mirror of
https://github.com/id-Software/DOOM-3-BFG.git
synced 2024-12-02 17:02:17 +00:00
170 lines
4.2 KiB
C++
170 lines
4.2 KiB
C++
/*
|
|
===========================================================================
|
|
|
|
Doom 3 BFG Edition GPL Source Code
|
|
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
|
|
|
|
This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
|
|
|
|
Doom 3 BFG Edition Source Code 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.
|
|
|
|
Doom 3 BFG Edition Source Code 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 Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
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.
|
|
|
|
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.
|
|
|
|
===========================================================================
|
|
*/
|
|
|
|
#pragma hdrstop
|
|
#include "../../idlib/precompiled.h"
|
|
|
|
|
|
#include "../Game_local.h"
|
|
|
|
CLASS_DECLARATION( idForce, idForce_Drag )
|
|
END_CLASS
|
|
|
|
/*
|
|
================
|
|
idForce_Drag::idForce_Drag
|
|
================
|
|
*/
|
|
idForce_Drag::idForce_Drag()
|
|
{
|
|
damping = 0.5f;
|
|
physics = NULL;
|
|
id = 0;
|
|
p = vec3_zero;
|
|
dragPosition = vec3_zero;
|
|
}
|
|
|
|
/*
|
|
================
|
|
idForce_Drag::~idForce_Drag
|
|
================
|
|
*/
|
|
idForce_Drag::~idForce_Drag()
|
|
{
|
|
}
|
|
|
|
/*
|
|
================
|
|
idForce_Drag::Init
|
|
================
|
|
*/
|
|
void idForce_Drag::Init( float damping )
|
|
{
|
|
if( damping >= 0.0f && damping < 1.0f )
|
|
{
|
|
this->damping = damping;
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
idForce_Drag::SetPhysics
|
|
================
|
|
*/
|
|
void idForce_Drag::SetPhysics( idPhysics* phys, int id, const idVec3& p )
|
|
{
|
|
this->physics = phys;
|
|
this->id = id;
|
|
this->p = p;
|
|
}
|
|
|
|
/*
|
|
================
|
|
idForce_Drag::SetDragPosition
|
|
================
|
|
*/
|
|
void idForce_Drag::SetDragPosition( const idVec3& pos )
|
|
{
|
|
this->dragPosition = pos;
|
|
}
|
|
|
|
/*
|
|
================
|
|
idForce_Drag::GetDragPosition
|
|
================
|
|
*/
|
|
const idVec3& idForce_Drag::GetDragPosition() const
|
|
{
|
|
return this->dragPosition;
|
|
}
|
|
|
|
/*
|
|
================
|
|
idForce_Drag::GetDraggedPosition
|
|
================
|
|
*/
|
|
const idVec3 idForce_Drag::GetDraggedPosition() const
|
|
{
|
|
return ( physics->GetOrigin( id ) + p * physics->GetAxis( id ) );
|
|
}
|
|
|
|
/*
|
|
================
|
|
idForce_Drag::Evaluate
|
|
================
|
|
*/
|
|
void idForce_Drag::Evaluate( int time )
|
|
{
|
|
float l1, l2, mass;
|
|
idVec3 dragOrigin, dir1, dir2, velocity, centerOfMass;
|
|
idMat3 inertiaTensor;
|
|
idRotation rotation;
|
|
idClipModel* clipModel;
|
|
|
|
if( !physics )
|
|
{
|
|
return;
|
|
}
|
|
|
|
clipModel = physics->GetClipModel( id );
|
|
if( clipModel != NULL && clipModel->IsTraceModel() )
|
|
{
|
|
clipModel->GetMassProperties( 1.0f, mass, centerOfMass, inertiaTensor );
|
|
}
|
|
else
|
|
{
|
|
centerOfMass.Zero();
|
|
}
|
|
|
|
centerOfMass = physics->GetOrigin( id ) + centerOfMass * physics->GetAxis( id );
|
|
dragOrigin = physics->GetOrigin( id ) + p * physics->GetAxis( id );
|
|
|
|
dir1 = dragPosition - centerOfMass;
|
|
dir2 = dragOrigin - centerOfMass;
|
|
l1 = dir1.Normalize();
|
|
l2 = dir2.Normalize();
|
|
|
|
rotation.Set( centerOfMass, dir2.Cross( dir1 ), RAD2DEG( idMath::ACos( dir1 * dir2 ) ) );
|
|
physics->SetAngularVelocity( rotation.ToAngularVelocity() / MS2SEC( gameLocal.time - gameLocal.previousTime ), id );
|
|
|
|
velocity = physics->GetLinearVelocity( id ) * damping + dir1 * ( ( l1 - l2 ) * ( 1.0f - damping ) / MS2SEC( gameLocal.time - gameLocal.previousTime ) );
|
|
physics->SetLinearVelocity( velocity, id );
|
|
}
|
|
|
|
/*
|
|
================
|
|
idForce_Drag::RemovePhysics
|
|
================
|
|
*/
|
|
void idForce_Drag::RemovePhysics( const idPhysics* phys )
|
|
{
|
|
if( physics == phys )
|
|
{
|
|
physics = NULL;
|
|
}
|
|
}
|