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/ProductionFromMapEdge.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.Primitives;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[Desc("Produce a unit on the closest map edge cell and move into the world.")]
+	sealed class ProductionFromMapEdgeInfo : ProductionInfo
+	{
+		public override object Create(ActorInitializer init) { return new ProductionFromMapEdge(init, this); }
+	}
+
+	sealed class ProductionFromMapEdge : Production
+	{
+		readonly CPos? spawnLocation;
+		readonly IPathFinder pathFinder;
+		RallyPoint rp;
+
+		public ProductionFromMapEdge(ActorInitializer init, ProductionInfo info)
+			: base(init, info)
+		{
+			pathFinder = init.Self.World.WorldActor.Trait<IPathFinder>();
+
+			var spawnLocationInit = init.GetOrDefault<ProductionSpawnLocationInit>(info);
+			if (spawnLocationInit != null)
+				spawnLocation = spawnLocationInit.Value;
+		}
+
+		protected override void Created(Actor self)
+		{
+			base.Created(self);
+
+			rp = self.TraitOrDefault<RallyPoint>();
+		}
+
+		public override bool Produce(Actor self, ActorInfo producee, string productionType, TypeDictionary inits, int refundableValue)
+		{
+			if (IsTraitDisabled || IsTraitPaused)
+				return false;
+
+			var aircraftInfo = producee.TraitInfoOrDefault<AircraftInfo>();
+			var mobileInfo = producee.TraitInfoOrDefault<MobileInfo>();
+
+			var destinations = rp != null && rp.Path.Count > 0 ? rp.Path : [self.Location];
+
+			var location = spawnLocation;
+			if (!location.HasValue)
+			{
+				if (aircraftInfo != null)
+					location = self.World.Map.ChooseClosestEdgeCell(self.Location);
+
+				if (mobileInfo != null)
+				{
+					var locomotor = self.World.WorldActor.TraitsImplementing<Locomotor>().First(l => l.Info.Name == mobileInfo.Locomotor);
+					location = self.World.Map.ChooseClosestMatchingEdgeCell(self.Location,
+						c => mobileInfo.CanEnterCell(self.World, null, c) && pathFinder.PathExistsForLocomotor(locomotor, c, destinations[0]));
+				}
+			}
+
+			// No suitable spawn location could be found, so production has failed.
+			if (!location.HasValue)
+				return false;
+
+			var pos = self.World.Map.CenterOfCell(location.Value);
+
+			// If aircraft, spawn at cruise altitude
+			if (aircraftInfo != null)
+				pos += new WVec(0, 0, aircraftInfo.CruiseAltitude.Length);
+
+			var initialFacing = self.World.Map.FacingBetween(location.Value, destinations[0], WAngle.Zero);
+
+			self.World.AddFrameEndTask(w =>
+			{
+				var td = new TypeDictionary(inits)
+				{
+					new LocationInit(location.Value),
+					new CenterPositionInit(pos),
+					new FacingInit(initialFacing)
+				};
+
+				var newUnit = self.World.CreateActor(producee.Name, td);
+
+				var move = newUnit.TraitOrDefault<IMove>();
+				if (move != null)
+					foreach (var cell in destinations)
+						newUnit.QueueActivity(move.MoveTo(cell, 2, evaluateNearestMovableCell: true));
+
+				if (!self.IsDead)
+					foreach (var t in self.TraitsImplementing<INotifyProduction>())
+						t.UnitProduced(self, newUnit, destinations[0]);
+
+				var notifyOthers = self.World.ActorsWithTrait<INotifyOtherProduction>();
+				foreach (var notify in notifyOthers)
+					notify.Trait.UnitProducedByOther(notify.Actor, self, newUnit, productionType, td);
+			});
+
+			return true;
+		}
+	}
+
+	public class ProductionSpawnLocationInit : ValueActorInit<CPos>
+	{
+		public ProductionSpawnLocationInit(TraitInfo info, CPos value)
+			: base(info, value) { }
+	}
+}