Add TransformsNearResources

OpenRA.Mods.Cnc/Traits/TransformsNearResources.cs

@@ -0,0 +1,102 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2020 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, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using OpenRA.Mods.Common.Activities;
+using OpenRA.Mods.Common.Traits;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Cnc.Traits
+{
+	[Desc("Replace with another actor when a resource spawns adjacent.")]
+	public class TransformsNearResourcesInfo : TraitInfo
+	{
+		[FieldLoader.Require]
+		[ActorReference]
+		public readonly string IntoActor = null;
+
+		public readonly CVec Offset = CVec.Zero;
+
+		[Desc("Don't render the make animation.")]
+		public readonly bool SkipMakeAnims = false;
+
+		[FieldLoader.Require]
+		[Desc("Resource type which triggers the transformation.")]
+		public readonly string Type = null;
+
+		[Desc("Resource density threshold which is required.")]
+		public readonly int Density = 1;
+
+		[Desc("This many adjacent resource tiles are required.")]
+		public readonly int Adjacency = 1;
+
+		[Desc("The range of time (in ticks) until the transformation starts.")]
+		public readonly int[] Delay = { 1000, 3000 };
+
+		public override object Create(ActorInitializer init) { return new TransformsNearResources(init.Self, this); }
+	}
+
+	public class TransformsNearResources : ITick
+	{
+		readonly TransformsNearResourcesInfo info;
+		readonly ResourceLayer resourceLayer;
+		int delay;
+
+		public TransformsNearResources(Actor self, TransformsNearResourcesInfo info)
+		{
+			resourceLayer = self.World.WorldActor.Trait<ResourceLayer>();
+			delay = Common.Util.RandomDelay(self.World, info.Delay);
+			this.info = info;
+		}
+
+		void ITick.Tick(Actor self)
+		{
+			if (delay < 0)
+				return;
+
+			var adjacent = 0;
+			foreach (var direction in CVec.Directions)
+			{
+				var location = self.Location + direction;
+
+				var resource = resourceLayer.GetResourceType(location);
+				if (resource == null || resource.Info.Type != info.Type)
+					continue;
+
+				var density = resourceLayer.GetResourceDensity(location);
+				if (density < info.Density)
+					continue;
+
+				if (++adjacent < info.Adjacency)
+					continue;
+
+				delay--;
+				break;
+			}
+
+			if (delay < 0)
+				Transform(self);
+		}
+
+		void Transform(Actor self)
+		{
+			var transform = new Transform(self, info.IntoActor);
+
+			var facing = self.TraitOrDefault<IFacing>();
+			if (facing != null)
+				transform.Facing = facing.Facing;
+
+			transform.SkipMakeAnims = info.SkipMakeAnims;
+			transform.Offset = info.Offset;
+
+			self.QueueActivity(false, transform);
+		}
+	}
+}

mods/cnc/rules/trees.yaml

@@ -101,6 +101,21 @@ T03:
 	SpawnActorOnDeath:
 		Actor: T03.Husk
 
+T03.Transformable:
+	Inherits: ^Tree
+	RenderSprites:
+		Image: t03
+	MapEditorData:
+		ExcludeTilesets: DESERT
+	SpawnActorOnDeath:
+		Actor: T03.Husk
+	TransformsNearResources:
+		Type: Tiberium
+		IntoActor: split2
+		Offset: 0,1
+	EditorOnlyTooltip:
+		Name: (Tree that can transform into a Blossom Tree)
+
 T03.Husk:
 	Inherits: ^TreeHusk
 	MapEditorData:
@@ -238,6 +253,21 @@ T13:
 	SpawnActorOnDeath:
 		Actor: T13.Husk
 
+T13.Transformable:
+	Inherits: ^Tree
+	RenderSprites:
+		Image: t13
+	MapEditorData:
+		ExcludeTilesets: DESERT
+	SpawnActorOnDeath:
+		Actor: T13.Husk
+	TransformsNearResources:
+		Type: Tiberium
+		IntoActor: split3
+		Offset: 0,1
+	EditorOnlyTooltip:
+		Name: (Tree that can transform into a Blossom Tree)
+
 T13.Husk:
 	Inherits: ^TreeHusk
 	Building:

mods/cnc/sequences/decorations.yaml

@@ -6,6 +6,7 @@ split2:
 			DESERT: TEMPERAT
 	make:
 		Length: 30
+		Tick: 120
 	active:
 		Start: 30
 		Length: 24
@@ -18,6 +19,7 @@ split3:
 		UseTilesetExtension: true
 	make:
 		Length: 30
+		Tick: 120
 	active:
 		Start: 30
 		Length: 24