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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 "hsTypes.h"
#include "plCoordinateInterface.h"
#include "plDrawInterface.h"
#include "plSimulationInterface.h"
#include "plAudioInterface.h"
#include "pnMessage/plWarpMsg.h"
#include "pnMessage/plTimeMsg.h"
#include "pnMessage/plCorrectionMsg.h"
#include "pnMessage/plIntRefMsg.h"
#include "pnNetCommon/plSDLTypes.h"
#include "plSceneObject.h"
#include "hsResMgr.h"
#include "plgDispatch.h"
#include "pnKeyedObject/plKey.h"
#include "hsStream.h"
#include "plProfile.h"
UInt8 plCoordinateInterface::fTransformPhase = plCoordinateInterface::kTransformPhaseNormal;
hsBool plCoordinateInterface::fDelayedTransformsEnabled = true;
plCoordinateInterface::plCoordinateInterface()
: fParent(nil),
fReason(kReasonUnknown)
{
fLocalToParent.Reset();
fParentToLocal.Reset();
fLocalToWorld.Reset();
fWorldToLocal.Reset();
fState = 0;
}
plCoordinateInterface::~plCoordinateInterface()
{
if( fParent )
fParent->IRemoveChild(IGetOwner());
int i;
for( i = fChildren.GetCount()-1; i >= 0; i-- )
IRemoveChild(i);
}
void plCoordinateInterface::ISetSceneNode(plKey newNode)
{
int i;
for( i = 0; i < fChildren.GetCount(); i++ )
{
if( fChildren[i] )
fChildren[i]->SetSceneNode(newNode);
}
}
void plCoordinateInterface::ISetOwner(plSceneObject* so)
{
plObjInterface::ISetOwner(so);
IDirtyTransform();
fReason |= kReasonUnknown;
}
void plCoordinateInterface::ISetParent(plCoordinateInterface* par)
{
fParent = par;
// This won't have any effect if my owner is NetGroupConstant
if( fParent )
ISetNetGroupRecur(fParent->GetNetGroup());
IDirtyTransform();
fReason |= kReasonUnknown;
}
plCoordinateInterface* plCoordinateInterface::GetChild(int i) const
{
return fChildren[i] ? fChildren[i]->GetVolatileCoordinateInterface() : nil;
}
void plCoordinateInterface::IRemoveChild(int i)
{
if( fChildren[i] )
{
plCoordinateInterface* childCI = fChildren[i]->GetVolatileCoordinateInterface();
if( childCI )
childCI->ISetParent(nil);
}
fChildren.Remove(i);
}
void plCoordinateInterface::IRemoveChild(plSceneObject* child)
{
int idx = fChildren.Find(child);
if( idx != fChildren.kMissingIndex )
IRemoveChild(idx);
}
void plCoordinateInterface::ISetChild(plSceneObject* child, int which)
{
hsAssert(child, "Setting a nil child");
plCoordinateInterface* childCI = child->GetVolatileCoordinateInterface();
hsAssert(childCI, "Child with no coordinate interface");
childCI->ISetParent(this);
if( which < 0 )
which = fChildren.GetCount();
fChildren.ExpandAndZero(which+1);
fChildren[which] = child;
// If we can't delay our transform update, neither can any of our parents.
if (!childCI->GetProperty(kDelayedTransformEval))
{
plCoordinateInterface *current = childCI->GetParent();
while (current)
{
current->SetProperty(kDelayedTransformEval, false);
current = current->GetParent();
}
}
}
void plCoordinateInterface::IAddChild(plSceneObject* child)
{
ISetChild(child, -1);
}
void plCoordinateInterface::IAttachChild(plSceneObject* child, UInt8 flags)
{
hsAssert(child, "Attaching a nil child");
plCoordinateInterface* childCI = child->GetVolatileCoordinateInterface();
hsAssert(childCI, "Owner without CoordinateInterface being attached");
if (childCI->GetParent() == this)
return; // We're already attached! Who told us to do this?
hsMatrix44 l2w = childCI->GetLocalToWorld();
hsMatrix44 w2l = childCI->GetWorldToLocal();
if( childCI->GetParent() )
childCI->GetParent()->IDetachChild(child, flags | kAboutToAttach);
childCI->IUnRegisterForTransformMessage();
IAddChild(child);
if( flags & kMaintainWorldPosition )
childCI->WarpToWorld(l2w,w2l);
}
void plCoordinateInterface::IDetachChild(plSceneObject* child, UInt8 flags)
{
hsAssert(child, "Detaching a nil child");
plCoordinateInterface* childCI = child->GetVolatileCoordinateInterface();
hsAssert(childCI, "Owner without CoordinateInterface being attached");
hsMatrix44 l2w = childCI->GetLocalToWorld();
hsMatrix44 w2l = childCI->GetWorldToLocal();
GetKey()->Release(child->GetKey());
if( IGetOwner() && IGetOwner()->GetKey() )
IGetOwner()->GetKey()->Release(child->GetKey());
IRemoveChild(child);
if( flags & kMaintainWorldPosition )
childCI->WarpToWorld(l2w,w2l);
// If the child was keeping us from delaying our transform,
// maybe we can, now that it's gone.
if (!childCI->GetProperty(kDelayedTransformEval))
IUpdateDelayProp();
}
/*
* A few notes on the delay transform properties...
*
* The kCanEverDelayTransform prop is independent of any parents/children.
* It means this particular node must always update its transform in response
* to a plTransformMsg. It is intended for objects with physics, because they
* need to be up-to-date before the simulationMgr updates the physical world.
*
* The kDelayedTransformEval prop is for nodes that are free of physics. (So no
* physical descendants either). If the property is set, we won't update our
* transform until AFTER the simulationMgr does its work.
*
* When we attach a child that can't delay its eval (at the moment), we recurse
* up to the root, turning off the kDelayedTransformEval prop as we go. When we
* remove such a child, we check if that child was the only reason we weren't
* delaying our transform. If so, we update ourself and tell our parent to check.
*
* BTW: The POINT of all this is that when we update our l2w transforms because
* we're animated, and then we update AGAIN after a parent node of ours involved
* in physics gets a slight nudge, the first update becomes pointless. The
* delay prop bookkeeping keeps us from doing the wasted calculations. And since
* nearly all bones on the avatar are in this exact situation, it's worth doing.
*/
void plCoordinateInterface::IUpdateDelayProp()
{
int i;
if (!GetProperty(kCanEverDelayTransform))
return;
for (i = 0; i < GetNumChildren(); i++)
{
// If we still have a child that needs the delay...
if (!GetChild(i)->GetProperty(kDelayedTransformEval))
return;
}
// Cool, we can delay now, which means maybe our parent can too.
SetProperty(kDelayedTransformEval, true);
if (GetParent())
GetParent()->IUpdateDelayProp();
}
plCoordinateInterface* plCoordinateInterface::IGetRoot()
{
return fParent ? fParent->IGetRoot() : this;
}
void plCoordinateInterface::IRegisterForTransformMessage(hsBool delayed)
{
if( IGetOwner() )
{
if ((delayed || fTransformPhase == kTransformPhaseDelayed) && fDelayedTransformsEnabled)
plgDispatch::Dispatch()->RegisterForExactType(plDelayedTransformMsg::Index(), IGetOwner()->GetKey());
else
plgDispatch::Dispatch()->RegisterForExactType(plTransformMsg::Index(), IGetOwner()->GetKey());
}
}
void plCoordinateInterface::IUnRegisterForTransformMessage()
{
if( IGetOwner() )
plgDispatch::Dispatch()->UnRegisterForExactType(plTransformMsg::Index(), IGetOwner()->GetKey());
}
void plCoordinateInterface::IDirtyTransform()
{
fState |= kTransformDirty;
IGetRoot()->IRegisterForTransformMessage(GetProperty(kDelayedTransformEval));
}
void plCoordinateInterface::MultTransformLocal(const hsMatrix44& move, const hsMatrix44& invMove)
{
fReason |= kReasonUnknown;
fLocalToParent = move * fLocalToParent;
fParentToLocal = fParentToLocal * invMove;
IDirtyTransform();
}
void plCoordinateInterface::SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l)
{
fReason |= kReasonUnknown;
if( fParent )
{
SetLocalToParent(fParent->GetWorldToLocal() * l2w, w2l * fParent->GetLocalToWorld());
}
else
{
SetLocalToParent(l2w, w2l);
}
}
void plCoordinateInterface::SetTransformPhysical(const hsMatrix44& l2w, const hsMatrix44& w2l)
{
// since we use public interfaces to do the details
// AND those public interfaces could be called by anyone
// AND those public interfaces therefore have to set their own "reason" for the transform change
// THEREFORE: we need to preserve the "reason" flags before we call the public interfaces
// so that we don't get reasonPhysics + reasonUnknown, just reasonPhysics
UInt16 oldReason = fReason;
if( fParent )
{
SetLocalToParent(fParent->GetWorldToLocal() * l2w, w2l * fParent->GetLocalToWorld());
}
else
{
SetLocalToParent(l2w, w2l);
}
fReason = oldReason | kReasonPhysics;
}
UInt16 plCoordinateInterface::GetReasons()
{
return fReason;
}
void plCoordinateInterface::ClearReasons()
{
fReason = nil;
}
void plCoordinateInterface::SetLocalToParent(const hsMatrix44& l2p, const hsMatrix44& p2l)
{
fReason |= kReasonUnknown;
fLocalToParent = l2p;
fParentToLocal = p2l;
IDirtyTransform();
}
void plCoordinateInterface::WarpToLocal(const hsMatrix44& l2p, const hsMatrix44& p2l)
{
fReason |= kReasonUnknown;
SetLocalToParent(l2p, p2l);
// update physical state when an object is warped
if (IGetOwner())
IGetOwner()->DirtySynchState(kSDLPhysical, 0);
}
void plCoordinateInterface::WarpToWorld(const hsMatrix44& l2w, const hsMatrix44& w2l)
{
fReason |= kReasonUnknown;
if( fParent )
{
hsMatrix44 l2p = fParent->GetWorldToLocal() * l2w;
hsMatrix44 p2l = w2l * fParent->GetLocalToWorld();
WarpToLocal(l2p, p2l);
}
else
{
WarpToLocal(l2w, w2l);
}
}
plProfile_CreateCounter("CITrans", "Object", CITrans);
plProfile_CreateCounter(" CIRecalc", "Object", CIRecalc);
plProfile_CreateCounter(" CIDirty", "Object", CIDirty);
plProfile_CreateCounter(" CISet", "Object", CISet);
plProfile_CreateTimer("CITransT", "Object", CITransT);
plProfile_CreateTimer(" CIRecalcT", "Object", CIRecalcT);
plProfile_CreateTimer(" CIDirtyT", "Object", CIDirtyT);
plProfile_CreateTimer(" CISetT", "Object", CISetT);
static inline hsMatrix44 IMatrixMul34(const hsMatrix44& lhs, const hsMatrix44& rhs)
{
hsMatrix44 ret;
ret.NotIdentity();
ret.fMap[3][0] = ret.fMap[3][1] = ret.fMap[3][2] = 0;
ret.fMap[3][3] = 1.f;
ret.fMap[0][0] = lhs.fMap[0][0] * rhs.fMap[0][0]
+ lhs.fMap[0][1] * rhs.fMap[1][0]
+ lhs.fMap[0][2] * rhs.fMap[2][0];
ret.fMap[0][1] = lhs.fMap[0][0] * rhs.fMap[0][1]
+ lhs.fMap[0][1] * rhs.fMap[1][1]
+ lhs.fMap[0][2] * rhs.fMap[2][1];
ret.fMap[0][2] = lhs.fMap[0][0] * rhs.fMap[0][2]
+ lhs.fMap[0][1] * rhs.fMap[1][2]
+ lhs.fMap[0][2] * rhs.fMap[2][2];
ret.fMap[0][3] = lhs.fMap[0][0] * rhs.fMap[0][3]
+ lhs.fMap[0][1] * rhs.fMap[1][3]
+ lhs.fMap[0][2] * rhs.fMap[2][3]
+ lhs.fMap[0][3];
ret.fMap[1][0] = lhs.fMap[1][0] * rhs.fMap[0][0]
+ lhs.fMap[1][1] * rhs.fMap[1][0]
+ lhs.fMap[1][2] * rhs.fMap[2][0];
ret.fMap[1][1] = lhs.fMap[1][0] * rhs.fMap[0][1]
+ lhs.fMap[1][1] * rhs.fMap[1][1]
+ lhs.fMap[1][2] * rhs.fMap[2][1];
ret.fMap[1][2] = lhs.fMap[1][0] * rhs.fMap[0][2]
+ lhs.fMap[1][1] * rhs.fMap[1][2]
+ lhs.fMap[1][2] * rhs.fMap[2][2];
ret.fMap[1][3] = lhs.fMap[1][0] * rhs.fMap[0][3]
+ lhs.fMap[1][1] * rhs.fMap[1][3]
+ lhs.fMap[1][2] * rhs.fMap[2][3]
+ lhs.fMap[1][3];
ret.fMap[2][0] = lhs.fMap[2][0] * rhs.fMap[0][0]
+ lhs.fMap[2][1] * rhs.fMap[1][0]
+ lhs.fMap[2][2] * rhs.fMap[2][0];
ret.fMap[2][1] = lhs.fMap[2][0] * rhs.fMap[0][1]
+ lhs.fMap[2][1] * rhs.fMap[1][1]
+ lhs.fMap[2][2] * rhs.fMap[2][1];
ret.fMap[2][2] = lhs.fMap[2][0] * rhs.fMap[0][2]
+ lhs.fMap[2][1] * rhs.fMap[1][2]
+ lhs.fMap[2][2] * rhs.fMap[2][2];
ret.fMap[2][3] = lhs.fMap[2][0] * rhs.fMap[0][3]
+ lhs.fMap[2][1] * rhs.fMap[1][3]
+ lhs.fMap[2][2] * rhs.fMap[2][3]
+ lhs.fMap[2][3];
return ret;
}
void plCoordinateInterface::IRecalcTransforms()
{
plProfile_IncCount(CIRecalc, 1);
plProfile_BeginTiming(CIRecalcT);
if( fParent )
{
#if 0
fLocalToWorld = fParent->GetLocalToWorld() * fLocalToParent;
fWorldToLocal = fParentToLocal * fParent->GetWorldToLocal();
#else
fLocalToWorld = IMatrixMul34(fParent->GetLocalToWorld(), fLocalToParent);
fWorldToLocal = IMatrixMul34(fParentToLocal, fParent->GetWorldToLocal());
#endif
}
else
{
fLocalToWorld = fLocalToParent;
fWorldToLocal = fParentToLocal;
}
plProfile_EndTiming(CIRecalcT);
}
void plCoordinateInterface::ITransformChanged(hsBool force, UInt16 reasons, hsBool checkForDelay)
{
plProfile_IncCount(CITrans, 1);
plProfile_BeginTiming(CITransT);
// inherit reasons for transform change from our parents
fReason |= reasons;
UInt16 propagateReasons = fReason;
hsBool process = !(checkForDelay && GetProperty(kDelayedTransformEval)) || !fDelayedTransformsEnabled;
if (process)
{
if( fState & kTransformDirty )
force = true;
}
if( force )
{
IRecalcTransforms();
plProfile_IncCount(CISet, 1);
plProfile_BeginTiming(CISetT);
if( IGetOwner() )
{
IGetOwner()->ISetTransform(fLocalToWorld, fWorldToLocal);
}
plProfile_EndTiming(CISetT);
fState &= ~kTransformDirty;
}
plProfile_EndTiming(CITransT);
if (process)
{
int i;
for( i = 0; i < fChildren.GetCount(); i++ )
{
if( fChildren[i] && fChildren[i]->GetVolatileCoordinateInterface() )
fChildren[i]->GetVolatileCoordinateInterface()->ITransformChanged(force, propagateReasons, checkForDelay);
}
}
else if (force)
{
plProfile_IncCount(CIDirty, 1);
plProfile_BeginTiming(CITransT);
// Our parent is dirty and we're bailing out on evaluating right now.
// Need to ensure we'll be evaluated in the delay pass
plProfile_BeginTiming(CIDirtyT);
IDirtyTransform();
plProfile_EndTiming(CIDirtyT);
plProfile_EndTiming(CITransT);
}
}
void plCoordinateInterface::FlushTransform(hsBool fromRoot)
{
if( fromRoot )
IGetRoot()->ITransformChanged(false, 0, false);
else
ITransformChanged(false, 0, false);
}
void plCoordinateInterface::ISetNetGroupRecur(plNetGroupId netGroup)
{
if( !IGetOwner() )
return;
if( IGetOwner()->GetSynchFlags() & kHasConstantNetGroup )
return;
IGetOwner()->plSynchedObject::SetNetGroup(netGroup);
int i;
for( i = 0; i < GetNumChildren(); i++ )
{
if( GetChild(i) )
{
GetChild(i)->ISetNetGroupRecur(netGroup);
}
}
}
void plCoordinateInterface::Read(hsStream* stream, hsResMgr* mgr)
{
plObjInterface::Read(stream, mgr);
fLocalToParent.Read(stream);
fParentToLocal.Read(stream);
fLocalToWorld.Read(stream);
fWorldToLocal.Read(stream);
int n = stream->ReadSwap32();
int i;
for( i = 0; i < n; i++ )
{
plIntRefMsg* refMsg = TRACKED_NEW plIntRefMsg(GetKey(), plRefMsg::kOnCreate, -1, plIntRefMsg::kChildObject);
mgr->ReadKeyNotifyMe(stream,refMsg, plRefFlags::kPassiveRef);
}
}
void plCoordinateInterface::Write(hsStream* stream, hsResMgr* mgr)
{
plObjInterface::Write(stream, mgr);
fLocalToParent.Write(stream);
fParentToLocal.Write(stream);
fLocalToWorld.Write(stream);
fWorldToLocal.Write(stream);
stream->WriteSwap32(fChildren.GetCount());
int i;
for( i = 0; i < fChildren.GetCount(); i++ )
mgr->WriteKey(stream, fChildren[i]);
}
hsBool plCoordinateInterface::MsgReceive(plMessage* msg)
{
hsBool retVal = false;
plIntRefMsg* intRefMsg;
plCorrectionMsg* corrMsg;
// warp message
plWarpMsg* pWarpMsg = plWarpMsg::ConvertNoRef(msg);
if (pWarpMsg)
{
hsMatrix44 l2w = pWarpMsg->GetTransform();
hsMatrix44 inv;
l2w.GetInverse(&inv);
WarpToWorld(l2w,inv);
if (pWarpMsg->GetWarpFlags() & plWarpMsg::kFlushTransform)
ITransformChanged(false, kReasonUnknown, false);
return true;
}
else if( intRefMsg = plIntRefMsg::ConvertNoRef(msg) )
{
switch( intRefMsg->fType )
{
case plIntRefMsg::kChildObject:
case plIntRefMsg::kChild:
{
plSceneObject* co = nil;
if( intRefMsg->fType == plIntRefMsg::kChildObject )
{
co = plSceneObject::ConvertNoRef(intRefMsg->GetRef());
}
else
{
plCoordinateInterface* ci = plCoordinateInterface::ConvertNoRef(intRefMsg->GetRef());
co = ci ? ci->IGetOwner() : nil;
}
if( intRefMsg->GetContext() & (plRefMsg::kOnCreate|plRefMsg::kOnReplace) )
{
ISetChild(co, intRefMsg->fWhich);
}
else if( intRefMsg->GetContext() & plRefMsg::kOnDestroy )
{
IRemoveChild(co);
}
else if( intRefMsg->GetContext() & plRefMsg::kOnRequest )
{
IAttachChild(co, kMaintainWorldPosition|kMaintainSceneNode);
}
else if( intRefMsg->GetContext() & plRefMsg::kOnRemove )
{
IDetachChild(co, kMaintainWorldPosition|kMaintainSceneNode);
}
}
return true;
default:
break;
}
}
else if( corrMsg = plCorrectionMsg::ConvertNoRef(msg) )
{
SetTransformPhysical(corrMsg->fLocalToWorld, corrMsg->fWorldToLocal);
if(corrMsg->fDirtySynch)
{
if (IGetOwner())
IGetOwner()->DirtySynchState(kSDLPhysical, 0);
}
return true;
}
return plObjInterface::MsgReceive(msg);
}