[2068] | 1 | |
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| 2 | |
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[4832] | 3 | /* |
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[2068] | 4 | orxonox - the future of 3D-vertical-scrollers |
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| 5 | |
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| 6 | Copyright (C) 2004 orx |
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| 7 | |
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| 8 | This program is free software; you can redistribute it and/or modify |
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| 9 | it under the terms of the GNU General Public License as published by |
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| 10 | the Free Software Foundation; either version 2, or (at your option) |
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| 11 | any later version. |
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| 12 | |
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| 13 | ### File Specific: |
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[2080] | 14 | main-programmer: Christian Meyer |
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[2068] | 15 | co-programmer: ... |
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| 16 | */ |
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| 17 | |
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| 18 | #include "camera.h" |
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[3608] | 19 | |
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[2100] | 20 | #include "world.h" |
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| 21 | #include "world_entity.h" |
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[3608] | 22 | #include "vector.h" |
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[4414] | 23 | #include "event.h" |
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| 24 | #include "event_handler.h" |
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[2068] | 25 | |
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| 26 | using namespace std; |
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| 27 | |
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[3635] | 28 | //////////// |
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| 29 | // CAMERA // |
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| 30 | //////////// |
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| 31 | |
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[2096] | 32 | /** |
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[4836] | 33 | * creates a Camera |
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[2096] | 34 | */ |
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[4746] | 35 | Camera::Camera() |
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[2068] | 36 | { |
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[4320] | 37 | this->setClassID(CL_CAMERA, "Camera"); |
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[3635] | 38 | this->target = new CameraTarget(); |
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[3636] | 39 | |
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[4414] | 40 | EventHandler::getInstance()->subscribe(this, ES_GAME, KeyMapper::PEV_VIEW0); |
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| 41 | EventHandler::getInstance()->subscribe(this, ES_GAME, KeyMapper::PEV_VIEW1); |
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| 42 | EventHandler::getInstance()->subscribe(this, ES_GAME, KeyMapper::PEV_VIEW2); |
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| 43 | EventHandler::getInstance()->subscribe(this, ES_GAME, KeyMapper::PEV_VIEW3); |
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| 44 | EventHandler::getInstance()->subscribe(this, ES_GAME, KeyMapper::PEV_VIEW4); |
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| 45 | EventHandler::getInstance()->subscribe(this, ES_GAME, KeyMapper::PEV_VIEW5); |
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| 46 | |
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[3641] | 47 | this->setFovy(90); |
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[3636] | 48 | this->setAspectRatio(1.2f); |
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| 49 | this->setClipRegion(.1, 2000); |
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[3641] | 50 | |
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[3639] | 51 | this->setViewMode(VIEW_NORMAL); |
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[2068] | 52 | } |
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| 53 | |
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[2096] | 54 | /** |
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[4836] | 55 | * default destructor |
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[2096] | 56 | */ |
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[4746] | 57 | Camera::~Camera() |
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[2068] | 58 | { |
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[3543] | 59 | } |
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| 60 | |
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| 61 | /** |
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[4836] | 62 | * focuses the Camera onto a Target |
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| 63 | * @param target the new PNode the Camera should look at. |
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[2096] | 64 | */ |
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[3635] | 65 | void Camera::lookAt(PNode* target) |
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[2068] | 66 | { |
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[3635] | 67 | this->target->setParent(target); |
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[2068] | 68 | } |
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| 69 | |
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[3638] | 70 | /** |
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[4836] | 71 | * @returns The PNode of the Target (from there you can get position and so on |
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[3638] | 72 | */ |
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[4746] | 73 | PNode* Camera::getTarget() |
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[2068] | 74 | { |
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[3635] | 75 | return (PNode*)this->target; |
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[2068] | 76 | } |
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| 77 | |
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[2096] | 78 | /** |
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[4836] | 79 | * sets a new AspectRatio |
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| 80 | * @param aspectRatio the new aspect ratio to set (width / height) |
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[3636] | 81 | */ |
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| 82 | void Camera::setAspectRatio(float aspectRatio) |
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| 83 | { |
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| 84 | this->aspectRatio = aspectRatio; |
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| 85 | } |
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| 86 | |
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| 87 | /** |
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[4836] | 88 | * sets the Field of View to fofy |
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| 89 | * @param fovy new field of view factor (in degrees) |
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[3636] | 90 | */ |
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| 91 | void Camera::setFovy(float fovy) |
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| 92 | { |
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| 93 | this->fovy = fovy; |
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| 94 | } |
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| 95 | |
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| 96 | /** |
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| 97 | \brief Sets a new clipping region |
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[4836] | 98 | * @param nearClip The near clip plane |
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| 99 | * @param farClip The far clip plane |
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[3636] | 100 | */ |
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| 101 | void Camera::setClipRegion(float nearClip, float farClip) |
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| 102 | { |
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| 103 | this->nearClip = nearClip; |
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| 104 | this->farClip = farClip; |
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| 105 | } |
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| 106 | |
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[4490] | 107 | /** |
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[4836] | 108 | * sets the new VideoMode and initializes iteration to it. |
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| 109 | * @param mode the mode to change to. |
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[4490] | 110 | */ |
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[3639] | 111 | void Camera::setViewMode(ViewMode mode) |
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| 112 | { |
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| 113 | switch (mode) |
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| 114 | { |
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| 115 | default: |
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| 116 | case VIEW_NORMAL: |
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| 117 | this->toFovy = 60.0; |
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[3643] | 118 | this->toRelCoor = Vector(-10, 5, 0); |
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[3639] | 119 | break; |
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| 120 | case VIEW_BEHIND: |
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[3643] | 121 | this->toFovy = 120.0; |
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| 122 | this->toRelCoor = Vector(-7, 0, 0); |
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[3639] | 123 | break; |
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| 124 | case VIEW_FRONT: |
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| 125 | this->toFovy = 95.0; |
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[3643] | 126 | this->toRelCoor = Vector(12, 5, 0); |
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[3639] | 127 | break; |
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[4832] | 128 | case VIEW_LEFT: |
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[3639] | 129 | this->toFovy = 90; |
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[3643] | 130 | this->toRelCoor = Vector(0, 2, -10); |
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[3639] | 131 | break; |
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| 132 | case VIEW_RIGHT: |
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| 133 | this->toFovy = 90; |
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[3643] | 134 | this->toRelCoor = Vector(0, 2, 10); |
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[3639] | 135 | break; |
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[3643] | 136 | case VIEW_TOP: |
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| 137 | this->toFovy= 120; |
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| 138 | this->toRelCoor = Vector(0, 4, 0); |
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[3639] | 139 | } |
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| 140 | } |
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| 141 | |
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| 142 | |
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[3636] | 143 | /** |
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[4836] | 144 | * Updates the position of the camera. |
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| 145 | * @param dt: The time that elapsed. |
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[3639] | 146 | */ |
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| 147 | void Camera::tick(float dt) |
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| 148 | { |
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[3645] | 149 | float tmpFovy = (this->toFovy - this->fovy) * dt; |
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| 150 | if (tmpFovy > .001) |
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| 151 | this->fovy += (this->toFovy - this->fovy) * dt; |
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[3966] | 152 | Vector tmpPos = (this->toRelCoor - this->getRelCoor()) * dt; |
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[3645] | 153 | if (tmpPos.len() >= .001) |
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| 154 | { |
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[3966] | 155 | tmpPos = tmpPos + this->getRelCoor(); |
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[3810] | 156 | this->setRelCoor(tmpPos); |
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[3645] | 157 | } |
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[3639] | 158 | } |
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| 159 | |
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| 160 | |
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| 161 | /** |
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[4836] | 162 | * initialize rendering perspective according to this camera |
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[4832] | 163 | |
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[2551] | 164 | This is called immediately before the rendering cycle starts, it sets all global |
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| 165 | rendering options as well as the GL_PROJECTION matrix according to the camera. |
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[2096] | 166 | */ |
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[2068] | 167 | void Camera::apply () |
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| 168 | { |
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[3636] | 169 | // switching to Projection Matrix |
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[2551] | 170 | glMatrixMode (GL_PROJECTION); |
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[2112] | 171 | glLoadIdentity (); |
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[3635] | 172 | |
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[3636] | 173 | // setting up the perspective |
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| 174 | gluPerspective(this->fovy, |
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[4832] | 175 | this->aspectRatio, |
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| 176 | this->nearClip, |
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| 177 | this->farClip); |
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[3365] | 178 | |
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[3636] | 179 | // speed-up feature |
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[3635] | 180 | Vector cameraPosition = this->getAbsCoor(); |
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| 181 | Vector targetPosition = this->target->getAbsCoor(); |
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[3638] | 182 | Vector up = Vector(0, 1, 0); |
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| 183 | up = this->getAbsDir().apply(up); |
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[2551] | 184 | |
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[3636] | 185 | // Setting the Camera Eye, lookAt and up Vectors |
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[3635] | 186 | gluLookAt(cameraPosition.x, cameraPosition.y, cameraPosition.z, |
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[4832] | 187 | targetPosition.x, targetPosition.y, targetPosition.z, |
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| 188 | up.x, up.y, up.z); |
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[3636] | 189 | |
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| 190 | // switching back to Modeling Matrix |
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[2068] | 191 | glMatrixMode (GL_MODELVIEW); |
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| 192 | } |
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| 193 | |
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[4490] | 194 | /** |
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[4836] | 195 | * processes an event |
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| 196 | * @param event: the event to process |
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[4490] | 197 | */ |
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[4414] | 198 | void Camera::process(const Event &event) |
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| 199 | { |
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| 200 | if( event.type == KeyMapper::PEV_VIEW0) |
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| 201 | { |
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| 202 | this->setViewMode(VIEW_NORMAL); |
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| 203 | } |
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| 204 | else if( event.type == KeyMapper::PEV_VIEW1) |
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| 205 | { |
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| 206 | this->setViewMode(VIEW_BEHIND); |
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| 207 | } |
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| 208 | else if( event.type == KeyMapper::PEV_VIEW2) |
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| 209 | { |
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| 210 | this->setViewMode(VIEW_FRONT); |
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| 211 | } |
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| 212 | else if( event.type == KeyMapper::PEV_VIEW3) |
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| 213 | { |
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| 214 | this->setViewMode(VIEW_LEFT); |
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| 215 | } |
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| 216 | else if( event.type == KeyMapper::PEV_VIEW4) |
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| 217 | { |
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| 218 | this->setViewMode(VIEW_RIGHT); |
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| 219 | } |
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| 220 | else if( event.type == KeyMapper::PEV_VIEW5) |
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| 221 | { |
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| 222 | this->setViewMode(VIEW_TOP); |
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| 223 | } |
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| 224 | } |
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[3365] | 225 | |
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[4414] | 226 | |
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[3635] | 227 | /////////////////// |
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| 228 | // CAMERA-TARGET // |
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| 229 | /////////////////// |
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[2636] | 230 | |
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| 231 | |
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[3635] | 232 | CameraTarget::CameraTarget() |
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[2636] | 233 | { |
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[4320] | 234 | this->setClassID(CL_CAMERA_TARGET, "CameraTarget"); |
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[4444] | 235 | this->setParentMode(PNODE_MOVEMENT); |
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[2636] | 236 | } |
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[3213] | 237 | |
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[3635] | 238 | CameraTarget::~CameraTarget() |
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| 239 | { |
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[3213] | 240 | |
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[3635] | 241 | } |
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