Function set

packages/troika-2d/src/facade/Object2DFacade.js:158–164

(value)

      return (privateProp in this) ? this[privateProp] : defaultValue
    },
    set(value) {
      let lastVal = this[privateProp]
      if (lastVal !== value) {
        this[privateProp] = value
        this._matrixChanged = true
      }
    }
  })
}
defineTransformProp('x', 0)