Files
OpenRA/OpenRA.Game/GameRules/ActorInfo.cs
Chris Forbes 58041f1b45 fixed.
2010-03-19 20:07:58 +13:00

124 lines
3.7 KiB
C#

#region Copyright & License Information
/*
* Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
* This file is part of OpenRA.
*
* OpenRA is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenRA is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenRA. If not, see <http://www.gnu.org/licenses/>.
*/
#endregion
using System;
using System.Collections.Generic;
using System.Linq;
using OpenRA.FileFormats;
using OpenRA.Traits;
namespace OpenRA.GameRules
{
public class ActorInfo
{
public readonly string Name;
public readonly string Category;
public readonly TypeDictionary Traits = new TypeDictionary();
public ActorInfo( string name, MiniYaml node, Dictionary<string, MiniYaml> allUnits )
{
var mergedNode = MergeWithParent( node, allUnits ).Nodes;
Name = name;
MiniYaml categoryNode;
if( mergedNode.TryGetValue( "Category", out categoryNode ) )
Category = categoryNode.Value;
foreach( var t in mergedNode )
if( t.Key != "Inherits" && t.Key != "Category" && !t.Key.StartsWith("-") )
Traits.Add( LoadTraitInfo( t.Key, t.Value ) );
}
static MiniYaml GetParent( MiniYaml node, Dictionary<string, MiniYaml> allUnits )
{
MiniYaml inherits;
node.Nodes.TryGetValue( "Inherits", out inherits );
if( inherits == null || string.IsNullOrEmpty( inherits.Value ) )
return null;
MiniYaml parent;
allUnits.TryGetValue( inherits.Value, out parent );
if( parent == null )
return null;
return parent;
}
static MiniYaml MergeWithParent( MiniYaml node, Dictionary<string, MiniYaml> allUnits )
{
var parent = GetParent( node, allUnits );
if( parent != null )
return MiniYaml.Merge( node, MergeWithParent( parent, allUnits ) );
return node;
}
static ITraitInfo LoadTraitInfo(string traitName, MiniYaml my)
{
if (traitName.Contains('@'))
traitName = traitName.Substring(0, traitName.IndexOf('@'));
foreach (var mod in Game.ModAssemblies)
{
var fullTypeName = mod.Second + "." + traitName + "Info";
var info = (ITraitInfo)mod.First.CreateInstance(fullTypeName);
if (info == null) continue;
FieldLoader.Load(info, my);
return info;
}
throw new InvalidOperationException("Cannot locate trait: {0}".F(traitName));
}
public IEnumerable<ITraitInfo> TraitsInConstructOrder()
{
var ret = new List<ITraitInfo>();
var t = Traits.WithInterface<ITraitInfo>().ToList();
int index = 0;
while( t.Count != 0 )
{
if( index >= t.Count )
throw new InvalidOperationException( "Trait prerequisites not satisfied (or prerequisite loop)" );
var prereqs = PrerequisitesOf( t[ index ] );
if( prereqs.Count == 0 || prereqs.All( n => ret.Any( x => x.GetType().IsSubclassOf( n ) ) ) )
{
ret.Add( t[ index ] );
t.RemoveAt( index );
index = 0;
}
else
++index;
}
return ret;
}
static List<Type> PrerequisitesOf( ITraitInfo info )
{
return info
.GetType()
.GetInterfaces()
.Where( t => t.IsGenericType && t.GetGenericTypeDefinition() == typeof( ITraitPrerequisite<> ) )
.Select( t => t.GetGenericArguments()[ 0 ] )
.ToList();
}
}
}