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source: code/branches/SuperOrxoBros_HS18/SuperOrxoBros_HS18/src/libraries/core/object/Listable.cc @ 12175

Last change on this file since 12175 was 12175, checked in by siramesh, 5 years ago

Super Orxo Bros (Sidharth Ramesh, Nisa Balta, Jeff Ren)

File size: 3.0 KB
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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/**
30    @file
31    @brief Implementation of Listable.
32*/
33
34#include "Listable.h"
35#include "core/CoreIncludes.h"
36#include "ObjectListBase.h"
37#include "Context.h"
38
39namespace orxonox
40{
41    RegisterClass(Listable).virtualBase();
42
43    /**
44        @brief Constructor: Allocates space in the element list.
45    */
46    Listable::Listable() : Listable(Context::getRootContext())
47    {
48    }
49
50    /**
51        @brief Constructor: Allocates space in the element list and assigns the context
52    */
53    Listable::Listable(Context* context)
54    {
55        this->context_ = context;
56        this->elements_.reserve(6);
57
58        RegisterObject(Listable);
59    }
60
61    /**
62        @brief Destructor: Removes the object from the object-lists
63    */
64    Listable::~Listable()
65    {
66        this->unregisterObject();
67    }
68
69    /**
70        @brief Removes this object from the object-lists.
71    */
72    void Listable::unregisterObject()
73    {
74        for (ObjectListBaseElement* element : this->elements_)
75            Listable::deleteObjectListElement(element);
76        this->elements_.clear();
77    }
78
79    /**
80     * @brief Changes the context.
81     * The object is removed from the current context and added to the new one. This also applies to all object lists the object is registered in.
82     */
83    void Listable::setContext(Context* context)
84    {
85        assert(context);
86        std::vector<ObjectListBaseElement*> copy = this->elements_;
87        this->elements_.clear();
88
89        for (ObjectListBaseElement* element : copy)
90        {
91            element->changeContext(this->context_, context);
92            Listable::deleteObjectListElement(element);
93        }
94
95        this->context_ = context;
96    }
97
98    /* static */ SmallObjectAllocator& Listable::getObjectListElementAllocator()
99    {
100        static SmallObjectAllocator allocator(sizeof(ObjectListElement<Listable>), 1024);
101        return allocator;
102    }
103
104    /* static */ void Listable::deleteObjectListElement(ObjectListBaseElement* element)
105    {
106        element->~ObjectListBaseElement();
107        Listable::getObjectListElementAllocator().free(element);
108    }
109}
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