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source: code/branches/gamestates2/src/orxonox/interfaces/Pickupable.cc @ 6658

Last change on this file since 6658 was 6540, checked in by dafrick, 15 years ago

Removed some TODO's. Finished up documenting pickup module.

File size: 7.9 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 *      Damian 'Mozork' Frick
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29/**
30    @file Pickupable.cc
31    @brief Implementation of the Pickupable class.
32*/
33
34#include "Pickupable.h"
35
36#include "core/Identifier.h"
37#include "core/CoreIncludes.h"
38#include "pickup/PickupIdentifier.h"
39#include "PickupCarrier.h"
40
41namespace orxonox
42{
43   
44    /**
45    @brief
46        Constructor. Registers the objects and initializes its member variables.
47    */
48    Pickupable::Pickupable() : used_(false), pickedUp_(false)
49    {       
50        RegisterRootObject(Pickupable);
51       
52        this->carrier_ = NULL;
53       
54        this->pickupIdentifier_ = new PickupIdentifier(this);
55    }
56   
57    /**
58    @brief
59        Destructor.
60    */
61    Pickupable::~Pickupable()
62    {
63        if(this->isUsed())
64            this->setUsed(false);
65       
66        if(this->isPickedUp() && this->getCarrier() != NULL)
67        {
68            this->getCarrier()->drop(this, false);
69            this->setCarrier(NULL);
70        }
71    }
72   
73    /**
74    @brief
75        Sets the Pickupable to used or unused, depending on the input.
76    @param used
77        If used is true the Pickupable is set to used, it is set to unused, otherwise.
78    @return
79        Returns true if the used state was changed, false if not.
80    */
81    bool Pickupable::setUsed(bool used)
82    {
83        if(this->used_ == used)
84            return false;
85       
86        COUT(4) << "Pickupable (&" << this << ") set to used " << used << "." << std::endl;
87       
88        this->used_ = used;
89        this->changedUsed();
90        return true;
91    }
92   
93    /**
94    @brief
95        Get whether the given PickupCarrier is a target of this Pickupable.
96    @param carrier
97        The PickupCarrier of which it has to be determinde whether it is a target of this Pickupable.
98    @return
99        Returns true if the given PickupCarrier is a target.
100    */
101    bool Pickupable::isTarget(const PickupCarrier* carrier) const
102    {
103        return this->isTarget(carrier->getIdentifier());
104    }
105   
106    /**
107    @brief
108        Get whether a given class, represented by the input Identifier, is a target of this Pickupable.
109    @param target
110        The Identifier of which it has to be determinde whether it is a target of this Pickupable.
111    @return
112        Returns true if the given Identifier is a target.
113    */
114    bool Pickupable::isTarget(Identifier* target) const
115    {
116        //! Iterate through all targets of this Pickupable.
117        for(std::list<Identifier*>::const_iterator it = this->targets_.begin(); it != this->targets_.end(); it++)
118        {
119            if(target->isA(*it))
120                return true;
121        }
122        return false;
123    }
124       
125    /**
126    @brief
127        Add a PickupCarrier as target of this Pickupable.
128    @param target
129        The PickupCarrier to be added.
130    @return
131        Returns true if the target was added, false if not.
132    */
133    bool Pickupable::addTarget(PickupCarrier* target)
134    {
135        return this->addTarget(target->getIdentifier());
136    }
137   
138    /**
139    @brief
140        Add a class, representetd by the input Identifier, as target of this Pickupable.
141    @param target
142        The Identifier to be added.
143    @return
144        Returns true if the target was added, false if not.
145    */
146    bool Pickupable::addTarget(Identifier* target)
147    {
148        if(this->isTarget(target)) //!< If the input target is already present in the list of targets.
149            return false;
150       
151        COUT(4) << "Target " << target->getName() << " added to Pickupable (&" << this << ")." << std::endl;
152        this->targets_.push_back(target);
153        return true;
154    }
155   
156    /**
157    @brief 
158        Sets the Pickupable to picked up.
159        This method will be called by the PickupCarrier picking the Pickupable up.
160    @param carrier
161        The PickupCarrier that picked the Pickupable up.
162    @return
163        Returns false if, for some reason, the pickup could not be picked up, e.g. it was picked up already.
164    */
165    bool Pickupable::pickedUp(PickupCarrier* carrier)
166    {
167        if(this->isPickedUp()) //!< If the Pickupable is already picked up.
168            return false;
169       
170        COUT(4) << "Pickupable (&" << this << ") got picked up by a PickupCarrier (&" << carrier << ")." << std::endl;
171        this->setCarrier(carrier);
172        this->setPickedUp(true);
173        return true;
174    }
175   
176    /**
177    @brief
178        Helper method to set the Pickupable to either picked up or not picked up.
179    @param pickedUp
180        The value this->pickedUp_ should be set to.
181    @return
182        Returns true if the pickedUp status was changed, false if not.
183    */
184    bool Pickupable::setPickedUp(bool pickedUp)
185    {
186        if(this->pickedUp_ == pickedUp)
187            return false;
188       
189        COUT(4) << "Pickupable (&" << this << ") set to pickedUp " << pickedUp << "." << std::endl;
190       
191        this->pickedUp_ = pickedUp;
192        this->changedPickedUp();
193        return true;
194    }
195       
196    /**
197    @brief
198        Sets the carrier of the Pickupable.
199    @param carrier
200        Sets the input PickupCarrier as the carrier of the pickup.
201    */
202    inline bool Pickupable::setCarrier(PickupCarrier* carrier)
203    {
204        if(this->carrier_ == carrier)
205            return false;
206       
207        COUT(4) << "Pickupable (&" << this << ") changed Carrier (& " << carrier << ")." << std::endl;
208       
209        this->carrier_ = carrier;
210        this->changedCarrier();
211        return true;
212    }
213   
214    /**
215    @brief
216        Sets the Pickupable to not picked up or dropped.
217        This method will be called by the PickupCarrier dropping the Pickupable.
218    @return
219        Returns false if the pickup could not be dropped.
220    */
221    bool Pickupable::dropped(void)
222    {
223        if(!this->isPickedUp()) //!< If the Pickupable is not picked up.
224            return false;
225       
226        COUT(4) << "Pickupable (&" << this << ") got dropped up by a PickupCarrier (&" << this->getCarrier() << ")." << std::endl;
227        this->setUsed(false);
228        this->setPickedUp(false);
229       
230        bool created = this->createSpawner();
231       
232        this->setCarrier(NULL);
233       
234        if(!created)
235        {
236            this->destroy();
237        }
238       
239        return true;
240    }
241   
242    /**
243    @brief
244        Creates a duplicate of the Pickupable.
245    @return
246        Returns the clone of this pickup as a pointer to a Pickupable.
247    */
248    Pickupable* Pickupable::clone(void)
249    {
250        OrxonoxClass* item = NULL;
251        this->clone(item);
252       
253        Pickupable* pickup = dynamic_cast<Pickupable*>(item);
254       
255        COUT(4) << "Pickupable (&" << this << ") cloned. Clone is new Pickupable (&" << pickup << ")." << std::endl;
256        return pickup;
257    }
258   
259    /**
260    @brief
261        Creates a duplicate of the input OrxonoxClass.
262        This method needs to be implemented by any Class inheriting from Pickupable.
263    @param item
264        A reference to a pointer to the OrxonoxClass that is to be duplicated.
265    */
266    void Pickupable::clone(OrxonoxClass*& item)
267    {
268        SUPER(Pickupable, clone, item);
269    }
270   
271}
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