move projectile effects into mod

OpenRA.Mods.RA/Effects/LaserZap.cs

@@ -0,0 +1,84 @@
+#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 System.Collections.Generic;
+using System.Drawing;
+using OpenRA.Effects;
+using OpenRA.GameRules;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA.Effects
+{
+	class LaserZapInfo : IProjectileInfo
+	{
+		public readonly int BeamRadius = 1;
+		public readonly bool UsePlayerColor = false;
+
+		public IEffect Create(ProjectileArgs args) 
+		{
+			Color c = UsePlayerColor ? args.firedBy.Owner.Color : Color.Red;
+			return new LaserZap(args, BeamRadius, c);
+		}
+	}
+
+	class LaserZap : IEffect
+	{
+		ProjectileArgs args;
+		readonly int radius;
+		int timeUntilRemove = 10; // # of frames
+		int totalTime = 10;
+		Color color;
+		bool doneDamage = false;
+		
+		public LaserZap(ProjectileArgs args, int radius, Color color)
+		{
+			this.args = args;
+			this.color = color;
+			this.radius = radius;
+		}
+
+		public void Tick(World world)
+		{
+			if (timeUntilRemove <= 0)
+				world.AddFrameEndTask(w => w.Remove(this));
+			--timeUntilRemove;
+			
+			if (!doneDamage)
+			{
+				Combat.DoImpacts(args);
+				doneDamage = true;
+			}
+		}
+
+		public IEnumerable<Renderable> Render()
+		{
+			int alpha = (int)((1-(float)(totalTime-timeUntilRemove)/totalTime)*255);
+			Color rc = Color.FromArgb(alpha,color);
+			
+			float2 unit = 1.0f/(args.src - args.dest).Length*(args.src - args.dest).ToFloat2();
+			float2 norm = new float2(-unit.Y, unit.X);
+			
+			for (int i = -radius; i < radius; i++)
+				Game.world.WorldRenderer.DrawLine(args.src + i * norm, args.dest + i * norm, rc, rc);
+			
+			yield break;
+		}
+	}
+}