChildAt

getChildNamed

  • getChildNamed(childName): Variable

  • Get the child with the specified name.

    If the variable has not the specified child, an empty variable with the specified name is added as child.

    Parameters

    • childName: string

    Returns Variable

    The child variable

getChildrenCount

getPlayerOwnership

getType

getValue

  • getValue(): string | number | boolean

  • Gets the primitive value using the getter of the current type.

    Returns string | number | boolean

hasChild

  • hasChild(childName): boolean

  • Return the child in a variable.

    Check if the variable has the specified children

    Parameters

    • childName: string

    Returns boolean

    true if variable has the children with the specified name

isNumber

Static isPrimitive

  • isPrimitive(type): type is "string" | "number" | "boolean"

  • Return true if the variable type is a primitive type.

    Parameters

    • type: VariableType

    Returns type is "string" | "number" | "boolean"

isPrimitive

isStructure

isUndefinedInContainer

  • isUndefinedInContainer(): boolean

  • Check if the variable must be considered as not existing in its container (usually a gdjs.VariablesContainer).

    Returns boolean

    true if the container must consider that the variable does not exist.

mul

  • mul(val): void

  • Multiply the variable value by the given number

    Parameters

    • val: number

      the factor

    Returns void

pushValue

  • pushValue(value): void

  • Pushes a value into the array.

    Parameters

    • value: string | number | boolean

    Returns void

pushVariableCopy

reinitialize

  • reinitialize(varData?): void

  • Parameters

    • Optional varData: Readonly<{
          children?: Readonly<({ name?: string | undefined; value?: string | number | boolean | undefined; children?: Readonly<...>[] | undefined; type?: VariableType | undefined; })>[];
          name?: string;
          type?: VariableType;
          value?: string | number | boolean;
      }>

    Returns void

removeAtIndex

  • removeAtIndex(index): void

  • Removes a variable at a given index of the array.

    Parameters

    • index: number

    Returns void

removeChild

  • removeChild(childName): void

  • Remove the child with the specified name.

    If the variable has not the specified child, nothing is done.

    Parameters

    • childName: string

      The name of the child to be removed

    Returns void

replaceChildren

  • replaceChildren(newChildren): void

  • Replaces all the children with a new map of children.

    Parameters

    • newChildren: Children

      The map of new children.

    Returns void

replaceChildrenArray

  • replaceChildrenArray(newChildren): void

  • Replaces all the children with a new array of children.

    Parameters

    • newChildren: Variable[]

      The array of new children.

    Returns void

setBoolean

  • setBoolean(newValue): void

  • Change the value of the variable, considered as a boolean

    Parameters

    • newValue: boolean

      The new boolean to be set.

    Returns void

setNumber

  • setNumber(newValue): void

  • Change the value of the variable, considered as a number

    Parameters

    • newValue: number

      The new value to be set

    Returns void

setPlayerOwnership

setString

  • setString(newValue): void

  • Change the value of the variable, considered as a string

    Parameters

    • newValue: string

      The new string to be set

    Returns void

setUndefinedInContainer

  • setUndefinedInContainer(): void

  • Used (usually by gdjs.VariablesContainer) to set that the variable must be considered as not existing in the container.

    Returns void

setValue

  • setValue(newValue): void

  • Sets the primitive value using the setter of the current type.

    Parameters

    • newValue: string | number | boolean

      The primitive value of the variable.

    Returns void

sub

  • sub(val): void

  • Subtract the given number to the variable value

    Parameters

    • val: number

      the number to subtract

    Returns void

toJSObject

  • toJSObject(): any

  • Converts this variable into an equivalent JavaScript object.

    Returns any

    A JavaScript object equivalent to the variable.

toggle

Private concatenate

Private getAsNumberOrString

  • getAsNumberOrString(): string | number
  • Private

    Get the value of the variable, as a number if it's one, or as a string (if it's a string or something else)

    In most cases, prefer calling getAsNumber or getAsString directly. This is a fallback in case a variable type can't be known statically for sure, like getValue.

    Returns string | number

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