[1505] | 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 BaseObject class. |
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| 32 | */ |
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| 33 | |
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| 34 | #include "BaseObject.h" |
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[5781] | 35 | |
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| 36 | #include <tinyxml/tinyxml.h> |
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| 37 | |
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[1505] | 38 | #include "CoreIncludes.h" |
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[5781] | 39 | #include "Event.h" |
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| 40 | #include "EventIncludes.h" |
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| 41 | #include "Template.h" |
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| 42 | #include "XMLFile.h" |
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| 43 | #include "XMLNameListener.h" |
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| 44 | #include "XMLPort.h" |
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[7284] | 45 | #include "command/Functor.h" |
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[9667] | 46 | #include "object/Iterator.h" |
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[1505] | 47 | |
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[9667] | 48 | #include "class/OrxonoxInterface.h" // we include this only to include OrxonoxInterface.h at least once in core to keep MSVC happy... |
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| 49 | |
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[1505] | 50 | namespace orxonox |
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| 51 | { |
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[9667] | 52 | RegisterClass(BaseObject); |
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[1505] | 53 | |
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| 54 | /** |
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| 55 | @brief Constructor: Registers the object in the BaseObject-list. |
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| 56 | */ |
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[9667] | 57 | BaseObject::BaseObject(Context* context) : bInitialized_(false) |
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[1505] | 58 | { |
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[9667] | 59 | RegisterObject(BaseObject); |
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[1558] | 60 | |
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| 61 | this->bInitialized_ = true; |
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[5781] | 62 | |
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| 63 | this->bActive_ = true; |
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| 64 | this->bVisible_ = true; |
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| 65 | this->oldGametype_ = 0; |
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[5929] | 66 | this->bRegisteredEventStates_ = false; |
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[5781] | 67 | |
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| 68 | this->lastLoadedXMLElement_ = 0; |
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| 69 | |
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[5929] | 70 | this->mainStateFunctor_ = 0; |
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[5781] | 71 | |
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[9667] | 72 | if (context) |
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| 73 | this->setContext(context); |
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| 74 | |
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| 75 | BaseObject* creator = orxonox_cast<BaseObject*>(context); |
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[5781] | 76 | this->setCreator(creator); |
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| 77 | if (this->creator_) |
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| 78 | { |
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| 79 | this->setFile(this->creator_->getFile()); |
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| 80 | this->setNamespace(this->creator_->getNamespace()); |
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[5929] | 81 | this->setScene(this->creator_->getScene(), this->creator_->getSceneID()); |
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[5781] | 82 | this->setGametype(this->creator_->getGametype()); |
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[7163] | 83 | this->setLevel(this->creator_->getLevel()); |
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[5781] | 84 | } |
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| 85 | else |
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| 86 | { |
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| 87 | this->file_ = 0; |
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[5929] | 88 | this->sceneID_ = OBJECTID_UNKNOWN; |
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[5781] | 89 | } |
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[1505] | 90 | } |
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| 91 | |
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| 92 | /** |
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| 93 | @brief Destructor |
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| 94 | */ |
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| 95 | BaseObject::~BaseObject() |
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| 96 | { |
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[2662] | 97 | if (this->isInitialized()) |
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| 98 | { |
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[5929] | 99 | for (std::map<BaseObject*, std::string>::const_iterator it = this->eventSources_.begin(); it != this->eventSources_.end(); ) |
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| 100 | this->removeEventSource((it++)->first); |
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[5781] | 101 | |
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[5929] | 102 | for (std::set<BaseObject*>::const_iterator it = this->eventListeners_.begin(); it != this->eventListeners_.end(); ) |
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| 103 | (*(it++))->removeEventSource(this); |
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[5781] | 104 | |
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[5929] | 105 | for (std::map<std::string, EventState*>::const_iterator it = this->eventStates_.begin(); it != this->eventStates_.end(); ++it) |
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| 106 | delete it->second; |
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[2662] | 107 | } |
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[1505] | 108 | } |
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[7163] | 109 | |
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[6800] | 110 | /** @brief Adds an object which listens to the events of this object. */ |
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| 111 | void BaseObject::registerEventListener(BaseObject* object) |
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| 112 | { |
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[8858] | 113 | orxout(verbose, context::events) << "New EventListener: " << object->getIdentifier()->getName() << " &(" << object << ")." << endl; |
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[6800] | 114 | this->eventListeners_.insert(object); |
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| 115 | } |
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[5781] | 116 | |
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| 117 | /** |
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| 118 | @brief XML loading and saving. |
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| 119 | @param xmlelement The XML-element |
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[7401] | 120 | @param mode The mode defines the operation that is being executed: loading or saving the object (from or to XML respectively) |
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[5781] | 121 | */ |
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| 122 | void BaseObject::XMLPort(Element& xmlelement, XMLPort::Mode mode) |
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| 123 | { |
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| 124 | XMLPortParam(BaseObject, "name", setXMLName, getName, xmlelement, mode); |
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| 125 | XMLPortParam(BaseObject, "visible", setVisible, isVisible, xmlelement, mode); |
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| 126 | XMLPortParam(BaseObject, "active", setActive, isActive, xmlelement, mode); |
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| 127 | XMLPortParam(BaseObject, "mainstate", setMainStateName, getMainStateName, xmlelement, mode); |
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[6524] | 128 | XMLPortParamTemplate(BaseObject, "template", addTemplate, getSingleTemplate, xmlelement, mode, const std::string&); |
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[7163] | 129 | |
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[5781] | 130 | XMLPortObjectTemplate(BaseObject, Template, "templates", addTemplate, getTemplate, xmlelement, mode, Template*); |
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[5929] | 131 | XMLPortObject(BaseObject, BaseObject, "eventlisteners", addEventListener, getEventListener, xmlelement, mode); |
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[6417] | 132 | |
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[5929] | 133 | Element* events = 0; |
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| 134 | if (mode == XMLPort::LoadObject || mode == XMLPort::ExpandObject) |
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| 135 | events = xmlelement.FirstChildElement("events", false); |
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| 136 | else if (mode == XMLPort::SaveObject) |
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| 137 | {} |
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[5781] | 138 | if (events) |
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[5929] | 139 | this->XMLEventPort(*events, mode); |
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| 140 | } |
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[5781] | 141 | |
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[5929] | 142 | /** |
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| 143 | @brief Defines the possible event states of this object and parses eventsources from an XML file. |
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| 144 | @param xmlelement The XML-element |
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[7401] | 145 | @param mode The mode defines the operation that is being executed: loading or saving the object (from or to XML respectively) |
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[5929] | 146 | */ |
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| 147 | void BaseObject::XMLEventPort(Element& xmlelement, XMLPort::Mode mode) |
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| 148 | { |
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| 149 | XMLPortEventState(BaseObject, BaseObject, "activity", setActive, xmlelement, mode); |
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| 150 | XMLPortEventState(BaseObject, BaseObject, "visibility", setVisible, xmlelement, mode); |
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| 151 | XMLPortEventState(BaseObject, BaseObject, "mainstate", setMainState, xmlelement, mode); |
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[6417] | 152 | |
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[5929] | 153 | this->bRegisteredEventStates_ = true; |
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[5781] | 154 | } |
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| 155 | |
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| 156 | /** |
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| 157 | @brief Loads the name of the object through XML and calls all XMLNameListener. |
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| 158 | @param name The name of the object |
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| 159 | */ |
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| 160 | void BaseObject::setXMLName(const std::string& name) |
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| 161 | { |
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| 162 | this->setName(name); |
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| 163 | |
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| 164 | for (ObjectList<XMLNameListener>::iterator it = ObjectList<XMLNameListener>::begin(); it != ObjectList<XMLNameListener>::end(); ++it) |
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| 165 | it->loadedNewXMLName(this); |
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| 166 | } |
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| 167 | |
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| 168 | /** |
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| 169 | @brief Returns the levelfile that loaded this object. |
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| 170 | @return The levelfile |
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| 171 | */ |
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| 172 | const std::string& BaseObject::getFilename() const |
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| 173 | { |
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| 174 | if (this->file_) |
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| 175 | return this->file_->getFilename(); |
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| 176 | else |
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| 177 | return BLANKSTRING; |
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| 178 | } |
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| 179 | |
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| 180 | /** |
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| 181 | @brief Adds a Template to the object. |
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| 182 | @param name The name of the Template |
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| 183 | */ |
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| 184 | void BaseObject::addTemplate(const std::string& name) |
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| 185 | { |
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| 186 | Template* temp = Template::getTemplate(name); |
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| 187 | if (temp) |
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| 188 | this->addTemplate(temp); |
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| 189 | else |
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[8858] | 190 | orxout(internal_error) << "\"" << name << "\" is not a valid Template name (in class: " << this->getIdentifier()->getName() << ", name: " << this->getName() << ")." << endl; |
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[5781] | 191 | } |
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| 192 | |
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| 193 | /** |
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| 194 | @brief Adds a Template to the object. |
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| 195 | @param temp The Template |
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| 196 | */ |
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| 197 | void BaseObject::addTemplate(Template* temp) |
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| 198 | { |
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[8706] | 199 | // network |
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| 200 | if (temp->isLink()) |
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[7163] | 201 | { |
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[8706] | 202 | this->networkTemplateNames_.insert(temp->getLink()); |
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[9667] | 203 | |
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[8706] | 204 | Template* link; |
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| 205 | assert(!(link = Template::getTemplate(temp->getLink())) || !link->isLink()); |
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| 206 | link = NULL; |
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[7163] | 207 | } |
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| 208 | else |
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[8706] | 209 | this->networkTemplateNames_.insert(temp->getName()); |
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| 210 | |
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| 211 | // add template |
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| 212 | this->templates_.insert(temp); |
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[5781] | 213 | temp->applyOn(this); |
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| 214 | } |
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| 215 | |
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| 216 | /** |
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[6524] | 217 | @brief Returns the name of the first Template. |
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| 218 | @return The name as string. |
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| 219 | */ |
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| 220 | const std::string& BaseObject::getSingleTemplate(void) const |
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| 221 | { |
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| 222 | if(this->templates_.empty()) |
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| 223 | return BLANKSTRING; |
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| 224 | |
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| 225 | return (*this->templates_.begin())->getName(); |
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| 226 | } |
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| 227 | |
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| 228 | /** |
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[5781] | 229 | @brief Returns the Template with the given index. |
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| 230 | @param index The index |
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| 231 | */ |
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| 232 | Template* BaseObject::getTemplate(unsigned int index) const |
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| 233 | { |
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| 234 | unsigned int i = 0; |
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| 235 | for (std::set<Template*>::const_iterator it = this->templates_.begin(); it != this->templates_.end(); ++it) |
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| 236 | { |
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| 237 | if (i == index) |
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| 238 | return (*it); |
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| 239 | i++; |
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| 240 | } |
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| 241 | return 0; |
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| 242 | } |
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| 243 | |
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[5929] | 244 | /** |
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| 245 | @brief Adds a new event source for a specific state. |
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| 246 | @param source The object which sends events to this object |
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| 247 | @param state The state of this object which will be affected by the events |
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| 248 | */ |
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| 249 | void BaseObject::addEventSource(BaseObject* source, const std::string& state) |
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[5781] | 250 | { |
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[5929] | 251 | this->eventSources_[source] = state; |
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| 252 | source->registerEventListener(this); |
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[5781] | 253 | } |
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| 254 | |
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[5929] | 255 | /** |
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| 256 | @brief Removes an eventsource (but doesn't unregister itself at the source). |
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| 257 | */ |
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| 258 | void BaseObject::removeEventSource(BaseObject* source) |
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[5781] | 259 | { |
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[5929] | 260 | this->eventSources_.erase(source); |
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| 261 | source->unregisterEventListener(this); |
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[5781] | 262 | } |
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| 263 | |
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[5929] | 264 | /** |
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| 265 | @brief Returns an eventsource with a given index. |
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| 266 | */ |
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| 267 | BaseObject* BaseObject::getEventSource(unsigned int index, const std::string& state) const |
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[5781] | 268 | { |
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| 269 | unsigned int i = 0; |
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[5929] | 270 | for (std::map<BaseObject*, std::string>::const_iterator it = this->eventSources_.begin(); it != this->eventSources_.end(); ++it) |
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[5781] | 271 | { |
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[5929] | 272 | if (it->second != state) |
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| 273 | continue; |
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[6417] | 274 | |
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[5781] | 275 | if (i == index) |
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[5929] | 276 | return it->first; |
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[5781] | 277 | ++i; |
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| 278 | } |
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| 279 | return 0; |
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| 280 | } |
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| 281 | |
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[5929] | 282 | /** |
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| 283 | @brief Adds an object which listens to the events of this object. The events are sent to the other objects mainstate. |
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| 284 | */ |
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| 285 | void BaseObject::addEventListener(BaseObject* listener) |
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[5781] | 286 | { |
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[5929] | 287 | this->eventListenersXML_.insert(listener); |
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| 288 | listener->addEventSource(this, "mainstate"); |
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| 289 | } |
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[6417] | 290 | |
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[5929] | 291 | /** |
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| 292 | @brief Returns an event listener with a given index. |
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| 293 | */ |
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| 294 | BaseObject* BaseObject::getEventListener(unsigned int index) const |
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| 295 | { |
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| 296 | unsigned int i = 0; |
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| 297 | for (std::set<BaseObject*>::const_iterator it = this->eventListenersXML_.begin(); it != this->eventListenersXML_.end(); ++it) |
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[5781] | 298 | { |
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[5929] | 299 | if (i == index) |
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| 300 | return *it; |
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| 301 | ++i; |
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| 302 | } |
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| 303 | return 0; |
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| 304 | } |
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| 305 | |
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| 306 | /** |
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| 307 | @brief Adds a new event-state to the object. Event-states are states which can be changed by events. |
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| 308 | @param name The name of the event |
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| 309 | @param state The object containing information about the event-state |
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| 310 | */ |
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| 311 | void BaseObject::addEventState(const std::string& name, EventState* state) |
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| 312 | { |
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| 313 | std::map<std::string, EventState*>::const_iterator it = this->eventStates_.find(name); |
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| 314 | if (it != this->eventStates_.end()) |
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| 315 | { |
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[8858] | 316 | orxout(internal_warning, context::events) << "Overwriting EventState in class " << this->getIdentifier()->getName() << '.' << endl; |
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[5781] | 317 | delete (it->second); |
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| 318 | } |
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| 319 | |
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[5929] | 320 | this->eventStates_[name] = state; |
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[5781] | 321 | } |
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| 322 | |
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[5929] | 323 | /** |
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| 324 | @brief Returns the event-state with the given name. |
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| 325 | */ |
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| 326 | EventState* BaseObject::getEventState(const std::string& name) const |
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[5781] | 327 | { |
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[5929] | 328 | std::map<std::string, EventState*>::const_iterator it = this->eventStates_.find(name); |
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| 329 | if (it != this->eventStates_.end()) |
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[6417] | 330 | return (it->second); |
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[5781] | 331 | else |
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| 332 | return 0; |
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| 333 | } |
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| 334 | |
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[5929] | 335 | /** |
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| 336 | @brief Fires an event (without a state). |
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| 337 | */ |
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| 338 | void BaseObject::fireEvent(const std::string& name) |
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[5781] | 339 | { |
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[5929] | 340 | this->fireEvent(true, name); |
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| 341 | this->fireEvent(false, name); |
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[5781] | 342 | } |
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| 343 | |
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[5929] | 344 | /** |
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| 345 | @brief Fires an event which activates or deactivates a state. |
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| 346 | */ |
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| 347 | void BaseObject::fireEvent(bool activate, const std::string& name) |
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[5781] | 348 | { |
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[5929] | 349 | this->fireEvent(activate, this, name); |
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[5781] | 350 | } |
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| 351 | |
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[5929] | 352 | /** |
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| 353 | @brief Fires an event which activates or deactivates a state with agiven originator (the object which triggered the event). |
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| 354 | */ |
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| 355 | void BaseObject::fireEvent(bool activate, BaseObject* originator, const std::string& name) |
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[5781] | 356 | { |
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[5929] | 357 | Event event(activate, originator, name); |
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[5781] | 358 | |
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[5929] | 359 | for (std::set<BaseObject*>::iterator it = this->eventListeners_.begin(); it != this->eventListeners_.end(); ++it) |
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[5781] | 360 | { |
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[5929] | 361 | event.statename_ = (*it)->eventSources_[this]; |
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| 362 | (*it)->processEvent(event); |
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[5781] | 363 | } |
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| 364 | } |
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| 365 | |
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[5929] | 366 | /** |
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| 367 | @brief Fires an event, using the Event struct. |
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| 368 | */ |
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[5781] | 369 | void BaseObject::fireEvent(Event& event) |
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| 370 | { |
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[5929] | 371 | for (std::set<BaseObject*>::iterator it = this->eventListeners_.begin(); it != this->eventListeners_.end(); ++it) |
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| 372 | (*it)->processEvent(event); |
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[5781] | 373 | } |
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| 374 | |
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[5929] | 375 | /** |
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| 376 | @brief Processing an event by calling the right main state. |
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| 377 | @param event The event struct which contains the information about the event |
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| 378 | */ |
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[5781] | 379 | void BaseObject::processEvent(Event& event) |
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| 380 | { |
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[5929] | 381 | this->registerEventStates(); |
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[7163] | 382 | |
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[8858] | 383 | orxout(verbose, context::events) << this->getIdentifier()->getName() << " (&" << this << ") processing event. originator: " << event.originator_->getIdentifier()->getName() << " (&" << event.originator_ << "), activate: " << event.activate_ << ", name: " << event.name_ << ", statename: " << event.statename_ << "." << endl; |
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[6417] | 384 | |
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[5929] | 385 | std::map<std::string, EventState*>::const_iterator it = this->eventStates_.find(event.statename_); |
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| 386 | if (it != this->eventStates_.end()) |
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| 387 | it->second->process(event, this); |
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[6417] | 388 | else if (!event.statename_.empty()) |
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[8858] | 389 | orxout(internal_warning, context::events) << "\"" << event.statename_ << "\" is not a valid state in object \"" << this->getName() << "\" of class " << this->getIdentifier()->getName() << "." << endl; |
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[5929] | 390 | else |
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[8858] | 391 | orxout(internal_warning, context::events) << "Event with invalid source sent to object \"" << this->getName() << "\" of class " << this->getIdentifier()->getName() << "." << endl; |
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[5781] | 392 | } |
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| 393 | |
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[5929] | 394 | /** |
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| 395 | @brief Sets the main state of the object to a given boolean value. |
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[6417] | 396 | |
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[5929] | 397 | Note: The main state of an object can be set with the @ref setMainStateName function. |
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| 398 | It's part of the eventsystem and used for event forwarding (when the target object can't specify a specific state, |
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| 399 | the main state is used by default). |
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| 400 | */ |
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| 401 | void BaseObject::setMainState(bool state) |
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[5781] | 402 | { |
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[5929] | 403 | if (this->mainStateFunctor_) |
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[5781] | 404 | { |
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[5929] | 405 | if (this->mainStateFunctor_->getParamCount() == 0) |
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| 406 | { |
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| 407 | if (state) |
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| 408 | (*this->mainStateFunctor_)(); |
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| 409 | } |
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| 410 | else |
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| 411 | { |
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| 412 | (*this->mainStateFunctor_)(state); |
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| 413 | } |
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[5781] | 414 | } |
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| 415 | else |
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[8858] | 416 | orxout(internal_warning, context::events) << "No MainState defined in object \"" << this->getName() << "\" (" << this->getIdentifier()->getName() << ")" << endl; |
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[5781] | 417 | } |
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| 418 | |
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[5929] | 419 | /** |
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| 420 | @brief This function gets called if the main state name of the object changes. |
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| 421 | */ |
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| 422 | void BaseObject::changedMainStateName() |
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[5781] | 423 | { |
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[5929] | 424 | this->mainStateFunctor_ = 0; |
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| 425 | |
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[6417] | 426 | if (!this->mainStateName_.empty()) |
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[5781] | 427 | { |
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[5929] | 428 | this->registerEventStates(); |
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[6417] | 429 | |
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[5929] | 430 | std::map<std::string, EventState*>::const_iterator it = this->eventStates_.find(this->mainStateName_); |
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| 431 | if (it != this->eventStates_.end() && it->second->getFunctor()) |
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| 432 | { |
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| 433 | if (it->second->getFunctor()->getParamCount() <= 1) |
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| 434 | this->mainStateFunctor_ = it->second->getFunctor(); |
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| 435 | else |
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[8858] | 436 | orxout(internal_warning, context::events) << "Can't use \"" << this->mainStateName_ << "\" as MainState because it needs a second argument." << endl; |
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[5929] | 437 | } |
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| 438 | else |
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[8858] | 439 | orxout(internal_warning, context::events) << "\"" << this->mainStateName_ << "\" is not a valid MainState." << endl; |
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[5781] | 440 | } |
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[5929] | 441 | } |
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[6417] | 442 | |
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[5929] | 443 | /** |
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| 444 | @brief Calls XMLEventPort with an empty XML-element to register the event states if necessary. |
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| 445 | */ |
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| 446 | void BaseObject::registerEventStates() |
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| 447 | { |
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| 448 | if (!this->bRegisteredEventStates_) |
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[5781] | 449 | { |
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[5929] | 450 | Element xmlelement; |
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| 451 | this->XMLEventPort(xmlelement, XMLPort::NOP); |
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[5781] | 452 | } |
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| 453 | } |
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[6417] | 454 | |
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[5929] | 455 | /** |
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| 456 | @brief Manually loads all event states, even if the class doesn't officially support them. This is needed by some classes like @ref EventDispatcher or @ref EventTarget. |
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| 457 | */ |
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| 458 | void BaseObject::loadAllEventStates(Element& xmlelement, XMLPort::Mode mode, BaseObject* object, Identifier* identifier) |
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| 459 | { |
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| 460 | Element* events = xmlelement.FirstChildElement("events", false); |
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| 461 | if (events) |
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| 462 | { |
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| 463 | // get the list of all states present |
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| 464 | std::list<std::string> eventnames; |
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| 465 | if (mode == XMLPort::LoadObject || mode == XMLPort::ExpandObject) |
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| 466 | { |
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| 467 | for (ticpp::Iterator<ticpp::Element> child = events->FirstChildElement(false); child != child.end(); child++) |
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| 468 | eventnames.push_back(child->Value()); |
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| 469 | } |
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| 470 | else if (mode == XMLPort::SaveObject) |
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| 471 | { |
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| 472 | } |
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[5781] | 473 | |
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[5929] | 474 | // iterate through all states and get the event sources |
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| 475 | for (std::list<std::string>::iterator it = eventnames.begin(); it != eventnames.end(); ++it) |
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| 476 | { |
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[6417] | 477 | const std::string& statename = (*it); |
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[5929] | 478 | |
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| 479 | // if the event state is already known, continue with the next state |
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| 480 | orxonox::EventState* eventstate = object->getEventState(statename); |
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| 481 | if (eventstate) |
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| 482 | continue; |
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| 483 | |
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| 484 | XMLPortClassObjectContainer<BaseObject, BaseObject>* container = (XMLPortClassObjectContainer<BaseObject, BaseObject>*)(identifier->getXMLPortObjectContainer(statename)); |
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| 485 | if (!container) |
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| 486 | { |
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[7284] | 487 | const ExecutorMemberPtr<BaseObject>& setfunctor = createExecutor(createFunctor(&BaseObject::addEventSource), std::string( "BaseObject" ) + "::" + "addEventSource" + '(' + statename + ')'); |
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| 488 | const ExecutorMemberPtr<BaseObject>& getfunctor = createExecutor(createFunctor(&BaseObject::getEventSource), std::string( "BaseObject" ) + "::" + "getEventSource" + '(' + statename + ')'); |
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[5929] | 489 | setfunctor->setDefaultValue(1, statename); |
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| 490 | getfunctor->setDefaultValue(1, statename); |
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| 491 | |
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| 492 | container = new XMLPortClassObjectContainer<BaseObject, BaseObject>(statename, identifier, setfunctor, getfunctor, false, true); |
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| 493 | identifier->addXMLPortObjectContainer(statename, container); |
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| 494 | } |
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| 495 | container->port(object, *events, mode); |
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| 496 | } |
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| 497 | } |
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[5781] | 498 | } |
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[1505] | 499 | } |
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