llhudeffectlookat.cpp
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- /**
- * @file llhudeffectlookat.cpp
- * @brief LLHUDEffectLookAt class implementation
- *
- * $LicenseInfo:firstyear=2002&license=viewergpl$
- *
- * Copyright (c) 2002-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #include "llviewerprecompiledheaders.h"
- #include "llhudeffectlookat.h"
- #include "llrender.h"
- #include "message.h"
- #include "llagent.h"
- #include "llvoavatar.h"
- #include "lldrawable.h"
- #include "llviewerobjectlist.h"
- #include "llrendersphere.h"
- #include "llselectmgr.h"
- #include "llglheaders.h"
- #include "llxmltree.h"
- BOOL LLHUDEffectLookAt::sDebugLookAt = FALSE;
- // packet layout
- const S32 SOURCE_AVATAR = 0;
- const S32 TARGET_OBJECT = 16;
- const S32 TARGET_POS = 32;
- const S32 LOOKAT_TYPE = 56;
- const S32 PKT_SIZE = 57;
- // throttle
- const F32 MAX_SENDS_PER_SEC = 4.f;
- const F32 MIN_DELTAPOS_FOR_UPDATE = 0.05f;
- const F32 MIN_TARGET_OFFSET_SQUARED = 0.0001f;
- // can't use actual F32_MAX, because we add this to the current frametime
- const F32 MAX_TIMEOUT = F32_MAX / 2.f;
- /**
- * Simple data class holding values for a particular type of attention.
- */
- class LLAttention
- {
- public:
- LLAttention()
- : mTimeout(0.f),
- mPriority(0.f)
- {}
- LLAttention(F32 timeout, F32 priority, const std::string& name, LLColor3 color) :
- mTimeout(timeout), mPriority(priority), mName(name), mColor(color)
- {
- }
- F32 mTimeout, mPriority;
- std::string mName;
- LLColor3 mColor;
- };
- /**
- * Simple data class holding a list of attentions, one for every type.
- */
- class LLAttentionSet
- {
- public:
- LLAttentionSet(const LLAttention attentions[])
- {
- for(int i=0; i<LOOKAT_NUM_TARGETS; i++)
- {
- mAttentions[i] = attentions[i];
- }
- }
- LLAttention mAttentions[LOOKAT_NUM_TARGETS];
- LLAttention& operator[](int idx) { return mAttentions[idx]; }
- };
- // Default attribute set data.
- // Used to initialize the global attribute set objects, one of which will be
- // refered to by the hud object at any given time.
- // Note that the values below are only the default values and that any or all of them
- // can be overwritten with customizing data from the XML file. The actual values below
- // are those that will give exactly the same look-at behavior as before the ability
- // to customize was added. - MG
- static const
- LLAttention
- BOY_ATTS[] = { // default set of masculine attentions
- LLAttention(MAX_TIMEOUT, 0, "None", LLColor3(0.3f, 0.3f, 0.3f)), // LOOKAT_TARGET_NONE
- LLAttention(3.f, 1, "Idle", LLColor3(0.5f, 0.5f, 0.5f)), // LOOKAT_TARGET_IDLE
- LLAttention(4.f, 3, "AutoListen", LLColor3(0.5f, 0.5f, 0.5f)), // LOOKAT_TARGET_AUTO_LISTEN
- LLAttention(2.f, 2, "FreeLook", LLColor3(0.5f, 0.5f, 0.9f)), // LOOKAT_TARGET_FREELOOK
- LLAttention(4.f, 3, "Respond", LLColor3(0.0f, 0.0f, 0.0f)), // LOOKAT_TARGET_RESPOND
- LLAttention(1.f, 4, "Hover", LLColor3(0.5f, 0.9f, 0.5f)), // LOOKAT_TARGET_HOVER
- LLAttention(MAX_TIMEOUT, 0, "Conversation", LLColor3(0.1f, 0.1f, 0.5f)), // LOOKAT_TARGET_CONVERSATION
- LLAttention(MAX_TIMEOUT, 6, "Select", LLColor3(0.9f, 0.5f, 0.5f)), // LOOKAT_TARGET_SELECT
- LLAttention(MAX_TIMEOUT, 6, "Focus", LLColor3(0.9f, 0.5f, 0.9f)), // LOOKAT_TARGET_FOCUS
- LLAttention(MAX_TIMEOUT, 7, "Mouselook", LLColor3(0.9f, 0.9f, 0.5f)), // LOOKAT_TARGET_MOUSELOOK
- LLAttention(0.f, 8, "Clear", LLColor3(1.0f, 1.0f, 1.0f)), // LOOKAT_TARGET_CLEAR
- },
- GIRL_ATTS[] = { // default set of feminine attentions
- LLAttention(MAX_TIMEOUT, 0, "None", LLColor3(0.3f, 0.3f, 0.3f)), // LOOKAT_TARGET_NONE
- LLAttention(3.f, 1, "Idle", LLColor3(0.5f, 0.5f, 0.5f)), // LOOKAT_TARGET_IDLE
- LLAttention(4.f, 3, "AutoListen", LLColor3(0.5f, 0.5f, 0.5f)), // LOOKAT_TARGET_AUTO_LISTEN
- LLAttention(2.f, 2, "FreeLook", LLColor3(0.5f, 0.5f, 0.9f)), // LOOKAT_TARGET_FREELOOK
- LLAttention(4.f, 3, "Respond", LLColor3(0.0f, 0.0f, 0.0f)), // LOOKAT_TARGET_RESPOND
- LLAttention(1.f, 4, "Hover", LLColor3(0.5f, 0.9f, 0.5f)), // LOOKAT_TARGET_HOVER
- LLAttention(MAX_TIMEOUT, 0, "Conversation", LLColor3(0.1f, 0.1f, 0.5f)), // LOOKAT_TARGET_CONVERSATION
- LLAttention(MAX_TIMEOUT, 6, "Select", LLColor3(0.9f, 0.5f, 0.5f)), // LOOKAT_TARGET_SELECT
- LLAttention(MAX_TIMEOUT, 6, "Focus", LLColor3(0.9f, 0.5f, 0.9f)), // LOOKAT_TARGET_FOCUS
- LLAttention(MAX_TIMEOUT, 7, "Mouselook", LLColor3(0.9f, 0.9f, 0.5f)), // LOOKAT_TARGET_MOUSELOOK
- LLAttention(0.f, 8, "Clear", LLColor3(1.0f, 1.0f, 1.0f)), // LOOKAT_TARGET_CLEAR
- };
- static LLAttentionSet
- gBoyAttentions(BOY_ATTS),
- gGirlAttentions(GIRL_ATTS);
- static BOOL loadGender(LLXmlTreeNode* gender)
- {
- if( !gender)
- {
- return FALSE;
- }
- std::string str;
- gender->getAttributeString("name", str);
- LLAttentionSet& attentions = (str.compare("Masculine") == 0) ? gBoyAttentions : gGirlAttentions;
- for (LLXmlTreeNode* attention_node = gender->getChildByName( "param" );
- attention_node;
- attention_node = gender->getNextNamedChild())
- {
- attention_node->getAttributeString("attention", str);
- LLAttention* attention;
- if (str == "idle") attention = &attentions[LOOKAT_TARGET_IDLE];
- else if(str == "auto_listen") attention = &attentions[LOOKAT_TARGET_AUTO_LISTEN];
- else if(str == "freelook") attention = &attentions[LOOKAT_TARGET_FREELOOK];
- else if(str == "respond") attention = &attentions[LOOKAT_TARGET_RESPOND];
- else if(str == "hover") attention = &attentions[LOOKAT_TARGET_HOVER];
- else if(str == "conversation") attention = &attentions[LOOKAT_TARGET_CONVERSATION];
- else if(str == "select") attention = &attentions[LOOKAT_TARGET_SELECT];
- else if(str == "focus") attention = &attentions[LOOKAT_TARGET_FOCUS];
- else if(str == "mouselook") attention = &attentions[LOOKAT_TARGET_MOUSELOOK];
- else return FALSE;
- F32 priority, timeout;
- attention_node->getAttributeF32("priority", priority);
- attention_node->getAttributeF32("timeout", timeout);
- if(timeout < 0) timeout = MAX_TIMEOUT;
- attention->mPriority = priority;
- attention->mTimeout = timeout;
- }
- return TRUE;
- }
- static BOOL loadAttentions()
- {
- static BOOL first_time = TRUE;
- if( ! first_time)
- {
- return TRUE; // maybe not ideal but otherwise it can continue to fail forever.
- }
- first_time = FALSE;
- std::string filename;
- filename = gDirUtilp->getExpandedFilename(LL_PATH_CHARACTER,"attentions.xml");
- LLXmlTree xml_tree;
- BOOL success = xml_tree.parseFile( filename, FALSE );
- if( !success )
- {
- return FALSE;
- }
- LLXmlTreeNode* root = xml_tree.getRoot();
- if( !root )
- {
- return FALSE;
- }
- //-------------------------------------------------------------------------
- // <linden_attentions version="1.0"> (root)
- //-------------------------------------------------------------------------
- if( !root->hasName( "linden_attentions" ) )
- {
- llwarns << "Invalid linden_attentions file header: " << filename << llendl;
- return FALSE;
- }
- std::string version;
- static LLStdStringHandle version_string = LLXmlTree::addAttributeString("version");
- if( !root->getFastAttributeString( version_string, version ) || (version != "1.0") )
- {
- llwarns << "Invalid linden_attentions file version: " << version << llendl;
- return FALSE;
- }
- //-------------------------------------------------------------------------
- // <gender>
- //-------------------------------------------------------------------------
- for (LLXmlTreeNode* child = root->getChildByName( "gender" );
- child;
- child = root->getNextNamedChild())
- {
- if( !loadGender( child ) )
- {
- return FALSE;
- }
- }
- return TRUE;
- }
- //-----------------------------------------------------------------------------
- // LLHUDEffectLookAt()
- //-----------------------------------------------------------------------------
- LLHUDEffectLookAt::LLHUDEffectLookAt(const U8 type) :
- LLHUDEffect(type),
- mKillTime(0.f),
- mLastSendTime(0.f)
- {
- clearLookAtTarget();
- // parse the default sets
- loadAttentions();
- // initialize current attention set. switches when avatar sex changes.
- mAttentions = &gGirlAttentions;
- }
- //-----------------------------------------------------------------------------
- // ~LLHUDEffectLookAt()
- //-----------------------------------------------------------------------------
- LLHUDEffectLookAt::~LLHUDEffectLookAt()
- {
- }
- //-----------------------------------------------------------------------------
- // packData()
- //-----------------------------------------------------------------------------
- void LLHUDEffectLookAt::packData(LLMessageSystem *mesgsys)
- {
- // Pack the default data
- LLHUDEffect::packData(mesgsys);
- // Pack the type-specific data. Uses a fun packed binary format. Whee!
- U8 packed_data[PKT_SIZE];
- memset(packed_data, 0, PKT_SIZE);
- if (mSourceObject)
- {
- htonmemcpy(&(packed_data[SOURCE_AVATAR]), mSourceObject->mID.mData, MVT_LLUUID, 16);
- }
- else
- {
- htonmemcpy(&(packed_data[SOURCE_AVATAR]), LLUUID::null.mData, MVT_LLUUID, 16);
- }
- // pack both target object and position
- // position interpreted as offset if target object is non-null
- if (mTargetObject)
- {
- htonmemcpy(&(packed_data[TARGET_OBJECT]), mTargetObject->mID.mData, MVT_LLUUID, 16);
- }
- else
- {
- htonmemcpy(&(packed_data[TARGET_OBJECT]), LLUUID::null.mData, MVT_LLUUID, 16);
- }
- htonmemcpy(&(packed_data[TARGET_POS]), mTargetOffsetGlobal.mdV, MVT_LLVector3d, 24);
- U8 lookAtTypePacked = (U8)mTargetType;
- htonmemcpy(&(packed_data[LOOKAT_TYPE]), &lookAtTypePacked, MVT_U8, 1);
- mesgsys->addBinaryDataFast(_PREHASH_TypeData, packed_data, PKT_SIZE);
- mLastSendTime = mTimer.getElapsedTimeF32();
- }
- //-----------------------------------------------------------------------------
- // unpackData()
- //-----------------------------------------------------------------------------
- void LLHUDEffectLookAt::unpackData(LLMessageSystem *mesgsys, S32 blocknum)
- {
- LLVector3d new_target;
- U8 packed_data[PKT_SIZE];
- LLUUID dataId;
- mesgsys->getUUIDFast(_PREHASH_Effect, _PREHASH_ID, dataId, blocknum);
- if (!gAgent.mLookAt.isNull() && dataId == gAgent.mLookAt->getID())
- {
- return;
- }
- LLHUDEffect::unpackData(mesgsys, blocknum);
- LLUUID source_id;
- LLUUID target_id;
- S32 size = mesgsys->getSizeFast(_PREHASH_Effect, blocknum, _PREHASH_TypeData);
- if (size != PKT_SIZE)
- {
- llwarns << "LookAt effect with bad size " << size << llendl;
- return;
- }
- mesgsys->getBinaryDataFast(_PREHASH_Effect, _PREHASH_TypeData, packed_data, PKT_SIZE, blocknum);
- htonmemcpy(source_id.mData, &(packed_data[SOURCE_AVATAR]), MVT_LLUUID, 16);
- LLViewerObject *objp = gObjectList.findObject(source_id);
- if (objp && objp->isAvatar())
- {
- setSourceObject(objp);
- }
- else
- {
- //llwarns << "Could not find source avatar for lookat effect" << llendl;
- return;
- }
- htonmemcpy(target_id.mData, &(packed_data[TARGET_OBJECT]), MVT_LLUUID, 16);
- objp = gObjectList.findObject(target_id);
- htonmemcpy(new_target.mdV, &(packed_data[TARGET_POS]), MVT_LLVector3d, 24);
- if (objp)
- {
- setTargetObjectAndOffset(objp, new_target);
- }
- else if (target_id.isNull())
- {
- setTargetPosGlobal(new_target);
- }
- else
- {
- //llwarns << "Could not find target object for lookat effect" << llendl;
- }
- U8 lookAtTypeUnpacked = 0;
- htonmemcpy(&lookAtTypeUnpacked, &(packed_data[LOOKAT_TYPE]), MVT_U8, 1);
- mTargetType = (ELookAtType)lookAtTypeUnpacked;
- if (mTargetType == LOOKAT_TARGET_NONE)
- {
- clearLookAtTarget();
- }
- }
- //-----------------------------------------------------------------------------
- // setTargetObjectAndOffset()
- //-----------------------------------------------------------------------------
- void LLHUDEffectLookAt::setTargetObjectAndOffset(LLViewerObject *objp, LLVector3d offset)
- {
- mTargetObject = objp;
- mTargetOffsetGlobal = offset;
- }
- //-----------------------------------------------------------------------------
- // setTargetPosGlobal()
- //-----------------------------------------------------------------------------
- void LLHUDEffectLookAt::setTargetPosGlobal(const LLVector3d &target_pos_global)
- {
- mTargetObject = NULL;
- mTargetOffsetGlobal = target_pos_global;
- }
- //-----------------------------------------------------------------------------
- // setLookAt()
- // called by agent logic to set look at behavior locally, and propagate to sim
- //-----------------------------------------------------------------------------
- BOOL LLHUDEffectLookAt::setLookAt(ELookAtType target_type, LLViewerObject *object, LLVector3 position)
- {
- if (!mSourceObject)
- {
- return FALSE;
- }
- if (target_type >= LOOKAT_NUM_TARGETS)
- {
- llwarns << "Bad target_type " << (int)target_type << " - ignoring." << llendl;
- return FALSE;
- }
- // must be same or higher priority than existing effect
- if ((*mAttentions)[target_type].mPriority < (*mAttentions)[mTargetType].mPriority)
- {
- return FALSE;
- }
- F32 current_time = mTimer.getElapsedTimeF32();
- // type of lookat behavior or target object has changed
- BOOL lookAtChanged = (target_type != mTargetType) || (object != mTargetObject);
- // lookat position has moved a certain amount and we haven't just sent an update
- lookAtChanged = lookAtChanged || ((dist_vec(position, mLastSentOffsetGlobal) > MIN_DELTAPOS_FOR_UPDATE) &&
- ((current_time - mLastSendTime) > (1.f / MAX_SENDS_PER_SEC)));
- if (lookAtChanged)
- {
- mLastSentOffsetGlobal = position;
- F32 timeout = (*mAttentions)[target_type].mTimeout;
- setDuration(timeout);
- setNeedsSendToSim(TRUE);
- }
- if (target_type == LOOKAT_TARGET_CLEAR)
- {
- clearLookAtTarget();
- }
- else
- {
- mTargetType = target_type;
- mTargetObject = object;
- if (object)
- {
- mTargetOffsetGlobal.setVec(position);
- }
- else
- {
- mTargetOffsetGlobal = gAgent.getPosGlobalFromAgent(position);
- }
- mKillTime = mTimer.getElapsedTimeF32() + mDuration;
- update();
- }
- return TRUE;
- }
- //-----------------------------------------------------------------------------
- // clearLookAtTarget()
- //-----------------------------------------------------------------------------
- void LLHUDEffectLookAt::clearLookAtTarget()
- {
- mTargetObject = NULL;
- mTargetOffsetGlobal.clearVec();
- mTargetType = LOOKAT_TARGET_NONE;
- if (mSourceObject.notNull())
- {
- ((LLVOAvatar*)(LLViewerObject*)mSourceObject)->stopMotion(ANIM_AGENT_HEAD_ROT);
- }
- }
- //-----------------------------------------------------------------------------
- // markDead()
- //-----------------------------------------------------------------------------
- void LLHUDEffectLookAt::markDead()
- {
- if (mSourceObject.notNull())
- {
- ((LLVOAvatar*)(LLViewerObject*)mSourceObject)->removeAnimationData("LookAtPoint");
- }
- mSourceObject = NULL;
- clearLookAtTarget();
- LLHUDEffect::markDead();
- }
- void LLHUDEffectLookAt::setSourceObject(LLViewerObject* objectp)
- {
- // restrict source objects to avatars
- if (objectp && objectp->isAvatar())
- {
- LLHUDEffect::setSourceObject(objectp);
- }
- }
- //-----------------------------------------------------------------------------
- // render()
- //-----------------------------------------------------------------------------
- void LLHUDEffectLookAt::render()
- {
- if (sDebugLookAt && mSourceObject.notNull())
- {
- gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
- LLVector3 target = mTargetPos + ((LLVOAvatar*)(LLViewerObject*)mSourceObject)->mHeadp->getWorldPosition();
- glMatrixMode(GL_MODELVIEW);
- gGL.pushMatrix();
- gGL.translatef(target.mV[VX], target.mV[VY], target.mV[VZ]);
- glScalef(0.3f, 0.3f, 0.3f);
- gGL.begin(LLRender::LINES);
- {
- LLColor3 color = (*mAttentions)[mTargetType].mColor;
- gGL.color3f(color.mV[VRED], color.mV[VGREEN], color.mV[VBLUE]);
- gGL.vertex3f(-1.f, 0.f, 0.f);
- gGL.vertex3f(1.f, 0.f, 0.f);
- gGL.vertex3f(0.f, -1.f, 0.f);
- gGL.vertex3f(0.f, 1.f, 0.f);
- gGL.vertex3f(0.f, 0.f, -1.f);
- gGL.vertex3f(0.f, 0.f, 1.f);
- } gGL.end();
- gGL.popMatrix();
- }
- }
- //-----------------------------------------------------------------------------
- // update()
- //-----------------------------------------------------------------------------
- void LLHUDEffectLookAt::update()
- {
- // If the target object is dead, set the target object to NULL
- if (!mTargetObject.isNull() && mTargetObject->isDead())
- {
- clearLookAtTarget();
- }
- // if source avatar is null or dead, mark self as dead and return
- if (mSourceObject.isNull() || mSourceObject->isDead())
- {
- markDead();
- return;
- }
- // make sure the proper set of avatar attention are currently being used.
- LLVOAvatar* source_avatar = (LLVOAvatar*)(LLViewerObject*)mSourceObject;
- // for now the first cut will just switch on sex. future development could adjust
- // timeouts according to avatar age and/or other features.
- mAttentions = (source_avatar->getSex() == SEX_MALE) ? &gBoyAttentions : &gGirlAttentions;
- //printf("updated to %sn", (source_avatar->getSex() == SEX_MALE) ? "male" : "female");
- F32 time = mTimer.getElapsedTimeF32();
- // clear out the effect if time is up
- if (mKillTime != 0.f && time > mKillTime)
- {
- if (mTargetType != LOOKAT_TARGET_NONE)
- {
- clearLookAtTarget();
- // look at timed out (only happens on own avatar), so tell everyone
- setNeedsSendToSim(TRUE);
- }
- }
- if (mTargetType != LOOKAT_TARGET_NONE)
- {
- if (calcTargetPosition())
- {
- LLMotion* head_motion = ((LLVOAvatar*)(LLViewerObject*)mSourceObject)->findMotion(ANIM_AGENT_HEAD_ROT);
- if (!head_motion || head_motion->isStopped())
- {
- ((LLVOAvatar*)(LLViewerObject*)mSourceObject)->startMotion(ANIM_AGENT_HEAD_ROT);
- }
- }
- }
- if (sDebugLookAt)
- {
- ((LLVOAvatar*)(LLViewerObject*)mSourceObject)->addDebugText((*mAttentions)[mTargetType].mName);
- }
- }
- /**
- * Initializes the mTargetPos member from the current mSourceObjec and mTargetObject
- * (and possibly mTargetOffsetGlobal).
- * When mTargetObject is another avatar, it sets mTargetPos to be their eyes.
- *
- * Has the side-effect of also calling setAnimationData("LookAtPoint") with the new
- * mTargetPos on the source object which is assumed to be an avatar.
- *
- * Returns whether we successfully calculated a finite target position.
- */
- bool LLHUDEffectLookAt::calcTargetPosition()
- {
- if (gNoRender)
- {
- return false;
- }
- LLViewerObject *target_obj = (LLViewerObject *)mTargetObject;
- LLVector3 local_offset;
- if (target_obj)
- {
- local_offset.setVec(mTargetOffsetGlobal);
- }
- else
- {
- local_offset = gAgent.getPosAgentFromGlobal(mTargetOffsetGlobal);
- }
- LLVOAvatar* source_avatar = (LLVOAvatar*)(LLViewerObject*)mSourceObject;
- if (!source_avatar->isBuilt())
- return false;
- if (target_obj && target_obj->mDrawable.notNull())
- {
- LLQuaternion target_rot;
- if (target_obj->isAvatar())
- {
- LLVOAvatar *target_av = (LLVOAvatar *)target_obj;
- BOOL looking_at_self = source_avatar->isSelf() && target_av->isSelf();
- // if selecting self, stare forward
- if (looking_at_self && mTargetOffsetGlobal.magVecSquared() < MIN_TARGET_OFFSET_SQUARED)
- {
- //sets the lookat point in front of the avatar
- mTargetOffsetGlobal.setVec(5.0, 0.0, 0.0);
- local_offset.setVec(mTargetOffsetGlobal);
- }
- // look the other avatar in the eye. note: what happens if target is self? -MG
- mTargetPos = target_av->mHeadp->getWorldPosition();
- if (mTargetType == LOOKAT_TARGET_MOUSELOOK || mTargetType == LOOKAT_TARGET_FREELOOK)
- {
- // mouselook and freelook target offsets are absolute
- target_rot = LLQuaternion::DEFAULT;
- }
- else if (looking_at_self && gAgent.cameraCustomizeAvatar())
- {
- // *NOTE: We have to do this because animation
- // overrides do not set lookat behavior.
- // *TODO: animation overrides for lookat behavior.
- target_rot = target_av->mPelvisp->getWorldRotation();
- }
- else
- {
- target_rot = target_av->mRoot.getWorldRotation();
- }
- }
- else // target obj is not an avatar
- {
- if (target_obj->mDrawable->getGeneration() == -1)
- {
- mTargetPos = target_obj->getPositionAgent();
- target_rot = target_obj->getWorldRotation();
- }
- else
- {
- mTargetPos = target_obj->getRenderPosition();
- target_rot = target_obj->getRenderRotation();
- }
- }
- mTargetPos += (local_offset * target_rot);
- }
- else // no target obj or it's not drawable
- {
- mTargetPos = local_offset;
- }
- mTargetPos -= source_avatar->mHeadp->getWorldPosition();
- if (!mTargetPos.isFinite())
- return false;
- source_avatar->setAnimationData("LookAtPoint", (void *)&mTargetPos);
- return true;
- }