79 lines
2.1 KiB
C#
Executable File
79 lines
2.1 KiB
C#
Executable File
#region Copyright & License Information
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/*
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* Copyright 2007-2010 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see LICENSE.
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*/
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#endregion
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using System.Collections.Generic;
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using System.Linq;
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using OpenRA.FileFormats;
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using OpenRA.GameRules;
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namespace OpenRA.Traits
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{
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class TechTreeCacheInfo : TraitInfo<TechTreeCache> { }
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class TechTreeCache : ITick
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{
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class Watcher
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{
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public readonly string key;
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// strings may be either actor type, or "alternate name" key
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public readonly List<string> prerequisites;
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public readonly ITechTreeElement watcher;
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bool hasPrerequisites;
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public Watcher(string key, List<string> prerequisites, ITechTreeElement watcher)
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{
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this.key = key;
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this.prerequisites = prerequisites;
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this.watcher = watcher;
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this.hasPrerequisites = false;
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}
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public void Tick( Player owner, Cache<string, List<Actor>> buildings )
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{
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var nowHasPrerequisites = prerequisites.All( a => buildings[ a ].Any( b => !b.Trait<Building>().Disabled ) );
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if( nowHasPrerequisites && !hasPrerequisites )
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watcher.PrerequisitesAvailable(key);
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if( !nowHasPrerequisites && hasPrerequisites )
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watcher.PrerequisitesUnavailable(key);
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hasPrerequisites = nowHasPrerequisites;
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}
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}
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readonly List<Watcher> watchers = new List<Watcher>();
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public void Tick( Actor self )
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{
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var buildings = Rules.TechTree.GatherBuildings( self.Owner );
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foreach( var w in watchers )
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w.Tick( self.Owner, buildings );
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}
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public void Add( string key, List<string> prerequisites, ITechTreeElement tte )
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{
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watchers.Add( new Watcher( key, prerequisites, tte ) );
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}
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public void Remove( string key )
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{
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watchers.RemoveAll( x => x.key == key );
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}
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}
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interface ITechTreeElement
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{
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void PrerequisitesAvailable(string key);
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void PrerequisitesUnavailable(string key);
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}
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}
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