void LLAgentListener::requestTouch(LLSD const & event_data) const
{
LLViewerObject *object = NULL;
if (event_data.has("obj_uuid"))
{
object = gObjectList.findObject(event_data["obj_uuid"]);
}
else if (event_data.has("position"))
{
LLVector3 target_position = ll_vector3_from_sd(event_data["position"]);
object = findObjectClosestTo(target_position);
}
S32 face = 0;
if (event_data.has("face"))
{
face = event_data["face"].asInteger();
}
if (object && object->getPCode() == LL_PCODE_VOLUME)
{
// Fake enough pick info to get it to (hopefully) work
LLPickInfo pick;
pick.mObjectFace = face;
/*
These values are sent to the simulator, but face seems to be easiest to use
pick.mUVCoords "UVCoord"
pick.mSTCoords "STCoord"
pick.mObjectFace "FaceIndex"
pick.mIntersection "Position"
pick.mNormal "Normal"
pick.mBinormal "Binormal"
*/
// A touch is a sketchy message sequence ... send a grab, immediately
// followed by un-grabbing, crossing fingers and hoping packets arrive in
// the correct order
send_ObjectGrab_message(object, pick, LLVector3::zero);
send_ObjectDeGrab_message(object, pick);
}
else
{
llwarns << "LLAgent requestTouch could not find the touch target "
<< event_data["obj_uuid"].asUUID() << llendl;
}
}
void LLToolGrab::startGrab()
{
// Compute grab_offset in the OBJECT's root's coordinate frame
// (sometimes root == object)
LLViewerObject* objectp = mGrabPick.getObject();
if (!objectp)
{
return;
}
LLViewerObject *root = (LLViewerObject *)objectp->getRoot();
// drag from center
LLVector3d grab_start_global = root->getPositionGlobal();
// Where the grab starts, relative to the center of the root object of the set.
// JC - This code looks wonky, but I believe it does the right thing.
// Otherwise, when you grab a linked object set, it "pops" on the start
// of the drag.
LLVector3d grab_offsetd = root->getPositionGlobal() - objectp->getPositionGlobal();
LLVector3 grab_offset;
grab_offset.setVec(grab_offsetd);
LLQuaternion rotation = root->getRotation();
rotation.conjQuat();
grab_offset = grab_offset * rotation;
// This planar drag starts at the grab point
mDragStartPointGlobal = grab_start_global;
mDragStartFromCamera = grab_start_global - gAgentCamera.getCameraPositionGlobal();
send_ObjectGrab_message(objectp, mGrabPick, grab_offset);
mGrabOffsetFromCenterInitial = grab_offset;
mGrabHiddenOffsetFromCamera = mDragStartFromCamera;
mGrabTimer.reset();
mLastUVCoords = mGrabPick.mUVCoords;
mLastSTCoords = mGrabPick.mSTCoords;
mLastFace = mGrabPick.mObjectFace;
mLastIntersection = mGrabPick.mIntersection;
mLastNormal = mGrabPick.mNormal;
mLastBinormal = mGrabPick.mBinormal;
mLastGrabPos = LLVector3(-1.f, -1.f, -1.f);
}