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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 "plFollowMod.h"
#include "plgDispatch.h"
#include "../pnNetCommon/plNetApp.h"
#include "../plMessage/plListenerMsg.h"
#include "../plMessage/plRenderMsg.h"
#include "../pnMessage/plTimeMsg.h"
#include "../pnSceneObject/plSceneObject.h"
#include "../pnMessage/plRefMsg.h"
#include "hsResMgr.h"
#include "plPipeline.h"
plFollowMod::plFollowMod()
: fLeader(nil), fMode(kPosition), fLeaderType(kLocalPlayer), fLeaderSet(false)
{
}
plFollowMod::~plFollowMod()
{
}
#include "plProfile.h"
plProfile_CreateTimer("FollowMod", "RenderSetup", FollowMod);
hsBool plFollowMod::MsgReceive(plMessage* msg)
{
plRenderMsg* rend = plRenderMsg::ConvertNoRef(msg);
if( rend )
{
plProfile_BeginLap(FollowMod, this->GetKey()->GetUoid().GetObjectName());
fLeaderL2W = rend->Pipeline()->GetCameraToWorld();
fLeaderW2L = rend->Pipeline()->GetWorldToCamera();
fLeaderSet = true;
plProfile_EndLap(FollowMod, this->GetKey()->GetUoid().GetObjectName());
return true;
}
plListenerMsg* list = plListenerMsg::ConvertNoRef(msg);
if( list )
{
hsVector3 pos;
pos.Set(list->GetPosition().fX, list->GetPosition().fY, list->GetPosition().fZ);
fLeaderL2W.MakeTranslateMat(&pos);
fLeaderW2L.MakeTranslateMat(&-pos);
fLeaderSet = true;
return true;
}
plGenRefMsg* ref = plGenRefMsg::ConvertNoRef(msg);
if( ref )
{
switch( ref->fType )
{
case kRefLeader:
if( ref->GetContext() & (plRefMsg::kOnCreate|plRefMsg::kOnRequest|plRefMsg::kOnReplace) )
fLeader = plSceneObject::ConvertNoRef(ref->GetRef());
else if( ref->GetContext() & (plRefMsg::kOnDestroy|plRefMsg::kOnRemove) )
fLeader = nil;
return true;
default:
hsAssert(false, "Unknown ref type to FollowMod");
break;
}
}
return plSingleModifier::MsgReceive(msg);
}
hsBool plFollowMod::ICheckLeader()
{
switch( fLeaderType )
{
case kLocalPlayer:
{
plSceneObject* player = plSceneObject::ConvertNoRef(plNetClientApp::GetInstance()->GetLocalPlayer());
if( player )
{
fLeaderL2W = player->GetLocalToWorld();
fLeaderW2L = player->GetWorldToLocal();
fLeaderSet = true;
}
else
fLeaderSet = false;
}
break;
case kObject:
if( fLeader )
{
fLeaderL2W = fLeader->GetLocalToWorld();
fLeaderW2L = fLeader->GetWorldToLocal();
fLeaderSet = true;
}
else
fLeaderSet = false;
break;
case kCamera:
break;
case kListener:
break;
}
return fLeaderSet;
}
void plFollowMod::IMoveTarget()
{
if( fMode == kFullTransform )
{
GetTarget()->SetTransform(fLeaderL2W, fLeaderW2L);
return;
}
hsMatrix44 l2w = GetTarget()->GetLocalToWorld();
hsMatrix44 w2l = GetTarget()->GetWorldToLocal();
if( fMode & kRotate )
{
int i, j;
for( i = 0; i < 3; i++ )
{
for( j = 0; j < 3; j++ )
{
l2w.fMap[i][j] = fLeaderL2W.fMap[i][j];
w2l.fMap[i][j] = fLeaderW2L.fMap[i][j];
}
}
}
if( fMode & kPosition )
{
hsMatrix44 invMove;
invMove.Reset();
hsPoint3 newPos = fLeaderL2W.GetTranslate();
hsPoint3 newInvPos = fLeaderW2L.GetTranslate();
hsPoint3 oldPos = l2w.GetTranslate();
// l2w = newPosMat * -oldPosMat * l2w
// so w2l = w2l * inv-oldPosMat * invNewPosMat
if( fMode & kPositionX )
{
l2w.fMap[0][3] = newPos.fX;
invMove.fMap[0][3] = oldPos.fX - newPos.fX;
}
if( fMode & kPositionY )
{
l2w.fMap[1][3] = newPos.fY;
invMove.fMap[1][3] = oldPos.fY - newPos.fY;
}
if( fMode & kPositionZ )
{
l2w.fMap[2][3] = newPos.fZ;
invMove.fMap[2][3] = oldPos.fZ - newPos.fZ;
}
invMove.NotIdentity();
// InvMove must happen after rotation.
w2l = w2l * invMove;
}
l2w.NotIdentity();
w2l.NotIdentity();
#ifdef HS_DEBUGGING
//MFHORSE hackola
hsMatrix44 inv;
l2w.GetInverse(&inv);
#endif // HS_DEBUGGING
GetTarget()->SetTransform(l2w, w2l);
}
hsBool plFollowMod::IEval(double secs, hsScalar del, UInt32 dirty)
{
if( ICheckLeader() )
IMoveTarget();
return true;
}
void plFollowMod::SetTarget(plSceneObject* so)
{
plSingleModifier::SetTarget(so);
if( fTarget )
Activate();
else
Deactivate();
}
void plFollowMod::Activate()
{
switch( fLeaderType )
{
case kLocalPlayer:
break;
case kObject:
break;
case kCamera:
plgDispatch::Dispatch()->RegisterForExactType(plRenderMsg::Index(), GetKey());
break;
case kListener:
plgDispatch::Dispatch()->RegisterForExactType(plListenerMsg::Index(), GetKey());
break;
}
if( fTarget )
plgDispatch::Dispatch()->RegisterForExactType(plEvalMsg::Index(), GetKey());
}
void plFollowMod::Deactivate()
{
switch( fLeaderType )
{
case kLocalPlayer:
if( fTarget )
plgDispatch::Dispatch()->UnRegisterForExactType(plEvalMsg::Index(), GetKey());
break;
case kObject:
if( fTarget )
plgDispatch::Dispatch()->UnRegisterForExactType(plEvalMsg::Index(), GetKey());
break;
case kCamera:
plgDispatch::Dispatch()->UnRegisterForExactType(plRenderMsg::Index(), GetKey());
break;
case kListener:
plgDispatch::Dispatch()->UnRegisterForExactType(plListenerMsg::Index(), GetKey());
break;
}
}
void plFollowMod::Read(hsStream* stream, hsResMgr* mgr)
{
plSingleModifier::Read(stream, mgr);
fLeaderType = FollowLeaderType(stream->ReadByte());
fMode = stream->ReadByte();
mgr->ReadKeyNotifyMe(stream, TRACKED_NEW plGenRefMsg(GetKey(), plRefMsg::kOnCreate, 0, kRefLeader), plRefFlags::kActiveRef);
// If active?
Activate();
}
void plFollowMod::Write(hsStream* stream, hsResMgr* mgr)
{
plSingleModifier::Write(stream, mgr);
stream->WriteByte(fLeaderType);
stream->WriteByte(fMode);
mgr->WriteKey(stream, fLeader);
}