1 | /* |
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2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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3 | * > www.orxonox.net < |
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4 | * |
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5 | * |
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6 | * License notice: |
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7 | * |
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8 | * This program is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the GNU General Public License |
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10 | * as published by the Free Software Foundation; either version 2 |
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11 | * of the License, or (at your option) any later version. |
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12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program; if not, write to the Free Software |
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20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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21 | * |
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22 | * Author: |
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23 | * Fabian 'x3n' Landau |
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24 | * Co-authors: |
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25 | * ... |
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26 | * |
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27 | */ |
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28 | |
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29 | /** |
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30 | @file |
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31 | @brief Implementation of the ObjectListBase class. |
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32 | |
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33 | The ObjectListBase is a double-linked list, used by Identifiers to store all objects of a given class. |
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34 | Newly created objects are added through the RegisterObject-macro in its constructor. |
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35 | */ |
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36 | |
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37 | #include <set> |
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38 | |
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39 | #include "CorePrereqs.h" |
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40 | |
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41 | #include "ObjectListBase.h" |
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42 | #include "Identifier.h" |
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43 | #include "Iterator.h" |
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44 | |
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45 | namespace orxonox |
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46 | { |
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47 | /** |
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48 | @brief Constructor: Sets default values. |
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49 | */ |
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50 | ObjectListBase::ObjectListBase(Identifier* identifier) |
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51 | { |
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52 | this->identifier_ = identifier; |
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53 | this->first_ = 0; |
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54 | this->last_ = 0; |
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55 | } |
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56 | |
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57 | /** |
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58 | @brief Destructor: Deletes all list-elements, but NOT THE OBJECTS. |
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59 | */ |
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60 | ObjectListBase::~ObjectListBase() |
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61 | { |
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62 | ObjectListBaseElement* temp; |
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63 | while (this->first_) |
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64 | { |
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65 | temp = this->first_->next_; |
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66 | delete this->first_; |
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67 | this->first_ = temp; |
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68 | } |
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69 | } |
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70 | |
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71 | /** |
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72 | @brief Increases all Iterators that currently point on the given element (because it gets removed). |
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73 | @param element The element that gets removed |
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74 | */ |
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75 | void ObjectListBase::notifyIterators(OrxonoxClass* object) const |
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76 | { |
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77 | for (std::list<void*>::const_iterator it = this->iterators_.begin(); it != this->iterators_.end(); ++it) |
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78 | ((Iterator<OrxonoxClass>*)(*it))->incrementIfEqual(object); |
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79 | for (std::list<void*>::const_iterator it = this->objectListIterators_.begin(); it != this->objectListIterators_.end(); ++it) |
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80 | ((ObjectListIterator<OrxonoxClass>*)(*it))->incrementIfEqual(object); |
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81 | } |
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82 | |
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83 | /** |
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84 | @brief Adds a new object to the end of the list. |
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85 | @param object The object to add |
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86 | @return The pointer to the new ObjectListBaseElement, needed by the MetaObjectList of the added object |
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87 | */ |
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88 | ObjectListBaseElement* ObjectListBase::add(ObjectListBaseElement* element) |
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89 | { |
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90 | if (!this->last_) |
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91 | { |
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92 | // If the list is empty |
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93 | this->last_ = element; |
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94 | this->first_ = this->last_; // There's only one object in the list now |
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95 | } |
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96 | else |
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97 | { |
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98 | // If the list isn't empty |
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99 | ObjectListBaseElement* temp = this->last_; |
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100 | this->last_ = element; |
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101 | this->last_->prev_ = temp; |
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102 | temp->next_ = this->last_; |
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103 | } |
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104 | |
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105 | return this->last_; |
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106 | } |
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107 | } |
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