[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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| 15 | co-programmer: ... |
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[3365] | 16 | |
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| 17 | \todo Null-Parent => center of the coord system - singleton |
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| 18 | \todo Smooth-Parent: delay, speed |
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| 19 | \todo destroy the stuff again, delete... |
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[3246] | 20 | */ |
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| 21 | |
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| 22 | |
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| 23 | #include "p_node.h" |
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[3521] | 24 | #include "null_parent.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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| 36 | this->children = new tList<PNode>(); |
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| 37 | this->bRelCoorChanged = true; |
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| 38 | this->bAbsCoorChanged = false; |
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| 39 | this->bRelDirChanged = true; |
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| 40 | this->bAbsDirChanged = false; |
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| 41 | this->parent = NULL; |
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[3529] | 42 | |
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| 43 | printf("PNode::PNode() - constructor, now adding\n"); |
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| 44 | NullParent* np = NullParent::getInstance(); |
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| 45 | np->addChild(this); |
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| 46 | printf("PNode::PNode() - finished adding\n"); |
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[3365] | 47 | } |
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[3246] | 48 | |
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| 49 | |
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| 50 | /** |
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[3365] | 51 | \brief constructor with coodinates |
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[3450] | 52 | \param absCoordinate the Absolute coordinate of the Object |
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| 53 | \param parent The parent-node of this node. |
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[3365] | 54 | */ |
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| 55 | PNode::PNode (Vector* absCoordinate, PNode* parent ) |
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| 56 | { |
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| 57 | this->absCoordinate = *absCoordinate; |
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| 58 | this->relCoordinate = this->absCoordinate - parent->getAbsCoor (); |
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| 59 | |
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| 60 | this->children = new tList<PNode>(); |
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| 61 | this->bRelCoorChanged = true; |
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| 62 | this->bAbsCoorChanged = false; |
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| 63 | this->bRelDirChanged = true; |
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| 64 | this->bAbsDirChanged = false; |
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| 65 | this->parent = parent; |
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| 66 | |
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| 67 | parent->addChild (this); |
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| 68 | } |
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| 69 | |
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| 70 | |
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| 71 | /** |
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[3529] | 72 | \brief this constructor is very special. |
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| 73 | \param with the name of the class |
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| 74 | |
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| 75 | this constuctor exists, because there was a little issue with a |
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| 76 | PNode<->NullPointer relation. It is crutial, that this construcor |
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| 77 | exists, and is never used except from the NullParent itself. If you |
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| 78 | delete it, there will probably be a endless loop, because in the |
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| 79 | default constcutor of PNode NullPointer is generated, and NullPointer |
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| 80 | gerenates itself again and again... |
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| 81 | dont't think about it... |
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| 82 | \todo patrick think about this one here... |
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| 83 | */ |
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| 84 | PNode::PNode(char* name) |
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| 85 | { |
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| 86 | printf("PNode::PNode(char*) - start\n"); |
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| 87 | this->children = new tList<PNode>(); |
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| 88 | this->bRelCoorChanged = true; |
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| 89 | this->bAbsCoorChanged = false; |
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| 90 | this->bRelDirChanged = true; |
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| 91 | this->bAbsDirChanged = false; |
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| 92 | this->parent = NULL; |
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| 93 | printf("PNode::PNode(char*) - end\n"); |
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| 94 | } |
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| 95 | |
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| 96 | /** |
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[3246] | 97 | \brief standard deconstructor |
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| 98 | |
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| 99 | \todo this deconstructor is not jet implemented - do it |
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| 100 | */ |
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[3365] | 101 | PNode::~PNode () |
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| 102 | { |
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| 103 | /* |
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| 104 | delete &this->children; |
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| 105 | delete &this->relCoordinate; |
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| 106 | delete &this->absCoordinate; |
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| 107 | delete &this->relDirection; |
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| 108 | delete &this->absDirection; |
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| 109 | */ |
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| 110 | this->parent = NULL; |
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| 111 | /* there is currently a problem with cleaning up - fix*/ |
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[3531] | 112 | |
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| 113 | this->destroy(); |
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[3365] | 114 | } |
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[3246] | 115 | |
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[3365] | 116 | |
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| 117 | /** |
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| 118 | \brief deletes the hole pnode tree |
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| 119 | |
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| 120 | cleans up all pnodes |
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| 121 | */ |
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| 122 | void PNode::destroy () |
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| 123 | { |
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| 124 | PNode* pn = this->children->enumerate(); |
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| 125 | while( pn != NULL) |
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| 126 | { |
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| 127 | pn->destroy (); |
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| 128 | pn = this->children->nextElement(); |
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| 129 | } |
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[3529] | 130 | /* this deletes all children in the list */ |
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[3365] | 131 | this->children->destroy (); |
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[3531] | 132 | |
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| 133 | static_cast<BaseObject*>(this)->destroy(); |
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[3365] | 134 | } |
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| 135 | |
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| 136 | |
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| 137 | /** |
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| 138 | \brief get relative coordinates |
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| 139 | \returns relative coordinates to its parent |
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| 140 | */ |
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| 141 | Vector PNode::getRelCoor () |
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| 142 | { |
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| 143 | Vector r = this->relCoordinate; /* return a copy, so it can't be modified */ |
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| 144 | return r; |
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| 145 | } |
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| 146 | |
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| 147 | |
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| 148 | /** |
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| 149 | \brief set relative coordinates |
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[3450] | 150 | \param relCoord relative coordinates to its parent |
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[3365] | 151 | |
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| 152 | it is very importand, that you use this function, if you want to update the |
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| 153 | relCoordinates. If you don't use this, the PNode won't recognize, that something |
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| 154 | has changed and won't update the children Nodes. |
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| 155 | */ |
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| 156 | void PNode::setRelCoor (Vector* relCoord) |
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| 157 | { |
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| 158 | this->bRelCoorChanged = true; |
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| 159 | this->relCoordinate = *relCoord; |
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| 160 | } |
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| 161 | |
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| 162 | |
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| 163 | /** |
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| 164 | \brief get absolute coordinates |
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| 165 | \returns absolute coordinates from (0,0,0) |
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| 166 | */ |
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| 167 | Vector PNode::getAbsCoor () |
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| 168 | { |
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| 169 | return this->absCoordinate; |
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| 170 | } |
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| 171 | |
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| 172 | |
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| 173 | /** |
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[3450] | 174 | \param absCoord set absolute coordinate |
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[3365] | 175 | |
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| 176 | it is very importand, that you use this function, if you want to update the |
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| 177 | absCoordinates. If you don't use this, the PNode won't recognize, that something |
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| 178 | has changed and won't update the children Nodes. |
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| 179 | */ |
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| 180 | void PNode::setAbsCoor (Vector* absCoord) |
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| 181 | { |
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| 182 | this->bAbsCoorChanged = true; |
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| 183 | this->absCoordinate = *absCoord; |
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| 184 | } |
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| 185 | |
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| 186 | |
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| 187 | /** |
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| 188 | \brief shift coordinate (abs and rel) |
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| 189 | \param shift vector |
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| 190 | |
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| 191 | this function shifts the current coordinates about the vector shift. this is |
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| 192 | usefull because from some place else you can: |
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| 193 | PNode* someNode = ...; |
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| 194 | Vector objectMovement = calculateShift(); |
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| 195 | someNode->shiftCoor(objectMovement); |
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| 196 | |
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| 197 | elsewhere you would have to: |
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| 198 | PNode* someNode = ...; |
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| 199 | Vector objectMovement = calculateShift(); |
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| 200 | Vector currentCoor = someNode->getRelCoor(); |
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| 201 | Vector newCoor = currentCoor + objectMovement; |
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| 202 | someNode->setRelCoor(newCoor); |
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| 203 | |
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| 204 | yea right... shorter... |
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| 205 | |
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| 206 | */ |
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| 207 | void PNode::shiftCoor (Vector* shift) |
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| 208 | { |
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| 209 | if( this->bAbsCoorChanged) |
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| 210 | { |
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| 211 | this->absCoordinate = this->absCoordinate + *shift; |
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| 212 | } |
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| 213 | else |
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| 214 | { |
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| 215 | this->relCoordinate = this->relCoordinate + *shift; |
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| 216 | this->bRelCoorChanged = true; |
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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 | |
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| 222 | /** |
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| 223 | \brief get relative direction |
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| 224 | \returns relative direction to its parent |
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| 225 | */ |
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| 226 | Quaternion PNode::getRelDir () |
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| 227 | { |
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| 228 | return this->relDirection; |
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| 229 | } |
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| 230 | |
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| 231 | |
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| 232 | /** |
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| 233 | \brief set relative direction |
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[3450] | 234 | \param relDir to its parent |
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[3365] | 235 | |
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| 236 | it is very importand, that you use this function, if you want to update the |
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| 237 | relDirection. If you don't use this, the PNode won't recognize, that something |
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| 238 | has changed and won't update the children Nodes. |
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| 239 | */ |
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| 240 | void PNode::setRelDir (Quaternion* relDir) |
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| 241 | { |
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| 242 | this->bRelCoorChanged = true; |
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| 243 | this->relDirection = *relDir; |
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| 244 | } |
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| 245 | |
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| 246 | |
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| 247 | /** |
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| 248 | \brief gets the absolute direction (0,0,1) |
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| 249 | \returns absolute coordinates |
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| 250 | */ |
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| 251 | Quaternion PNode::getAbsDir () |
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[3433] | 252 | { |
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| 253 | return this->absDirection; |
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| 254 | } |
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[3365] | 255 | |
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| 256 | |
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| 257 | /** |
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| 258 | \brief sets the absolute direction (0,0,1) |
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[3450] | 259 | \param absDir absolute coordinates |
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[3365] | 260 | |
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| 261 | it is very importand, that you use this function, if you want to update the |
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| 262 | absDirection. If you don't use this, the PNode won't recognize, that something |
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| 263 | has changed and won't update the children Nodes. |
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| 264 | */ |
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| 265 | void PNode::setAbsDir (Quaternion* absDir) |
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[3370] | 266 | { |
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| 267 | this->bAbsDirChanged = true; |
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| 268 | this->absDirection = *absDir; |
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| 269 | } |
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[3365] | 270 | |
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| 271 | |
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| 272 | /** |
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| 273 | \brief shift coordinate (abs and rel) |
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| 274 | \param shift vector |
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| 275 | |
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| 276 | this function shifts the current coordinates about the vector shift. this is |
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| 277 | usefull because from some place else you can: |
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| 278 | PNode* someNode = ...; |
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| 279 | Quaternion objectMovement = calculateShift(); |
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| 280 | someNode->shiftCoor(objectMovement); |
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| 281 | |
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| 282 | elsewhere you would have to: |
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| 283 | PNode* someNode = ...; |
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| 284 | Quaternion objectMovement = calculateShift(); |
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| 285 | Quaternion currentCoor = someNode->getRelCoor(); |
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| 286 | Quaternion newCoor = currentCoor + objectMovement; |
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| 287 | someNode->setRelCoor(newCoor); |
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| 288 | |
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| 289 | yea right... shorter... |
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| 290 | |
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[3450] | 291 | \todo implement this |
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[3365] | 292 | */ |
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| 293 | void PNode::shiftDir (Quaternion* shift) |
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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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[3365] | 299 | |
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| 300 | use this to add a child to this node. |
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| 301 | */ |
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| 302 | void PNode::addChild (PNode* pNode) |
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| 303 | { |
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| 304 | this->addChild(pNode, DEFAULT_MODE); |
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| 305 | } |
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| 306 | |
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| 307 | |
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| 308 | /** |
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| 309 | \brief adds a child and makes this node to a parent |
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[3450] | 310 | \param pNode child reference |
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| 311 | \param mode on which changes the child should also change ist state |
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[3365] | 312 | |
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| 313 | use this to add a child to this node. |
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| 314 | */ |
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| 315 | void PNode::addChild (PNode* pNode, parentingMode mode) |
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| 316 | { |
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[3529] | 317 | if( pNode->parent != NULL ) |
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[3521] | 318 | { |
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[3529] | 319 | printf("PNode::addChild() - removing child from old parent \n"); |
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| 320 | PRINTF(2)("PNode::addChild() - reparenting node: removing it and adding it again\n"); |
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| 321 | pNode->parent->removeChild(pNode); |
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[3521] | 322 | } |
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[3529] | 323 | pNode->mode = mode; |
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| 324 | pNode->parent = this; |
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| 325 | this->children->add(pNode); |
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| 326 | printf("PNode::addChild() - Parent added\n"); |
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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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[3450] | 331 | \brief removes a child from the node |
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| 332 | \param pNode the child to remove from this pNode. |
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[3365] | 333 | */ |
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| 334 | void PNode::removeChild (PNode* pNode) |
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| 335 | { |
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[3537] | 336 | /* |
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| 337 | PNode* pn = this->children->enumerate(); |
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| 338 | while( pn != NULL) |
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| 339 | { |
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| 340 | this->removeChild(pn); |
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| 341 | np->addChild(pn, pn->getMode()); |
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| 342 | pn = this->children->nextElement(); |
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| 343 | } |
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| 344 | |
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| 345 | */ |
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| 346 | |
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[3365] | 347 | this->children->remove (pNode); |
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[3521] | 348 | pNode->parent = NULL; |
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[3365] | 349 | } |
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| 350 | |
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| 351 | |
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| 352 | /** |
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[3537] | 353 | \brief remove this pnode from the tree and adds all following to NullParent |
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| 354 | |
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| 355 | this can be the case, if an entity in the world is been destroyed. |
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| 356 | */ |
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| 357 | void PNode::remove() |
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| 358 | { |
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| 359 | NullParent* np = NullParent::getInstance(); |
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| 360 | PNode* pn = this->children->enumerate(); |
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| 361 | while( pn != NULL) |
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| 362 | { |
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| 363 | this->children->remove(pn); |
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| 364 | np->addChild(pn, pn->getMode()); |
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| 365 | pn = this->children->nextElement(); |
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| 366 | } |
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| 367 | } |
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| 368 | |
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| 369 | |
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| 370 | /** |
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[3365] | 371 | \brief sets the parent of this PNode |
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[3450] | 372 | \param parent the Parent to set |
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[3365] | 373 | */ |
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| 374 | void PNode::setParent (PNode* parent) |
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| 375 | { |
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[3511] | 376 | parent->addChild(this); |
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[3365] | 377 | } |
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| 378 | |
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[3535] | 379 | |
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[3365] | 380 | /** |
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| 381 | \brief set the mode of this parent manualy |
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[3450] | 382 | \param mode the mode of the bind-type. |
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[3365] | 383 | */ |
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| 384 | void PNode::setMode (parentingMode mode) |
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| 385 | { |
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| 386 | this->mode = mode; |
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| 387 | } |
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| 388 | |
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[3537] | 389 | |
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[3365] | 390 | /** |
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[3537] | 391 | \brief gets the mode of this parent manualy |
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| 392 | \return the mode of the bind-type. |
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| 393 | */ |
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| 394 | parentingMode PNode::getMode() |
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| 395 | { |
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| 396 | return this->mode; |
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| 397 | } |
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| 398 | |
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| 399 | /** |
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[3365] | 400 | \brief has to be called, if the parent coordinate has changed |
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| 401 | |
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| 402 | normaly this will be done by the parent itself automaticaly. If you call this, you |
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| 403 | will force an update of the coordinated of the node. |
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| 404 | */ |
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| 405 | void PNode::parentCoorChanged () |
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| 406 | { |
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| 407 | this->bRelCoorChanged = true; |
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| 408 | } |
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| 409 | |
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| 410 | |
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| 411 | /** |
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| 412 | \brief has to be called, if the parent direction has changed |
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| 413 | |
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| 414 | normaly this will be done by the parent itself automaticaly. If you call this, you |
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| 415 | will force an update of the direction of the node. |
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| 416 | */ |
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| 417 | void PNode::parentDirChanged () |
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| 418 | { |
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| 419 | this->bRelDirChanged = true; |
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| 420 | } |
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| 421 | |
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| 422 | |
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| 423 | /** |
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| 424 | \brief updates the absCoordinate/absDirection |
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[3450] | 425 | \param timeStamp The timestanp used for to look if calculations should be done |
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[3365] | 426 | |
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| 427 | this is used to go through the parent-tree to update all the absolute coordinates |
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| 428 | and directions. this update should be done by the engine, so you don't have to |
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| 429 | worry, normaly... |
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| 430 | */ |
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| 431 | void PNode::update (float timeStamp) |
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| 432 | { |
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[3529] | 433 | //printf ("PNode::update - %s - (%f, %f, %f)\n", this->objectName, this->absCoordinate.x, this->absCoordinate.y, this->absCoordinate.z); |
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| 434 | // printf("%s", this->objectName); |
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[3365] | 435 | |
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[3534] | 436 | if( this->mode == MOVEMENT ) |
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[3365] | 437 | { |
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| 438 | if( this->bAbsCoorChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 439 | { |
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| 440 | printf("PNode::update () - this->bAbsCoorChanged = true\n"); |
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| 441 | /* if you have set the absolute coordinates this overrides all other changes */ |
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| 442 | this->relCoordinate = this->absCoordinate - parent->getAbsCoor (); |
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| 443 | } |
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| 444 | else if( this->bRelCoorChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 445 | { |
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| 446 | /*this is bad style... must be deleted later - just for testing*/ |
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| 447 | if( this->parent == NULL) |
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| 448 | { |
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| 449 | this->absCoordinate = this->relCoordinate; |
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| 450 | } |
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| 451 | else |
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[3521] | 452 | this->absCoordinate = parent->getAbsCoor() + this->relCoordinate; /* update the current absCoordinate */ |
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[3365] | 453 | } |
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| 454 | } |
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| 455 | |
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[3521] | 456 | if( this->mode == ROTATION || this->mode == ALL) |
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[3365] | 457 | { |
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| 458 | if( this->bAbsDirChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 459 | { |
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| 460 | /* if you have set the absolute coordinates this overrides all other changes */ |
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[3521] | 461 | this->relDirection = this->absDirection - parent->getAbsDir(); |
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[3365] | 462 | } |
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| 463 | else if( this->bRelDirChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 464 | { |
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| 465 | /* update the current absDirection - remember * means rotation around sth.*/ |
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[3521] | 466 | this->absDirection = parent->getAbsDir() * this->relDirection; |
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[3365] | 467 | } |
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[3534] | 468 | } |
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| 469 | |
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| 470 | if( this->mode == ALL) |
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| 471 | { |
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| 472 | if( this->bAbsCoorChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 473 | { |
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| 474 | printf("PNode::update () - this->bAbsCoorChanged = true\n"); |
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| 475 | /* if you have set the absolute coordinates this overrides all other changes */ |
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| 476 | this->relCoordinate = this->absCoordinate - parent->getAbsCoor (); |
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| 477 | } |
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| 478 | else if( this->bRelCoorChanged /*&& this->timeStamp != DataTank::timeStamp*/) |
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| 479 | { |
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| 480 | /*this is bad style... must be deleted later - just for testing*/ |
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| 481 | if( this->parent == NULL) |
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| 482 | this->absCoordinate = this->relCoordinate; |
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| 483 | else |
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| 484 | this->absCoordinate = parent->getAbsCoor() + parent->getAbsDir().apply(this->relCoordinate); /* update the current absCoordinate */ |
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| 485 | } |
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| 486 | } |
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| 487 | |
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| 488 | |
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[3365] | 489 | PNode* pn = this->children->enumerate(); |
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| 490 | while( pn != NULL) |
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| 491 | { |
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| 492 | /* if this node has changed, make sure, that all children are updated also */ |
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| 493 | if( this->bRelCoorChanged || this->bAbsCoorChanged) |
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| 494 | pn->parentCoorChanged (); |
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| 495 | if( this->bRelDirChanged || this->bAbsDirChanged) |
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| 496 | pn->parentDirChanged (); |
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| 497 | pn->update(timeStamp); |
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| 498 | pn = this->children->nextElement(); |
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| 499 | } |
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| 500 | |
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| 501 | this->timeStamp = timeStamp; |
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| 502 | this->bRelCoorChanged = false; |
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| 503 | this->bAbsCoorChanged = false; |
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| 504 | this->bRelDirChanged = false; |
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| 505 | this->bAbsDirChanged = false; |
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| 506 | } |
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| 507 | |
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| 508 | |
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[3450] | 509 | /** |
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[3365] | 510 | \brief tick |
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[3450] | 511 | \param dt time to tick |
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[3365] | 512 | */ |
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| 513 | void PNode::processTick (float dt) |
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| 514 | { |
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| 515 | this->tick (dt); |
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| 516 | PNode* pn = this->children->enumerate(); |
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| 517 | while( pn != NULL) |
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| 518 | { |
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| 519 | pn->processTick (dt); |
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| 520 | pn = this->children->nextElement(); |
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| 521 | } |
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| 522 | } |
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| 523 | |
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[3450] | 524 | /** |
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| 525 | \param dt time to tick |
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| 526 | */ |
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[3365] | 527 | void PNode::tick (float dt) |
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| 528 | {} |
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| 529 | |
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[3450] | 530 | /** |
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| 531 | \brief displays some information about this pNode |
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| 532 | */ |
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[3365] | 533 | void PNode::debug() |
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| 534 | { |
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| 535 | printf("PNode::debug() - absCoord: (%f, %f, %f)\n", |
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| 536 | this->absCoordinate.x, |
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| 537 | this->absCoordinate.y, |
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| 538 | this->absCoordinate.z); |
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| 539 | } |
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| 540 | |
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| 541 | |
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[3450] | 542 | /** |
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[3365] | 543 | \brief set the name of the node |
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| 544 | |
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| 545 | for debug purposes realy usefull, not used to work properly |
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| 546 | */ |
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| 547 | void PNode::setName (char* newName) |
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| 548 | { |
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| 549 | this->objectName = newName; |
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| 550 | } |
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| 551 | |
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| 552 | |
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[3450] | 553 | /** |
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[3365] | 554 | \brief gets the name of the node |
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| 555 | */ |
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| 556 | char* PNode::getName () |
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| 557 | { |
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| 558 | return this->objectName; |
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| 559 | } |
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[3521] | 560 | |
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