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source: code/branches/chat2/src/modules/objects/triggers/DistanceMultiTrigger.h @ 6957

Last change on this file since 6957 was 6800, checked in by dafrick, 16 years ago

Created a new class of triggers called Multitriggers.
MultiTriggers are triggers which (as opposed to normal triggers) have a state for each object triggering the MultiTrigger, that means, that a MultiTrigger can be triggered for two different Players, while not being triggered for a third.
To go with this MultiTrigger I created a data structure (MultitriggerContainer), which helps relaying important information to the objects, that receive the Events of the trigger.
Also there is a MultiDistanceTrigger, which is just the DistanceTrigger as a MultiTrigger.

To make this work I had to make some adjustements to the eventsystem, namely an EventState can now be either an EventState (as it was before) or an EventSink, which means that every efent arriving at the EventState is processed as opposed to just the ones which change the state.
There is a new makro (XMLPortEventSink) to create an EventState with sink behaviour. It can be used exacly as the XMLPortEventState makro.

File size: 2.3 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 *      Damian 'Mozork' Frick
24 *   Co-authors:
25 *      ...
26 *
27*/
28
29#ifndef _DistanceMultiTrigger_H__
30#define _DistanceMultiTrigger_H__
31
32#include "objects/ObjectsPrereqs.h"
33
34#include "worldentities/WorldEntity.h"
35#include <set>
36
37#include "MultiTrigger.h"
38
39namespace orxonox
40{
41
42    class _ObjectsExport DistanceMultiTrigger : public MultiTrigger
43    {
44       
45        public:
46            DistanceMultiTrigger(BaseObject* creator);
47            ~DistanceMultiTrigger();
48           
49            void XMLPort(Element& xmlelement, XMLPort::Mode mode);
50           
51            inline void setDistance(float distance)
52                { this->distance_ = distance; }
53            inline float getDistance() const
54                { return this->distance_; }
55               
56        protected:
57            virtual std::queue<MultiTriggerState*>* letTrigger(void);
58           
59            inline bool inRange(WorldEntity* entity)
60                { return this->range_.find(entity) != this->range_.end(); }
61            bool addToRange(WorldEntity* entity)
62                { std::pair<std::set<WorldEntity*>::iterator, bool> pair = this->range_.insert(entity); return pair.second; }
63            bool removeFromRange(WorldEntity* entity)
64                { return this->range_.erase(entity) > 0; }
65               
66        private:
67            float distance_;
68            std::set<WorldEntity*> range_;
69       
70    };
71   
72}
73
74#endif // _DistanceMultiTrigger_H__
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