Added LaunchEffect effect

OpenRA.Mods.Common/Effects/LaunchEffect.cs

@@ -0,0 +1,57 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2018 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 System;
+using System.Collections.Generic;
+using OpenRA.Effects;
+using OpenRA.Graphics;
+
+namespace OpenRA.Mods.Common.Effects
+{
+	public class LaunchEffect : IEffect, ISpatiallyPartitionable
+	{
+		readonly World world;
+		readonly Animation anim;
+		readonly string palette;
+		WPos pos;
+		Func<WPos> posFunc;
+
+		public LaunchEffect(World world, string image, string sequence, string palette)
+			: this(world, () => WPos.Zero, () => 0, image, sequence, palette) { }
+
+		public LaunchEffect(World world, Func<WPos> posFunc, Func<int> facingFunc, string image, string sequence, string palette)
+		{
+			this.world = world;
+			this.posFunc = posFunc;
+			this.palette = palette;
+
+			anim = new Animation(world, image, facingFunc);
+			anim.PlayThen(sequence, () => world.AddFrameEndTask(w => { w.Remove(this); w.ScreenMap.Remove(this); }));
+			pos = posFunc();
+			world.ScreenMap.Add(this, pos, anim.Image);
+		}
+
+		public void Tick(World world)
+		{
+			anim.Tick();
+			pos = posFunc();
+			world.ScreenMap.Update(this, pos, anim.Image);
+		}
+
+		public IEnumerable<IRenderable> Render(WorldRenderer wr)
+		{
+			if (world.FogObscures(pos))
+				return SpriteRenderable.None;
+
+			return anim.Render(pos, wr.Palette(palette));
+		}
+	}
+}

OpenRA.Mods.Common/OpenRA.Mods.Common.csproj

@@ -149,6 +149,7 @@
     <Compile Include="Effects\RallyPointIndicator.cs" />
     <Compile Include="Effects\SpriteEffect.cs" />
     <Compile Include="Graphics\RailgunRenderable.cs" />
+    <Compile Include="Effects\LaunchEffect.cs" />
     <Compile Include="Projectiles\AreaBeam.cs" />
     <Compile Include="Projectiles\Bullet.cs" />
     <Compile Include="Projectiles\InstantHit.cs" />