DOOM-3-BFG

DOOM 3 BFG Edition
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Force_Grab.h (2762B)

      1 /*
      2 ===========================================================================
      3 
      4 Doom 3 BFG Edition GPL Source Code
      5 Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company. 
      6 
      7 This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").  
      8 
      9 Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
     10 it under the terms of the GNU General Public License as published by
     11 the Free Software Foundation, either version 3 of the License, or
     12 (at your option) any later version.
     13 
     14 Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful,
     15 but WITHOUT ANY WARRANTY; without even the implied warranty of
     16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     17 GNU General Public License for more details.
     18 
     19 You should have received a copy of the GNU General Public License
     20 along with Doom 3 BFG Edition Source Code.  If not, see <http://www.gnu.org/licenses/>.
     21 
     22 In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code.  If not, please request a copy in writing from id Software at the address below.
     23 
     24 If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
     25 
     26 ===========================================================================
     27 */
     28 
     29 #ifndef __FORCE_GRAB_H__
     30 #define __FORCE_GRAB_H__
     31 
     32 
     33 /*
     34 ===============================================================================
     35 
     36 	Drag force
     37 
     38 ===============================================================================
     39 */
     40 
     41 class idForce_Grab : public idForce {
     42 
     43 public:
     44 	CLASS_PROTOTYPE( idForce_Grab );
     45 
     46 	void				Save( idSaveGame *savefile ) const;
     47 	void				Restore( idRestoreGame *savefile );
     48 
     49 						idForce_Grab();
     50 	virtual				~idForce_Grab();
     51 						// initialize the drag force
     52 	void				Init( float damping );
     53 						// set physics object being dragged
     54 	void				SetPhysics( idPhysics *physics, int id, const idVec3 &goal );
     55 						// update the goal position
     56 	void				SetGoalPosition( const idVec3 &goal );
     57 
     58 
     59 public: // common force interface
     60 	virtual void		Evaluate( int time );
     61 	virtual void		RemovePhysics( const idPhysics *phys );
     62 
     63 	// Get the distance from object to goal position
     64 	float				GetDistanceToGoal();
     65 
     66 private:
     67 
     68 	// properties
     69 	float				damping;
     70 	idVec3				goalPosition;
     71 
     72 	float				distanceToGoal;
     73 
     74 	// positioning
     75 	idPhysics *			physics;		// physics object
     76 	int					id;				// clip model id of physics object
     77 };
     78 
     79 #endif /* !__FORCE_GRAB_H__ */