husk experiment

OpenRA.Mods.RA/ThrowsParticles.cs

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+#region Copyright & License Information
+/*
+ * Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
+ * This file is part of OpenRA.
+ * 
+ *  OpenRA is free software: you can redistribute it and/or modify
+ *  it 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.
+ * 
+ *  OpenRA is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ * 
+ *  You should have received a copy of the GNU General Public License
+ *  along with OpenRA.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#endregion
+
+using OpenRA.Traits;
+using OpenRA.Graphics;
+
+namespace OpenRA.Mods.RA
+{
+	class ThrowsParticleInfo : ITraitInfo
+	{
+		public readonly string Anim = null;
+		public readonly int[] Offset = new[] { 0, 0, 0, 0 };
+		public readonly int[] Spread = new[] { 0, 0 };
+		public readonly float Speed = 20;
+		public readonly string AnimKey = null;
+		public object Create(Actor self) { return new ThrowsParticle(self, this); }
+	}
+
+	class ThrowsParticle : ITick
+	{
+		ThrowsParticleInfo info;
+		float2 pos;
+		float alt;
+
+		float2 v;
+		float va;
+
+		const float gravity = 1.3f;
+
+		public ThrowsParticle(Actor self, ThrowsParticleInfo info) { this.info = info; }
+	
+		public void Tick(Actor self)
+		{
+			if (info != null)
+			{
+				alt = 0;
+				pos = Util.GetTurretPosition(self, self.traits.Get<Unit>(), info.Offset, 0);
+				var ru = self.traits.Get<RenderUnit>();
+
+				v = Game.CosmeticRandom.Gauss2D(1) * info.Spread.RelOffset();
+				va = info.Speed;
+
+				var anim = new Animation(ru.GetImage(self), () => self.traits.Get<Unit>().Facing);
+				anim.PlayRepeating(info.Anim);
+
+				ru.anims.Add(info.AnimKey, new RenderSimple.AnimationWithOffset(
+					anim, () => pos - new float2(0, alt), null));
+
+				info = null;
+			}
+
+			pos += v;
+			v = .9f * v;
+			va -= gravity;
+			alt += va;
+			if (alt < 0) alt = 0;
+		}
+	}
+}