Add drop pod reinforcements.

OpenRA.Mods.Cnc/Projectiles/DropPodImpact.cs

@@ -0,0 +1,78 @@
+#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 System.Collections.Generic;
+using System.Linq;
+using OpenRA.GameRules;
+using OpenRA.Graphics;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Cnc.Effects
+{
+	public class DropPodImpact : IProjectile
+	{
+		readonly Target target;
+		readonly Animation entryAnimation;
+		readonly Player firedBy;
+		readonly string entryPalette;
+		readonly WeaponInfo weapon;
+		readonly WPos launchPos;
+
+		int weaponDelay;
+		bool impacted = false;
+
+		public DropPodImpact(Player firedBy, WeaponInfo weapon, World world, WPos launchPos, Target target,
+			int delay, string entryEffect, string entrySequence, string entryPalette)
+		{
+			this.target = target;
+			this.firedBy = firedBy;
+			this.weapon = weapon;
+			this.entryPalette = entryPalette;
+			weaponDelay = delay;
+			this.launchPos = launchPos;
+
+			entryAnimation = new Animation(world, entryEffect);
+			entryAnimation.PlayThen(entrySequence, () => Finish(world));
+
+			if (weapon.Report != null && weapon.Report.Any())
+				Game.Sound.Play(SoundType.World, weapon.Report, world, launchPos);
+		}
+
+		public void Tick(World world)
+		{
+			entryAnimation.Tick();
+
+			if (!impacted && weaponDelay-- <= 0)
+			{
+				var warheadArgs = new WarheadArgs
+				{
+					Weapon = weapon,
+					Source = target.CenterPosition,
+					SourceActor = firedBy.PlayerActor,
+					WeaponTarget = target
+				};
+
+				weapon.Impact(target, warheadArgs);
+				impacted = true;
+			}
+		}
+
+		public IEnumerable<IRenderable> Render(WorldRenderer wr)
+		{
+			return entryAnimation.Render(launchPos, wr.Palette(entryPalette));
+		}
+
+		void Finish(World world)
+		{
+			world.AddFrameEndTask(w => w.Remove(this));
+		}
+	}
+}