Remove global .frc971.control_loops.drivetrain_queue object

Change-Id: I424f09dcc8bc210e49cbdc805d1a423a72332617
diff --git a/y2016/actors/autonomous_actor.cc b/y2016/actors/autonomous_actor.cc
index e94cccd..01650c4 100644
--- a/y2016/actors/autonomous_actor.cc
+++ b/y2016/actors/autonomous_actor.cc
@@ -18,7 +18,6 @@
 namespace y2016 {
 namespace actors {
 using ::aos::monotonic_clock;
-using ::frc971::control_loops::drivetrain_queue;
 namespace chrono = ::std::chrono;
 namespace this_thread = ::std::this_thread;
 
@@ -245,20 +244,20 @@
       last_angle = vision_status_fetcher_->horizontal_angle;
     }
 
-    drivetrain_queue.status.FetchLatest();
-    drivetrain_queue.goal.FetchLatest();
+    drivetrain_status_fetcher_.Fetch();
+    drivetrain_goal_fetcher_.Fetch();
 
-    if (drivetrain_queue.status.get() && drivetrain_queue.goal.get()) {
-      const double left_goal = drivetrain_queue.goal->left_goal;
-      const double right_goal = drivetrain_queue.goal->right_goal;
+    if (drivetrain_status_fetcher_.get() && drivetrain_goal_fetcher_.get()) {
+      const double left_goal = drivetrain_goal_fetcher_->left_goal;
+      const double right_goal = drivetrain_goal_fetcher_->right_goal;
       const double left_current =
-          drivetrain_queue.status->estimated_left_position;
+          drivetrain_status_fetcher_->estimated_left_position;
       const double right_current =
-          drivetrain_queue.status->estimated_right_position;
+          drivetrain_status_fetcher_->estimated_right_position;
       const double left_velocity =
-          drivetrain_queue.status->estimated_left_velocity;
+          drivetrain_status_fetcher_->estimated_left_velocity;
       const double right_velocity =
-          drivetrain_queue.status->estimated_right_velocity;
+          drivetrain_status_fetcher_->estimated_right_velocity;
 
       if (vision_valid && ::std::abs(last_angle) < 0.02 &&
           ::std::abs((left_goal - right_goal) -
@@ -496,14 +495,14 @@
   if (!WaitForAboveAngle(above)) return;
   // Ok, we are good now.  Compensate by moving the goal by the error.
   // Should be here at 2.7
-  drivetrain_queue.status.FetchLatest();
-  if (drivetrain_queue.status.get()) {
+  drivetrain_status_fetcher_.Fetch();
+  if (drivetrain_status_fetcher_.get()) {
     const double left_error =
         (initial_drivetrain_.left -
-         drivetrain_queue.status->estimated_left_position);
+         drivetrain_status_fetcher_->estimated_left_position);
     const double right_error =
         (initial_drivetrain_.right -
-         drivetrain_queue.status->estimated_right_position);
+         drivetrain_status_fetcher_->estimated_right_position);
     const double distance_to_go = (left_error + right_error) / 2.0;
     const double distance_compensation =
         goal_distance - tip_distance - distance_to_go;
@@ -558,7 +557,7 @@
       return;
     }
     phased_loop.SleepUntilNext();
-    drivetrain_queue.status.FetchLatest();
+    drivetrain_status_fetcher_.Fetch();
     if (IsDriveDone()) {
       return;
     }
diff --git a/y2016/actors/vision_align_actor.cc b/y2016/actors/vision_align_actor.cc
index 1110f92..f42aad9 100644
--- a/y2016/actors/vision_align_actor.cc
+++ b/y2016/actors/vision_align_actor.cc
@@ -20,14 +20,17 @@
 
 namespace y2016 {
 namespace actors {
-using ::frc971::control_loops::drivetrain_queue;
 
 VisionAlignActor::VisionAlignActor(::aos::EventLoop *event_loop)
     : aos::common::actions::ActorBase<actors::VisionAlignActionQueueGroup>(
           event_loop, ".y2016.actors.vision_align_action"),
       vision_status_fetcher_(
           event_loop->MakeFetcher<::y2016::vision::VisionStatus>(
-              ".y2016.vision.vision_status")) {}
+              ".y2016.vision.vision_status")),
+      drivetrain_goal_sender_(
+          event_loop
+              ->MakeSender<::frc971::control_loops::DrivetrainQueue::Goal>(
+                  ".frc971.control_loops.drivetrain_queue.goal")) {}
 
 bool VisionAlignActor::RunAction(
     const actors::VisionAlignActionParams & /*params*/) {
@@ -64,15 +67,16 @@
     const double left_current = vision_status.drivetrain_left_position;
     const double right_current = vision_status.drivetrain_right_position;
 
-    if (!drivetrain_queue.goal.MakeWithBuilder()
-             .wheel(0.0)
-             .throttle(0.0)
-             .highgear(false)
-             .quickturn(false)
-             .controller_type(1)
-             .left_goal(left_current + side_distance_change)
-             .right_goal(right_current - side_distance_change)
-             .Send()) {
+    auto drivetrain_message = drivetrain_goal_sender_.MakeMessage();
+    drivetrain_message->wheel = 0.0;
+    drivetrain_message->throttle = 0.0;
+    drivetrain_message->highgear = false;
+    drivetrain_message->quickturn = false;
+    drivetrain_message->controller_type = 1;
+    drivetrain_message->left_goal = left_current + side_distance_change;
+    drivetrain_message->right_goal = right_current - side_distance_change;
+
+    if (!drivetrain_message.Send()) {
       LOG(WARNING, "sending drivetrain goal failed\n");
     }
   }
diff --git a/y2016/actors/vision_align_actor.h b/y2016/actors/vision_align_actor.h
index f92f507..586f7d0 100644
--- a/y2016/actors/vision_align_actor.h
+++ b/y2016/actors/vision_align_actor.h
@@ -5,6 +5,7 @@
 
 #include "aos/actions/actions.h"
 #include "aos/actions/actor.h"
+#include "frc971/control_loops/drivetrain/drivetrain.q.h"
 #include "frc971/control_loops/state_feedback_loop.h"
 #include "y2016/actors/vision_align_action.q.h"
 #include "y2016/vision/vision.q.h"
@@ -29,6 +30,8 @@
 
  private:
   ::aos::Fetcher<::y2016::vision::VisionStatus> vision_status_fetcher_;
+  ::aos::Sender<::frc971::control_loops::DrivetrainQueue::Goal>
+      drivetrain_goal_sender_;
 };
 
 }  // namespace actors