Added smoke to the nuclear missile silo

OpenRA.Mods.RA2/Traits/Render/WithNuclearMissileSmokeOverlay.cs

@@ -0,0 +1,87 @@
+#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.Graphics;
+using OpenRA.Mods.Common.Traits;
+using OpenRA.Mods.Common.Traits.Render;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA2.Traits.Render
+{
+	[Desc("Displays an overlay when `NukePower` is triggered.")]
+	public class WithNuclearMissileSmokeOverlayInfo : ConditionalTraitInfo, Requires<RenderSpritesInfo>, Requires<BodyOrientationInfo>
+	{
+		[SequenceReference]
+		[Desc("Sequence name to use")]
+		public readonly string Sequence = "smoke";
+
+		[Desc("Position relative to body")]
+		public readonly WVec Offset = WVec.Zero;
+
+		[PaletteReference("IsPlayerPalette")]
+		[Desc("Custom palette name")]
+		public readonly string Palette = null;
+
+		[Desc("Custom palette is a player palette BaseName.")]
+		public readonly bool IsPlayerPalette = false;
+
+		[Desc("Measured in ticks.")]
+		public readonly int Delay = 0;
+
+		public override object Create(ActorInitializer init) { return new WithNuclearMissileSmokeOverlay(init.Self, this); }
+	}
+
+	public class WithNuclearMissileSmokeOverlay : ConditionalTrait<WithNuclearMissileSmokeOverlayInfo>, INotifyNuke, ITick
+	{
+		readonly Animation overlay;
+		bool visible, isLaunched;
+		int launchDelay;
+
+		public WithNuclearMissileSmokeOverlay(Actor self, WithNuclearMissileSmokeOverlayInfo info)
+			: base(info)
+		{
+			var rs = self.Trait<RenderSprites>();
+			var body = self.Trait<BodyOrientation>();
+
+			overlay = new Animation(self.World, rs.GetImage(self));
+			overlay.PlayThen(info.Sequence, () => visible = false);
+
+			var anim = new AnimationWithOffset(overlay,
+				() => body.LocalToWorld(info.Offset.Rotate(body.QuantizeOrientation(self, self.Orientation))),
+				() => IsTraitDisabled || !visible,
+				p => RenderUtils.ZOffsetFromCenter(self, p, 1));
+
+			rs.Add(anim, info.Palette, info.IsPlayerPalette);
+		}
+
+		void INotifyNuke.Launching(Actor self)
+		{
+			isLaunched = true;
+			launchDelay = Info.Delay;
+		}
+
+		void ITick.Tick(Actor self)
+		{
+			if (!isLaunched)
+				return;
+
+			if (launchDelay-- > 0)
+				return;
+
+			if (!visible)
+			{
+				visible = true;
+				overlay.PlayThen(overlay.CurrentSequence.Name, () => visible = false);
+				isLaunched = false;
+			}
+		}
+	}
+}

mods/ra2/rules/soviet-structures.yaml

@@ -873,7 +873,7 @@ namisl:
 		LaunchSound: snuklaun.wav
 		MissileWeapon: atomic
 		MissilePalette: player
-		MissileDelay: 35
+		MissileDelay: 40
 		SpawnOffset: 0,0,-1c0
 		IsPlayerPalette: true
 		DisplayTimerStances: Ally, Neutral, Enemy
@@ -886,6 +886,9 @@ namisl:
 		PauseOnCondition: lowpower
 	WithNukeLaunchAnimation:
 		RequiresCondition: !build-incomplete
+	WithNuclearMissileSmokeOverlay:
+		Delay: 40
+		Palette: effect50alpha
 	SpawnSurvivors:
 		DeathTypes: ExplosionDeath, BulletDeath
 		Actors: e2, e2, e2, e2, e2, e2, e2

mods/ra2/sequences/soviet-structures.yaml

@@ -351,6 +351,9 @@ namisl:
 		Length: 16
 		ShadowStart: 48
 		Tick: 120
+	smoke: nuketo
+		Length: *
+		Tick: 120
 	make: ntmislmk
 		UseTilesetCode: true
 		Length: 26