Copy back a lot of the 2014 code.
Change-Id: I552292d8bd7bce4409e02d254bef06a9cc009568
diff --git a/y2014/control_loops/drivetrain/drivetrain.h b/y2014/control_loops/drivetrain/drivetrain.h
new file mode 100644
index 0000000..87e6362
--- /dev/null
+++ b/y2014/control_loops/drivetrain/drivetrain.h
@@ -0,0 +1,43 @@
+#ifndef Y2014_CONTROL_LOOPS_DRIVETRAIN_H_
+#define Y2014_CONTROL_LOOPS_DRIVETRAIN_H_
+
+#include "Eigen/Dense"
+
+#include "aos/common/controls/polytope.h"
+#include "aos/common/controls/control_loop.h"
+#include "aos/common/controls/polytope.h"
+#include "y2014/control_loops/drivetrain/drivetrain.q.h"
+#include "aos/common/util/log_interval.h"
+
+namespace frc971 {
+namespace control_loops {
+
+class DrivetrainLoop
+ : public aos::controls::ControlLoop<control_loops::DrivetrainQueue> {
+ public:
+ // Constructs a control loop which can take a Drivetrain or defaults to the
+ // drivetrain at frc971::control_loops::drivetrain
+ explicit DrivetrainLoop(control_loops::DrivetrainQueue *my_drivetrain =
+ &control_loops::drivetrain_queue)
+ : aos::controls::ControlLoop<control_loops::DrivetrainQueue>(
+ my_drivetrain) {
+ ::aos::controls::HPolytope<0>::Init();
+ }
+
+ protected:
+ // Executes one cycle of the control loop.
+ virtual void RunIteration(
+ const control_loops::DrivetrainQueue::Goal *goal,
+ const control_loops::DrivetrainQueue::Position *position,
+ control_loops::DrivetrainQueue::Output *output,
+ control_loops::DrivetrainQueue::Status *status);
+
+ typedef ::aos::util::SimpleLogInterval SimpleLogInterval;
+ SimpleLogInterval no_position_ = SimpleLogInterval(
+ ::aos::time::Time::InSeconds(0.25), WARNING, "no position");
+};
+
+} // namespace control_loops
+} // namespace frc971
+
+#endif // Y2014_CONTROL_LOOPS_DRIVETRAIN_H_