Convert control_loops::shooter::shooter_queue to event loops.

Change-Id: Ie11efa85250288b7f7d64ba7ace6ae6bb92a0a90
diff --git a/y2016/wpilib_interface.cc b/y2016/wpilib_interface.cc
index 3167587..d2d299f 100644
--- a/y2016/wpilib_interface.cc
+++ b/y2016/wpilib_interface.cc
@@ -54,7 +54,6 @@
 #include "y2016/queues/ball_detector.q.h"
 
 using ::frc971::control_loops::drivetrain_queue;
-using ::y2016::control_loops::shooter::shooter_queue;
 using ::y2016::control_loops::superstructure_queue;
 using aos::make_unique;
 using ::frc971::wpilib::LoopOutputHandler;
@@ -154,7 +153,9 @@
                 ".y2016.sensors.ball_detector")),
         auto_mode_sender_(
             event_loop->MakeSender<::frc971::autonomous::AutonomousMode>(
-                ".frc971.autonomous.auto_mode")) {
+                ".frc971.autonomous.auto_mode")),
+        shooter_position_sender_(event_loop->MakeSender<ShooterQueue::Position>(
+            ".y2016.control_loops.shooter.shooter_queue.position")) {
     // Set it to filter out anything shorter than 1/4 of the minimum pulse width
     // we should ever see.
     UpdateFastEncoderFilterHz(kMaxDrivetrainShooterEncoderPulsesPerSecond);
@@ -273,7 +274,7 @@
   void RunDmaIteration() {
     const auto &values = constants::GetValues();
     {
-      auto shooter_message = shooter_queue.position.MakeMessage();
+      auto shooter_message = shooter_position_sender_.MakeMessage();
       shooter_message->theta_left =
           shooter_translate(-shooter_left_encoder_->GetRaw());
       shooter_message->theta_right =
@@ -319,6 +320,7 @@
  private:
   ::aos::Sender<::y2016::sensors::BallDetector> ball_detector_sender_;
   ::aos::Sender<::frc971::autonomous::AutonomousMode> auto_mode_sender_;
+  ::aos::Sender<ShooterQueue::Position> shooter_position_sender_;
 
   ::std::unique_ptr<::frc::AnalogInput> drivetrain_left_hall_,
       drivetrain_right_hall_;