Remove SampleRobot (#1658)

SampleRobot provides no benefits over RobotBase to advanced teams and
TimedRobot is recommended for everyone else.

A skeleton template for RobotBase was added.

wpilibcExamples/src/main/cpp/templates/robotbaseskeleton/cpp/Robot.cpp

@@ -0,0 +1,66 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2018-2019 FIRST. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#include "Robot.h"
+
+#include <hal/DriverStation.h>
+
+#include <frc/DriverStation.h>
+#include <frc/livewindow/LiveWindow.h>
+#include <frc/shuffleboard/Shuffleboard.h>
+#include <networktables/NetworkTable.h>
+
+void Robot::RobotInit() {}
+
+void Robot::Disabled() {}
+
+void Robot::Autonomous() {}
+
+void Robot::Teleop() {}
+
+void Robot::Test() {}
+
+void Robot::StartCompetition() {
+  auto& lw = *frc::LiveWindow::GetInstance();
+
+  RobotInit();
+
+  // Tell the DS that the robot is ready to be enabled
+  HAL_ObserveUserProgramStarting();
+
+  while (true) {
+    if (IsDisabled()) {
+      m_ds.InDisabled(true);
+      Disabled();
+      m_ds.InDisabled(false);
+      while (IsDisabled()) m_ds.WaitForData();
+    } else if (IsAutonomous()) {
+      m_ds.InAutonomous(true);
+      Autonomous();
+      m_ds.InAutonomous(false);
+      while (IsAutonomous() && IsEnabled()) m_ds.WaitForData();
+    } else if (IsTest()) {
+      lw.SetEnabled(true);
+      frc::Shuffleboard::EnableActuatorWidgets();
+      m_ds.InTest(true);
+      Test();
+      m_ds.InTest(false);
+      while (IsTest() && IsEnabled()) m_ds.WaitForData();
+      lw.SetEnabled(false);
+      frc::Shuffleboard::DisableActuatorWidgets();
+    } else {
+      m_ds.InOperatorControl(true);
+      Teleop();
+      m_ds.InOperatorControl(false);
+      while (IsOperatorControl() && IsEnabled()) m_ds.WaitForData();
+    }
+  }
+}
+
+#ifndef RUNNING_FRC_TESTS
+int main() { return frc::StartRobot<Robot>(); }
+#endif

wpilibcExamples/src/main/cpp/templates/robotbaseskeleton/include/Robot.h

@@ -0,0 +1,21 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2018-2019 FIRST. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#pragma once
+
+#include <frc/RobotBase.h>
+
+class Robot : public frc::RobotBase {
+ public:
+  void RobotInit();
+  void Disabled();
+  void Autonomous();
+  void Teleop();
+  void Test();
+
+  void StartCompetition() override;
+};