mirror of
https://github.com/ptitSeb/Serious-Engine
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107 lines
3.9 KiB
C++
107 lines
3.9 KiB
C++
/* Copyright (c) 2002-2012 Croteam Ltd. All rights reserved. */
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#ifndef VIEWERS_H
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#define VIEWERS_H
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/*
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* Definition of viewer and target placement
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*/
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class CMasterViewer {
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friend class CSlaveViewer;
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public:
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CPlacement3D mv_plViewer; // placement of the viewer
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FLOAT mv_fTargetDistance; // distance of virtual target from viewer
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// default constructor
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CMasterViewer(void);
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// get placement of the viewer
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inline CPlacement3D GetViewerPlacement(void) const {return mv_plViewer;};
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// get placement of the virtual target
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CPlacement3D GetTargetPlacement(void) const;
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// set placement of the virtual target
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void SetTargetPlacement(FLOAT3D f3dTarget);
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// convert from slave
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void operator = (const CSlaveViewer &svSlave);
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};
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/*
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* Definition of viewing projection viewer placement
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*/
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class CSlaveViewer {
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friend class CMasterViewer;
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public:
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enum ProjectionType {
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PT_ILLEGAL = 0,
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PT_PERSPECTIVE,
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PT_ISOMETRIC_FRONT,
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PT_ISOMETRIC_RIGHT,
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PT_ISOMETRIC_TOP,
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PT_ISOMETRIC_BACK,
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PT_ISOMETRIC_LEFT,
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PT_ISOMETRIC_BOTTOM,
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};
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CDrawPort *sv_pdpDrawPort; // drawport that this viewer was created for
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CPlacement3D sv_plViewer; // placement of the viewer
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CPlacement3D sv_plGrid; // grid's placement
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FLOAT sv_fTargetDistance; // distance of virtual target from viewer
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enum ProjectionType sv_ProjectionType; // tyoe of projection
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// get orientation angles for type of isometric viewer
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ANGLE3D GetAngleForIsometricType(void) const;
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public:
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// default constructor
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CSlaveViewer( const CMasterViewer &mvMaster, enum ProjectionType ptProjectionType,
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const CPlacement3D &plGrid, CDrawPort *pdpDrawPort);
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// create a projection for this viewer
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void MakeProjection(CAnyProjection3D &prProjection);
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// create a perspective projection for this viewer
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void MakePerspectiveProjection(CPerspectiveProjection3D &prPerspectiveProjection);
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// get placement of the viewer
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inline CPlacement3D GetViewerPlacement(void) const {return sv_plViewer;};
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// test if this is perspective viewer
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inline BOOL IsPerspective(void) const { ASSERT( sv_ProjectionType != PT_ILLEGAL);
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return sv_ProjectionType == PT_PERSPECTIVE; };
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// test if this is isometric viewer
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inline BOOL IsIsometric(void) const { ASSERT( sv_ProjectionType != PT_ILLEGAL);
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return sv_ProjectionType != PT_PERSPECTIVE; };
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/* Get zoom factor for the viewer. */
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FLOAT GetZoomFactor(void);
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/* Get distance for requested zoom factor for the viewer. */
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FLOAT GetDistanceForZoom(FLOAT fZoom);
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// get target distance
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inline FLOAT GetTargetDistance( void) const { return sv_fTargetDistance; };
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// get placement of the virtual target
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CPlacement3D GetTargetPlacement(void) const;
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// translate slave viewer in his own system
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void Translate_OwnSystem( PIX pixDI, PIX pixDJ, PIX pixDK);
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void TranslatePlacement_OtherSystem(CPlacement3D &plToTranslate,CPlacement3D &plOtherSystem,
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PIX pixDI, PIX pixDJ, PIX pixDK);
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// scales target distance using given factor
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void ScaleTargetDistance( FLOAT fFactor);
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// rotate slave viewer in his own system using HPB method
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void Rotate_HPB( PIX pixDI, PIX pixDJ, PIX pixDK);
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// translate a placement in viewer's system
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void TranslatePlacement_OwnSystem(CPlacement3D &plToTranslate,
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PIX pixDI, PIX pixDJ, PIX pixDK);
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// rotate a placement in viewer's system
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void RotatePlacement_HPB(CPlacement3D &plToRotate,
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PIX pixDI, PIX pixDJ, PIX pixDK);
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// rotate a placement in viewer's system
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void RotatePlacement_TrackBall(CPlacement3D &plToRotate,
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PIX pixDI, PIX pixDJ, PIX pixDK);
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// convert offset from pixels to meters
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FLOAT PixelsToMeters(PIX pix);
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void Translate_Local_OwnSystem(FLOAT fdX, FLOAT fdY, FLOAT fdZ);
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void Rotate_Local_HPB( FLOAT fdX, FLOAT fdY, FLOAT fdZ);
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};
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#endif // VIEWERS_H
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