message: Adds the polygon offset check to State
diff: @@ -182,6 +182,8 @@ export default class StateSystem extends System
  */
  setOffset(value)
  {
  + this.updateCheck(StateSystem.checkPolygonOffset, value);
  +
  this.gl[value ? 'enable' : 'disable'](this.gl.POLYGON_OFFSET_FILL);
  }
  @@ -314,5 +316,16 @@ export default class StateSystem extends System
  system.setBlendMode(state.blendMode);
  }
  - // TODO - add polygon offset?
  + /**
  + * A private little wrapper function that we call to check the polygon offset.
  + *
  + * @static
  + * @private
  + * @param {PIXI.StateSystem} System the System to perform the state check on
  + * @param {PIXI.State} state the state that the blendMode will pulled from
  + */
  + static checkPolygonOffset(system, state)
  + {
  + system.setPolygonOffset(state.polygonOffset, 0);
  + }
  }
  