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.Common/Traits/Render/WithMoveAnimation.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.Linq;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits.Render
+{
+	public class WithMoveAnimationInfo : ConditionalTraitInfo, Requires<WithSpriteBodyInfo>, Requires<IMoveInfo>
+	{
+		[SequenceReference]
+		[Desc("Displayed while moving.")]
+		public readonly string MoveSequence = "move";
+
+		[Desc("Which sprite body to modify.")]
+		public readonly string Body = "body";
+
+		[Desc("Apply condition on listed movement types. Available options are: None, Horizontal, Vertical, Turn.")]
+		public readonly MovementType ValidMovementTypes = MovementType.Horizontal;
+
+		public override object Create(ActorInitializer init) { return new WithMoveAnimation(init, this); }
+
+		public override void RulesetLoaded(Ruleset rules, ActorInfo ai)
+		{
+			var matches = ai.TraitInfos<WithSpriteBodyInfo>().Count(w => w.Name == Body);
+			if (matches != 1)
+				throw new YamlException("WithMoveAnimation needs exactly one sprite body with matching name.");
+
+			base.RulesetLoaded(rules, ai);
+		}
+	}
+
+	public class WithMoveAnimation : ConditionalTrait<WithMoveAnimationInfo>, INotifyMoving
+	{
+		readonly IMove movement;
+		readonly WithSpriteBody wsb;
+
+		public WithMoveAnimation(ActorInitializer init, WithMoveAnimationInfo info)
+			: base(info)
+		{
+			movement = init.Self.Trait<IMove>();
+			wsb = init.Self.TraitsImplementing<WithSpriteBody>().Single(w => w.Info.Name == Info.Body);
+		}
+
+		void UpdateAnimation(Actor self, MovementType types)
+		{
+			var playAnim = false;
+			if (!IsTraitDisabled && (types & Info.ValidMovementTypes) != 0)
+				playAnim = true;
+
+			if (!playAnim && wsb.DefaultAnimation.CurrentSequence.Name == Info.MoveSequence)
+			{
+				wsb.CancelCustomAnimation(self);
+				return;
+			}
+
+			if (playAnim && wsb.DefaultAnimation.CurrentSequence.Name != Info.MoveSequence)
+				wsb.PlayCustomAnimationRepeating(self, Info.MoveSequence);
+		}
+
+		void INotifyMoving.MovementTypeChanged(Actor self, MovementType types)
+		{
+			UpdateAnimation(self, types);
+		}
+
+		protected override void TraitEnabled(Actor self)
+		{
+			// HACK: Use a FrameEndTask to avoid construction order issues with WithSpriteBody
+			self.World.AddFrameEndTask(w => UpdateAnimation(self, movement.CurrentMovementTypes));
+		}
+
+		protected override void TraitDisabled(Actor self)
+		{
+			UpdateAnimation(self, movement.CurrentMovementTypes);
+		}
+	}
+}