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source: code/branches/ai/src/modules/overlays/hud/HUDRadar.cc @ 8329

Last change on this file since 8329 was 7401, checked in by landauf, 14 years ago

merged doc branch back to trunk

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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/WorldEntity.h"
41#include "worldentities/pawns/Pawn.h"
42#include "Scene.h"
43#include "Radar.h"
44
45namespace orxonox
46{
47    CreateFactory(HUDRadar);
48
49    HUDRadar::HUDRadar(BaseObject* creator)
50        : OrxonoxOverlay(creator)
51    {
52        RegisterObject(HUDRadar);
53
54        this->marker_ = static_cast<Ogre::PanelOverlayElement*>(Ogre::OverlayManager::getSingleton()
55            .createOverlayElement("Panel", "HUDRadar_marker_" + getUniqueNumberString()));
56        this->marker_->setMaterialName("Orxonox/RadarMarker");
57        this->overlay_->add2D(this->marker_);
58        this->marker_->hide();
59
60        this->setRadarSensitivity(1.0f);
61        this->setHalfDotSizeDistance(3000.0f);
62        this->setMaximumDotSize(0.1f);
63
64        this->shapeMaterials_[RadarViewable::Dot]      = "RadarDot.png";
65        this->shapeMaterials_[RadarViewable::Triangle] = "RadarTriangle.png";
66        this->shapeMaterials_[RadarViewable::Square]   = "RadarSquare.png";
67
68        this->owner_ = 0;
69    }
70
71    HUDRadar::~HUDRadar()
72    {
73        if (this->isInitialized())
74        {
75            Ogre::OverlayManager::getSingleton().destroyOverlayElement(this->marker_);
76            for (std::map<RadarViewable*,Ogre::PanelOverlayElement*>::iterator it = this->radarObjects_.begin();
77                it != this->radarObjects_.end(); ++it)
78            {
79                Ogre::OverlayManager::getSingleton().destroyOverlayElement(it->second);
80            }
81        }
82    }
83
84    void HUDRadar::XMLPort(Element& xmlelement, XMLPort::Mode mode)
85    {
86        SUPER(HUDRadar, XMLPort, xmlelement, mode);
87
88        XMLPortParam(HUDRadar, "sensitivity", setRadarSensitivity, getRadarSensitivity, xmlelement, mode);
89        XMLPortParam(HUDRadar, "halfDotSizeDistance", setHalfDotSizeDistance, getHalfDotSizeDistance, xmlelement, mode);
90        XMLPortParam(HUDRadar, "maximumDotSize", setMaximumDotSize, getMaximumDotSize, xmlelement, mode);
91    }
92
93    void HUDRadar::addObject(RadarViewable* object)
94    {
95        if (object == dynamic_cast<RadarViewable*>(this->owner_))
96            return;
97
98        // Make sure the object hasn't been added yet
99        assert( this->radarObjects_.find(object) == this->radarObjects_.end() );
100
101        // Create everything needed to display the object on the radar and add it to the map
102        Ogre::PanelOverlayElement* panel;
103        panel = static_cast<Ogre::PanelOverlayElement*>(
104            Ogre::OverlayManager::getSingleton().createOverlayElement("Panel", "RadarDot" + getUniqueNumberString()));
105        this->overlay_->add2D(panel);
106        // get right material
107        panel->setMaterialName(TextureGenerator::getMaterialName(
108            shapeMaterials_[object->getRadarObjectShape()], object->getRadarObjectColour()));
109        this->radarObjects_[object] = panel;
110    }
111
112    void HUDRadar::removeObject(RadarViewable* object)
113    {
114        // If object was added at all then remove it
115        std::map<RadarViewable*,Ogre::PanelOverlayElement*>::iterator it;
116        it = this->radarObjects_.find( object );
117        if( it != this->radarObjects_.end() )
118        {
119            Ogre::OverlayManager::getSingleton().destroyOverlayElement(it->second);
120            this->radarObjects_.erase(it);
121        }
122    }
123
124    void HUDRadar::objectChanged( RadarViewable* rv )
125    {
126        if (rv == dynamic_cast<RadarViewable*>(this->owner_))
127            return;
128        assert( this->radarObjects_.find(rv) != this->radarObjects_.end() );
129        Ogre::PanelOverlayElement* panel = this->radarObjects_[rv];
130        panel->setMaterialName(TextureGenerator::getMaterialName(
131            shapeMaterials_[rv->getRadarObjectShape()], rv->getRadarObjectColour()));
132    }
133
134    void HUDRadar::gatherObjects()
135    {
136        const std::set<RadarViewable*>& objectSet = this->getCreator()->getScene()->getRadar()->getRadarObjects();
137        std::set<RadarViewable*>::const_iterator it;
138        for( it=objectSet.begin(); it!=objectSet.end(); ++it )
139            this->addObject(*it);
140    }
141
142    void HUDRadar::radarTick(float dt)
143    {
144        // Make sure the owner of the radar was defined
145        if( !this->owner_ )
146        {
147            CCOUT(0) << "No owner defined" << std::endl;
148            assert(0);
149        }
150
151        this->marker_->hide();      // in case that no object is in focus
152        // get the focus object
153        Radar* radar = this->getOwner()->getScene()->getRadar();
154        const RadarViewable* focusObject = radar->getFocus();
155
156        // update the distances for all objects
157        std::map<RadarViewable*,Ogre::PanelOverlayElement*>::iterator it;
158        for( it = this->radarObjects_.begin(); it != this->radarObjects_.end(); ++it )
159        {
160            // Make sure the object really is a WorldEntity
161            const WorldEntity* wePointer = it->first->getWorldEntity();
162            if( !wePointer )
163            {
164                CCOUT(0) << "Cannot display a non-WorldEntitiy on the radar" << std::endl;
165                assert(0);
166            }
167            bool isFocus = (it->first == focusObject);
168            // set size to fit distance...
169            float distance = (wePointer->getWorldPosition() - this->owner_->getPosition()).length();
170            // calculate the size with 1/distance dependency for simplicity (instead of exp(-distance * lambda)
171            float size = maximumDotSize_ * halfDotSizeDistance_ / (halfDotSizeDistance_ + distance);
172            it->second->setDimensions(size, size);
173
174            // calc position on radar...
175            Vector2 coord = get2DViewcoordinates(this->owner_->getPosition(), this->owner_->getOrientation() * WorldEntity::FRONT, this->owner_->getOrientation() * WorldEntity::UP, wePointer->getWorldPosition());
176            coord *= math::pi / 3.5f; // small adjustment to make it fit the texture
177            it->second->setPosition((1.0f + coord.x - size) * 0.5f, (1.0f - coord.y - size) * 0.5f);
178            it->second->show();
179
180            // if this object is in focus, then set the focus marker
181            if (isFocus)
182            {
183                this->marker_->setDimensions(size * 1.5f, size * 1.5f);
184                this->marker_->setPosition((1.0f + coord.x - size * 1.5f) * 0.5f, (1.0f - coord.y - size * 1.5f) * 0.5f);
185                this->marker_->show();
186            }
187        }
188    }
189
190    void HUDRadar::changedOwner()
191    {
192    SUPER(HUDRadar, changedOwner);
193
194    this->owner_ = orxonox_cast<Pawn*>(this->getOwner());
195    assert(this->radarObjects_.size()==0);
196    this->gatherObjects();
197}
198}
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