Torque3D/Engine/source/T3D/physics/physx/pxContactReporter.cpp
2012-09-19 11:15:01 -04:00

108 lines
3.8 KiB
C++

//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#include "platform/platform.h"
#include "T3D/physics/physX/pxContactReporter.h"
#include "T3D/physics/physX/pxCasts.h"
#include "T3D/physics/physicsUserData.h"
#include "T3D/physics/physX/pxMultiActor.h"
#include "platform/profiler.h"
PxContactReporter::PxContactReporter()
{
}
PxContactReporter::~PxContactReporter()
{
}
void PxContactReporter::onContactNotify( NxContactPair &pair, NxU32 events )
{
PROFILE_SCOPE( PxContactReporter_OnContactNotify );
// For now we only care about start touch events.
if ( !( events & NX_NOTIFY_ON_START_TOUCH ) )
return;
// Skip if either actor is deleted.
if ( pair.isDeletedActor[0] || pair.isDeletedActor[1] )
return;
NxActor *actor0 = pair.actors[0];
NxActor *actor1 = pair.actors[1];
PhysicsUserData *userData0 = PhysicsUserData::cast( actor0->userData );
PhysicsUserData *userData1 = PhysicsUserData::cast( actor1->userData );
// Early out if we don't have user data or signals to notify.
if ( ( !userData0 || userData0->getContactSignal().isEmpty() ) &&
( !userData1 || userData1->getContactSignal().isEmpty() ) )
return;
// Get an average contact point.
U32 points = 0;
NxVec3 hitPoint( 0.0f );
NxContactStreamIterator iter( pair.stream );
while( iter.goNextPair() )
{
while( iter.goNextPatch() )
{
while( iter.goNextPoint() )
{
hitPoint += iter.getPoint();
++points;
}
}
}
hitPoint /= (F32)points;
if ( userData0 )
userData0->getContactSignal().trigger( userData0,
userData1,
pxCast<Point3F>( hitPoint ),
pxCast<Point3F>( pair.sumNormalForce ) );
if ( userData1 )
userData1->getContactSignal().trigger( userData1,
userData0,
pxCast<Point3F>( hitPoint ),
pxCast<Point3F>( -pair.sumNormalForce ) );
}
bool PxUserNotify::onJointBreak( NxReal breakingForce, NxJoint &brokenJoint )
{
PROFILE_SCOPE( PxUserNotify_OnJointBreak );
PxUserData *userData = PxUserData::getData( brokenJoint );
if ( userData )
userData->getOnJointBreakSignal().trigger( breakingForce, brokenJoint );
// NOTE: Returning true here will tell the
// PhysX SDK to delete the joint, which will
// cause MANY problems if any of the user app's
// objects still hold references to it.
return false;
}