64 lines
1.9 KiB
C#
64 lines
1.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.IO;
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using OpenRa.Game.Graphics;
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namespace OpenRa.Game.GameRules
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{
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static class Footprint
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{
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public static IEnumerable<int2> Tiles( UnitInfo unitInfo, int2 position )
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{
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var buildingInfo = unitInfo as UnitInfo.BuildingInfo;
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var dim = buildingInfo.Dimensions;
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var footprint = buildingInfo.Footprint.ToCharArray().Where( x => !char.IsWhiteSpace( x ) );
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if( buildingInfo.Bib )
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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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foreach( var tile in TilesWhere( unitInfo.Name, dim, footprint.ToArray(), a => a != '_' ) )
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yield return tile + position - AdjustForBuildingSize( buildingInfo );
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}
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public static IEnumerable<int2> UnpathableTiles( UnitInfo unitInfo, int2 position )
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{
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var buildingInfo = unitInfo as UnitInfo.BuildingInfo;
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var footprint = buildingInfo.Footprint.ToCharArray().Where( x => !char.IsWhiteSpace( x ) ).ToArray();
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foreach( var tile in TilesWhere( unitInfo.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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{
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for( int x = 0 ; x < dim.X ; x++ )
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{
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if( cond( footprint[ index ] ) )
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yield return new int2( x, y );
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++index;
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}
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}
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}
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public static int2 AdjustForBuildingSize( string name )
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{
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return AdjustForBuildingSize( Rules.UnitInfo[ name ] as UnitInfo.BuildingInfo );
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}
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public static int2 AdjustForBuildingSize( UnitInfo.BuildingInfo unitInfo )
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{
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var dim = unitInfo.Dimensions;
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return new int2( dim.X / 2, ( dim.Y + 1 ) / 2 );
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}
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}
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}
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