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59 lines
2.1 KiB
59 lines
2.1 KiB
5 years ago
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/**
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* One of the two classes that make up a core of event system in Acedia.
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*
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* 'Listener' (or it's child) class shouldn't be instantiated.
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* Usually module would provide '...ListenerBase' class that defines
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* certain set of static functions, corresponding to events it can listen to.
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* In order to handle those events you must create it's child class and
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* override said functions. But they will only be called if
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* 'SetActive(true)' is called for that child class.
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* To create you own '...ListenerBase' class you need to define
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* a static function for each event you wish it to catch and
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* set 'relatedEvents' variable to point at the 'Events' class
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* that will generate your events.
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* For concrete example look at
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* 'ConnectionEvents' and 'ConnectionListenerBase'.
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* Copyright 2019 Anton Tarasenko
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*------------------------------------------------------------------------------
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* This file is part of Acedia.
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*
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* Acedia is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License, or
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* (at your option) any later version.
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*
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* Acedia is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Acedia. If not, see <https://www.gnu.org/licenses/>.
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*/
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class Listener extends Object
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abstract;
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var public const class<Events> relatedEvents;
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static public final function SetActive(bool active)
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{
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if (active)
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{
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default.relatedEvents.static.ActivateListener(default.class);
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}
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else
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{
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default.relatedEvents.static.DeactivateListener(default.class);
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}
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}
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static public final function IsActive(bool active)
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{
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default.relatedEvents.static.IsActiveListener(default.class);
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}
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defaultproperties
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{
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relatedEvents = class'Events'
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}
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