# L160HeadingHoldOpMode

What each lesson's patch does to this file, in the order the lessons come, from
applying `solutions/` on `solutions-auto-schedules.1`. A line marked + is new, and a line marked -
is gone; each number is the line's place in the file after the lesson.

## L160

```{code-block} diff
:class: answer-diff

--- mytry/L160HeadingHoldOpMode.java  (before L160)
+++ mytry/L160HeadingHoldOpMode.java  (after L160)
@@ lines 8 to 16 @@
    8
    9 import org.firstinspires.ftc.teamcode.base.CorbelsMecanum;
   10 import org.firstinspires.ftc.teamcode.base.CorbelsTeleOp;
+  11 import org.firstinspires.ftc.teamcode.base.HeadingHold;
   12 import org.firstinspires.ftc.teamcode.base.Tracker;
+  13 import org.firstinspires.ftc.teamcode.pedro.Constants;
   14
   15 /**
   16  * L160: hold the heading the driver left. Let go of the turn stick and the
@@ lines 36 to 42 @@
   36     boolean previousButtonA;
   37
   38     CorbelsMecanum drivetrain;
+  39     HeadingHold hold = new HeadingHold(Constants.foresightConfig.headingFeedback.get());
   40
   41     // 'public' to match the parent class. 'public' allows access from any code.
   42     @Override
@@ lines 86 to 93 @@
   86         // When on L160S040, see
   87         // https://msb-stitt.github.io/ftc31459-26-27-biobuzz/guide/tasks/l160.html#l160s040
   88         // for what to do here.
+  89         turn = hold.turn(follower, turn);
+  90         Tracker.publish("heading/holding", hold.target() != null);
   91
   92         double strafe = deadband(-leftStickX, band);
   93         strafe = signedSquared(strafe);
```