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/Crushable.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 OpenRA.Primitives;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[Desc("This actor is crushable.")]
+	sealed class CrushableInfo : ConditionalTraitInfo
+	{
+		[Desc("Sound to play when being crushed.")]
+		public readonly string CrushSound = null;
+		[Desc("Which crush classes does this actor belong to.")]
+		public readonly BitSet<CrushClass> CrushClasses = new("infantry");
+		[Desc("Probability of mobile actors noticing and evading a crush attempt.")]
+		public readonly int WarnProbability = 75;
+		[Desc("Will friendly units just crush me instead of pathing around.")]
+		public readonly bool CrushedByFriendlies = false;
+
+		public override object Create(ActorInitializer init) { return new Crushable(init.Self, this); }
+	}
+
+	sealed class Crushable : ConditionalTrait<CrushableInfo>, ICrushable, INotifyCrushed
+	{
+		readonly Actor self;
+
+		public Crushable(Actor self, CrushableInfo info)
+			: base(info)
+		{
+			this.self = self;
+		}
+
+		void INotifyCrushed.WarnCrush(Actor self, Actor crusher, BitSet<CrushClass> crushClasses)
+		{
+			if (!CrushableInner(crushClasses, crusher.Owner))
+				return;
+
+			var mobile = self.TraitOrDefault<Mobile>();
+			if (mobile != null && self.World.SharedRandom.Next(100) <= Info.WarnProbability)
+				self.QueueActivity(false, new Nudge(crusher));
+		}
+
+		void INotifyCrushed.OnCrush(Actor self, Actor crusher, BitSet<CrushClass> crushClasses)
+		{
+			if (!CrushableInner(crushClasses, crusher.Owner))
+				return;
+
+			Game.Sound.Play(SoundType.World, Info.CrushSound, crusher.CenterPosition);
+
+			var crusherMobile = crusher.TraitOrDefault<Mobile>();
+			self.Kill(crusher, crusherMobile != null ? crusherMobile.Info.LocomotorInfo.CrushDamageTypes : default);
+		}
+
+		bool ICrushable.CrushableBy(Actor self, Actor crusher, BitSet<CrushClass> crushClasses)
+		{
+			return CrushableInner(crushClasses, crusher.Owner);
+		}
+
+		LongBitSet<PlayerBitMask> ICrushable.CrushableBy(Actor self, BitSet<CrushClass> crushClasses)
+		{
+			if (IsTraitDisabled || !Info.CrushClasses.Overlaps(crushClasses))
+				return self.World.NoPlayersMask;
+
+			return Info.CrushedByFriendlies ? self.World.AllPlayersMask : self.World.AllPlayersMask.Except(self.Owner.AlliedPlayersMask);
+		}
+
+		bool CrushableInner(BitSet<CrushClass> crushClasses, Player crushOwner)
+		{
+			if (IsTraitDisabled)
+				return false;
+
+			if (!Info.CrushedByFriendlies && crushOwner.IsAlliedWith(self.Owner))
+				return false;
+
+			return Info.CrushClasses.Overlaps(crushClasses);
+		}
+
+		protected override void TraitEnabled(Actor self)
+		{
+			self.World.ActorMap.UpdateOccupiedCells(self.OccupiesSpace);
+		}
+
+		protected override void TraitDisabled(Actor self)
+		{
+			self.World.ActorMap.UpdateOccupiedCells(self.OccupiesSpace);
+		}
+	}
+}