Anton Tarasenko
341c4aaf89
Add ability to auto-launch and obtain instance of a `Service` with a single command. Add `Service`-specific events `Launch()` / `ShutDown()` Add ability to auto-register required listeners on launch.
81 lines
2.3 KiB
Ucode
81 lines
2.3 KiB
Ucode
/**
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* Parent class for all services used in Acedia.
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* Currently simply makes itself server-only.
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* Copyright 2020 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 Service extends Singleton
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abstract;
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// Listeners listed here will be automatically activated.
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var public const array< class<Listener> > requiredListeners;
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// Enables feature of given class.
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public static final function Service Require()
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{
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local Service newInstance;
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if (IsRunning())
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{
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return Service(GetInstance());
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}
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default.blockSpawning = false;
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newInstance = class'Acedia'.static.GetInstance().Spawn(default.class);
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default.blockSpawning = true;
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return newInstance;
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}
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// Whether service is currently running is determined by
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public static final function bool IsRunning()
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{
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return (GetInstance() != none);
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}
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protected function OnLaunch(){}
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protected function OnShutdown(){}
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protected function OnCreated()
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{
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default.blockSpawning = true;
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SetListenersActiveSatus(true);
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OnLaunch();
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}
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protected function OnDestroyed()
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{
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SetListenersActiveSatus(false);
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OnShutdown();
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}
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// Set listeners' status
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private static function SetListenersActiveSatus(bool newStatus)
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{
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local int i;
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for (i = 0; i < default.requiredListeners.length; i += 1)
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{
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if (default.requiredListeners[i] == none) continue;
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default.requiredListeners[i].static.SetActive(newStatus);
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}
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}
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defaultproperties
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{
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DrawType = DT_None
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// Prevent spawning this feature by any other means than 'Launch()'.
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blockSpawning = true
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// Features are server-only actors
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remoteRole = ROLE_None
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} |