movement.h

/* 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 STARK_MOVEMENT_MOVEMENT_H
#define STARK_MOVEMENT_MOVEMENT_H

#include "math/vector3d.h"

namespace Stark {

namespace Resources {
class ItemVisual;
}

class ResourceSerializer;

class Movement {
public:
    Movement(Resources::ItemVisual *item);
    virtual ~Movement();

    enum MovementType {
        kTypeWalk            = 1,
        kTypeFollowPath      = 2,
        kTypeFollowPathLight = 3,
        kTypeTurn            = 4
    };

    static Movement *construct(uint32 type, Resources::ItemVisual *item);

    virtual uint32 getType() const = 0;

    virtual void start();

    virtual void stop(bool force = false);

    virtual void onGameLoop() = 0;

    bool hasEnded() const;

    virtual bool hasReachedDestination() const;

    virtual void saveLoad(ResourceSerializer *serializer) = 0;

protected:
    enum TurnDirection {
        kTurnNone,
        kTurnLeft,
        kTurnRight
    };

    const float _defaultTurnAngleSpeed; // Degrees per ms

    float computeAngleBetweenVectorsXYPlane(const Math::Vector3d &v1, const Math::Vector3d &v2) const;

    bool _ended;
    Resources::ItemVisual *_item;
};

} // End of namespace Stark

#endif // STARK_MOVEMENT_MOVEMENT_H