remove spurious IProducer interface; add IBlocksBullets and move Wall

OpenRA.Mods.RA/OpenRA.Mods.RA.csproj

@@ -173,6 +173,7 @@
     <Compile Include="ThrowsParticles.cs" />
     <Compile Include="TraitsInterfaces.cs" />
     <Compile Include="DefaultShellmapScript.cs" />
+    <Compile Include="Wall.cs" />
     <Compile Include="WaterPaletteRotation.cs" />
     <Compile Include="WithMuzzleFlash.cs" />
     <Compile Include="WithShadow.cs" />

OpenRA.Mods.RA/Wall.cs

@@ -0,0 +1,57 @@
+#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.Collections.Generic;
+using System.Linq;
+using OpenRA.GameRules;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA
+{
+	public class WallInfo : ITraitInfo
+	{
+		public readonly UnitMovementType[] CrushableBy = { };
+
+		public object Create(Actor self) { return new Wall(self); }
+	}
+
+	public class Wall : ICrushable, IOccupySpace, IBlocksBullets
+	{
+		readonly Actor self;
+		public Wall(Actor self)
+		{
+			this.self = self;
+			self.World.WorldActor.traits.Get<UnitInfluence>().Add(self, this);
+		}
+
+		public IEnumerable<int2> OccupiedCells() { yield return self.Location; }
+
+		public void OnCrush(Actor crusher) { self.InflictDamage(crusher, self.Health, null); }
+		public bool IsCrushableBy(UnitMovementType umt, Player player)
+		{
+			return self.Info.Traits.Get<WallInfo>().CrushableBy.Contains(umt);
+		}
+
+		public bool IsPathableCrush(UnitMovementType umt, Player player)
+		{
+			return IsCrushableBy(umt, player);
+		}
+	}
+}