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source: code/branches/core7/src/orxonox/Level.cc @ 10579

Last change on this file since 10579 was 10579, checked in by landauf, 5 years ago

inverted dependency between level and gametype: gametype now references level with a strong-pointer, but level references gametype with a weak-pointer. this means that gametype can be destroyed before level which in turn means that level is the last instance that is destroyed when the level is unloaded.

  • Property svn:eol-style set to native
File size: 6.1 KB
Line 
1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Fabian 'x3n' Landau
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29#include "Level.h"
30
31#include "util/Math.h"
32#include "core/CoreIncludes.h"
33#include "core/Loader.h"
34#include "core/Template.h"
35#include "core/XMLFile.h"
36#include "core/XMLPort.h"
37
38#include "infos/PlayerInfo.h"
39#include "gametypes/Gametype.h"
40#include "overlays/OverlayGroup.h"
41#include "LevelManager.h"
42
43namespace orxonox
44{
45    RegisterClass(Level);
46
47    Level::Level(Context* context) : BaseObject(context), Synchronisable(context), Context(context)
48    {
49        RegisterObject(Level);
50
51        this->setLevel(WeakPtr<Level>(this)); // store a weak-pointer to itself (a strong-pointer would create a recursive dependency)
52
53        this->registerVariables();
54        this->xmlfilename_ = this->getFilename();
55        this->xmlfile_ = 0;
56    }
57
58    Level::~Level()
59    {
60        if (this->isInitialized())
61        {
62            if (LevelManager::exists())
63                LevelManager::getInstance().releaseActivity(this);
64
65            if (this->xmlfile_)
66                Loader::getInstance().unload(this->xmlfile_);
67        }
68    }
69
70    void Level::XMLPort(Element& xmlelement, XMLPort::Mode mode)
71    {
72        SUPER(Level, XMLPort, xmlelement, mode);
73
74        XMLPortParam(Level, "gametype", setGametypeString, getGametypeString, xmlelement, mode).defaultValues("Gametype");
75
76        XMLPortObject(Level, MeshLodInformation, "lodinformation", addLodInfo, getLodInfo, xmlelement, mode);
77        XMLPortObjectExtended(Level, BaseObject, "", addObject, getObject, xmlelement, mode, true, false);
78    }
79
80    void Level::registerVariables()
81    {
82        registerVariable(this->xmlfilename_,            VariableDirection::ToClient, new NetworkCallback<Level>(this, &Level::networkcallback_applyXMLFile));
83        registerVariable(this->name_,                   VariableDirection::ToClient, new NetworkCallback<Level>(this, &Level::changedName));
84        registerVariable(this->networkTemplateNames_,   VariableDirection::ToClient, new NetworkCallback<Level>(this, &Level::networkCallbackTemplatesChanged));
85    }
86
87    void Level::networkcallback_applyXMLFile()
88    {
89        orxout(user_status) << "Loading level \"" << this->xmlfilename_ << "\"..." << endl;
90
91        ClassTreeMask mask;
92        mask.exclude(Class(BaseObject));
93        mask.include(Class(Template));
94        mask.include(Class(OverlayGroup)); // HACK to include the ChatOverlay
95
96        this->xmlfile_ = new XMLFile(mask, this->xmlfilename_);
97
98        Loader::getInstance().load(this->xmlfile_);
99    }
100
101    void Level::networkCallbackTemplatesChanged()
102    {
103        for( std::set<std::string>::iterator it = this->networkTemplateNames_.begin(); it!=this->networkTemplateNames_.end(); ++it )
104        {
105            assert(Template::getTemplate(*it));
106            Template::getTemplate(*it)->applyOn(this);
107        }
108    }
109
110    void Level::setGametypeString(const std::string& gametype)
111    {
112        Identifier* identifier = ClassByString(gametype);
113
114        if (!identifier || !identifier->isA(Class(Gametype)))
115        {
116            orxout(internal_error) << "\"" << gametype << "\" is not a valid gametype." << endl;
117            identifier = Class(Gametype);
118            this->gametype_ = "Gametype";
119        }
120        else
121            this->gametype_ = gametype;
122
123        Gametype* rootgametype = orxonox_cast<Gametype*>(identifier->fabricate(this));
124
125        // store a weak-pointer to the gametype to avoid a circular dependency between this level and the gametype (which has a strong-reference on this level)
126        this->setGametype(WeakPtr<Gametype>(rootgametype));
127
128        rootgametype->init(); // call init() AFTER the gametype was set
129
130        if (LevelManager::exists())
131            LevelManager::getInstance().requestActivity(this);
132    }
133
134
135    void Level::addObject(BaseObject* object)
136    {
137        this->objects_.push_back(object);
138    }
139
140    BaseObject* Level::getObject(unsigned int index) const
141    {
142        unsigned int i = 0;
143        for (std::list<BaseObject*>::const_iterator it = this->objects_.begin(); it != this->objects_.end(); ++it)
144        {
145            if (i == index)
146                return (*it);
147            ++i;
148        }
149        return 0;
150    }
151
152    void Level::addLodInfo(MeshLodInformation* lodInformation)
153    {
154        std::string meshName = lodInformation->getMeshName();
155//         this->lodInformation_.insert(std::make_pair(meshName,lodInformation));
156        if( this->lodInformation_.find(meshName) != this->lodInformation_.end())
157            orxout(verbose, context::lod) << "replacing lod information for " << meshName << endl;
158        this->lodInformation_[meshName] = lodInformation;
159    }
160
161    MeshLodInformation* Level::getLodInfo(std::string meshName) const
162    {
163        if(this->lodInformation_.find(meshName)!=this->lodInformation_.end())
164            return this->lodInformation_.find(meshName)->second;
165
166        return 0;
167    }
168
169    void Level::playerEntered(PlayerInfo* player)
170    {
171        orxout(internal_info) << "player entered level (id: " << player->getClientID() << ", name: " << player->getName() << ')' << endl;
172        player->switchGametype(this->getGametype());
173    }
174
175    void Level::playerLeft(PlayerInfo* player)
176    {
177        orxout(internal_info) << "player left level (id: " << player->getClientID() << ", name: " << player->getName() << ')' << endl;
178        player->switchGametype(0);
179    }
180}
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