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source: code/trunk/src/modules/objects/SpaceBoundaries.cc @ 9695

Last change on this file since 9695 was 9667, checked in by landauf, 11 years ago

merged core6 back to trunk

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File size: 11.0 KB
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[8087]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 *      Maurus Kaufmann
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29#include "SpaceBoundaries.h"
30
[8632]31#include <OgreBillboardSet.h>
32
33#include "core/CoreIncludes.h"
[9667]34#include "core/object/ObjectListIterator.h"
[8201]35#include "core/XMLPort.h"
[8632]36
37#include "graphics/Billboard.h"
38#include "infos/PlayerInfo.h"
39#include "worldentities/WorldEntity.h"
[8201]40#include "worldentities/pawns/Pawn.h"
[8087]41
42namespace orxonox
43{
[9667]44    RegisterClass(SpaceBoundaries);
[8087]45
[9667]46    SpaceBoundaries::SpaceBoundaries(Context* context) : StaticEntity(context)
[8087]47    {
[8614]48        RegisterObject(SpaceBoundaries);
49
[8201]50        this->setMaxDistance(3000);
[8614]51        this->setWarnDistance(this->getMaxDistance());
52        this->setShowDistance(this->getMaxDistance());
[8404]53        this->setReaction(0);
[8087]54    }
55    SpaceBoundaries::~SpaceBoundaries()
56    {
[8470]57        if (this->isInitialized())
58        {
59            this->pawnsIn_.clear();
[8767]60
[8660]61            for( std::vector<BillboardAdministration>::iterator current = this->billboards_.begin(); current != this->billboards_.end(); current++)
[8301]62            {
[8470]63                if( current->billy != NULL)
64                {
65                    delete current->billy;
66                }
[8301]67            }
[8470]68            this->billboards_.clear();
[8301]69        }
[8087]70    }
[8767]71
[8281]72    void SpaceBoundaries::checkWhoIsIn()
73    {
74        pawnsIn_.clear();
[9667]75        for(ObjectList<Pawn>::iterator current = ObjectList<Pawn>::begin(); current != ObjectList<Pawn>::end(); ++current)
[8281]76        {
77            Pawn* currentPawn = *current;
[8614]78            if( this->reaction_ == 0 )
[8281]79            {
[8614]80                float distance = this->computeDistance(currentPawn);
81                if(distance <= this->maxDistance_)
82                {
83                    pawnsIn_.push_back(currentPawn);
84                }
85            } else if (this->reaction_ == 2) {
86                float distance = this->computeDistance(currentPawn);
87                if(distance >= this->maxDistance_)
88                {
89                    pawnsIn_.push_back(currentPawn);
90                }
91            } else {
[8281]92                pawnsIn_.push_back(currentPawn);
93            }
94        }
95    }
[8767]96
[8660]97    void SpaceBoundaries::positionBillboard(const Vector3& position, float alpha)
[8301]98    {
[8660]99        size_t current;
100        for (current = 0; current < this->billboards_.size(); ++current)
101            if (!this->billboards_[current].usedYet)
[8301]102                break;
[8660]103
104        if (current == this->billboards_.size())
[8301]105        {
[9667]106            Billboard* billboard = new Billboard(this->getContext());
[8660]107            billboard->setPosition(position);
[8694]108            billboard->setSyncMode(ObjectDirection::None);
[8660]109            this->setBillboardOptions(billboard);
110            BillboardAdministration ba = {true, billboard};
111            this->billboards_.push_back(ba);
[8301]112        }
[8660]113
114        this->billboards_[current].billy->setPosition(position);
115        this->billboards_[current].billy->setVisible(true);
116        this->billboards_[current].billy->setColour(ColourValue(1, 1, 1, alpha));
117        this->billboards_[current].usedYet = true;
118
119        Vector3 directionVector = (this->getPosition() - position).normalisedCopy(); // vector from the position of the billboard to the center of the sphere
120        this->billboards_[current].billy->setCommonDirection(directionVector);
121
122        Vector3 upVector = Vector3(directionVector.z, directionVector.z, -(directionVector.x + directionVector.y)); // vector perpendicular to the direction vector
123        upVector.normalise();
124        this->billboards_[current].billy->setCommonUpVector(upVector);
[8301]125    }
[8767]126
[8301]127    void SpaceBoundaries::setBillboardOptions(Billboard *billy)
128    {
129        if(billy != NULL)
130        {
[8614]131            billy->setMaterial("Grid");
132            billy->setBillboardType(Ogre::BBT_PERPENDICULAR_COMMON);
133            billy->setDefaultDimensions(150, 150);
[8301]134            billy->setVisible(true);
135        }
136    }
[8767]137
[8301]138    void SpaceBoundaries::removeAllBillboards()
139    {
[8660]140        for( std::vector<BillboardAdministration>::iterator current = this->billboards_.begin(); current != this->billboards_.end(); current++ )
[8301]141        {
142            current->usedYet = false;
143            current->billy->setVisible(false);
144        }
145    }
[8767]146
[8110]147    void SpaceBoundaries::setMaxDistance(float r)
148    {
[8166]149        this->maxDistance_ = r;
[8110]150    }
151    float SpaceBoundaries::getMaxDistance()
152    {
[8166]153        return this->maxDistance_;
[8110]154    }
[8767]155
[8110]156    void SpaceBoundaries::setWarnDistance(float r)
157    {
[8166]158        this->warnDistance_ = r;
[8110]159    }
160    float SpaceBoundaries::getWarnDistance()
161    {
[8166]162        return this->warnDistance_;
[8110]163    }
[8767]164
[8244]165    void SpaceBoundaries::setShowDistance(float r)
166    {
167        this->showDistance_ = r;
168    }
169    float SpaceBoundaries::getShowDistance()
170    {
171        return this->showDistance_;
172    }
[8767]173
[8201]174    void SpaceBoundaries::setHealthDecrease(float amount)
175    {
176        this->healthDecrease_ = amount/1000;
177    }
178    float SpaceBoundaries::getHealthDecrease()
179    {
180        return this->healthDecrease_;
181    }
[8767]182
[8404]183    void SpaceBoundaries::setReaction(int mode)
184    {
185        this->reaction_ = mode;
186    }
187    int SpaceBoundaries::getReaction()
188    {
189        return this->reaction_;
190    }
[8087]191
192    void SpaceBoundaries::XMLPort(Element& xmlelement, XMLPort::Mode mode)
193    {
[8110]194        SUPER(SpaceBoundaries, XMLPort, xmlelement, mode);
[8087]195
[8110]196        XMLPortParam(SpaceBoundaries, "maxDistance", setMaxDistance, getMaxDistance, xmlelement, mode);
197        XMLPortParam(SpaceBoundaries, "warnDistance", setWarnDistance, getWarnDistance, xmlelement, mode);
[8614]198        XMLPortParam(SpaceBoundaries, "showDistance", setShowDistance, getShowDistance, xmlelement, mode);
[8201]199        XMLPortParam(SpaceBoundaries, "healthDecrease", setHealthDecrease, getHealthDecrease, xmlelement, mode);
[8404]200        XMLPortParam(SpaceBoundaries, "reactionMode", setReaction, getReaction, xmlelement, mode);
[8087]201    }
[8767]202
[8110]203    void SpaceBoundaries::tick(float dt)
204    {
[8404]205        this->checkWhoIsIn();
[8301]206        this->removeAllBillboards();
[8767]207
[8301]208        float distance;
209        bool humanItem;
[8404]210        for( std::list<WeakPtr<Pawn> >::iterator current = pawnsIn_.begin(); current != pawnsIn_.end(); current++ )
[8110]211        {
[8404]212            Pawn* currentPawn = current->get();
213            if( currentPawn && currentPawn->getNode() ) 
[8110]214            {
[8404]215                distance = this->computeDistance(currentPawn);
216                humanItem = this->isHumanPlayer(currentPawn);
[8858]217//                orxout() << "Distance:" << distance << endl; // message for debugging
[8614]218                if(distance > this->warnDistance_ && distance < this->maxDistance_) // Display warning
[8164]219                {
[8404]220                    if(humanItem)
221                    {
[8614]222                        this->displayWarning("Attention! You are close to the boundary!");
[8404]223                    }
[8201]224                }
[8614]225                if(/* humanItem &&*/ abs(this->maxDistance_ - distance) < this->showDistance_ )
[8164]226                {
[8660]227                    this->displayBoundaries(currentPawn, 1.0f - fabs(this->maxDistance_ - distance) / this->showDistance_); // Show the boundary
[8164]228                }
[8404]229                if(distance > this->maxDistance_ && (this->reaction_ == 1) )
230                {
231                    if( humanItem )
232                    {
[8858]233//                        orxout() << "Health should be decreasing!" << endl;
[8404]234                        this->displayWarning("You are out of the area now!");
235                    }
236                    currentPawn->removeHealth( (distance - this->maxDistance_) * this->healthDecrease_);
237                }
[8614]238                if( (this->reaction_ == 0) && (distance + 100 > this->maxDistance_)) // Exception: A Pawn can't move more than 100 units per tick.
[8404]239                {
240                    this->conditionalBounceBack(currentPawn, distance, dt);
241                }
[8614]242                if( this->reaction_ == 2 && (distance - 100 < this->maxDistance_) )
243                {
244                    this->conditionalBounceBack(currentPawn, distance, dt);
245                }
[8110]246            }
247        }
248    }
[8767]249
[8110]250    float SpaceBoundaries::computeDistance(WorldEntity *item)
251    {
[8301]252        if(item != NULL)
253        {
254            Vector3 itemPosition = item->getPosition();
255            return (itemPosition.distance(this->getPosition()));
256        } else {
257            return -1;
258        }
[8110]259    }
[8767]260
[8164]261    void SpaceBoundaries::displayWarning(const std::string warnText)
[8767]262    {
[8614]263        // TODO
[8164]264    }
[8767]265
[8660]266    void SpaceBoundaries::displayBoundaries(Pawn *item, float alpha)
[8244]267    {
[8767]268
[8244]269        Vector3 direction = item->getPosition() - this->getPosition();
270        direction.normalise();
[8767]271
[8244]272        Vector3 boundaryPosition = this->getPosition() + direction * this->maxDistance_;
[8767]273
[8660]274        this->positionBillboard(boundaryPosition, alpha);
[8244]275    }
[8767]276
[8404]277    void SpaceBoundaries::conditionalBounceBack(Pawn *item, float currentDistance, float dt)
[8244]278    {
279        Vector3 normal = item->getPosition() - this->getPosition();
[8404]280        normal.normalise();
281        Vector3 velocity = item->getVelocity();
282        float normalSpeed = item->getVelocity().dotProduct(normal);
[8767]283
[8614]284        /* Check, whether the Pawn would leave the boundary in the next tick, if so send it back. */
285        if( this->reaction_ == 0 && currentDistance + normalSpeed * dt > this->maxDistance_ - 10 ) // -10: "security measure"
[8244]286        {
[8614]287            bounceBack(item, &normal, &velocity);
288        } else if (this->reaction_ == 2 && currentDistance - normalSpeed * dt < this->maxDistance_ + 10 ) // 10: "security measure"
289        {
290            normal = normal * (-1);
291            bounceBack(item, &normal, &velocity);
[8244]292        }
293    }
[8767]294
[8614]295    void SpaceBoundaries::bounceBack(Pawn *item, Vector3 *normal, Vector3 *velocity)
296    {
297        float dampingFactor = 0.5;
298        *velocity = velocity->reflect(*normal);
299        Vector3 acceleration = item->getAcceleration();
300        acceleration = acceleration.reflect(*normal);
[8767]301
[8614]302        item->lookAt( *velocity + this->getPosition() );
[8767]303
[8614]304        item->setAcceleration(acceleration * dampingFactor);
305        item->setVelocity(*velocity * dampingFactor);
[8767]306
[8614]307        item->setPosition( item->getPosition() - *normal * 10 ); // Set the position of the Pawn to be well inside the boundary.
308    }
[8767]309
[8164]310    bool SpaceBoundaries::isHumanPlayer(Pawn *item)
311    {
312        if(item != NULL)
313        {
[8201]314            if(item->getPlayer())
315            {
316                return item->getPlayer()->isHumanPlayer();
317            }
[8164]318        }
[8201]319        return false;
[8164]320    }
[8767]321
[8087]322}
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