1 files changed, 68 insertions, 0 deletions
diff --git a/main/puzzle/fsm/FSM.hpp b/main/puzzle/fsm/FSM.hpp
new file mode 100644
index 0000000..c86ed80
--- /dev/null
+++ b/main/puzzle/fsm/FSM.hpp
@@ -0,0 +1,68 @@
+#ifndef _FSM_HPP_
+#define _FSM_HPP_
+
+#include "FSM.h"
+
+#include <iostream>
+
+/// <summary>
+/// This is a generic update method, unknown classes are not supported.
+/// </summary>
+/// <typeparam name="TState">IBehaviouralState is the only accepted
+/// class.</typeparam>
+template <class TState> void FSM<TState>::act() {
+  // No implementation for unknown class.
+  std::cout << "No implementation for unknown class" << std::endl;
+}
+//
+///// <summary>
+///// Calls the IBehaviouralState act method.
+///// </summary>
+///// <typeparam name="TState">IBehaviouralState is the only accepted
+/// class.</typeparam>
+template <> inline void FSM<IBehaviouralState>::act() { _currentState->act(); }
+
+/// <summary>
+/// This is a generic return of the type.
+/// </summary>
+/// <typeparam name="TState">Any class type works with this return.</typeparam>
+/// <returns>The current IBehaviouralState map.</returns>
+template <class TState>
+std::map<int, std::shared_ptr<TState>> FSM<TState>::get_states() {
+  return _states;
+}
+
+///// <summary>
+///// State transitioning from current state to newState.
+///// Calls Exit on the current state and Enter on the new state.
+///// </summary>
+///// <typeparam name="TState">IBehaviouralState is the only accepted
+/// class.</typeparam>
+///// <param name="newState">New state to transition into.</param>
+template <>
+inline void
+FSM<IBehaviouralState>::set_state(std::shared_ptr<IBehaviouralState> newState) {
+  // We can guarantee all statemachines are based on IBehaviouralState
+  if (_currentState != nullptr)
+    _currentState->exit();
+
+  _currentState = nullptr;
+  _currentState = newState;
+  _currentState->enter();
+}
+
+/// <summary>
+/// State transitioning from current state to newState.
+/// Calls Exit on the current state and Enter on the new state.
+/// </summary>
+/// <typeparam name="TState">IBehaviouralState is the only accepted
+/// class.</typeparam> <param name="newState">New state to transition
+/// into.</param>
+template <class TState>
+void FSM<TState>::set_state(std::shared_ptr<TState> newState) {
+  // We can guarantee all statemachines are based on IBehaviouralState
+  // No implementation for an unknown state change class.
+  std::cout << "No implementation for unknown state change class" << std::endl;
+}
+
+#endif // _FSM_HPP_
+\ No newline at end of file