Fixed Austin's comments.

Austin gave me verbal last-minute-bugs to fix, so this commit is trying to get rid of such bugs.
Also, I squashed 'Changed fender shot to long without IMU'.

Change-Id: Iae7bc8006f437bcfc20e72384871858c42d2a350
diff --git a/y2014/joystick_reader.cc b/y2014/joystick_reader.cc
index fcfe33c..d3af8a4 100644
--- a/y2014/joystick_reader.cc
+++ b/y2014/joystick_reader.cc
@@ -195,31 +195,31 @@
           data.PosEdge(kDriveControlLoopEnable2)) {
         if (drivetrain_queue.position.FetchLatest() &&
             gyro_reading.FetchLatest()) {
-          distance = (drivetrain_queue.position->left_encoder +
+          distance_ = (drivetrain_queue.position->left_encoder +
                       drivetrain_queue.position->right_encoder) /
                          2.0 -
                      throttle * kThrottleGain / 2.0;
-          angle = gyro_reading->angle;
-          filtered_goal_distance = distance;
+          angle_ = gyro_reading->angle;
+          filtered_goal_distance_ = distance_;
         }
       }
       is_control_loop_driving = true;
 
       // const double gyro_angle = Gyro.View().angle;
-      const double goal_theta = angle - wheel * 0.27;
-      const double goal_distance = distance + throttle * kThrottleGain;
+      const double goal_theta = angle_ - wheel * 0.27;
+      const double goal_distance = distance_ + throttle * kThrottleGain;
       const double robot_width = 22.0 / 100.0 * 2.54;
       const double kMaxVelocity = 0.6;
-      if (goal_distance > kMaxVelocity * 0.02 + filtered_goal_distance) {
-        filtered_goal_distance += kMaxVelocity * 0.02;
+      if (goal_distance > kMaxVelocity * 0.02 + filtered_goal_distance_) {
+        filtered_goal_distance_ += kMaxVelocity * 0.03;
       } else if (goal_distance <
-                 -kMaxVelocity * 0.02 + filtered_goal_distance) {
-        filtered_goal_distance -= kMaxVelocity * 0.02;
+                 -kMaxVelocity * 0.02 + filtered_goal_distance_) {
+        filtered_goal_distance_ -= kMaxVelocity * 0.02;
       } else {
-        filtered_goal_distance = goal_distance;
+        filtered_goal_distance_ = goal_distance;
       }
-      left_goal = filtered_goal_distance - robot_width * goal_theta / 2.0;
-      right_goal = filtered_goal_distance + robot_width * goal_theta / 2.0;
+      left_goal = filtered_goal_distance_ - robot_width * goal_theta / 2.0;
+      right_goal = filtered_goal_distance_ + robot_width * goal_theta / 2.0;
       is_high_gear_ = false;
 
       LOG(DEBUG, "Left goal %f Right goal %f\n", left_goal, right_goal);
@@ -501,9 +501,9 @@
   double separation_angle_, shot_separation_angle_;
   double velocity_compensation_;
   // Distance, angle, and filtered goal for closed loop driving.
-  double distance;
-  double angle;
-  double filtered_goal_distance;
+  double distance_;
+  double angle_;
+  double filtered_goal_distance_;
   double intake_power_;
   bool was_running_;
   bool moving_for_shot_ = false;
diff --git a/y2014_bot3/joystick_reader.cc b/y2014_bot3/joystick_reader.cc
index 22610ae..4103b0c 100644
--- a/y2014_bot3/joystick_reader.cc
+++ b/y2014_bot3/joystick_reader.cc
@@ -72,8 +72,8 @@
     if (data.PosEdge(kTurn1) || data.PosEdge(kTurn2)) {
       drivetrain_queue.status.FetchLatest();
       if (drivetrain_queue.status.get()) {
-        left_goal = drivetrain_queue.status->estimated_left_position;
-        right_goal = drivetrain_queue.status->estimated_right_position;
+        left_goal_ = drivetrain_queue.status->estimated_left_position;
+        right_goal_ = drivetrain_queue.status->estimated_right_position;
       }
     }
     if (data.IsPressed(kTurn1) || data.IsPressed(kTurn2)) {
@@ -86,8 +86,8 @@
              .highgear(is_high_gear_)
              .quickturn(data.IsPressed(kQuickTurn))
              .control_loop_driving(is_control_loop_driving)
-             .left_goal(left_goal - wheel * 0.5 + throttle * 0.3)
-             .right_goal(right_goal + wheel * 0.5 + throttle * 0.3)
+             .left_goal(left_goal_ - wheel * 0.5 + throttle * 0.3)
+             .right_goal(right_goal_ + wheel * 0.5 + throttle * 0.3)
              .left_velocity_goal(0)
              .right_velocity_goal(0)
              .Send()) {
@@ -138,8 +138,8 @@
 
   bool is_high_gear_;
   // Turning goals.
-  double left_goal;
-  double right_goal;
+  double left_goal_;
+  double right_goal_;
 
   ::aos::util::SimpleLogInterval no_drivetrain_status_ =
       ::aos::util::SimpleLogInterval(::aos::time::Time::InSeconds(0.2), WARNING,
diff --git a/y2016/joystick_reader.cc b/y2016/joystick_reader.cc
index 6a0edf0..bb966d7 100644
--- a/y2016/joystick_reader.cc
+++ b/y2016/joystick_reader.cc
@@ -152,8 +152,8 @@
 
     if (data.PosEdge(kTurn1) || data.PosEdge(kTurn2)) {
       if (drivetrain_queue.status.get()) {
-        left_goal = drivetrain_queue.status->estimated_left_position;
-        right_goal = drivetrain_queue.status->estimated_right_position;
+        left_goal_ = drivetrain_queue.status->estimated_left_position;
+        right_goal_ = drivetrain_queue.status->estimated_right_position;
       }
     }
     if (data.IsPressed(kTurn1) || data.IsPressed(kTurn2)) {
@@ -165,8 +165,8 @@
              .highgear(is_high_gear_)
              .quickturn(data.IsPressed(kQuickTurn))
              .control_loop_driving(is_control_loop_driving)
-             .left_goal(left_goal - wheel * 0.5 + throttle * 0.3)
-             .right_goal(right_goal + wheel * 0.5 + throttle * 0.3)
+             .left_goal(left_goal_ - wheel * 0.5 + throttle * 0.3)
+             .right_goal(right_goal_ + wheel * 0.5 + throttle * 0.3)
              .left_velocity_goal(0)
              .right_velocity_goal(0)
              .Send()) {
@@ -454,8 +454,8 @@
   double shooter_velocity_ = 0.0;
 
   // Turning goals
-  double left_goal;
-  double right_goal;
+  double left_goal_;
+  double right_goal_;
 
   bool was_running_ = false;
   bool auto_running_ = false;