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source: code/trunk/src/orxonox/objects/worldentities/Camera.cc @ 3222

Last change on this file since 3222 was 3196, checked in by rgrieder, 15 years ago

Merged pch branch back to trunk.

  • Property svn:eol-style set to native
File size: 4.9 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 *      Fabian 'x3n' Landau
24 *   Co-authors:
25 *      Benjamin Knecht
26 *
27 */
28
29#include "Camera.h"
30
31#include <OgreCamera.h>
32#include <OgreSceneManager.h>
33#include <OgreSceneNode.h>
34
35#include "util/Exception.h"
36#include "util/String.h"
37#include "core/CoreIncludes.h"
38#include "core/ConfigValueIncludes.h"
39#include "objects/Scene.h"
40#include "CameraManager.h"
41
42namespace orxonox
43{
44    CreateFactory(Camera);
45
46    Camera::Camera(BaseObject* creator) : StaticEntity(creator)
47    {
48        RegisterObject(Camera);
49
50        if (!this->getScene())
51            ThrowException(AbortLoading, "Can't create Camera, no scene.");
52        if (!this->getScene()->getSceneManager())
53            ThrowException(AbortLoading, "Can't create Camera, no scene-manager given.");
54        if (!this->getScene()->getRootSceneNode())
55            ThrowException(AbortLoading, "Can't create Camera, no root-scene-node given.");
56
57        this->camera_ = this->getScene()->getSceneManager()->createCamera(getUniqueNumberString());
58        this->cameraNode_ = this->getScene()->getRootSceneNode()->createChildSceneNode();
59        this->attachNode(this->cameraNode_);
60        this->cameraNode_->attachObject(this->camera_);
61
62        this->bHasFocus_ = false;
63        this->bDrag_ = false;
64        this->nearClipDistance_ = 1;
65
66        this->setObjectMode(0x0);
67
68        this->setConfigValues();
69        this->configvaluecallback_changedNearClipDistance();
70    }
71
72    Camera::~Camera()
73    {
74        if (this->isInitialized())
75        {
76            this->releaseFocus();
77
78            this->cameraNode_->detachAllObjects();
79            this->getScene()->getSceneManager()->destroyCamera(this->camera_);
80
81            if (this->bDrag_)
82                this->detachNode(this->cameraNode_);
83
84            if (this->getScene()->getSceneManager())
85                this->getScene()->getSceneManager()->destroySceneNode(this->cameraNode_->getName());
86        }
87    }
88
89    void Camera::setConfigValues()
90    {
91        SetConfigValue(nearClipDistance_, 1.0f).callback(this, &Camera::configvaluecallback_changedNearClipDistance);
92    }
93
94    void Camera::configvaluecallback_changedNearClipDistance()
95    {
96        this->camera_->setNearClipDistance(this->nearClipDistance_);
97    }
98
99    void Camera::tick(float dt)
100    {
101        SUPER(Camera, tick, dt);
102
103        if (this->bDrag_)
104        {
105            // this stuff here may need some adjustments
106            float coeff = min(1.0f, 15.0f * dt);
107
108            Vector3 offset = this->getWorldPosition() - this->cameraNode_->_getDerivedPosition();
109            this->cameraNode_->translate(coeff * offset);
110
111            this->cameraNode_->setOrientation(Quaternion::Slerp(coeff, this->cameraNode_->_getDerivedOrientation(), this->getWorldOrientation(), true));
112            //this->cameraNode_->setOrientation(this->getWorldOrientation());
113        }
114    }
115
116    void Camera::requestFocus()
117    {
118        CameraManager::getInstance().requestFocus(this);
119    }
120
121    void Camera::releaseFocus()
122    {
123        CameraManager::getInstance().releaseFocus(this);
124    }
125
126    /**
127        what to do when camera loses focus (do not request focus in this function!!)
128        this is called by the CameraManager singleton class to notify the camera
129    */
130    void Camera::removeFocus()
131    {
132        this->bHasFocus_ = false;
133    }
134
135    void Camera::setFocus()
136    {
137        this->bHasFocus_ = true;
138        CameraManager::getInstance().useCamera(this->camera_);
139    }
140
141    void Camera::setDrag(bool bDrag)
142    {
143        if (bDrag != this->bDrag_)
144        {
145            this->bDrag_ = bDrag;
146
147            if (!bDrag)
148            {
149                this->attachNode(this->cameraNode_);
150                this->cameraNode_->setPosition(Vector3::ZERO);
151                this->cameraNode_->setOrientation(Quaternion::IDENTITY);
152            }
153            else
154            {
155                this->detachNode(this->cameraNode_);
156                this->cameraNode_->setPosition(this->getWorldPosition());
157                this->cameraNode_->setOrientation(this->getWorldOrientation());
158            }
159        }
160    }
161}
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