0.4.4 spine support

[lancety]

issues:

• Spine2d, Spine3d did not exist in the npm package after npm install pixi-projection
• Could not find guide about how to use Spine2d in pixi v6

@ivanpopelyshev , do you have time to help, is there any working demo for spine sprite? Thanks~

[lancety]

updates:

• Spine2d not exist in npm package - I made a Spine2D file in my project, same as https://github.com/pixijs/pixi-projection/blob/e3655250cdb9c14990e777996f572f5a4a47880e/spine/Spine2d.ts
• how to use - replace the 'new' class of 'Spine' with 'Spine2D', for making isomatric rotation, add spine2DInstance.proj.affine = AFFINE.AXIS_X;. same as example page of https://pixijs.io/examples/#/plugin-projection/iso-basic.js

New issues:

• by using projection Spine2D, the pixi chrome debug plugin now stopped working, 'reconnect' the plugin to a page, will cause page freeze. Tested newest plugin version updated in May 2022.

Now I need to add container to the Spine2DInstance, to make it looks not stretched on Y axies - by adding scale.y to container

[ivanpopelyshev]

Interesting, I'll look into it

[lancety]

the logic is testing instanceof this.constructors[251] which is 'toLocal' function, the function is belong to pixi-projection Container2d class.
the error is TypeError: Function has non-object prototype 'undefined' in instanceof check

[lancety]

seems it is a sync process which always break render. so totally could not use pixi plugin when using pixi-projection.
In my logic, I did not use Container2d, only used Sprite2d and Spine2d