scene.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_SCENE_H
#define STARK_SCENE_H
 
#include "common/rect.h"
 
#include "math/matrix4.h"
#include "math/ray.h"
#include "math/vector3d.h"
 
namespace Stark {
 
namespace Gfx {
class Driver;
class RenderEntry;
}
 
class Scene {
public:
    Scene(Gfx::Driver *gfx);
    ~Scene();
 
    void initCamera(const Math::Vector3d &position, const Math::Vector3d &lookAt,
            float fov, Common::Rect viewSize, float nearClipPlane, float farClipPlane);
 
    void scrollCamera(const Common::Rect &viewport);
 
    Math::Matrix4 getProjectionMatrix() const { return _projectionMatrix; }
 
    Math::Matrix4 getViewMatrix() const { return _viewMatrix; }
 
    Math::Ray makeRayFromMouse(const Common::Point &mouse) const;
 
    Common::Point convertPosition3DToGameScreenOriginal(const Math::Vector3d &obj) const;
 
    void setFadeLevel(float fadeLevel);
    float getFadeLevel() const;
 
    void setSwayAngle(const Math::Angle &angle);
    Math::Angle getSwayAngle() const;
 
    Math::Vector3d getSwayDirection() const;
 
    void setFloatOffset(float floatOffset);
    float getFloatOffset() const;
 
    void setupShadows(bool enabled, float length);
    bool shouldRenderShadows() const { return _shouldRenderShadows; }
    float getMaxShadowLength() const { return _maxShadowLength; }
 
private:
    void computeClippingRect(float *xmin, float *xmax, float *ymin, float *ymax);
 
    Gfx::Driver *_gfx;
 
    Math::Vector3d _cameraPosition;
    Math::Vector3d _cameraLookDirection;
    float _fov;
    Common::Rect _viewSize;
    Common::Rect _viewport;
    float _nearClipPlane;
    float _farClipPlane;
 
    Math::Matrix4 _projectionMatrix;
    Math::Matrix4 _viewMatrix;
 
    float _fadeLevel;
    Math::Angle _swayAngle;
    float _floatOffset;
 
    bool _shouldRenderShadows;
    float _maxShadowLength;
};
 
} // End of namespace Stark
 
#endif // STARK_SCENE_H