move generic Voxel render traits to Mods.Common

OpenRA.Mods.Common/Traits/Render/WithVoxelTurret.cs

@@ -0,0 +1,72 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2015 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using System.Collections.Generic;
+using System.Linq;
+using OpenRA.Graphics;
+using OpenRA.Mods.Common.Graphics;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	public class WithVoxelTurretInfo : ITraitInfo, IRenderActorPreviewVoxelsInfo, Requires<RenderVoxelsInfo>, Requires<TurretedInfo>
+	{
+		[Desc("Voxel sequence name to use")]
+		public readonly string Sequence = "turret";
+
+		[Desc("Turreted 'Turret' key to display")]
+		public readonly string Turret = "primary";
+
+		public object Create(ActorInitializer init) { return new WithVoxelTurret(init.Self, this); }
+
+		public IEnumerable<VoxelAnimation> RenderPreviewVoxels(ActorPreviewInitializer init, RenderVoxelsInfo rv, string image, WRot orientation, int facings, PaletteReference p)
+		{
+			var body = init.Actor.Traits.Get<BodyOrientationInfo>();
+			var t = init.Actor.Traits.WithInterface<TurretedInfo>()
+				.First(tt => tt.Turret == Turret);
+
+			var voxel = VoxelProvider.GetVoxel(image, Sequence);
+			var turretOffset = body.LocalToWorld(t.Offset.Rotate(orientation));
+
+			var turretFacing = init.Contains<TurretFacingInit>() ? init.Get<TurretFacingInit, int>() : t.InitialFacing;
+			var turretBodyOrientation = new WRot(WAngle.Zero, WAngle.Zero, WAngle.FromFacing(turretFacing) - orientation.Yaw);
+			var turretOrientation = new[] { turretBodyOrientation, body.QuantizeOrientation(orientation, facings) };
+			yield return new VoxelAnimation(voxel, () => turretOffset, () => turretOrientation, () => false, () => 0);
+		}
+	}
+
+	public class WithVoxelTurret
+	{
+		readonly Actor self;
+		readonly Turreted turreted;
+		readonly IBodyOrientation body;
+
+		public WithVoxelTurret(Actor self, WithVoxelTurretInfo info)
+		{
+			this.self = self;
+			body = self.Trait<IBodyOrientation>();
+			turreted = self.TraitsImplementing<Turreted>()
+				.First(tt => tt.Name == info.Turret);
+
+			var rv = self.Trait<RenderVoxels>();
+			rv.Add(new VoxelAnimation(VoxelProvider.GetVoxel(rv.Image, info.Sequence),
+				() => turreted.Position(self), TurretRotation,
+				() => false, () => 0));
+		}
+
+		IEnumerable<WRot> TurretRotation()
+		{
+			var b = self.Orientation;
+			var qb = body.QuantizeOrientation(self, b);
+			yield return turreted.LocalOrientation(self) + WRot.FromYaw(b.Yaw - qb.Yaw);
+			yield return qb;
+		}
+	}
+}