Foundry Virtual Tabletop - API Documentation - Version 14
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    Class BitMask

    Create a new BitMask instance.

    An object containing valid states and their corresponding initial boolean values (default is null).

    Hierarchy

    • Number
      • BitMask
    Index

    Properties

    states: Record<string, string>

    The enum associated with this structure.

    Accessors

    • get isEmpty(): boolean

      True if this bitmask is empty (no active states).

      Returns boolean

    Methods

    • Add a state to the bitmask.

      Parameters

      • state: string

        The state to add.

      Returns void

      Throws an error if the provided state is not valid.

    • Clear the bitmask, setting all states to inactive.

      Returns void

    • Creates a clone of this BitMask instance.

      Returns BitMask

      A new BitMask instance with the same value and valid states as this instance.

    • Check if a specific state is active.

      Parameters

      • state: string

        The state to check.

      Returns boolean

      True if the state is active, false otherwise.

    • Checks if two bitmasks structures are compatible (the same valid states).

      Parameters

      • otherBitMask: BitMask

        The bitmask structure to compare with.

      Returns boolean

      True if the two bitmasks have the same structure, false otherwise.

    • Remove a state from the bitmask.

      Parameters

      • state: string

        The state to remove.

      Returns void

      Throws an error if the provided state is not valid.

    • Toggle the state of a specific state in the bitmask.

      Parameters

      • state: string

        The state to toggle.

      • Optionalenabled: boolean

        Toggle on (true) or off (false)? If undefined, the state is switched automatically.

      Returns number | undefined

      Throws an error if the provided state is not valid.

    • Serializes the bitmask to a JSON string.

      Returns string

      The JSON string representing the bitmask.

    • Convert value of this BitMask to object representation according to structure.

      Returns Object

      The data represented by the bitmask.

    • Get a string representation of the bitmask in binary format.

      Returns string

      The string representation of the bitmask.

    • Get the current value of the bitmask.

      Returns number

      The current value of the bitmask.

    • Creates a new BitMask instance from a JSON string.

      Parameters

      • jsonString: string

        The JSON string representing the bitmask.

      Returns BitMask

      A new BitMask instance created from the JSON string.

    • Generates shader constants based on the provided states.

      Parameters

      • states: string[]

        An array containing valid states.

      Returns string

      Shader bit mask constants generated from the states.