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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
#include <algorithm>
#include "hsTimer.h"
#include "plPhysicsSoundMgr.h"
#include "plPhysicalSndGroup.h"
#include "../pnKeyedObject/plFixedKey.h"
#include "../plStatusLog/plStatusLog.h"
#include "../plMessage/plAnimCmdMsg.h"
#include "../FeatureLib/pfAudio/plRandomSoundMod.h"
#define MIN_VOLUME 0.0001f
void plPhysicsSoundMgr::AddContact(plPhysical* phys1, plPhysical* phys2, const hsPoint3& hitPoint, const hsVector3& hitNormal)
{
CollidePair cp(phys1->GetKey(), phys2->GetKey(), hitPoint, hitNormal);
fCurCollisions.insert(cp);
}
void plPhysicsSoundMgr::Update()
{
// Get all the physicals that only in the new list (started colliding)
CollideSet startedColliding;
std::set_difference(fCurCollisions.begin(), fCurCollisions.end(),
fPrevCollisions.begin(), fPrevCollisions.end(),
std::inserter(startedColliding, startedColliding.begin()));
for (CollideSet::iterator it = startedColliding.begin(); it != startedColliding.end(); it++)
IStartCollision(*it);
for (CollideSet::iterator it = fPrevCollisions.begin(); it != fPrevCollisions.end(); it++)
{
CollideSet::iterator old = fCurCollisions.find(*it);
if (old != fCurCollisions.end())
{
IUpdateCollision(*it);
}
else
{
IStopCollision(*it);
}
}
fPrevCollisions = fCurCollisions;
fCurCollisions.clear();
}
void plPhysicsSoundMgr::IStartCollision(CollidePair& cp)
{
hsVector3 v1, v2;
const hsScalar strengthThreshold = 20.0f;
plPhysical* physicalA = cp.FirstPhysical();
plPhysical* physicalB = cp.SecondPhysical();
if (!physicalA || !physicalB)
return;
plPhysicalSndGroup* sndA = physicalA->GetSoundGroup();
plPhysicalSndGroup* sndB = physicalB->GetSoundGroup();
// If no impact sounds were specified in max don't do anything here.
if (!sndA->HasImpactSound(sndB->GetGroup()) &&
!sndB->HasImpactSound(sndA->GetGroup()))
return;
physicalA->GetLinearVelocitySim(v1);
physicalB->GetLinearVelocitySim(v2);
hsVector3 vel = v1 - v2;
hsScalar strength = vel.MagnitudeSquared();
if (strength >= strengthThreshold)
{
if (sndA->HasImpactSound(sndB->GetGroup()))
{
sndA->PlayImpactSound(sndB->GetGroup());
}
else
{
sndB->PlayImpactSound(sndA->GetGroup());
}
}
}
void plPhysicsSoundMgr::IStopCollision(CollidePair& cp)
{
plPhysical* physicalA = cp.FirstPhysical();
plPhysical* physicalB = cp.SecondPhysical();
if (physicalA && physicalB)
{
plPhysicalSndGroup* sndA = physicalA->GetSoundGroup();
plPhysicalSndGroup* sndB = physicalB->GetSoundGroup();
if (sndA->HasSlideSound(sndB->GetGroup()))
{
if(sndA->IsSliding())
{
sndA->StopSlideSound(sndB->GetGroup());
}
}
if (sndB->HasSlideSound(sndA->GetGroup()))
{
if(sndB->IsSliding())
{
sndB->StopSlideSound(sndA->GetGroup());
}
}
}
}
void plPhysicsSoundMgr::IUpdateCollision(CollidePair& cp)
{
const hsScalar slideThreshhold = 0.f;
hsVector3 v1, v2;
plPhysical* physicalA = cp.FirstPhysical();
plPhysical* physicalB = cp.SecondPhysical();
if (!physicalA || !physicalB)
return;
plPhysicalSndGroup* sndA = physicalA->GetSoundGroup();
plPhysicalSndGroup* sndB = physicalB->GetSoundGroup();
physicalA->GetLinearVelocitySim(v1);
physicalB->GetLinearVelocitySim(v2);
hsVector3 vel = v1 - v2;
hsScalar strength = vel.MagnitudeSquared();
// scale strength to use as volume
strength /= 16*8;
if(strength < MIN_VOLUME)
strength = 0;
if (sndA->HasSlideSound(sndB->GetGroup()))
IProcessSlide(sndA, sndB, strength);
else
IProcessSlide(sndB, sndA, strength);
}
void plPhysicsSoundMgr::IProcessSlide(plPhysicalSndGroup* sndA, plPhysicalSndGroup* sndB, hsScalar strength)
{
sndA->SetSlideSoundVolume(sndB->GetGroup(), strength);
if(strength > MIN_VOLUME)
{
if(!sndA->IsSliding())
{
sndA->PlaySlideSound(sndB->GetGroup());
}
}
}
//////////////////////////////////////////////////////////////////////////
plPhysicsSoundMgr::CollidePair::CollidePair(const plKey& firstPhys, const plKey& secondPhys, const hsPoint3& point, const hsVector3& normal)
{
// To simplify searching and sorting, all pairs are set up with the pointer value of the
// first element greater than the pointer value of the second.
if (firstPhys->GetObjectPtr() < secondPhys->GetObjectPtr())
{
this->firstPhysKey = secondPhys;
this->secondPhysKey = firstPhys;
}
else
{
this->firstPhysKey = firstPhys;
this->secondPhysKey = secondPhys;
}
this->point = point;
this->normalForce = normal;
}
bool plPhysicsSoundMgr::CollidePair::operator<(const CollidePair& rhs) const
{
return (firstPhysKey->GetObjectPtr() < rhs.firstPhysKey->GetObjectPtr()
|| (rhs.firstPhysKey->GetObjectPtr() == firstPhysKey->GetObjectPtr() && secondPhysKey->GetObjectPtr() < rhs.secondPhysKey->GetObjectPtr()));
}
bool plPhysicsSoundMgr::CollidePair::operator==(const CollidePair& rhs) const
{
if (firstPhysKey == rhs.firstPhysKey && secondPhysKey == rhs.secondPhysKey)
return true;
return false;
}
plPhysical* plPhysicsSoundMgr::CollidePair::FirstPhysical() const
{
return firstPhysKey ? static_cast<plPhysical*>(firstPhysKey->GetObjectPtr()) : nil;
}
plPhysical* plPhysicsSoundMgr::CollidePair::SecondPhysical() const
{
return secondPhysKey ? static_cast<plPhysical*>(secondPhysKey->GetObjectPtr()) : nil;
}