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engines/titanic/star_control/flight_manager_base.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef TITANIC_FLIGHT_MANAGER_BASE_H
+#define TITANIC_FLIGHT_MANAGER_BASE_H
+
+#include "titanic/star_control/fvector.h"
+#include "titanic/star_control/orientation_changer.h"
+#include "common/array.h"
+
+namespace Titanic {
+
+#define GAMMA_TABLE_SIZE 32
+
+class CErrorCode;
+class FMatrix;
+enum MoverState { NOT_ACTIVE = 0, MOVING = 1, DONE_MOVING = 2 };
+
+/**
+ * Base class for flight manager handling automated movement
+ */
+class CFlightManagerBase {
+protected:
+	bool _active;
+	FVector _srcPos, _destPos;
+	double _distance;
+	FVector _direction;
+	bool _flight;
+	double _step;
+	double _step1;
+	int _accCount;
+	int _traCount;
+	int _decCount;
+	int _totCount;
+	double _gammaTable[GAMMA_TABLE_SIZE];
+	double _currentSpin;
+	double _spinStep;
+	COrientationChanger _orientationChanger;
+public:
+	CFlightManagerBase();
+	virtual ~CFlightManagerBase() {}
+
+	/**
+	 * Clear src and dest orientation and set some default values for other fields
+	 */
+	void clear();
+
+	/**
+	 * Setup a transition to from one position to another
+	 */
+	void setPath(const FVector &from, const FVector &to);
+
+	/**
+	 * Applys speeds to the mover. More than one application is usually done for several transitions
+	 */
+	virtual MoverState move(CErrorCode &errorCode, FVector &pos, FMatrix &orientation) { return DONE_MOVING; }
+
+	/**
+	 * Given a distance to cover, builds an acceleration table for the journey
+	 */
+	virtual void buildMotionTable(int sustain, int decay, float distance);
+
+	bool isActive() const { return _active; }
+};
+
+} // End of namespace Titanic
+
+#endif /* TITANIC_FLIGHT_MANAGER_BASE_H */