Move 2015-specific code to its own folder.

Known issues:
  -I didn't change the namespace for it, but I am open to discussion
   on doing that in a separate change.
  -There are a couple of files which should get split out into
   year-specific and not-year-specific files to reduce how much needs
   to get copied around each year still.
  -The control loop python code doesn't yet generate code with the
   right #include etc paths.

Change-Id: Iabf078e75107c283247f58a5ffceb4dbd6a0815f
diff --git a/frc971/constants.h b/frc971/constants.h
index 0b6b725..890c63c 100644
--- a/frc971/constants.h
+++ b/frc971/constants.h
@@ -1,158 +1,21 @@
 #ifndef FRC971_CONSTANTS_H_
 #define FRC971_CONSTANTS_H_
-#include <stdint.h>
-
-#include "frc971/control_loops/state_feedback_loop.h"
-#include "frc971/shifter_hall_effect.h"
 
 namespace frc971 {
 namespace constants {
 
-// Has all of the numbers that change for both robots and makes it easy to
-// retrieve the values for the current one.
-
-// Everything is in SI units (volts, radians, meters, seconds, etc).
-// Some of these values are related to the conversion between raw values
-// (encoder counts, voltage, etc) to scaled units (radians, meters, etc).
-
-// This structure contains current values for all of the things that change.
-struct Values {
-  // Drivetrain Values /////
-
-  // The ratio from the encoder shaft to the drivetrain wheels.
-  double drivetrain_encoder_ratio;
-  // The ratio from the encoder shaft to the arm joint.
-  double arm_encoder_ratio;
-  // The ratio from the pot shaft to the arm joint.
-  double arm_pot_ratio;
-  // The ratio from the encoder shaft to the elevator output pulley.
-  double elev_encoder_ratio;
-  // The ratio from the pot shaft to the elevator output pulley.
-  double elev_pot_ratio;
-  // How far the elevator moves (meters) per radian on the output pulley.
-  double elev_distance_per_radian;
-  // The ratio from the encoder shaft to the claw joint.
-  double claw_encoder_ratio;
-  // The ratio from the pot shaft to the claw joint.
-  double claw_pot_ratio;
-
-  // How tall a tote is in meters.
-  double tote_height;
-
-  // The gear ratios from motor shafts to the drivetrain wheels for high and low
-  // gear.
-  double low_gear_ratio;
-  double high_gear_ratio;
-  ShifterHallEffect left_drive, right_drive;
-  bool clutch_transmission;
-
-  double turn_width;
-
-  ::std::function<StateFeedbackLoop<2, 2, 2>()> make_v_drivetrain_loop;
-  ::std::function<StateFeedbackLoop<4, 2, 2>()> make_drivetrain_loop;
-
-  double drivetrain_done_distance;
-  double drivetrain_max_speed;
-
-  // Superstructure Values /////
-
-  struct ZeroingConstants {
-    // The number of samples in the moving average filter.
-    int average_filter_size;
-    // The difference in scaled units between two index pulses.
-    double index_difference;
-    // The absolute position in scaled units of one of the index pulses.
-    double measured_index_position;
-    // Value between 0 and 1 which determines a fraction of the index_diff
-    // you want to use.
-    double allowable_encoder_error;
-  };
-
-  // Defines a range of motion for a subsystem.
-  // These are all absolute positions in scaled units.
-  struct Range {
-    double lower_hard_limit;
-    double upper_hard_limit;
-    double lower_limit;
-    double upper_limit;
-  };
-
-  struct Claw {
-    Range wrist;
-    ZeroingConstants zeroing;
-    // The value to add to potentiometer readings after they have been converted
-    // to radians so that the resulting value is 0 when the claw is at absolute
-    // 0 (horizontal straight out the front).
-    double potentiometer_offset;
-
-    // Time between sending commands to claw opening pistons and them reaching
-    // the new state.
-    double piston_switch_time;
-    // How far on either side we look for the index pulse before we give up.
-    double zeroing_range;
-  };
-  Claw claw;
-
-  struct Fridge {
-    Range elevator;
-    Range arm;
-
-    ZeroingConstants left_elev_zeroing;
-    ZeroingConstants right_elev_zeroing;
-    ZeroingConstants left_arm_zeroing;
-    ZeroingConstants right_arm_zeroing;
-
-    // Values to add to scaled potentiometer readings so 0 lines up with the
-    // physical absolute 0.
-    double left_elevator_potentiometer_offset;
-    double right_elevator_potentiometer_offset;
-    double left_arm_potentiometer_offset;
-    double right_arm_potentiometer_offset;
-
-    // How high the elevator has to be before we start zeroing the arm.
-    double arm_zeroing_height;
-
-    // The length of the arm, from the axis of the bottom pivot to the axis of
-    // the top pivot.
-    double arm_length;
-  };
-  Fridge fridge;
-
-  double max_allowed_left_right_arm_difference;
-  double max_allowed_left_right_elevator_difference;
-
-  struct ClawGeometry {
-    // Horizontal distance from the center of the grabber to the end.
-    double grabber_half_length;
-    // Vertical distance from the arm rotation center to the bottom of the
-    // grabber.  Distance measured with arm vertical (theta = 0).
-    double grabber_delta_y;
-    // Vertical separation of the claw and arm rotation centers with the
-    // elevator at 0.0 and the arm angle set to zero.
-    double grabber_arm_vert_separation;
-    // Horizontal separation of the claw and arm rotation centers with the
-    // elevator at 0.0 and the arm angle set to zero.
-    double grabber_arm_horz_separation;
-    // Distance between the center of the claw to the top of the claw.
-    // The line drawn at this distance parallel to the claw centerline is used
-    // to determine if claw interfears with the grabber.
-    double claw_top_thickness;
-    // The grabber is safe at any height if it is behind this location.
-    double grabber_always_safe_h_min;
-    // The grabber is safe at any x if it is above this location.
-    double grabber_always_safe_x_max;
-  };
-  ClawGeometry clawGeometry;
+struct ZeroingConstants {
+  // The number of samples in the moving average filter.
+  int average_filter_size;
+  // The difference in scaled units between two index pulses.
+  double index_difference;
+  // The absolute position in scaled units of one of the index pulses.
+  double measured_index_position;
+  // Value between 0 and 1 which determines a fraction of the index_diff
+  // you want to use.
+  double allowable_encoder_error;
 };
 
-// Creates (once) a Values instance for ::aos::network::GetTeamNumber() and
-// returns a reference to it.
-const Values &GetValues();
-
-// Creates Values instances for each team number it is called with and returns
-// them.
-const Values &GetValuesForTeam(uint16_t team_number);
-
 }  // namespace constants
 }  // namespace frc971