lltracker.cpp
上传用户:king477883
上传日期:2021-03-01
资源大小:9553k
文件大小:22k
- /**
- * @file lltracker.cpp
- * @brief Container for objects user is tracking.
- *
- * $LicenseInfo:firstyear=2003&license=viewergpl$
- *
- * Copyright (c) 2003-2010, 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"
- // library includes
- #include "llcoord.h"
- #include "lldarray.h"
- #include "llfontgl.h"
- #include "llgl.h"
- #include "llrender.h"
- #include "llinventory.h"
- #include "llpointer.h"
- #include "llstring.h"
- #include "lluuid.h"
- #include "v3math.h"
- #include "v3dmath.h"
- #include "v4color.h"
- // viewer includes
- #include "llappviewer.h"
- #include "lltracker.h"
- #include "llagent.h"
- #include "llcallingcard.h"
- #include "llfloaterworldmap.h"
- #include "llhudtext.h"
- #include "llhudview.h"
- #include "llinventorymodel.h"
- #include "llinventoryobserver.h"
- #include "lllandmarklist.h"
- #include "llsky.h"
- #include "llui.h"
- #include "llviewercamera.h"
- #include "llviewerinventory.h"
- #include "llworld.h"
- #include "llworldmapview.h"
- #include "llviewercontrol.h"
- const F32 DESTINATION_REACHED_RADIUS = 3.0f;
- const F32 DESTINATION_VISITED_RADIUS = 6.0f;
- // this last one is useful for when the landmark is
- // very close to agent when tracking is turned on
- const F32 DESTINATION_UNVISITED_RADIUS = 12.0f;
- const S32 ARROW_OFF_RADIUS_SQRD = 100;
- const S32 HUD_ARROW_SIZE = 32;
- // static
- LLTracker *LLTracker::sTrackerp = NULL;
- BOOL LLTracker::sCheesyBeacon = FALSE;
- LLTracker::LLTracker()
- : mTrackingStatus(TRACKING_NOTHING),
- mTrackingLocationType(LOCATION_NOTHING),
- mHUDArrowCenterX(0),
- mHUDArrowCenterY(0),
- mToolTip( "" ),
- mTrackedLandmarkName(""),
- mHasReachedLandmark(FALSE),
- mHasLandmarkPosition(FALSE),
- mLandmarkHasBeenVisited(FALSE),
- mTrackedLocationName( "" ),
- mIsTrackingLocation(FALSE),
- mHasReachedLocation(FALSE)
- { }
- LLTracker::~LLTracker()
- {
- purgeBeaconText();
- }
- // static
- void LLTracker::stopTracking(void* userdata)
- {
- BOOL clear_ui = ((BOOL)(intptr_t)userdata);
- instance()->stopTrackingAll(clear_ui);
- }
- // static virtual
- void LLTracker::drawHUDArrow()
- {
- static LLUIColor map_track_color = LLUIColorTable::instance().getColor("MapTrackColor", LLColor4::white);
-
- /* tracking autopilot destination has been disabled
- -- 2004.01.09, Leviathan
- // Draw dot for autopilot target
- if (gAgent.getAutoPilot())
- {
- instance()->drawMarker( gAgent.getAutoPilotTargetGlobal(), map_track_color );
- return;
- }
- */
- switch (getTrackingStatus())
- {
- case TRACKING_AVATAR:
- // Tracked avatar
- if(LLAvatarTracker::instance().haveTrackingInfo())
- {
- instance()->drawMarker( LLAvatarTracker::instance().getGlobalPos(), map_track_color );
- }
- break;
- case TRACKING_LANDMARK:
- instance()->drawMarker( getTrackedPositionGlobal(), map_track_color );
- break;
- case TRACKING_LOCATION:
- // HACK -- try to keep the location just above the terrain
- #if 0
- // UNHACKED by CRO - keep location where the location is
- instance()->mTrackedPositionGlobal.mdV[VZ] =
- 0.9f * instance()->mTrackedPositionGlobal.mdV[VZ]
- + 0.1f * (LLWorld::getInstance()->resolveLandHeightGlobal(getTrackedPositionGlobal()) + 1.5f);
- #endif
- instance()->mTrackedPositionGlobal.mdV[VZ] = llclamp((F32)instance()->mTrackedPositionGlobal.mdV[VZ], LLWorld::getInstance()->resolveLandHeightGlobal(getTrackedPositionGlobal()) + 1.5f, (F32)instance()->getTrackedPositionGlobal().mdV[VZ]);
- instance()->drawMarker( getTrackedPositionGlobal(), map_track_color );
- break;
- default:
- break;
- }
- }
- // static
- void LLTracker::render3D()
- {
- if (!gFloaterWorldMap)
- {
- return;
- }
-
- static LLUIColor map_track_color = LLUIColorTable::instance().getColor("MapTrackColor", LLColor4::white);
-
- // Arbitary location beacon
- if( instance()->mIsTrackingLocation )
- {
- if (!instance()->mBeaconText)
- {
- instance()->mBeaconText = (LLHUDText *)LLHUDObject::addHUDObject(LLHUDObject::LL_HUD_TEXT);
- instance()->mBeaconText->setDoFade(FALSE);
- }
- LLVector3d pos_global = instance()->mTrackedPositionGlobal;
- // (z-attenuation < 1) means compute "shorter" distance in z-axis,
- // so cancel tracking even if avatar is a little above or below.
- F32 dist = gFloaterWorldMap->getDistanceToDestination(pos_global, 0.5f);
- if (dist < DESTINATION_REACHED_RADIUS)
- {
- instance()->stopTrackingLocation();
- }
- else
- {
- renderBeacon( instance()->mTrackedPositionGlobal, map_track_color,
- instance()->mBeaconText, instance()->mTrackedLocationName );
- }
- }
- // Landmark beacon
- else if( !instance()->mTrackedLandmarkAssetID.isNull() )
- {
- if (!instance()->mBeaconText)
- {
- instance()->mBeaconText = (LLHUDText *)LLHUDObject::addHUDObject(LLHUDObject::LL_HUD_TEXT);
- instance()->mBeaconText->setDoFade(FALSE);
- }
- if (instance()->mHasLandmarkPosition)
- {
- F32 dist = gFloaterWorldMap->getDistanceToDestination(instance()->mTrackedPositionGlobal, 1.0f);
- if ( !instance()->mLandmarkHasBeenVisited
- && dist < DESTINATION_VISITED_RADIUS )
- {
- // its close enough ==> flag as visited
- instance()->setLandmarkVisited();
- }
- if ( !instance()->mHasReachedLandmark
- && dist < DESTINATION_REACHED_RADIUS )
- {
- // its VERY CLOSE ==> automatically stop tracking
- instance()->stopTrackingLandmark();
- }
- else
- {
- if ( instance()->mHasReachedLandmark
- && dist > DESTINATION_UNVISITED_RADIUS )
- {
- // this is so that landmark beacons don't immediately
- // disappear when they're created only a few meters
- // away, yet disappear when the agent wanders away
- // and back again
- instance()->mHasReachedLandmark = FALSE;
- }
- renderBeacon( instance()->mTrackedPositionGlobal, map_track_color,
- instance()->mBeaconText, instance()->mTrackedLandmarkName );
- }
- }
- else
- {
- // probably just finished downloading the asset
- instance()->cacheLandmarkPosition();
- }
- }
- else
- {
- // Avatar beacon
- LLAvatarTracker& av_tracker = LLAvatarTracker::instance();
- if(av_tracker.haveTrackingInfo())
- {
- if (!instance()->mBeaconText)
- {
- instance()->mBeaconText = (LLHUDText *)LLHUDObject::addHUDObject(LLHUDObject::LL_HUD_TEXT);
- instance()->mBeaconText->setDoFade(FALSE);
- }
-
- F32 dist = gFloaterWorldMap->getDistanceToDestination(instance()->mTrackedPositionGlobal, 0.0f);
- if (dist < DESTINATION_REACHED_RADIUS)
- {
- instance()->stopTrackingAvatar();
- }
- else
- {
- renderBeacon( av_tracker.getGlobalPos(), map_track_color,
- instance()->mBeaconText, av_tracker.getName() );
- }
- }
- else
- {
- BOOL stop_tracking = FALSE;
- const LLUUID& avatar_id = av_tracker.getAvatarID();
- if(avatar_id.isNull())
- {
- stop_tracking = TRUE;
- }
- else
- {
- const LLRelationship* buddy = av_tracker.getBuddyInfo(avatar_id);
- if(buddy && !buddy->isOnline() && !gAgent.isGodlike())
- {
- stop_tracking = TRUE;
- }
- if(!buddy && !gAgent.isGodlike())
- {
- stop_tracking = TRUE;
- }
- }
- if(stop_tracking)
- {
- instance()->stopTrackingAvatar();
- }
- }
- }
- }
- // static
- void LLTracker::trackAvatar( const LLUUID& avatar_id, const std::string& name )
- {
- instance()->stopTrackingLandmark();
- instance()->stopTrackingLocation();
-
- LLAvatarTracker::instance().track( avatar_id, name );
- instance()->mTrackingStatus = TRACKING_AVATAR;
- instance()->mLabel = name;
- instance()->mToolTip = "";
- }
- // static
- void LLTracker::trackLandmark( const LLUUID& asset_id, const LLUUID& item_id, const std::string& name)
- {
- instance()->stopTrackingAvatar();
- instance()->stopTrackingLocation();
-
- instance()->mTrackedLandmarkAssetID = asset_id;
- instance()->mTrackedLandmarkItemID = item_id;
- instance()->mTrackedLandmarkName = name;
- instance()->cacheLandmarkPosition();
- instance()->mTrackingStatus = TRACKING_LANDMARK;
- instance()->mLabel = name;
- instance()->mToolTip = "";
- }
- // static
- void LLTracker::trackLocation(const LLVector3d& pos_global, const std::string& full_name, const std::string& tooltip, ETrackingLocationType location_type)
- {
- instance()->stopTrackingAvatar();
- instance()->stopTrackingLandmark();
- instance()->mTrackedPositionGlobal = pos_global;
- instance()->mTrackedLocationName = full_name;
- instance()->mIsTrackingLocation = TRUE;
- instance()->mTrackingStatus = TRACKING_LOCATION;
- instance()->mTrackingLocationType = location_type;
- instance()->mLabel = full_name;
- instance()->mToolTip = tooltip;
- }
- // static
- BOOL LLTracker::handleMouseDown(S32 x, S32 y)
- {
- BOOL eat_mouse_click = FALSE;
- // fortunately, we can always compute the tracking arrow center
- S32 dist_sqrd = (x - instance()->mHUDArrowCenterX) * (x - instance()->mHUDArrowCenterX) +
- (y - instance()->mHUDArrowCenterY) * (y - instance()->mHUDArrowCenterY);
- if (dist_sqrd < ARROW_OFF_RADIUS_SQRD)
- {
- /* tracking autopilot destination has been disabled
- -- 2004.01.09, Leviathan
- // turn off tracking
- if (gAgent.getAutoPilot())
- {
- gAgent.stopAutoPilot(TRUE); // TRUE because cancelled by user
- eat_mouse_click = TRUE;
- }
- */
- if (getTrackingStatus())
- {
- instance()->stopTrackingAll();
- eat_mouse_click = TRUE;
- }
- }
- return eat_mouse_click;
- }
- // static
- LLVector3d LLTracker::getTrackedPositionGlobal()
- {
- LLVector3d pos_global;
- switch (getTrackingStatus())
- {
- case TRACKING_AVATAR:
- {
- LLAvatarTracker& av_tracker = LLAvatarTracker::instance();
- if (av_tracker.haveTrackingInfo())
- {
- pos_global = av_tracker.getGlobalPos(); }
- break;
- }
- case TRACKING_LANDMARK:
- if( instance()->mHasLandmarkPosition )
- {
- pos_global = instance()->mTrackedPositionGlobal;
- }
- break;
- case TRACKING_LOCATION:
- pos_global = instance()->mTrackedPositionGlobal;
- break;
- default:
- break;
- }
- return pos_global;
- }
- // static
- BOOL LLTracker::hasLandmarkPosition()
- {
- if (!instance()->mHasLandmarkPosition)
- {
- // maybe we just received the landmark position info
- instance()->cacheLandmarkPosition();
- }
- return instance()->mHasLandmarkPosition;
- }
- // static
- const std::string& LLTracker::getTrackedLocationName()
- {
- return instance()->mTrackedLocationName;
- }
- F32 pulse_func(F32 t, F32 z)
- {
- if (!LLTracker::sCheesyBeacon)
- {
- return 0.f;
- }
-
- t *= F_PI;
- z -= t*64.f - 256.f;
-
- F32 a = cosf(z*F_PI/512.f)*10.0f;
- a = llmax(a, 9.9f);
- a -= 9.9f;
- a *= 10.f;
- return a;
- }
- void draw_shockwave(F32 center_z, F32 t, S32 steps, LLColor4 color)
- {
- if (!LLTracker::sCheesyBeacon)
- {
- return;
- }
-
- t *= 0.6284f/F_PI;
-
- t -= (F32) (S32) t;
- t = llmax(t, 0.5f);
- t -= 0.5f;
- t *= 2.0f;
-
- F32 radius = t*16536.f;
-
- // Inexact, but reasonably fast.
- F32 delta = F_TWO_PI / steps;
- F32 sin_delta = sin( delta );
- F32 cos_delta = cos( delta );
- F32 x = radius;
- F32 y = 0.f;
- LLColor4 ccol = LLColor4(1,1,1,(1.f-t)*0.25f);
- gGL.begin(LLRender::TRIANGLE_FAN);
- gGL.color4fv(ccol.mV);
- gGL.vertex3f(0.f, 0.f, center_z);
- // make sure circle is complete
- steps += 1;
-
- color.mV[3] = (1.f-t*t);
-
- gGL.color4fv(color.mV);
- while( steps-- )
- {
- // Successive rotations
- gGL.vertex3f( x, y, center_z );
- F32 x_new = x * cos_delta - y * sin_delta;
- y = x * sin_delta + y * cos_delta;
- x = x_new;
- }
- gGL.end();
- }
- // static
- void LLTracker::renderBeacon(LLVector3d pos_global,
- const LLColor4& color,
- LLHUDText* hud_textp,
- const std::string& label )
- {
- sCheesyBeacon = gSavedSettings.getBOOL("CheesyBeacon");
- LLVector3d to_vec = pos_global - gAgent.getCameraPositionGlobal();
- F32 dist = (F32)to_vec.magVec();
- F32 color_frac = 1.f;
- if (dist > 0.99f * LLViewerCamera::getInstance()->getFar())
- {
- color_frac = 0.4f;
- // pos_global = gAgent.getCameraPositionGlobal() + 0.99f*(LLViewerCamera::getInstance()->getFar()/dist)*to_vec;
- }
- else
- {
- color_frac = 1.f - 0.6f*(dist/LLViewerCamera::getInstance()->getFar());
- }
- LLColor4 fogged_color = color_frac * color + (1 - color_frac)*gSky.getFogColor();
- F32 FADE_DIST = 3.f;
- fogged_color.mV[3] = llmax(0.2f, llmin(0.5f,(dist-FADE_DIST)/FADE_DIST));
- LLVector3 pos_agent = gAgent.getPosAgentFromGlobal(pos_global);
- LLGLSTracker gls_tracker; // default+ CULL_FACE + LIGHTING + GL_BLEND + GL_ALPHA_TEST
- gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
- LLGLDisable cull_face(GL_CULL_FACE);
- LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
-
-
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
- glTranslatef(pos_agent.mV[0], pos_agent.mV[1], pos_agent.mV[2]);
-
- draw_shockwave(1024.f, gRenderStartTime.getElapsedTimeF32(), 32, fogged_color);
- gGL.color4fv(fogged_color.mV);
- const U32 BEACON_VERTS = 256;
- const F32 step = 1024.0f/BEACON_VERTS;
-
- LLVector3 x_axis = LLViewerCamera::getInstance()->getLeftAxis();
- F32 t = gRenderStartTime.getElapsedTimeF32();
- F32 dr = dist/LLViewerCamera::getInstance()->getFar();
-
- for (U32 i = 0; i < BEACON_VERTS; i++)
- {
- F32 x = x_axis.mV[0];
- F32 y = x_axis.mV[1];
-
- F32 z = i * step;
- F32 z_next = (i+1)*step;
-
- F32 a = pulse_func(t, z);
- F32 an = pulse_func(t, z_next);
-
- LLColor4 c_col = fogged_color + LLColor4(a,a,a,a);
- LLColor4 col_next = fogged_color + LLColor4(an,an,an,an);
- LLColor4 col_edge = fogged_color * LLColor4(a,a,a,0.0f);
- LLColor4 col_edge_next = fogged_color * LLColor4(an,an,an,0.0f);
-
- a *= 2.f;
- a += 1.0f+dr;
-
- an *= 2.f;
- an += 1.0f+dr;
-
- gGL.begin(LLRender::TRIANGLE_STRIP);
- gGL.color4fv(col_edge.mV);
- gGL.vertex3f(-x*a, -y*a, z);
- gGL.color4fv(col_edge_next.mV);
- gGL.vertex3f(-x*an, -y*an, z_next);
-
- gGL.color4fv(c_col.mV);
- gGL.vertex3f(0, 0, z);
- gGL.color4fv(col_next.mV);
- gGL.vertex3f(0, 0, z_next);
-
- gGL.color4fv(col_edge.mV);
- gGL.vertex3f(x*a,y*a,z);
- gGL.color4fv(col_edge_next.mV);
- gGL.vertex3f(x*an,y*an,z_next);
-
- gGL.end();
- }
-
- //gCylinder.render(1000);
- glPopMatrix();
- std::string text;
- text = llformat( "%.0f m", to_vec.magVec());
- LLWString wstr;
- wstr += utf8str_to_wstring(label);
- wstr += 'n';
- wstr += utf8str_to_wstring(text);
- hud_textp->setFont(LLFontGL::getFontSansSerif());
- hud_textp->setZCompare(FALSE);
- hud_textp->setColor(LLColor4(1.f, 1.f, 1.f, llmax(0.2f, llmin(1.f,(dist-FADE_DIST)/FADE_DIST))));
- hud_textp->setString(wstr);
- hud_textp->setVertAlignment(LLHUDText::ALIGN_VERT_CENTER);
- hud_textp->setPositionAgent(pos_agent);
- }
- void LLTracker::stopTrackingAll(BOOL clear_ui)
- {
- switch (mTrackingStatus)
- {
- case TRACKING_AVATAR :
- stopTrackingAvatar(clear_ui);
- break;
- case TRACKING_LANDMARK :
- stopTrackingLandmark(clear_ui);
- break;
- case TRACKING_LOCATION :
- stopTrackingLocation(clear_ui);
- break;
- default:
- mTrackingStatus = TRACKING_NOTHING;
- break;
- }
- }
- void LLTracker::stopTrackingAvatar(BOOL clear_ui)
- {
- LLAvatarTracker& av_tracker = LLAvatarTracker::instance();
- if( !av_tracker.getAvatarID().isNull() )
- {
- av_tracker.untrack( av_tracker.getAvatarID() );
- }
- purgeBeaconText();
- gFloaterWorldMap->clearAvatarSelection(clear_ui);
- mTrackingStatus = TRACKING_NOTHING;
- }
- void LLTracker::stopTrackingLandmark(BOOL clear_ui)
- {
- purgeBeaconText();
- mTrackedLandmarkAssetID.setNull();
- mTrackedLandmarkItemID.setNull();
- mTrackedLandmarkName.assign("");
- mTrackedPositionGlobal.zeroVec();
- mHasLandmarkPosition = FALSE;
- mHasReachedLandmark = FALSE;
- mLandmarkHasBeenVisited = TRUE;
- gFloaterWorldMap->clearLandmarkSelection(clear_ui);
- mTrackingStatus = TRACKING_NOTHING;
- }
- void LLTracker::stopTrackingLocation(BOOL clear_ui)
- {
- purgeBeaconText();
- mTrackedLocationName.assign("");
- mIsTrackingLocation = FALSE;
- mTrackedPositionGlobal.zeroVec();
- gFloaterWorldMap->clearLocationSelection(clear_ui);
- mTrackingStatus = TRACKING_NOTHING;
- mTrackingLocationType = LOCATION_NOTHING;
- }
- void LLTracker::clearFocus()
- {
- instance()->mTrackingStatus = TRACKING_NOTHING;
- }
- void LLTracker::drawMarker(const LLVector3d& pos_global, const LLColor4& color)
- {
- // get position
- LLVector3 pos_local = gAgent.getPosAgentFromGlobal(pos_global);
- // check in frustum
- LLCoordGL screen;
- S32 x = 0;
- S32 y = 0;
- const BOOL CLAMP = TRUE;
- if (LLViewerCamera::getInstance()->projectPosAgentToScreen(pos_local, screen, CLAMP)
- || LLViewerCamera::getInstance()->projectPosAgentToScreenEdge(pos_local, screen) )
- {
- gHUDView->screenPointToLocal(screen.mX, screen.mY, &x, &y);
- // the center of the rendered position of the arrow obeys
- // the following rules:
- // (1) it lies on an ellipse centered on the target position
- // (2) it lies on the line between the target and the window center
- // (3) right now the radii of the ellipse are fixed, but eventually
- // they will be a function of the target text
- //
- // from those rules we can compute the position of the
- // lower left corner of the image
- LLRect rect = gHUDView->getRect();
- S32 x_center = lltrunc(0.5f * (F32)rect.getWidth());
- S32 y_center = lltrunc(0.5f * (F32)rect.getHeight());
- x = x - x_center; // x and y relative to center
- y = y - y_center;
- F32 dist = sqrt((F32)(x*x + y*y));
- S32 half_arrow_size = lltrunc(0.5f * HUD_ARROW_SIZE);
- if (dist > 0.f)
- {
- const F32 ARROW_ELLIPSE_RADIUS_X = 2 * HUD_ARROW_SIZE;
- const F32 ARROW_ELLIPSE_RADIUS_Y = HUD_ARROW_SIZE;
- // compute where the arrow should be
- F32 x_target = (F32)(x + x_center) - (ARROW_ELLIPSE_RADIUS_X * ((F32)x / dist) );
- F32 y_target = (F32)(y + y_center) - (ARROW_ELLIPSE_RADIUS_Y * ((F32)y / dist) );
- // keep the arrow within the window
- F32 x_clamped = llclamp( x_target, (F32)half_arrow_size, (F32)(rect.getWidth() - half_arrow_size));
- F32 y_clamped = llclamp( y_target, (F32)half_arrow_size, (F32)(rect.getHeight() - half_arrow_size));
- F32 slope = (F32)(y) / (F32)(x);
- F32 window_ratio = (F32)(rect.getHeight() - HUD_ARROW_SIZE) / (F32)(rect.getWidth() - HUD_ARROW_SIZE);
- // if the arrow has been clamped on one axis
- // then we need to compute the other axis
- if (llabs(slope) > window_ratio)
- {
- if (y_clamped != (F32)y_target)
- {
- // clamp by y
- x_clamped = (y_clamped - (F32)y_center) / slope + (F32)x_center;
- }
- }
- else if (x_clamped != (F32)x_target)
- {
- // clamp by x
- y_clamped = (x_clamped - (F32)x_center) * slope + (F32)y_center;
- }
- mHUDArrowCenterX = lltrunc(x_clamped);
- mHUDArrowCenterY = lltrunc(y_clamped);
- }
- else
- {
- // recycle the old values
- x = mHUDArrowCenterX - x_center;
- y = mHUDArrowCenterY - y_center;
- }
- F32 angle = atan2( (F32)y, (F32)x );
- gl_draw_scaled_rotated_image(mHUDArrowCenterX - half_arrow_size,
- mHUDArrowCenterY - half_arrow_size,
- HUD_ARROW_SIZE, HUD_ARROW_SIZE,
- RAD_TO_DEG * angle,
- LLWorldMapView::sTrackArrowImage->getImage(),
- color);
- }
- }
- void LLTracker::setLandmarkVisited()
- {
- // poke the inventory item
- if (!mTrackedLandmarkItemID.isNull())
- {
- LLInventoryItem* i = gInventory.getItem( mTrackedLandmarkItemID );
- LLViewerInventoryItem* item = (LLViewerInventoryItem*)i;
- if ( item
- && !(item->getFlags()&LLInventoryItem::II_FLAGS_LANDMARK_VISITED))
- {
- U32 flags = item->getFlags();
- flags |= LLInventoryItem::II_FLAGS_LANDMARK_VISITED;
- item->setFlags(flags);
- LLMessageSystem* msg = gMessageSystem;
- msg->newMessage("ChangeInventoryItemFlags");
- msg->nextBlock("AgentData");
- msg->addUUID("AgentID", gAgent.getID());
- msg->addUUID("SessionID", gAgent.getSessionID());
- msg->nextBlock("InventoryData");
- msg->addUUID("ItemID", mTrackedLandmarkItemID);
- msg->addU32("Flags", flags);
- gAgent.sendReliableMessage();
- LLInventoryModel::LLCategoryUpdate up(item->getParentUUID(), 0);
- gInventory.accountForUpdate(up);
- // need to communicate that the icon needs to change...
- gInventory.addChangedMask(LLInventoryObserver::INTERNAL, item->getUUID());
- gInventory.notifyObservers();
- }
- }
- }
- void LLTracker::cacheLandmarkPosition()
- {
- // the landmark asset download may have finished, in which case
- // we'll now be able to figure out where we're trying to go
- BOOL found_landmark = FALSE;
- if( mTrackedLandmarkAssetID == LLFloaterWorldMap::getHomeID())
- {
- LLVector3d pos_global;
- if ( gAgent.getHomePosGlobal( &mTrackedPositionGlobal ))
- {
- found_landmark = TRUE;
- }
- else
- {
- llwarns << "LLTracker couldn't find home pos" << llendl;
- mTrackedLandmarkAssetID.setNull();
- mTrackedLandmarkItemID.setNull();
- }
- }
- else
- {
- LLLandmark* landmark = gLandmarkList.getAsset(mTrackedLandmarkAssetID);
- if(landmark && landmark->getGlobalPos(mTrackedPositionGlobal))
- {
- found_landmark = TRUE;
- // cache the object's visitation status
- mLandmarkHasBeenVisited = FALSE;
- LLInventoryItem* item = gInventory.getItem(mTrackedLandmarkItemID);
- if ( item
- && item->getFlags()&LLInventoryItem::II_FLAGS_LANDMARK_VISITED)
- {
- mLandmarkHasBeenVisited = TRUE;
- }
- }
- }
- if ( found_landmark && gFloaterWorldMap )
- {
- mHasReachedLandmark = FALSE;
- F32 dist = gFloaterWorldMap->getDistanceToDestination(mTrackedPositionGlobal, 1.0f);
- if ( dist < DESTINATION_UNVISITED_RADIUS )
- {
- mHasReachedLandmark = TRUE;
- }
- mHasLandmarkPosition = TRUE;
- }
- mHasLandmarkPosition = found_landmark;
- }
- void LLTracker::purgeBeaconText()
- {
- if(!mBeaconText.isNull())
- {
- mBeaconText->markDead();
- mBeaconText = NULL;
- }
- }