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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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef ZVISION_LEVER_CONTROL_H
#define ZVISION_LEVER_CONTROL_H
#include "common/types.h"
#include "common/list.h"
#include "common/rect.h"
#include "zvision/control.h"
namespace ZVision {
class ZorkAVIDecoder;
class RlfAnimation;
class LeverControl : public Control {
public:
LeverControl(ZVision *engine, uint32 key, Common::SeekableReadStream &stream);
~LeverControl();
private:
enum FileType {
RLF = 1,
AVI = 2
};
struct Direction {
Direction(uint angle, uint toFrame) : angle(angle), toFrame(toFrame) {}
uint angle;
uint toFrame;
};
struct FrameInfo {
Common::Rect hotspot;
Common::List<Direction> directions;
Common::List<uint> returnRoute;
};
enum {
ANGLE_DELTA = 30 // How far off a mouse angle can be and still be considered valid. This is in both directions, so the total buffer zone is (2 * ANGLE_DELTA)
};
private:
union {
RlfAnimation *rlf;
ZorkAVIDecoder *avi;
} _animation;
FileType _fileType;
Common::String _cursorName;
Common::Rect _animationCoords;
bool _mirrored;
uint _frameCount;
uint _startFrame;
Common::Point _hotspotDelta;
FrameInfo *_frameInfo;
uint _currentFrame;
uint _lastRenderedFrame;
bool _mouseIsCaptured;
bool _isReturning;
Common::Point _lastMousePos;
Common::List<uint>::iterator _returnRoutesCurrentProgress;
public:
void onMouseDown(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos);
void onMouseUp(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos);
bool onMouseMove(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos);
bool process(uint32 deltaTimeInMillis);
private:
void parseLevFile(const Common::String &fileName);
/**
* Calculates the angle a vector makes with the negative y-axis
*
* 90
* pointTwo * ^
* \ |
* \ |
* \ |
* \ |
* angle ( \|pointOne
* 180 <-----------*-----------> 0
* |
* |
* |
* |
* |
* ^
* 270
*
* @param pointOne The origin of the vector
* @param pointTwo The end of the vector
* @return The angle the vector makes with the negative y-axis
*/
static int calculateVectorAngle(const Common::Point &pointOne, const Common::Point &pointTwo);
void renderFrame(uint frameNumber);
};
} // End of namespace ZVision
#endif
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