Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

OpenRA.Mods.Cnc/Traits/Render/WithLandingCraftAnimation.cs

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+#region Copyright & License Information
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * 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, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.Collections.Frozen;
+using System.Collections.Generic;
+using System.Linq;
+using OpenRA.Mods.Common.Traits;
+using OpenRA.Mods.Common.Traits.Render;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Cnc.Traits.Render
+{
+	public class WithLandingCraftAnimationInfo : TraitInfo, Requires<IMoveInfo>, Requires<WithSpriteBodyInfo>, Requires<CargoInfo>
+	{
+		public readonly FrozenSet<string> OpenTerrainTypes = new HashSet<string> { "Clear" }.ToFrozenSet();
+
+		[SequenceReference]
+		public readonly string OpenSequence = "open";
+
+		[SequenceReference]
+		public readonly string CloseSequence = "close";
+
+		[SequenceReference]
+		public readonly string UnloadSequence = "unload";
+
+		[Desc("Which sprite body to play the animation on.")]
+		public readonly string Body = "body";
+
+		public override object Create(ActorInitializer init) { return new WithLandingCraftAnimation(init, this); }
+	}
+
+	public class WithLandingCraftAnimation : ITick
+	{
+		readonly WithLandingCraftAnimationInfo info;
+		readonly Actor self;
+		readonly Cargo cargo;
+		readonly IMove move;
+		readonly WithSpriteBody wsb;
+		bool open;
+
+		public WithLandingCraftAnimation(ActorInitializer init, WithLandingCraftAnimationInfo info)
+		{
+			this.info = info;
+			self = init.Self;
+			cargo = self.Trait<Cargo>();
+			move = self.Trait<IMove>();
+			wsb = init.Self.TraitsImplementing<WithSpriteBody>().Single(w => w.Info.Name == info.Body);
+		}
+
+		public bool ShouldBeOpen()
+		{
+			if (move.CurrentMovementTypes != MovementType.None || self.World.Map.DistanceAboveTerrain(self.CenterPosition).Length > 0)
+				return false;
+
+			return cargo.CurrentAdjacentCells().Any(c => self.World.Map.Contains(c)
+				&& info.OpenTerrainTypes.Contains(self.World.Map.GetTerrainInfo(c).Type));
+		}
+
+		void Open()
+		{
+			if (open || !wsb.DefaultAnimation.HasSequence(info.OpenSequence))
+				return;
+
+			open = true;
+			wsb.PlayCustomAnimation(self, info.OpenSequence, () =>
+			{
+				if (wsb.DefaultAnimation.HasSequence(info.UnloadSequence))
+					wsb.PlayCustomAnimationRepeating(self, info.UnloadSequence);
+			});
+		}
+
+		void Close()
+		{
+			if (!open || !wsb.DefaultAnimation.HasSequence(info.CloseSequence))
+				return;
+
+			open = false;
+			wsb.PlayCustomAnimation(self, info.CloseSequence);
+		}
+
+		void ITick.Tick(Actor self)
+		{
+			if (ShouldBeOpen())
+				Open();
+			else
+				Close();
+		}
+	}
+}