import '../widget_ruler.dart';
import 'game_std_controller.dart';

class LayerMapRuler extends LayerView<GameStdController> {
  const LayerMapRuler({super.key});

  @override
  Widget build(BuildContext context) {
    return Obx(() {
      if (viewModel.isShowRuler.value) {
        final mapScale = viewModel.mapScale;
        if (mapScale == 0) {
          return const SizedBox();
        }

        var height = context.height / 2;
        var hideHeight = 0.0;

        if (viewModel.isMapRotateAtCompassCenter.value) {
          height = viewModel.compassCenter.dy;
          hideHeight = viewModel.compassDiameter / 2 + 1;
        }

        return Container(
            alignment: Alignment.topCenter,
            padding: EdgeInsets.only(top: context.mediaQueryPadding.top),
            height: height,
            child: Ruler(hideHeight: hideHeight, mapScale: mapScale));
      } else {
        return const SizedBox();
      }
    });
  }
}