Allows user to select animation, stop the animation, and determine how many frames they want in the animation.
This PR also moves spritec from a function called from JavaScript into a class in order to reuse resources (i.e. not creating a new threadrendercontext every time)
Allows user to select animation, stop the animation, and determine how many frames they want in the animation.
This PR also moves spritec from a function called from JavaScript into a class in order to reuse resources (i.e. not creating a new threadrendercontext every time)