There is a new version of this project written in TypeScript. https://github.com/flyover/spriter.ts

spriter.js

A JavaScript API for the Spriter SCML/SCON animation data format.

https://cdn.rawgit.com/flyover/spriter.js/master/demo/index.html

Supported Features

• Basic animations
• Bone animations
• All curve types (Instant, Linear, Quadratic, Cubic, Quartic, Quintic, Bezier)
• Points
• Collision Rectangles
• SubEntities
• Events
• Sounds
• Variables
• Tags
• Character maps
• Animation Blending

How to use it

In the initialization:

var scon = JSON.parse(scon_text); // read and parse SCON file
var data = new spriter.Data().load(scon); // create and load Spriter data from SCON file
var pose = new spriter.Pose(data); // create Spriter pose and attach data
pose.setEntity("player"); // set entity by name
pose.setAnim("idle"); // set animation by name

In the animation loop:

var dt = 1000 / 60; // time step in milliseconds
pose.update(dt); // accumulate time
pose.strike(); // process time slice

Refer to the demo for how to blend animations, draw images, play sounds and respond to events, access tags and variables, etc.