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comparison engine/core/eventchannel/trigger/ec_trigger.h @ 0:4a0efb7baf70

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* Datasets becomes the new trunk and retires after that :-)
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Sun, 29 Jun 2008 18:44:17 +0000
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children 90005975cdbb
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-1:000000000000 0:4a0efb7baf70
1 /***************************************************************************
2 * Copyright (C) 2005-2008 by the FIFE team *
3 * http://www.fifengine.de *
4 * This file is part of FIFE. *
5 * *
6 * FIFE is free software; you can redistribute it and/or modify *
7 * it under the terms of the GNU General Public License as published by *
8 * the Free Software Foundation; either version 2 of the License, or *
9 * (at your option) any later version. *
10 * *
11 * This program is distributed in the hope that it will be useful, *
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
14 * GNU General Public License for more details. *
15 * *
16 * You should have received a copy of the GNU General Public License *
17 * along with this program; if not, write to the *
18 * Free Software Foundation, Inc., *
19 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA *
20 ***************************************************************************/
21
22 #ifndef FIFE_EVENTCHANNEL_TRIGGER_H
23 #define FIFE_EVENTCHANNEL_TRIGGER_H
24
25 // Standard C++ library includes
26 //
27 #include <list>
28
29 // 3rd party library includes
30 //
31
32 // FIFE includes
33 // These includes are split up in two parts, separated by one empty line
34 // First block: files included from the FIFE root src directory
35 // Second block: files included from the same folder
36 //
37
38 #include "ec_itriggercontroller.h"
39 #include "ec_itriggerlistener.h"
40
41 namespace FIFE {
42
43 /**
44 * A trigger is fired when certain preconditions met
45 */
46 class Trigger : public ITriggerController {
47
48 public:
49
50 Trigger(ITriggerListener& listener){
51 registerListener(listener);
52 }
53
54 Trigger() { };
55
56 virtual ~Trigger(){
57 m_triggers.clear();
58 }
59
60 void pollTrigger(){
61 if(requirementsMet()){
62 pollTriggers();
63 }
64 }
65
66 virtual bool requirementsMet(){
67 return false;
68 }
69
70 void registerTrigger(Trigger& trigger){
71 m_triggers.push_back(&trigger);
72 }
73
74 void unregisterTrigger(Trigger& trigger){
75 m_triggers.remove(&trigger);
76 }
77
78 void pollTriggers(){
79 for (std::list<Trigger*>::iterator it = m_triggers.begin(); it!=m_triggers.end(); ++it) {
80 (*it)->pollTrigger();
81 }
82 }
83
84 void fireTrigger(){
85 for (std::list<ITriggerListener*>::iterator it = m_listeners.begin(); it!=m_listeners.end(); ++it) {
86 (*it)->triggerFired();
87 }
88 }
89
90 void registerListener(ITriggerListener& triggerlistener){
91 m_listeners.push_back(&triggerlistener);
92 }
93
94 void unregisterListener(ITriggerListener& triggerlistener){
95 m_listeners.remove(&triggerlistener);
96 }
97
98 protected:
99 std::list<ITriggerListener*> m_listeners;
100 std::list<Trigger*> m_triggers;
101 };
102 }
103
104 #endif