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source: code/trunk/src/modules/objects/ForceField.cc @ 7611

Last change on this file since 7611 was 5781, checked in by rgrieder, 15 years ago

Reverted trunk again. We might want to find a way to delete these revisions again (x3n's changes are still available as diff in the commit mails).

  • Property svn:eol-style set to native
File size: 2.9 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 *      Aurelian Jaggi
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29#include "ForceField.h"
30
31#include "core/CoreIncludes.h"
32#include "core/XMLPort.h"
33#include "worldentities/MobileEntity.h"
34
35namespace orxonox
36{
37    CreateFactory(ForceField);
38
39    ForceField::ForceField(BaseObject* creator) : StaticEntity(creator)
40    {
41        RegisterObject(ForceField);
42
43        //Standard Values
44        this->setDirection(Vector3::ZERO);
45        velocity_ = 100;
46        diameter_ = 500;
47        length_ = 5000;
48    }
49
50    ForceField::~ForceField() {}
51
52    void ForceField::XMLPort(Element& xmlelement, XMLPort::Mode mode)
53    {
54        SUPER(ForceField, XMLPort, xmlelement, mode);
55
56        //For correct xml import use: position, direction, velocity, scale
57        XMLPortParam(ForceField, "velocity", setVelocity, getVelocity, xmlelement, mode).defaultValues(100);
58        XMLPortParam(ForceField, "diameter", setDiameter, getDiameter, xmlelement, mode).defaultValues(500);
59        XMLPortParam(ForceField, "length"  , setLength  , getLength  , xmlelement, mode).defaultValues(2000);
60    }
61
62    void ForceField::tick(float dt)
63    {
64        for (ObjectList<MobileEntity>::iterator it = ObjectList<MobileEntity>::begin(); it != ObjectList<MobileEntity>::end(); ++it)
65        {
66            //calculate from
67            Vector3 directionVec = this->getOrientation() * WorldEntity::FRONT;
68            directionVec.normalise();
69
70            Vector3 distanceVec = it->getWorldPosition() - (this->getWorldPosition() + (this->length_ / 2 * directionVec));
71
72            //distance from centervector of the field (
73            float distFromCenterVec = ((it->getWorldPosition() - this->getWorldPosition()).crossProduct(directionVec)).length();
74
75            if (distanceVec.length() < this->length_ / 2 && distFromCenterVec < diameter_ / 2)
76            {
77                //normalize distance from center
78                it->applyCentralForce(((diameter_ / 2 - distFromCenterVec) / (diameter_ / 2)) * directionVec * velocity_);
79            }
80        }
81    }
82}
83
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