[9561] | 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 Context. |
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| 32 | */ |
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| 33 | |
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| 34 | #include "Context.h" |
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[9667] | 35 | #include "core/class/Identifier.h" |
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| 36 | #include "core/CoreIncludes.h" |
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[9561] | 37 | |
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| 38 | namespace orxonox |
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| 39 | { |
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[9667] | 40 | RegisterClass(Context); |
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| 41 | |
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[11071] | 42 | Context* Context::rootContext_s = nullptr; |
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[9667] | 43 | |
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| 44 | Context* getContextForInitializationOfOtherContexts() |
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[9561] | 45 | { |
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[9667] | 46 | static size_t count = 0; |
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| 47 | // the first time this is called, ++count returns 1 and the context is created |
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[11071] | 48 | // the second time this is called, ++count returns 2 and nullptr is returned because we're in the constructor of the context itself |
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[9667] | 49 | // for each future call the context (now completely created) is returned |
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| 50 | if (++count == 2) |
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[11071] | 51 | return nullptr; |
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[9667] | 52 | else |
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| 53 | { |
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[11071] | 54 | static Context context(nullptr); |
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[9667] | 55 | return &context; |
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| 56 | } |
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[9561] | 57 | } |
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| 58 | |
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[9667] | 59 | // Initialize Listable(*) with a special context, only used to initialize other contexts. Later in the constructor we change the context |
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| 60 | Context::Context(Context* context) : Listable(getContextForInitializationOfOtherContexts()), parentContext_(context) |
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| 61 | { |
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| 62 | RegisterObject(Context); |
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| 63 | |
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| 64 | // the context is its own context |
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| 65 | this->setContext(this); |
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| 66 | } |
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| 67 | |
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[9561] | 68 | Context::~Context() |
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| 69 | { |
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[9667] | 70 | // unregister context from object lists before object lists are destroyed |
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| 71 | this->unregisterObject(); |
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[11071] | 72 | for (ObjectListBase* objectList : this->objectLists_) |
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| 73 | delete objectList; |
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[9561] | 74 | } |
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| 75 | |
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[9667] | 76 | /*static*/ void Context::setRootContext(Context* context) |
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| 77 | { |
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| 78 | Context::rootContext_s = context; |
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| 79 | } |
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| 80 | |
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[10624] | 81 | /*static*/ void Context::destroyRootContext() |
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| 82 | { |
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| 83 | delete Context::rootContext_s; |
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[11071] | 84 | Context::rootContext_s = nullptr; |
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[10624] | 85 | } |
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| 86 | |
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[9561] | 87 | /*static*/ Context* Context::getRootContext() |
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| 88 | { |
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[11071] | 89 | OrxVerify(Context::rootContext_s != nullptr, "Root Context is undefined"); |
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[9667] | 90 | return Context::rootContext_s; |
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[9561] | 91 | } |
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[9667] | 92 | |
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| 93 | ObjectListBase* Context::getObjectList(const Identifier* identifier) |
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| 94 | { |
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| 95 | unsigned int classID = identifier->getClassID(); |
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| 96 | if (classID >= this->objectLists_.size()) |
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| 97 | this->objectLists_.resize(classID + 1); |
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| 98 | if (!this->objectLists_[classID]) |
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| 99 | this->objectLists_[classID] = new ObjectListBase(); |
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| 100 | return this->objectLists_[classID]; |
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| 101 | } |
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[10624] | 102 | |
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| 103 | void Context::destroyObjectList(const Identifier* identifier) |
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| 104 | { |
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| 105 | ObjectListBase* objectList = this->getObjectList(identifier); |
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| 106 | delete objectList; |
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[11071] | 107 | this->objectLists_[identifier->getClassID()] = nullptr; |
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[10624] | 108 | } |
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[9561] | 109 | } |
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