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source: code/branches/formationupdate/src/modules/overlays/hud/HUDRadar.cc @ 10111

Last change on this file since 10111 was 9348, checked in by landauf, 12 years ago

merged branch presentation2012merge back to trunk

  • Property svn:eol-style set to native
File size: 8.0 KB
Line 
1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Yuning Chai
24 *      Felix Schulthess
25 *   Co-authors:
26 *      Reto Grieder
27 *
28 */
29
30#include "HUDRadar.h"
31
32#include <OgreOverlayManager.h>
33#include <OgrePanelOverlayElement.h>
34
35#include "util/Math.h"
36#include "util/StringUtils.h"
37#include "core/CoreIncludes.h"
38#include "core/XMLPort.h"
39#include "tools/TextureGenerator.h"
40#include "worldentities/ControllableEntity.h"
41#include "Scene.h"
42#include "Radar.h"
43
44namespace orxonox
45{
46    CreateFactory(HUDRadar);
47
48    HUDRadar::HUDRadar(BaseObject* creator)
49        : OrxonoxOverlay(creator)
50    {
51        RegisterObject(HUDRadar);
52
53        this->marker_ = static_cast<Ogre::PanelOverlayElement*>(Ogre::OverlayManager::getSingleton()
54            .createOverlayElement("Panel", "HUDRadar_marker_" + getUniqueNumberString()));
55        this->marker_->setMaterialName("Orxonox/RadarMarker");
56        this->overlay_->add2D(this->marker_);
57        this->marker_->hide();
58
59        this->setRadarSensitivity(1.0f);
60        this->setHalfDotSizeDistance(3000.0f);
61        this->setMaximumDotSize(0.1f);
62
63        this->shapeMaterials_[RadarViewable::Dot]      = "RadarDot.png";
64        this->shapeMaterials_[RadarViewable::Triangle] = "RadarTriangle.png";
65        this->shapeMaterials_[RadarViewable::Square]   = "RadarSquare.png";
66        this->setDetectionLimit( 10000.0f );
67        this->owner_ = 0;
68    }
69
70    HUDRadar::~HUDRadar()
71    {
72        if (this->isInitialized())
73        {
74            Ogre::OverlayManager::getSingleton().destroyOverlayElement(this->marker_);
75            for (std::map<RadarViewable*,Ogre::PanelOverlayElement*>::iterator it = this->radarObjects_.begin();
76                it != this->radarObjects_.end(); ++it)
77            {
78                Ogre::OverlayManager::getSingleton().destroyOverlayElement(it->second);
79            }
80        }
81    }
82
83    void HUDRadar::XMLPort(Element& xmlelement, XMLPort::Mode mode)
84    {
85        SUPER(HUDRadar, XMLPort, xmlelement, mode);
86
87        XMLPortParam(HUDRadar, "sensitivity", setRadarSensitivity, getRadarSensitivity, xmlelement, mode);
88        XMLPortParam(HUDRadar, "halfDotSizeDistance", setHalfDotSizeDistance, getHalfDotSizeDistance, xmlelement, mode);
89        XMLPortParam(HUDRadar, "maximumDotSize", setMaximumDotSize, getMaximumDotSize, xmlelement, mode);
90    }
91
92    void HUDRadar::addObject(RadarViewable* object)
93    {
94        if (object == orxonox_cast<RadarViewable*>(this->owner_))
95            return;
96        if( showObject(object) == false ) //do not show objects that are "invisible" or "radar invisible"
97            return;
98
99        // Make sure the object hasn't been added yet
100        assert( this->radarObjects_.find(object) == this->radarObjects_.end() );
101
102        // Create everything needed to display the object on the radar and add it to the map
103        Ogre::PanelOverlayElement* panel;
104        panel = static_cast<Ogre::PanelOverlayElement*>(
105            Ogre::OverlayManager::getSingleton().createOverlayElement("Panel", "RadarDot" + getUniqueNumberString()));
106        this->overlay_->add2D(panel);
107        // get right material
108        panel->setMaterialName(TextureGenerator::getMaterialName(
109            shapeMaterials_[object->getRadarObjectShape()], object->getRadarObjectColour()));
110        panel->hide();
111        this->radarObjects_[object] = panel;
112    }
113
114    void HUDRadar::removeObject(RadarViewable* object)
115    {
116        // If object was added at all then remove it
117        std::map<RadarViewable*,Ogre::PanelOverlayElement*>::iterator it;
118        it = this->radarObjects_.find( object );
119        if( it != this->radarObjects_.end() )
120        {
121            Ogre::OverlayManager::getSingleton().destroyOverlayElement(it->second);
122            this->radarObjects_.erase(it);
123        }
124    }
125
126    void HUDRadar::objectChanged( RadarViewable* rv )
127    {// The new implementation behaves more precisely, since inactive RadarViewables are not displayed anymore.
128        this->removeObject(rv);
129        this->addObject(rv);
130    }
131
132    void HUDRadar::gatherObjects()
133    {
134        const std::set<RadarViewable*>& objectSet = this->getCreator()->getScene()->getRadar()->getRadarObjects();
135        std::set<RadarViewable*>::const_iterator it;
136        for( it=objectSet.begin(); it!=objectSet.end(); ++it )
137            this->addObject(*it);
138        this->radarTick(0);
139    }
140
141    void HUDRadar::radarTick(float dt)
142    {
143        // Make sure the owner of the radar was defined
144        if( !this->owner_ )
145            return;
146
147        this->marker_->hide();      // in case that no object is in focus
148        // get the focus object
149        Radar* radar = this->getOwner()->getScene()->getRadar();
150        const RadarViewable* focusObject = radar->getFocus();
151
152        // update the distances for all objects
153        std::map<RadarViewable*,Ogre::PanelOverlayElement*>::iterator it;
154        for( it = this->radarObjects_.begin(); it != this->radarObjects_.end(); ++it )
155        {
156            // Make sure the object really is a WorldEntity
157            const WorldEntity* wePointer = it->first->getWorldEntity();
158            if( !wePointer )
159            {
160                orxout(internal_error) << "Cannot display a non-WorldEntitiy on the radar" << endl;
161                assert(0);
162            }
163            bool isFocus = (it->first == focusObject);
164            // set size to fit distance...
165            float distance = (wePointer->getWorldPosition() - this->owner_->getPosition()).length();
166            // calculate the size with 1/distance dependency for simplicity (instead of exp(-distance * lambda)
167            float size = maximumDotSize_ * halfDotSizeDistance_ / (halfDotSizeDistance_ + distance) * it->first->getRadarObjectScale();
168            it->second->setDimensions(size, size);
169
170            // calc position on radar...
171            Vector2 coord = get2DViewcoordinates(this->owner_->getPosition(), this->owner_->getOrientation() * WorldEntity::FRONT, this->owner_->getOrientation() * WorldEntity::UP, wePointer->getWorldPosition());
172            coord *= math::pi / 3.5f; // small adjustment to make it fit the texture
173            it->second->setPosition((1.0f + coord.x - size) * 0.5f, (1.0f - coord.y - size) * 0.5f);
174            if( distance < detectionLimit_ || detectionLimit_ < 0 )
175                it->second->show();
176            else
177                it->second->hide();
178
179            // if this object is in focus, then set the focus marker
180            if (isFocus)
181            {
182                this->marker_->setDimensions(size * 1.5f, size * 1.5f);
183                this->marker_->setPosition((1.0f + coord.x - size * 1.5f) * 0.5f, (1.0f - coord.y - size * 1.5f) * 0.5f);
184                this->marker_->show();
185            }
186        }
187    }
188
189    bool HUDRadar::showObject(RadarViewable* rv)
190    {
191        if ( rv == orxonox_cast<RadarViewable*> ( this->getOwner() ) )
192            return false;
193        assert( rv->getWorldEntity() );
194        if ( rv->getWorldEntity()->isVisible()==false || rv->getRadarVisibility()==false )
195            return false;
196        return true;
197    }
198
199
200    void HUDRadar::changedOwner()
201    {
202        SUPER(HUDRadar, changedOwner);
203
204        this->owner_ = orxonox_cast<ControllableEntity*>(this->getOwner());
205        assert(this->radarObjects_.size() == 0);
206        this->gatherObjects();
207    }
208}
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