2 ===========================================================================
5 Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
7 This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).
9 Doom 3 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.
14 Doom 3 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.
19 You should have received a copy of the GNU General Public License
20 along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
22 In addition, the Doom 3 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 Source Code. If not, please request a copy in writing from id Software at the address below.
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.
26 ===========================================================================
29 #ifndef __FORCE_GRAB_H__
30 #define __FORCE_GRAB_H__
35 ===============================================================================
39 ===============================================================================
42 class idForce_Grab : public idForce {
45 CLASS_PROTOTYPE( idForce_Grab );
47 void Save( idSaveGame *savefile ) const;
48 void Restore( idRestoreGame *savefile );
51 virtual ~idForce_Grab( void );
52 // initialize the drag force
53 void Init( float damping );
54 // set physics object being dragged
55 void SetPhysics( idPhysics *physics, int id, const idVec3 &goal );
56 // update the goal position
57 void SetGoalPosition( const idVec3 &goal );
60 public: // common force interface
61 virtual void Evaluate( int time );
62 virtual void RemovePhysics( const idPhysics *phys );
64 // Get the distance from object to goal position
65 float GetDistanceToGoal( void );
76 idPhysics * physics; // physics object
77 int id; // clip model id of physics object
81 #endif /* !__FORCE_GRAB_H__ */