Creates directory and file structure for y2020

Based of the 2019 robot and modified to be a boilerplate for a
new robot.

Change-Id: I7e2861a3cfa0b7ca608d5068f731b2796a97fffe
diff --git a/y2020/control_loops/superstructure/BUILD b/y2020/control_loops/superstructure/BUILD
new file mode 100644
index 0000000..533a369
--- /dev/null
+++ b/y2020/control_loops/superstructure/BUILD
@@ -0,0 +1,78 @@
+package(default_visibility = ["//visibility:public"])
+
+load("@com_github_google_flatbuffers//:build_defs.bzl", "flatbuffer_cc_library")
+
+flatbuffer_cc_library(
+    name = "superstructure_goal_fbs",
+    srcs = [
+        "superstructure_goal.fbs",
+    ],
+    gen_reflections = 1,
+    includes = [
+        "//frc971/control_loops:control_loops_fbs_includes",
+        "//frc971/control_loops:profiled_subsystem_fbs_includes",
+    ],
+)
+
+flatbuffer_cc_library(
+    name = "superstructure_output_fbs",
+    srcs = [
+        "superstructure_output.fbs",
+    ],
+    gen_reflections = 1,
+)
+
+flatbuffer_cc_library(
+    name = "superstructure_status_fbs",
+    srcs = [
+        "superstructure_status.fbs",
+    ],
+    gen_reflections = 1,
+    includes = [
+        "//frc971/control_loops:control_loops_fbs_includes",
+        "//frc971/control_loops:profiled_subsystem_fbs_includes",
+    ],
+)
+
+flatbuffer_cc_library(
+    name = "superstructure_position_fbs",
+    srcs = [
+        "superstructure_position.fbs",
+    ],
+    gen_reflections = 1,
+    includes = [
+        "//frc971/control_loops:control_loops_fbs_includes",
+        "//frc971/control_loops:profiled_subsystem_fbs_includes",
+    ],
+)
+
+cc_library(
+    name = "superstructure_lib",
+    srcs = [
+        "superstructure.cc",
+    ],
+    hdrs = [
+        "superstructure.h",
+    ],
+    deps = [
+        ":superstructure_goal_fbs",
+        ":superstructure_output_fbs",
+        ":superstructure_position_fbs",
+        ":superstructure_status_fbs",
+        "//aos/controls:control_loop",
+        "//aos/events:event_loop",
+        "//y2020:constants",
+    ],
+)
+
+cc_binary(
+    name = "superstructure",
+    srcs = [
+        "superstructure_main.cc",
+    ],
+    deps = [
+        ":superstructure_lib",
+        "//aos:init",
+        "//aos/events:shm_event_loop",
+    ],
+)
diff --git a/y2020/control_loops/superstructure/superstructure.cc b/y2020/control_loops/superstructure/superstructure.cc
new file mode 100644
index 0000000..a3978a4
--- /dev/null
+++ b/y2020/control_loops/superstructure/superstructure.cc
@@ -0,0 +1,43 @@
+#include "y2020/control_loops/superstructure/superstructure.h"
+
+#include "aos/events/event_loop.h"
+
+namespace y2020 {
+namespace control_loops {
+namespace superstructure {
+
+using frc971::control_loops::AbsoluteEncoderProfiledJointStatus;
+using frc971::control_loops::PotAndAbsoluteEncoderProfiledJointStatus;
+
+Superstructure::Superstructure(::aos::EventLoop *event_loop,
+                               const ::std::string &name)
+    : aos::controls::ControlLoop<Goal, Position, Status, Output>(event_loop,
+                                                                 name) {
+      event_loop->SetRuntimeRealtimePriority(30);
+}
+
+void Superstructure::RunIteration(const Goal * /*unsafe_goal*/,
+                                  const Position * /*position*/,
+                                  aos::Sender<Output>::Builder *output,
+                                  aos::Sender<Status>::Builder *status) {
+  if (WasReset()) {
+    AOS_LOG(ERROR, "WPILib reset, restarting\n");
+  }
+
+
+  if (output != nullptr) {
+    OutputT output_struct;
+    output->Send(Output::Pack(*output->fbb(), &output_struct));
+  }
+
+  Status::Builder status_builder = status->MakeBuilder<Status>();
+
+  status_builder.add_zeroed(true);
+  status_builder.add_estopped(false);
+
+  status->Send(status_builder.Finish());
+}
+
+}  // namespace control_loops
+}  // namespace y2020
+}  // namespace y2020
diff --git a/y2020/control_loops/superstructure/superstructure.h b/y2020/control_loops/superstructure/superstructure.h
new file mode 100644
index 0000000..9aaca8e
--- /dev/null
+++ b/y2020/control_loops/superstructure/superstructure.h
@@ -0,0 +1,35 @@
+#ifndef y2020_CONTROL_LOOPS_SUPERSTRUCTURE_SUPERSTRUCTURE_H_
+#define y2020_CONTROL_LOOPS_SUPERSTRUCTURE_SUPERSTRUCTURE_H_
+
+#include "aos/controls/control_loop.h"
+#include "aos/events/event_loop.h"
+#include "y2020/constants.h"
+#include "y2020/control_loops/superstructure/superstructure_goal_generated.h"
+#include "y2020/control_loops/superstructure/superstructure_output_generated.h"
+#include "y2020/control_loops/superstructure/superstructure_position_generated.h"
+#include "y2020/control_loops/superstructure/superstructure_status_generated.h"
+
+namespace y2020 {
+namespace control_loops {
+namespace superstructure {
+
+class Superstructure
+    : public ::aos::controls::ControlLoop<Goal, Position, Status, Output> {
+ public:
+  explicit Superstructure(::aos::EventLoop *event_loop,
+                          const ::std::string &name = "/superstructure");
+
+ protected:
+  virtual void RunIteration(const Goal *unsafe_goal, const Position *position,
+                            aos::Sender<Output>::Builder *output,
+                            aos::Sender<Status>::Builder *status) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(Superstructure);
+};
+
+}  // namespace superstructure
+}  // namespace control_loops
+}  // namespace y2020
+
+#endif  // y2020_CONTROL_LOOPS_SUPERSTRUCTURE_SUPERSTRUCTURE_H_
diff --git a/y2020/control_loops/superstructure/superstructure_goal.fbs b/y2020/control_loops/superstructure/superstructure_goal.fbs
new file mode 100644
index 0000000..8a38b95
--- /dev/null
+++ b/y2020/control_loops/superstructure/superstructure_goal.fbs
@@ -0,0 +1,9 @@
+include "frc971/control_loops/profiled_subsystem.fbs";
+
+namespace y2020.control_loops.superstructure;
+
+table Goal {
+
+}
+
+root_type Goal;
diff --git a/y2020/control_loops/superstructure/superstructure_main.cc b/y2020/control_loops/superstructure/superstructure_main.cc
new file mode 100644
index 0000000..101a0c7
--- /dev/null
+++ b/y2020/control_loops/superstructure/superstructure_main.cc
@@ -0,0 +1,20 @@
+#include "y2020/control_loops/superstructure/superstructure.h"
+
+#include "aos/events/shm_event_loop.h"
+#include "aos/init.h"
+
+int main(int /*argc*/, char * /*argv*/ []) {
+  ::aos::InitNRT(true);
+
+  aos::FlatbufferDetachedBuffer<aos::Configuration> config =
+      aos::configuration::ReadConfig("config.json");
+
+  ::aos::ShmEventLoop event_loop(&config.message());
+  ::y2020::control_loops::superstructure::Superstructure superstructure(
+      &event_loop);
+
+  event_loop.Run();
+
+  ::aos::Cleanup();
+  return 0;
+}
diff --git a/y2020/control_loops/superstructure/superstructure_output.fbs b/y2020/control_loops/superstructure/superstructure_output.fbs
new file mode 100644
index 0000000..3682db6
--- /dev/null
+++ b/y2020/control_loops/superstructure/superstructure_output.fbs
@@ -0,0 +1,7 @@
+namespace y2020.control_loops.superstructure;
+
+table Output {
+
+}
+
+root_type Output;
diff --git a/y2020/control_loops/superstructure/superstructure_position.fbs b/y2020/control_loops/superstructure/superstructure_position.fbs
new file mode 100644
index 0000000..c4b0a9a
--- /dev/null
+++ b/y2020/control_loops/superstructure/superstructure_position.fbs
@@ -0,0 +1,9 @@
+include "frc971/control_loops/control_loops.fbs";
+
+namespace y2020.control_loops.superstructure;
+
+table Position {
+
+}
+
+root_type Position;
diff --git a/y2020/control_loops/superstructure/superstructure_status.fbs b/y2020/control_loops/superstructure/superstructure_status.fbs
new file mode 100644
index 0000000..d0e9266
--- /dev/null
+++ b/y2020/control_loops/superstructure/superstructure_status.fbs
@@ -0,0 +1,15 @@
+include "frc971/control_loops/control_loops.fbs";
+include "frc971/control_loops/profiled_subsystem.fbs";
+
+namespace y2020.control_loops.superstructure;
+
+table Status {
+  // All subsystems know their location.
+  zeroed:bool;
+
+  // If true, we have aborted. This is the or of all subsystem estops.
+  estopped:bool;
+
+}
+
+root_type Status;