ShiftController state machine boilerplate

Firmware/Shifter_System/.settings/stm32cubeide.project.prefs

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Firmware/Shifter_System/Program/Src/Application/ShiftController/shift_controller.cpp

@@ -0,0 +1,86 @@
+
+#include "shift_controller.hpp"
+
+namespace application {
+
+ShiftController::ShiftController() { }
+
+ShiftController::~ShiftController() { }
+
+void ShiftController::SetState(State* new_state) {
+	if (new_state != nullptr) {
+		current_state_->Exit(*this);
+		current_state_ = new_state;
+		current_state_->Enter(*this);
+	}
+}
+
+void ShiftController::Run() {
+	current_state_->Compute(*this);
+}
+
+
+//*************************************************
+//					LowGear State
+//*************************************************
+void ShiftController::LowGear::Enter(ShiftController& context) {
+	printf("[ShiftController] Entering LowGear state.\n");
+}
+
+void ShiftController::LowGear::Compute(ShiftController& context) {
+
+}
+
+void ShiftController::LowGear::Exit(ShiftController& context) {
+	printf("[ShiftController] Leaving LowGear state.\n");
+}
+
+
+//*************************************************
+//					Neutral State
+//*************************************************
+void ShiftController::Neutral::Enter(ShiftController& context) {
+	printf("[ShiftController] Entering Neutral state.\n");
+}
+
+void ShiftController::Neutral::Compute(ShiftController& context) {
+
+}
+
+void ShiftController::Neutral::Exit(ShiftController& context) {
+	printf("[ShiftController] Leaving Neutral state.\n");
+}
+
+
+//*************************************************
+//					MidGear State
+//*************************************************
+void ShiftController::MidGear::Enter(ShiftController& context) {
+	printf("[ShiftController] Entering MidGear state.\n");
+}
+
+void ShiftController::MidGear::Compute(ShiftController& context) {
+
+}
+
+void ShiftController::MidGear::Exit(ShiftController& context) {
+	printf("[ShiftController] Leaving MidGear state.\n");
+}
+
+
+//*************************************************
+//					HighGear State
+//*************************************************
+void ShiftController::HighGear::Enter(ShiftController& context) {
+	printf("[ShiftController] Entering HighGear state.\n");
+}
+
+void ShiftController::HighGear::Compute(ShiftController& context) {
+
+}
+
+void ShiftController::HighGear::Exit(ShiftController& context) {
+	printf("[ShiftController] Leaving HighGear state.\n");
+}
+
+} // namespace application

Firmware/Shifter_System/Program/Src/Application/ShiftController/shift_controller.hpp

@@ -0,0 +1,81 @@
+
+#ifndef SHIFT_CONTROLLER_H
+#define SHIFT_CONTROLLER_H
+
+// Standard Libraries
+#include <cstdio>
+
+namespace application {
+
+class ShiftController {
+public:
+
+	ShiftController();
+
+	~ShiftController();
+
+	void Run();
+
+
+protected:
+	class State {
+	public:
+		virtual ~State() = default;
+
+		virtual void Enter(ShiftController& context) = 0;
+		virtual void Compute(ShiftController& context) = 0;
+		virtual void Exit(ShiftController& context) = 0;
+
+	protected:
+		State() = default;
+	};
+
+	class LowGear : public State {
+	public:
+		LowGear() = default;
+		virtual void Enter(ShiftController& context) override;
+		virtual void Compute(ShiftController& context) override;
+		virtual void Exit(ShiftController& context) override;
+	};
+
+	class Neutral : public State {
+	public:
+		Neutral() = default;
+
+		virtual void Enter(ShiftController& context) override;
+		virtual void Compute(ShiftController& context) override;
+		virtual void Exit(ShiftController& context) override;
+	};
+
+	class MidGear : public State {
+	public:
+		MidGear() = default;
+
+		virtual void Enter(ShiftController& context) override;
+		virtual void Compute(ShiftController& context) override;
+		virtual void Exit(ShiftController& context) override;
+	};
+
+	class HighGear : public State {
+	public:
+		HighGear() = default;
+
+		virtual void Enter(ShiftController& context) override;
+		virtual void Compute(ShiftController& context) override;
+		virtual void Exit(ShiftController& context) override;
+	};
+
+private:
+	void SetState(State* new_state);
+
+
+	LowGear low_gear_state_;
+	Neutral neutral_state_;
+	MidGear mid_gear_state_;
+	HighGear high_gear_state_;
+	State* current_state_{&neutral_state_};
+};
+
+} // namespace application
+
+#endif // SHIFT_CONTROLLER_H