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DependentExtensions/Ogre3DInterpDemo/FSM.h

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+/*
+ *  Copyright (c) 2014, Oculus VR, Inc.
+ *  All rights reserved.
+ *
+ *  This source code is licensed under the BSD-style license found in the
+ *  RakNet License.txt file in the licenses directory of this source tree. An additional grant 
+ *  of patent rights can be found in the RakNet Patents.txt file in the same directory.
+ *
+ *  Modified work: Copyright (c) 2017, SLikeSoft UG (haftungsbeschränkt)
+ *
+ *  This source code was modified by SLikeSoft. Modifications are licensed under the MIT-style
+ *  license found in the license.txt file in the root directory of this source tree.
+ */
+
+#ifndef __FINITE_STATE_MACHINE_H
+#define __FINITE_STATE_MACHINE_H
+
+#include "slikenet/DS_List.h"
+
+class State;
+
+// Finite state machine
+// Stores a stack of states
+// The top of the stack is the current state.  There is only one current state.  The stack contains the state history.
+// OnEnter, OnLeave, FSMAddRef, FSMRemoveRef of class State is called as appropriate.
+class FSM
+{
+public:
+	FSM();
+	~FSM();
+	void Clear(void);
+	State *CurrentState(void) const;
+	State *GetState(const int index) const;
+	int GetStateIndex(State *state) const;
+	int GetStateHistorySize(void) const;
+	void RemoveState(const int index);
+	void AddState(State *state);
+	void ReplaceState(const int index, State *state);
+	void SetPriorState(const int index);
+
+protected:
+	DataStructures::List<State*> stateHistory;
+};
+
+
+#endif