updatePointer method

void updatePointer(
  1. dynamic event
)

Implementation

void updatePointer(event) {
  final box = listenableKey.currentContext?.findRenderObject() as RenderBox;
  final size = box.size;
  //final local = box.globalToLocal(const Offset(0, 0));
  _pointer.x = ((event.clientX) / size.width * 2 - 1)*ratio.x;
  _pointer.y = (-(event.clientY) / size.height * 2 + 1)*ratio.y;
}