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source: code/branches/presentation/src/orxonox/objects/weaponSystem/projectiles/Projectile.cc @ 2466

Last change on this file since 2466 was 2466, checked in by rgrieder, 15 years ago

Added callback for collisions. Every WorldEntity that collides against another will be called with the following function:
virtual bool collidesAgainst(WorldEntity* otherObject, btManifoldPoint& contactPoint);
btManifoldPoint is from Bullet and tells you more about the contact point, like position.

Per default, the callback is disabled. Enable it with this→enableCollisionCallback(), for instance in your derived class constructor.
Note that if you activate the callback for e.g. SpaceShips, but not for MovableEntities, then collidesAgainst will only be called in the SpaceShip. This could be changed however, just ask me.

  • Property svn:eol-style set to native
File size: 4.1 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 *      Fabian 'x3n' Landau
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29#include "OrxonoxStableHeaders.h"
30#include "Projectile.h"
31
32#include <OgreBillboard.h>
33
34#include "core/CoreIncludes.h"
35#include "core/Executor.h"
36#include "core/ConfigValueIncludes.h"
37#include "core/Iterator.h"
38#include "tools/ParticleInterface.h"
39
40#include "objects/worldentities/Model.h"
41#include "objects/worldentities/ParticleSpawner.h"
42#include "Settings.h"
43
44namespace orxonox
45{
46    float Projectile::speed_s = 5000;
47
48    Projectile::Projectile(BaseObject* creator, Weapon* owner) : MovableEntity(creator), owner_(owner)
49    {
50        RegisterObject(Projectile);
51
52        this->setConfigValues();
53        this->explosionTemplateName_ = "Orxonox/explosion3";
54        this->smokeTemplateName_ = "Orxonox/smoke4";
55
56        this->setStatic(false);
57        this->translate(Vector3(55, 0, 0), Ogre::Node::TS_LOCAL);
58
59        // Get notification about collisions
60        this->enableCollisionCallback();
61
62        if (this->owner_)
63        {
64            this->setOrientation(this->owner_->getOrientation());
65            this->setPosition(this->owner_->getPosition());
66            this->setVelocity(this->owner_->getInitialDir() * this->speed_);
67        }
68
69        if(!orxonox::Settings::isClient()) //only if not on client
70          this->destroyTimer_.setTimer(this->lifetime_, false, this, createExecutor(createFunctor(&Projectile::destroyObject)));
71    }
72
73    Projectile::~Projectile()
74    {
75    }
76
77    void Projectile::setConfigValues()
78    {
79        SetConfigValue(damage_, 15.0).description("The damage caused by the projectile");
80        SetConfigValue(lifetime_, 4.0).description("The time in seconds a projectile stays alive");
81        SetConfigValue(speed_, 5000.0).description("The speed of a projectile in units per second").callback(this, &Projectile::speedChanged);
82    }
83
84    void Projectile::speedChanged()
85    {
86        Projectile::speed_s = this->speed_;
87        if (this->owner_)
88            this->setVelocity(this->owner_->getInitialDir() * this->speed_);
89    }
90
91    void Projectile::tick(float dt)
92    {
93        SUPER(Projectile, tick, dt);
94
95        if (!this->isActive())
96            return;
97
98        float radius;
99        for (ObjectList<Model>::iterator it = ObjectList<Model>::begin(); it; ++it)
100        {
101//            if ((*it) != this->owner_)
102            {
103                radius = it->getScale3D().x * 3.0;
104
105                if (this->getPosition().squaredDistance(it->getPosition()) <= (radius*radius))
106                {
107                    // hit
108                    ParticleSpawner* explosion = new ParticleSpawner(this->explosionTemplateName_, LODParticle::low, 2.0);
109                    explosion->setPosition(this->getPosition());
110                    explosion->create();
111                    ParticleSpawner* smoke = new ParticleSpawner(this->smokeTemplateName_, LODParticle::normal, 2.0, 0.0);
112                    smoke->setPosition(this->getPosition());
113//                    smoke->getParticleInterface()->setSpeedFactor(3.0);
114                    smoke->create();
115                    delete this;
116                    return;
117                }
118            }
119        }
120    }
121
122    void Projectile::destroyObject()
123    {
124        delete this;
125    }
126
127    bool Projectile::create(){
128      return WorldEntity::create();
129    }
130}
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