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/**
* @file llpathfindinglinksets.cpp
* @author William Todd Stinson
* @brief Definition of a pathfinding linkset that contains various properties required for havok pathfinding.
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "llpathfindinglinkset.h"
#include "llsd.h"
#include "v3math.h"
#include "lluuid.h"
#define LINKSET_NAME_FIELD "name"
#define LINKSET_DESCRIPTION_FIELD "description"
#define LINKSET_LAND_IMPACT_FIELD "landimpact"
#define LINKSET_MODIFIABLE_FIELD "modifiable"
#define LINKSET_PERMANENT_FIELD "permanent"
#define LINKSET_WALKABLE_FIELD "walkable"
#define LINKSET_PHANTOM_FIELD "phantom"
#define LINKSET_WALKABILITY_A_FIELD "A"
#define LINKSET_WALKABILITY_B_FIELD "B"
#define LINKSET_WALKABILITY_C_FIELD "C"
#define LINKSET_WALKABILITY_D_FIELD "D"
#define LINKSET_POSITION_FIELD "position"
//---------------------------------------------------------------------------
// LLPathfindingLinkset
//---------------------------------------------------------------------------
const S32 LLPathfindingLinkset::MIN_WALKABILITY_VALUE(0);
const S32 LLPathfindingLinkset::MAX_WALKABILITY_VALUE(100);
LLPathfindingLinkset::LLPathfindingLinkset(const LLSD& pTerrainLinksetItem)
: mUUID(),
mIsTerrain(true),
mName(),
mDescription(),
mLandImpact(0U),
mLocation(LLVector3::zero),
mIsLocked(TRUE),
mLinksetUse(kUnknown),
mWalkabilityCoefficientA(MIN_WALKABILITY_VALUE),
mWalkabilityCoefficientB(MIN_WALKABILITY_VALUE),
mWalkabilityCoefficientC(MIN_WALKABILITY_VALUE),
mWalkabilityCoefficientD(MIN_WALKABILITY_VALUE)
{
parsePathfindingData(pTerrainLinksetItem);
}
LLPathfindingLinkset::LLPathfindingLinkset(const std::string &pUUID, const LLSD& pLinksetItem)
: mUUID(pUUID),
mIsTerrain(false),
mName(),
mDescription(),
mLandImpact(0U),
mLocation(LLVector3::zero),
mIsLocked(FALSE),
mLinksetUse(kUnknown),
mWalkabilityCoefficientA(MIN_WALKABILITY_VALUE),
mWalkabilityCoefficientB(MIN_WALKABILITY_VALUE),
mWalkabilityCoefficientC(MIN_WALKABILITY_VALUE),
mWalkabilityCoefficientD(MIN_WALKABILITY_VALUE)
{
parseObjectData(pLinksetItem);
parsePathfindingData(pLinksetItem);
}
LLPathfindingLinkset::LLPathfindingLinkset(const LLPathfindingLinkset& pOther)
: mUUID(pOther.mUUID),
mName(pOther.mName),
mDescription(pOther.mDescription),
mLandImpact(pOther.mLandImpact),
mLocation(pOther.mLocation),
mIsLocked(pOther.mIsLocked),
mLinksetUse(pOther.mLinksetUse),
mWalkabilityCoefficientA(pOther.mWalkabilityCoefficientA),
mWalkabilityCoefficientB(pOther.mWalkabilityCoefficientB),
mWalkabilityCoefficientC(pOther.mWalkabilityCoefficientC),
mWalkabilityCoefficientD(pOther.mWalkabilityCoefficientD)
{
}
LLPathfindingLinkset::~LLPathfindingLinkset()
{
}
LLPathfindingLinkset& LLPathfindingLinkset::operator =(const LLPathfindingLinkset& pOther)
{
mUUID = pOther.mUUID;
mName = pOther.mName;
mDescription = pOther.mDescription;
mLandImpact = pOther.mLandImpact;
mLocation = pOther.mLocation;
mIsLocked = pOther.mIsLocked;
mLinksetUse = pOther.mLinksetUse;
mWalkabilityCoefficientA = pOther.mWalkabilityCoefficientA;
mWalkabilityCoefficientB = pOther.mWalkabilityCoefficientB;
mWalkabilityCoefficientC = pOther.mWalkabilityCoefficientC;
mWalkabilityCoefficientD = pOther.mWalkabilityCoefficientD;
return *this;
}
LLSD LLPathfindingLinkset::encodeAlteredFields(ELinksetUse pLinksetUse, S32 pA, S32 pB, S32 pC, S32 pD) const
{
LLSD itemData;
if (!isTerrain() && (pLinksetUse != kUnknown) && (mLinksetUse != pLinksetUse))
{
if (!mIsLocked)
{
itemData[LINKSET_PHANTOM_FIELD] = static_cast<bool>(LLPathfindingLinkset::isPhantom(pLinksetUse));
}
itemData[LINKSET_PERMANENT_FIELD] = static_cast<bool>(LLPathfindingLinkset::isPermanent(pLinksetUse));
itemData[LINKSET_WALKABLE_FIELD] = static_cast<bool>(LLPathfindingLinkset::isWalkable(pLinksetUse));
}
if (mWalkabilityCoefficientA != pA)
{
itemData[LINKSET_WALKABILITY_A_FIELD] = llclamp(pA, MIN_WALKABILITY_VALUE, MAX_WALKABILITY_VALUE);
}
if (mWalkabilityCoefficientB != pB)
{
itemData[LINKSET_WALKABILITY_B_FIELD] = llclamp(pB, MIN_WALKABILITY_VALUE, MAX_WALKABILITY_VALUE);
}
if (mWalkabilityCoefficientC != pC)
{
itemData[LINKSET_WALKABILITY_C_FIELD] = llclamp(pC, MIN_WALKABILITY_VALUE, MAX_WALKABILITY_VALUE);
}
if (mWalkabilityCoefficientD != pD)
{
itemData[LINKSET_WALKABILITY_D_FIELD] = llclamp(pD, MIN_WALKABILITY_VALUE, MAX_WALKABILITY_VALUE);
}
return itemData;
}
void LLPathfindingLinkset::parseObjectData(const LLSD &pLinksetItem)
{
llassert(pLinksetItem.has(LINKSET_NAME_FIELD));
llassert(pLinksetItem.get(LINKSET_NAME_FIELD).isString());
mName = pLinksetItem.get(LINKSET_NAME_FIELD).asString();
llassert(pLinksetItem.has(LINKSET_DESCRIPTION_FIELD));
llassert(pLinksetItem.get(LINKSET_DESCRIPTION_FIELD).isString());
mDescription = pLinksetItem.get(LINKSET_DESCRIPTION_FIELD).asString();
llassert(pLinksetItem.has(LINKSET_LAND_IMPACT_FIELD));
llassert(pLinksetItem.get(LINKSET_LAND_IMPACT_FIELD).isInteger());
llassert(pLinksetItem.get(LINKSET_LAND_IMPACT_FIELD).asInteger() >= 0);
mLandImpact = pLinksetItem.get(LINKSET_LAND_IMPACT_FIELD).asInteger();
llassert(pLinksetItem.has(LINKSET_MODIFIABLE_FIELD));
llassert(pLinksetItem.get(LINKSET_MODIFIABLE_FIELD).isBoolean());
mIsLocked = !pLinksetItem.get(LINKSET_MODIFIABLE_FIELD).asBoolean();
llassert(pLinksetItem.has(LINKSET_POSITION_FIELD));
llassert(pLinksetItem.get(LINKSET_POSITION_FIELD).isArray());
mLocation.setValue(pLinksetItem.get(LINKSET_POSITION_FIELD));
}
void LLPathfindingLinkset::parsePathfindingData(const LLSD &pLinksetItem)
{
bool isPhantom = false;
if (pLinksetItem.has(LINKSET_PHANTOM_FIELD))
{
llassert(pLinksetItem.get(LINKSET_PHANTOM_FIELD).isBoolean());
isPhantom = pLinksetItem.get(LINKSET_PHANTOM_FIELD).asBoolean();
}
llassert(pLinksetItem.has(LINKSET_PERMANENT_FIELD));
llassert(pLinksetItem.get(LINKSET_PERMANENT_FIELD).isBoolean());
bool isPermanent = pLinksetItem.get(LINKSET_PERMANENT_FIELD).asBoolean();
llassert(pLinksetItem.has(LINKSET_WALKABLE_FIELD));
llassert(pLinksetItem.get(LINKSET_WALKABLE_FIELD).isBoolean());
bool isWalkable = pLinksetItem.get(LINKSET_WALKABLE_FIELD).asBoolean();
mLinksetUse = getLinksetUse(isPhantom, isPermanent, isWalkable);
llassert(pLinksetItem.has(LINKSET_WALKABILITY_A_FIELD));
llassert(pLinksetItem.get(LINKSET_WALKABILITY_A_FIELD).isInteger());
mWalkabilityCoefficientA = pLinksetItem.get(LINKSET_WALKABILITY_A_FIELD).asInteger();
llassert(mWalkabilityCoefficientA >= MIN_WALKABILITY_VALUE);
llassert(mWalkabilityCoefficientA <= MAX_WALKABILITY_VALUE);
llassert(pLinksetItem.has(LINKSET_WALKABILITY_B_FIELD));
llassert(pLinksetItem.get(LINKSET_WALKABILITY_B_FIELD).isInteger());
mWalkabilityCoefficientB = pLinksetItem.get(LINKSET_WALKABILITY_B_FIELD).asInteger();
llassert(mWalkabilityCoefficientB >= MIN_WALKABILITY_VALUE);
llassert(mWalkabilityCoefficientB <= MAX_WALKABILITY_VALUE);
llassert(pLinksetItem.has(LINKSET_WALKABILITY_C_FIELD));
llassert(pLinksetItem.get(LINKSET_WALKABILITY_C_FIELD).isInteger());
mWalkabilityCoefficientC = pLinksetItem.get(LINKSET_WALKABILITY_C_FIELD).asInteger();
llassert(mWalkabilityCoefficientC >= MIN_WALKABILITY_VALUE);
llassert(mWalkabilityCoefficientC <= MAX_WALKABILITY_VALUE);
llassert(pLinksetItem.has(LINKSET_WALKABILITY_D_FIELD));
llassert(pLinksetItem.get(LINKSET_WALKABILITY_D_FIELD).isInteger());
mWalkabilityCoefficientD = pLinksetItem.get(LINKSET_WALKABILITY_D_FIELD).asInteger();
llassert(mWalkabilityCoefficientD >= MIN_WALKABILITY_VALUE);
llassert(mWalkabilityCoefficientD <= MAX_WALKABILITY_VALUE);
}
LLPathfindingLinkset::ELinksetUse LLPathfindingLinkset::getLinksetUse(bool pIsPhantom, bool pIsPermanent, bool pIsWalkable)
{
return (pIsPhantom ? (pIsPermanent ? (pIsWalkable ? kMaterialVolume : kExclusionVolume) : kDynamicPhantom) :
(pIsPermanent ? (pIsWalkable ? kWalkable : kStaticObstacle) : kDynamicObstacle));
}
BOOL LLPathfindingLinkset::isPhantom(ELinksetUse pLinksetUse)
{
BOOL retVal;
switch (pLinksetUse)
{
case kWalkable :
case kStaticObstacle :
case kDynamicObstacle :
retVal = false;
break;
case kMaterialVolume :
case kExclusionVolume :
case kDynamicPhantom :
retVal = true;
break;
case kUnknown :
default :
retVal = false;
llassert(0);
break;
}
return retVal;
}
BOOL LLPathfindingLinkset::isPermanent(ELinksetUse pLinksetUse)
{
BOOL retVal;
switch (pLinksetUse)
{
case kWalkable :
case kStaticObstacle :
case kMaterialVolume :
case kExclusionVolume :
retVal = true;
break;
case kDynamicObstacle :
case kDynamicPhantom :
retVal = false;
break;
case kUnknown :
default :
retVal = false;
llassert(0);
break;
}
return retVal;
}
BOOL LLPathfindingLinkset::isWalkable(ELinksetUse pLinksetUse)
{
BOOL retVal;
switch (pLinksetUse)
{
case kWalkable :
case kMaterialVolume :
retVal = true;
break;
case kStaticObstacle :
case kDynamicObstacle :
case kExclusionVolume :
case kDynamicPhantom :
retVal = false;
break;
case kUnknown :
default :
retVal = false;
llassert(0);
break;
}
return retVal;
}
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