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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 ILLUSIONS_CAMERA_H
#define ILLUSIONS_CAMERA_H
#include "illusions/graphics.h"
#include "common/rect.h"
#include "common/stack.h"
namespace Illusions {
class BackgroundInstance;
struct CameraState {
int _cameraMode;
//field_2 dw
bool _paused;
int16 _panSpeed;
int _someX, _someY;
Common::Point _currPan;
int _panXShl, _panYShl;
WRect _bounds;
uint32 _panNotifyId;
uint32 _time28;
uint32 _panStartTime;
uint32 _pauseStartTime;
uint32 _time2E;
Common::Point _currPan2;
Common::Point _panTargetPoint;
Common::Point _trackingLimits;
Common::Point _centerPt;
uint32 _panObjectId;
Common::Point *_panToPositionPtr;
uint _pointFlags;
//field_4A dw
};
struct CameraModeStackItem {
int _cameraMode;
uint32 _panObjectId;
int16 _panSpeed;
Common::Point _panTargetPoint;
uint32 _panNotifyId;
};
class Camera {
public:
Camera(IllusionsEngine *vm);
void clearStack();
void set(Common::Point &panPoint, WidthHeight &dimensions);
void panCenterObject(uint32 objectId, int16 panSpeed);
void panTrackObject(uint32 objectId);
void panToPoint(Common::Point pt, int16 panSpeed, uint32 panNotifyId);
void panEdgeFollow(uint32 objectId, int16 panSpeed);
void stopPan();
void pause();
void unpause();
void pushCameraMode();
void popCameraMode();
void clearCameraModeStack();
void update(uint32 currTime);
void setBounds(Common::Point minPt, Common::Point maxPt);
void setBoundsToDimensions(WidthHeight &dimensions);
Common::Point getCurrentPan();
Common::Point getScreenOffset();
Common::Point getTrackingLimits();
bool isAtPanLimit(int limitNum);
void setActiveState(CameraState &state);
void getActiveState(CameraState &state);
void refreshPan(BackgroundInstance *backgroundItem, WidthHeight &dimensions);
protected:
IllusionsEngine *_vm;
CameraState _activeState;
Common::FixedStack<CameraModeStackItem, 8> _stack;
int16 _screenWidth, _screenHeight;
int16 _screenMidX, _screenMidY;
Common::Point _centerObjectTrackingLimits;
Common::Point _trackObjectTrackingLimits;
int16 _trackObjectTrackingLimitsPanSpeed;
void updateMode1(uint32 currTime);
void updateMode2(uint32 currTime);
void updateMode3(uint32 currTime);
bool updatePan(uint32 currTime);
bool isPanFinished();
Common::Point getPtOffset(Common::Point pt);
void recalcPan(uint32 currTime);
bool calcPointFlags(Common::Point &pt, WRect &rect, uint &outFlags);
void clipPanTargetPoint();
void init();
void initDuckman();
void initBBDOU();
};
} // End of namespace Illusions
#endif // ILLUSIONS_CAMERA_H
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