66 lines
2.0 KiB
C#
66 lines
2.0 KiB
C#
#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;
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using System.Collections.Generic;
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using System.Linq;
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using OpenRA.Traits;
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namespace OpenRA.GameRules
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{
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public static class Footprint
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{
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public static IEnumerable<int2> Tiles( string name, BuildingInfo buildingInfo, int2 topLeft )
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{
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var dim = buildingInfo.Dimensions;
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var footprint = buildingInfo.Footprint.Where(x => !char.IsWhiteSpace(x));
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if (Rules.Info[ name ].Traits.Contains<BibInfo>())
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{
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dim.Y += 1;
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footprint = footprint.Concat(new char[dim.X]);
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}
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return TilesWhere( name, dim, footprint.ToArray(), a => a != '_' ).Select( t => t + topLeft );
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}
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public static IEnumerable<int2> Tiles(Actor a)
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{
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return Tiles( a.Info.Name, a.Info.Traits.Get<BuildingInfo>(), a.Location );
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}
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public static IEnumerable<int2> UnpathableTiles( string name, BuildingInfo buildingInfo, int2 position )
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{
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var footprint = buildingInfo.Footprint.Where( x => !char.IsWhiteSpace( x ) ).ToArray();
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foreach( var tile in TilesWhere( name, buildingInfo.Dimensions, footprint, a => a == 'x' ) )
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yield return tile + position;
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}
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static IEnumerable<int2> TilesWhere( string name, int2 dim, char[] footprint, Func<char, bool> cond )
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{
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if( footprint.Length != dim.X * dim.Y )
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throw new InvalidOperationException( "Invalid footprint for " + name );
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int index = 0;
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for( int y = 0 ; y < dim.Y ; y++ )
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for( int x = 0 ; x < dim.X ; x++ )
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if( cond( footprint[ index++ ] ) )
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yield return new int2( x, y );
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}
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public static int2 AdjustForBuildingSize( BuildingInfo buildingInfo )
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{
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var dim = buildingInfo.Dimensions;
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return new int2( dim.X / 2, dim.Y > 1 ? ( dim.Y + 1 ) / 2 : 0 );
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}
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}
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}
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