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source: code/trunk/src/orxonox/Radar.cc @ 1769

Last change on this file since 1769 was 1755, checked in by rgrieder, 16 years ago

merged gui 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 *      Reto Grieder
24 *   Co-authors:
25 *      Felix Schulthess
26 *
27 */
28
29/**
30    @file
31    @brief
32*/
33
34#include "OrxonoxStableHeaders.h"
35#include "Radar.h"
36#include <cfloat>
37#include <cassert>
38#include "objects/WorldEntity.h"
39#include "objects/SpaceShip.h"
40#include "core/CoreIncludes.h"
41#include "core/ConsoleCommand.h"
42#include "core/Iterator.h"
43#include "RadarListener.h"
44
45namespace orxonox
46{
47    SetConsoleCommand(Radar, cycleNavigationFocus, true).accessLevel(AccessLevel::User);
48    SetConsoleCommand(Radar, releaseNavigationFocus, true).accessLevel(AccessLevel::User);
49
50    Radar* Radar::instance_s = 0;
51
52    Radar::Radar()
53        : focus_(0)
54        , objectTypeCounter_(0)
55    {
56        assert(instance_s == 0);
57        instance_s = this;
58
59        // TODO: make this mapping configurable. Maybe there's a possibility with self configured
60        //       configValues..
61        this->objectTypes_["Asteroid"] = RadarViewable::Dot;
62        this->objectTypes_["SpaceShip"] = RadarViewable::Square;
63        this->objectTypes_["AsdfQwerty"] = RadarViewable::Triangle;
64
65        /*WorldEntity* object;
66        object = new WorldEntity();
67        object->setPosition(2000.0, 0.0, 0.0);
68        addRadarObject(object, ColourValue(0.5, 0, 0, 1));
69        object = new WorldEntity();
70        object->setPosition(0.0, 2000.0, 0.0);
71        addRadarObject(object, ColourValue(0.5, 0, 0, 1));
72        object = new WorldEntity();
73        object->setPosition(0.0, 0.0, 2000.0);
74        addRadarObject(object, ColourValue(0.5, 0, 0, 1));
75        object = new WorldEntity();
76        object->setPosition(10000.0,16000.0,0.0);
77        addRadarObject(object);*/
78
79    }
80
81    Radar::~Radar()
82    {
83        instance_s = 0;
84    }
85
86    const RadarViewable* Radar::getFocus()
87    {
88        return *(this->itFocus_);
89    }
90
91    RadarViewable::Shape Radar::addObjectDescription(const std::string name)
92    {
93        std::map<std::string, RadarViewable::Shape>::iterator it = this->objectTypes_.find(name);
94        if (it == this->objectTypes_.end())
95            return this->objectTypes_[name] = RadarViewable::Square; // default, configure!!
96        else
97            return this->objectTypes_[name];
98    }
99
100
101    void Radar::tick(float dt)
102    {
103        if (this->focus_ != *(this->itFocus_))
104        {
105            // focus object was deleted, release focus
106            this->focus_ = 0;
107            this->itFocus_ = 0;
108        }
109
110        for (ObjectList<RadarListener>::iterator itListener = ObjectList<RadarListener>::begin(); itListener; ++itListener)
111        {
112            (*itListener)->radarTick(dt);
113
114            for (ObjectList<RadarViewable>::iterator itElement = ObjectList<RadarViewable>::begin(); itElement; ++itElement)
115            {
116                if ((*itElement) != SpaceShip::getLocalShip() && (*itListener)->getRadarSensitivity() > (*itElement)->getRadarObjectCamouflage())
117                    (*itListener)->displayObject(*itElement, *itElement == this->focus_);
118            }
119        }
120    }
121
122    void Radar::cycleFocus()
123    {
124        if (ObjectList<RadarViewable>::begin() == 0)
125        {
126            // list is empty
127            this->itFocus_ = 0;
128            this->focus_ = 0;
129        }
130        else
131        {
132            Vector3 localPosition = SpaceShip::getLocalShip()->getPosition();
133            Vector3 targetPosition = localPosition;
134            if (*(this->itFocus_))
135                targetPosition = this->itFocus_->getWorldPosition();
136
137            // find the closed object further away than targetPosition
138            float currentDistance = localPosition.squaredDistance(targetPosition);
139            float nextDistance = FLT_MAX;
140            float minimumDistance = FLT_MAX;
141            ObjectList<RadarViewable>::iterator itFallback = 0;
142
143            for (ObjectList<RadarViewable>::iterator it = ObjectList<RadarViewable>::begin(); it; ++it)
144            {
145                if (*it == SpaceShip::getLocalShip())
146                    continue;
147
148                float targetDistance = localPosition.squaredDistance((*it)->getWorldPosition());
149                if (targetDistance > currentDistance && targetDistance < nextDistance)
150                {
151                    this->itFocus_ = it;
152                    nextDistance = targetDistance;
153                }
154                if (targetDistance < minimumDistance)
155                {
156                    itFallback = it;
157                    minimumDistance = targetDistance;
158                }
159            }
160
161            if (nextDistance == FLT_MAX)
162            {
163                // we already had the furthest object
164                this->itFocus_ = itFallback;
165                this->focus_ = *itFallback;
166            }
167            else
168            {
169                this->focus_ = *(this->itFocus_);
170            }
171        }
172    }
173
174    void Radar::releaseFocus()
175    {
176        this->itFocus_ = 0;
177        this->focus_ = 0;
178    }
179
180    void Radar::listObjects() const
181    {
182        COUT(3) << "List of RadarObjects:\n";
183        // iterate through all Radar Objects
184        unsigned int i = 0;
185        for (ObjectList<RadarViewable>::iterator it = ObjectList<RadarViewable>::begin(); it; ++it, ++i)
186        {
187            COUT(3) << i++ << ": " << (*it)->getWorldPosition() << std::endl;
188        }
189    }
190
191
192    /*static*/ Radar& Radar::getInstance()
193    {
194        assert(instance_s);
195        return *instance_s;
196    }
197
198    /*static*/ void Radar::cycleNavigationFocus()
199    {
200        // avoid using getInstance because of the assert().
201        // User might call this fuction even if HUDNavigation doesn't exist.
202        if (instance_s)
203            instance_s->cycleFocus();
204    }
205
206    /*static*/ void Radar::releaseNavigationFocus()
207    {
208        // avoid using getInstance because of the assert().
209        // User might call this fuction even if HUDNavigation doesn't exist.
210        if (instance_s)
211            instance_s->releaseFocus();
212    }
213}
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