SpineData

Container for loaded Spine animation data, including skeleton structure and texture atlas.

SpineData represents the shared, immutable data loaded from Spine export files (.json/.skel) and their associated texture atlases. Multiple Spine instances can share the same SpineData, making it efficient to have many instances of the same animation.

This class manages the lifecycle of Spine skeleton data and ensures proper cleanup of resources when no longer needed. It's typically created automatically when loading Spine assets through the asset system.

// SpineData is usually created internally when loading assets
assets.add(Spines.HERO);
assets.load(function(success) {
    if (success) {
        var spineData = assets.spine(Spines.HERO);
        // Create multiple Spine instances from the same data
        var hero1 = new Spine();
        hero1.spineData = spineData;
        var hero2 = new Spine();
        hero2.spineData = spineData;
    }
});

Instance Members #

The Spine skeleton data containing bone hierarchy, slots, animations, and skins. This is the core data structure that defines the animation's structure and behavior. It's shared between all Spine instances using this SpineData.

The texture atlas containing all images used by this Spine animation. The atlas maps region names to texture coordinates, allowing the animation to reference specific parts of texture pages.

Optional reference to the SpineAsset that created this data. When set, the asset will be destroyed along with this SpineData, ensuring proper cleanup of all related resources.

Finds the index of a slot by its name.

Slots are the containers in Spine that hold attachments (images, meshes, etc.). Each slot has a unique name and index within the skeleton. This method provides a way to look up a slot's index, which can be more efficient for repeated operations than using the name directly.

Destroys this SpineData instance and releases all associated resources.

This method ensures proper cleanup by:

• Destroying the associated SpineAsset if one exists
• Disposing of the texture atlas to free GPU memory
• Clearing all references to allow garbage collection

After calling destroy(), this SpineData instance should not be used anymore. Any Spine instances still using this data may exhibit undefined behavior.

Creates a new SpineData instance from a texture atlas and JSON data.

Metadata #