[3246] | 1 | |
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| 2 | |
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| 3 | /* |
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| 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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| 14 | main-programmer: Patrick Boenzli |
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[3551] | 15 | co-programmer: |
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[3365] | 16 | |
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| 17 | \todo Smooth-Parent: delay, speed |
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[3246] | 18 | */ |
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| 19 | |
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| 20 | |
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| 21 | #include "p_node.h" |
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[3543] | 22 | |
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[3521] | 23 | #include "null_parent.h" |
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[3543] | 24 | #include "vector.h" |
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[3246] | 25 | |
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| 26 | using namespace std; |
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| 27 | |
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| 28 | |
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| 29 | /** |
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| 30 | \brief standard constructor |
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| 31 | |
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| 32 | \todo this constructor is not jet implemented - do it |
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| 33 | */ |
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[3365] | 34 | PNode::PNode () |
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| 35 | { |
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[3552] | 36 | init(NULL); |
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[3529] | 37 | |
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| 38 | NullParent* np = NullParent::getInstance(); |
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| 39 | np->addChild(this); |
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[3365] | 40 | } |
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[3246] | 41 | |
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| 42 | |
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| 43 | /** |
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[3365] | 44 | \brief constructor with coodinates |
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[3450] | 45 | \param absCoordinate the Absolute coordinate of the Object |
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| 46 | \param parent The parent-node of this node. |
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[3365] | 47 | */ |
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| 48 | PNode::PNode (Vector* absCoordinate, PNode* parent ) |
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| 49 | { |
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[3552] | 50 | this->init(parent); |
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[3365] | 51 | |
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[3554] | 52 | this->absCoordinate = *absCoordinate; |
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| 53 | if (parent != NULL) |
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| 54 | { |
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| 55 | this->relCoordinate = this->absCoordinate - parent->getAbsCoor (); |
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| 56 | parent->addChild (this); |
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| 57 | } |
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| 58 | else |
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| 59 | this->relCoordinate = Vector(0,0,0); |
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[3365] | 60 | } |
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| 61 | |
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| 62 | /** |
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[3246] | 63 | \brief standard deconstructor |
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| 64 | |
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| 65 | \todo this deconstructor is not jet implemented - do it |
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| 66 | */ |
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[3365] | 67 | PNode::~PNode () |
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| 68 | { |
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| 69 | /* |
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| 70 | delete &this->children; |
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| 71 | delete &this->relCoordinate; |
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| 72 | delete &this->absCoordinate; |
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| 73 | delete &this->relDirection; |
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| 74 | delete &this->absDirection; |
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| 75 | */ |
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[3551] | 76 | //this->parent = NULL; |
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[3365] | 77 | /* there is currently a problem with cleaning up - fix*/ |
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[3531] | 78 | |
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[3551] | 79 | |
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[3544] | 80 | PNode* pn = this->children->enumerate(); |
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| 81 | while( pn != NULL) |
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| 82 | { |
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| 83 | pn = this->children->nextElement(); |
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| 84 | delete pn; |
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[3551] | 85 | } |
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| 86 | |
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[3544] | 87 | /* this deletes all children in the list */ |
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| 88 | delete this->children; |
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| 89 | |
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[3552] | 90 | delete []this->objectName; |
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[3365] | 91 | } |
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[3246] | 92 | |
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[3552] | 93 | void PNode::init(PNode* parent) |
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| 94 | { |
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| 95 | this->children = new tList<PNode>(); |
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| 96 | this->bRelCoorChanged = true; |
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| 97 | this->bAbsCoorChanged = false; |
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| 98 | this->bRelDirChanged = true; |
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| 99 | this->bAbsDirChanged = false; |
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| 100 | this->parent = parent; |
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| 101 | this->objectName = NULL; |
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| 102 | } |
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[3365] | 103 | |
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| 104 | /** |
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| 105 | \brief deletes the hole pnode tree |
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| 106 | |
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| 107 | cleans up all pnodes |
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| 108 | */ |
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[3544] | 109 | /* |
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[3365] | 110 | void PNode::destroy () |
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| 111 | { |
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| 112 | PNode* pn = this->children->enumerate(); |
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| 113 | while( pn != NULL) |
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| 114 | { |
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| 115 | pn->destroy (); |
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| 116 | pn = this->children->nextElement(); |
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| 117 | } |
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[3544] | 118 | // this deletes all children in the list |
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[3365] | 119 | this->children->destroy (); |
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[3531] | 120 | |
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| 121 | static_cast<BaseObject*>(this)->destroy(); |
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[3365] | 122 | } |
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[3544] | 123 | */ |
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[3365] | 124 | |
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| 125 | /** |
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| 126 | \brief get relative coordinates |
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| 127 | \returns relative coordinates to its parent |
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| 128 | */ |
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| 129 | Vector PNode::getRelCoor () |
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| 130 | { |
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| 131 | Vector r = this->relCoordinate; /* return a copy, so it can't be modified */ |
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| 132 | return r; |
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| 133 | } |
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| 134 | |
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| 135 | |
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| 136 | /** |
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| 137 | \brief set relative coordinates |
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[3450] | 138 | \param relCoord relative coordinates to its parent |
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[3365] | 139 | |
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| 140 | it is very importand, that you use this function, if you want to update the |
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| 141 | relCoordinates. If you don't use this, the PNode won't recognize, that something |
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| 142 | has changed and won't update the children Nodes. |
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| 143 | */ |
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| 144 | void PNode::setRelCoor (Vector* relCoord) |
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| 145 | { |
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| 146 | this->bRelCoorChanged = true; |
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| 147 | this->relCoordinate = *relCoord; |
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| 148 | } |
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| 149 | |
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| 150 | |
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| 151 | /** |
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| 152 | \brief get absolute coordinates |
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| 153 | \returns absolute coordinates from (0,0,0) |
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| 154 | */ |
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| 155 | Vector PNode::getAbsCoor () |
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| 156 | { |
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| 157 | return this->absCoordinate; |
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| 158 | } |
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| 159 | |
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| 160 | |
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| 161 | /** |
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[3450] | 162 | \param absCoord set absolute coordinate |
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[3365] | 163 | |
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| 164 | it is very importand, that you use this function, if you want to update the |
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| 165 | absCoordinates. If you don't use this, the PNode won't recognize, that something |
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| 166 | has changed and won't update the children Nodes. |
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| 167 | */ |
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| 168 | void PNode::setAbsCoor (Vector* absCoord) |
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| 169 | { |
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| 170 | this->bAbsCoorChanged = true; |
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| 171 | this->absCoordinate = *absCoord; |
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| 172 | } |
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| 173 | |
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| 174 | |
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| 175 | /** |
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| 176 | \brief shift coordinate (abs and rel) |
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| 177 | \param shift vector |
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| 178 | |
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| 179 | this function shifts the current coordinates about the vector shift. this is |
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| 180 | usefull because from some place else you can: |
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| 181 | PNode* someNode = ...; |
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| 182 | Vector objectMovement = calculateShift(); |
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| 183 | someNode->shiftCoor(objectMovement); |
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| 184 | |
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| 185 | elsewhere you would have to: |
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| 186 | PNode* someNode = ...; |
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| 187 | Vector objectMovement = calculateShift(); |
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| 188 | Vector currentCoor = someNode->getRelCoor(); |
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| 189 | Vector newCoor = currentCoor + objectMovement; |
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| 190 | someNode->setRelCoor(newCoor); |
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| 191 | |
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| 192 | yea right... shorter... |
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| 193 | |
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| 194 | */ |
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| 195 | void PNode::shiftCoor (Vector* shift) |
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| 196 | { |
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| 197 | if( this->bAbsCoorChanged) |
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| 198 | { |
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| 199 | this->absCoordinate = this->absCoordinate + *shift; |
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| 200 | } |
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| 201 | else |
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| 202 | { |
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| 203 | this->relCoordinate = this->relCoordinate + *shift; |
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| 204 | this->bRelCoorChanged = true; |
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| 205 | } |
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| 206 | } |
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| 207 | |
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| 208 | |
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| 209 | |
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| 210 | /** |
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| 211 | \brief get relative direction |
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| 212 | \returns relative direction to its parent |
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| 213 | */ |
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| 214 | Quaternion PNode::getRelDir () |
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| 215 | { |
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| 216 | return this->relDirection; |
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| 217 | } |
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| 218 | |
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| 219 | |
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| 220 | /** |
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| 221 | \brief set relative direction |
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[3450] | 222 | \param relDir to its parent |
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[3365] | 223 | |
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| 224 | it is very importand, that you use this function, if you want to update the |
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| 225 | relDirection. If you don't use this, the PNode won't recognize, that something |
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| 226 | has changed and won't update the children Nodes. |
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| 227 | */ |
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| 228 | void PNode::setRelDir (Quaternion* relDir) |
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| 229 | { |
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| 230 | this->bRelCoorChanged = true; |
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| 231 | this->relDirection = *relDir; |
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| 232 | } |
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| 233 | |
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| 234 | |
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| 235 | /** |
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| 236 | \brief gets the absolute direction (0,0,1) |
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| 237 | \returns absolute coordinates |
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| 238 | */ |
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| 239 | Quaternion PNode::getAbsDir () |
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[3433] | 240 | { |
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| 241 | return this->absDirection; |
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| 242 | } |
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[3365] | 243 | |
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| 244 | |
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| 245 | /** |
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| 246 | \brief sets the absolute direction (0,0,1) |
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[3450] | 247 | \param absDir absolute coordinates |
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[3365] | 248 | |
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| 249 | it is very importand, that you use this function, if you want to update the |
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| 250 | absDirection. If you don't use this, the PNode won't recognize, that something |
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| 251 | has changed and won't update the children Nodes. |
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| 252 | */ |
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| 253 | void PNode::setAbsDir (Quaternion* absDir) |
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[3370] | 254 | { |
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| 255 | this->bAbsDirChanged = true; |
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| 256 | this->absDirection = *absDir; |
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| 257 | } |
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[3365] | 258 | |
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| 259 | |
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| 260 | /** |
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| 261 | \brief shift coordinate (abs and rel) |
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| 262 | \param shift vector |
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| 263 | |
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| 264 | this function shifts the current coordinates about the vector shift. this is |
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| 265 | usefull because from some place else you can: |
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| 266 | PNode* someNode = ...; |
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| 267 | Quaternion objectMovement = calculateShift(); |
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| 268 | someNode->shiftCoor(objectMovement); |
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| 269 | |
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| 270 | elsewhere you would have to: |
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| 271 | PNode* someNode = ...; |
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| 272 | Quaternion objectMovement = calculateShift(); |
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| 273 | Quaternion currentCoor = someNode->getRelCoor(); |
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| 274 | Quaternion newCoor = currentCoor + objectMovement; |
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| 275 | someNode->setRelCoor(newCoor); |
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| 276 | |
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| 277 | yea right... shorter... |
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| 278 | |
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[3450] | 279 | \todo implement this |
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[3365] | 280 | */ |
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| 281 | void PNode::shiftDir (Quaternion* shift) |
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| 282 | {} |
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| 283 | |
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| 284 | /** |
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| 285 | \brief adds a child and makes this node to a parent |
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[3450] | 286 | \param pNode child reference |
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[3365] | 287 | |
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| 288 | use this to add a child to this node. |
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| 289 | */ |
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| 290 | void PNode::addChild (PNode* pNode) |
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| 291 | { |
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| 292 | this->addChild(pNode, DEFAULT_MODE); |
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| 293 | } |
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| 294 | |
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| 295 | |
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| 296 | /** |
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| 297 | \brief adds a child and makes this node to a parent |
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[3450] | 298 | \param pNode child reference |
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| 299 | \param mode on which changes the child should also change ist state |
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[3365] | 300 | |
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| 301 | use this to add a child to this node. |
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| 302 | */ |
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| 303 | void PNode::addChild (PNode* pNode, parentingMode mode) |
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| 304 | { |
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[3529] | 305 | if( pNode->parent != NULL ) |
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[3521] | 306 | { |
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[3529] | 307 | PRINTF(2)("PNode::addChild() - reparenting node: removing it and adding it again\n"); |
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[3547] | 308 | pNode->parent->children->remove(pNode); |
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[3521] | 309 | } |
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[3529] | 310 | pNode->mode = mode; |
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| 311 | pNode->parent = this; |
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| 312 | this->children->add(pNode); |
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[3365] | 313 | } |
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| 314 | |
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| 315 | |
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| 316 | /** |
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[3450] | 317 | \brief removes a child from the node |
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| 318 | \param pNode the child to remove from this pNode. |
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[3547] | 319 | |
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| 320 | Children from pNode will not be lost, they are referenced to NullPointer |
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[3365] | 321 | */ |
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| 322 | void PNode::removeChild (PNode* pNode) |
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| 323 | { |
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[3547] | 324 | pNode->remove(); |
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[3365] | 325 | this->children->remove (pNode); |
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[3521] | 326 | pNode->parent = NULL; |
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[3365] | 327 | } |
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| 328 | |
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| 329 | |
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| 330 | /** |
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[3537] | 331 | \brief remove this pnode from the tree and adds all following to NullParent |
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| 332 | |
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| 333 | this can be the case, if an entity in the world is been destroyed. |
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| 334 | */ |
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| 335 | void PNode::remove() |
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| 336 | { |
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| 337 | NullParent* np = NullParent::getInstance(); |
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| 338 | PNode* pn = this->children->enumerate(); |
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| 339 | while( pn != NULL) |
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| 340 | { |
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| 341 | this->children->remove(pn); |
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| 342 | np->addChild(pn, pn->getMode()); |
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| 343 | pn = this->children->nextElement(); |
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| 344 | } |
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| 345 | } |
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| 346 | |
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| 347 | |
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| 348 | /** |
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[3365] | 349 | \brief sets the parent of this PNode |
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[3450] | 350 | \param parent the Parent to set |
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[3365] | 351 | */ |
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| 352 | void PNode::setParent (PNode* parent) |
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| 353 | { |
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[3511] | 354 | parent->addChild(this); |
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[3365] | 355 | } |
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| 356 | |
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[3535] | 357 | |
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[3365] | 358 | /** |
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| 359 | \brief set the mode of this parent manualy |
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[3450] | 360 | \param mode the mode of the bind-type. |
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[3365] | 361 | */ |
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| 362 | void PNode::setMode (parentingMode mode) |
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| 363 | { |
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| 364 | this->mode = mode; |
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| 365 | } |
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| 366 | |
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[3537] | 367 | |
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[3365] | 368 | /** |
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[3537] | 369 | \brief gets the mode of this parent manualy |
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| 370 | \return the mode of the bind-type. |
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| 371 | */ |
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| 372 | parentingMode PNode::getMode() |
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| 373 | { |
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| 374 | return this->mode; |
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| 375 | } |
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| 376 | |
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| 377 | /** |
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[3365] | 378 | \brief has to be called, if the parent coordinate has changed |
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| 379 | |
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| 380 | normaly this will be done by the parent itself automaticaly. If you call this, you |
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| 381 | will force an update of the coordinated of the node. |
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| 382 | */ |
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| 383 | void PNode::parentCoorChanged () |
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| 384 | { |
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| 385 | this->bRelCoorChanged = true; |
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| 386 | } |
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| 387 | |
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| 388 | |
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| 389 | /** |
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| 390 | \brief has to be called, if the parent direction has changed |
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| 391 | |
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| 392 | normaly this will be done by the parent itself automaticaly. If you call this, you |
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| 393 | will force an update of the direction of the node. |
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| 394 | */ |
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| 395 | void PNode::parentDirChanged () |
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| 396 | { |
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| 397 | this->bRelDirChanged = true; |
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| 398 | } |
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| 399 | |
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| 400 | |
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| 401 | /** |
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| 402 | \brief updates the absCoordinate/absDirection |
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[3450] | 403 | \param timeStamp The timestanp used for to look if calculations should be done |
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[3365] | 404 | |
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| 405 | this is used to go through the parent-tree to update all the absolute coordinates |
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| 406 | and directions. this update should be done by the engine, so you don't have to |
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| 407 | worry, normaly... |
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| 408 | */ |
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[3551] | 409 | void PNode::update () |
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[3365] | 410 | { |
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[3546] | 411 | PRINTF(2)("PNode::update - %s - (%f, %f, %f)\n", this->objectName, this->absCoordinate.x, this->absCoordinate.y, this->absCoordinate.z); |
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[3529] | 412 | // printf("%s", this->objectName); |
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[3365] | 413 | |
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[3534] | 414 | if( this->mode == MOVEMENT ) |
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[3365] | 415 | { |
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| 416 | if( this->bAbsCoorChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 417 | { |
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| 418 | /* if you have set the absolute coordinates this overrides all other changes */ |
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| 419 | this->relCoordinate = this->absCoordinate - parent->getAbsCoor (); |
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| 420 | } |
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| 421 | else if( this->bRelCoorChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 422 | { |
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| 423 | /*this is bad style... must be deleted later - just for testing*/ |
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| 424 | if( this->parent == NULL) |
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| 425 | { |
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| 426 | this->absCoordinate = this->relCoordinate; |
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| 427 | } |
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| 428 | else |
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[3521] | 429 | this->absCoordinate = parent->getAbsCoor() + this->relCoordinate; /* update the current absCoordinate */ |
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[3365] | 430 | } |
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| 431 | } |
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| 432 | |
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[3521] | 433 | if( this->mode == ROTATION || this->mode == ALL) |
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[3365] | 434 | { |
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| 435 | if( this->bAbsDirChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 436 | { |
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| 437 | /* if you have set the absolute coordinates this overrides all other changes */ |
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[3521] | 438 | this->relDirection = this->absDirection - parent->getAbsDir(); |
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[3365] | 439 | } |
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| 440 | else if( this->bRelDirChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 441 | { |
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| 442 | /* update the current absDirection - remember * means rotation around sth.*/ |
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[3521] | 443 | this->absDirection = parent->getAbsDir() * this->relDirection; |
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[3365] | 444 | } |
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[3534] | 445 | } |
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| 446 | |
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| 447 | if( this->mode == ALL) |
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| 448 | { |
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| 449 | if( this->bAbsCoorChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 450 | { |
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| 451 | /* if you have set the absolute coordinates this overrides all other changes */ |
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| 452 | this->relCoordinate = this->absCoordinate - parent->getAbsCoor (); |
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| 453 | } |
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| 454 | else if( this->bRelCoorChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 455 | { |
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| 456 | /*this is bad style... must be deleted later - just for testing*/ |
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| 457 | if( this->parent == NULL) |
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| 458 | this->absCoordinate = this->relCoordinate; |
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| 459 | else |
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| 460 | this->absCoordinate = parent->getAbsCoor() + parent->getAbsDir().apply(this->relCoordinate); /* update the current absCoordinate */ |
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| 461 | } |
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| 462 | } |
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| 463 | |
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| 464 | |
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[3365] | 465 | PNode* pn = this->children->enumerate(); |
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| 466 | while( pn != NULL) |
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| 467 | { |
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| 468 | /* if this node has changed, make sure, that all children are updated also */ |
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| 469 | if( this->bRelCoorChanged || this->bAbsCoorChanged) |
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| 470 | pn->parentCoorChanged (); |
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| 471 | if( this->bRelDirChanged || this->bAbsDirChanged) |
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| 472 | pn->parentDirChanged (); |
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[3551] | 473 | pn->update(); |
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[3365] | 474 | pn = this->children->nextElement(); |
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| 475 | } |
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| 476 | |
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| 477 | this->timeStamp = timeStamp; |
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| 478 | this->bRelCoorChanged = false; |
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| 479 | this->bAbsCoorChanged = false; |
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| 480 | this->bRelDirChanged = false; |
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| 481 | this->bAbsDirChanged = false; |
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| 482 | } |
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| 483 | |
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| 484 | |
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[3450] | 485 | /** |
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[3365] | 486 | \brief tick |
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[3450] | 487 | \param dt time to tick |
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[3365] | 488 | */ |
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| 489 | void PNode::processTick (float dt) |
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| 490 | { |
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[3551] | 491 | //this->tick (dt); |
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[3365] | 492 | PNode* pn = this->children->enumerate(); |
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| 493 | while( pn != NULL) |
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| 494 | { |
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| 495 | pn->processTick (dt); |
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| 496 | pn = this->children->nextElement(); |
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| 497 | } |
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| 498 | } |
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| 499 | |
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| 500 | |
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[3450] | 501 | /** |
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| 502 | \brief displays some information about this pNode |
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| 503 | */ |
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[3365] | 504 | void PNode::debug() |
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| 505 | { |
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[3546] | 506 | PRINTF(2)("PNode::debug() - absCoord: (%f, %f, %f)\n", |
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[3365] | 507 | this->absCoordinate.x, |
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| 508 | this->absCoordinate.y, |
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| 509 | this->absCoordinate.z); |
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| 510 | } |
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| 511 | |
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| 512 | |
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[3450] | 513 | /** |
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[3365] | 514 | \brief set the name of the node |
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| 515 | |
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| 516 | for debug purposes realy usefull, not used to work properly |
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| 517 | */ |
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| 518 | void PNode::setName (char* newName) |
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| 519 | { |
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[3552] | 520 | this->objectName = new char[strlen(newName)+1]; |
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| 521 | strcpy(this->objectName,newName); |
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[3365] | 522 | } |
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| 523 | |
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| 524 | |
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[3450] | 525 | /** |
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[3365] | 526 | \brief gets the name of the node |
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| 527 | */ |
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| 528 | char* PNode::getName () |
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| 529 | { |
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| 530 | return this->objectName; |
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| 531 | } |
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[3521] | 532 | |
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