Frickin' Lasers

OpenRa.Game/Effects/LaserZap.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OpenRa.Graphics;
+using OpenRa.Traits;
+using System.Drawing;
+
+namespace OpenRa.Effects
+{
+	class LaserZap : IEffect
+	{
+		readonly int2 from, to;
+		readonly int radius;
+		int timeUntilRemove = 10; // # of frames
+		int totalTime = 10;
+		Color color;
+		
+		public LaserZap(int2 from, int2 to, int radius, Color color)
+		{
+			this.from = from;
+			this.to = to;
+			this.color = color;
+			this.radius = radius;
+		}
+
+		public void Tick(World world)
+		{
+			if (timeUntilRemove <= 0)
+				world.AddFrameEndTask(w => w.Remove(this));
+			--timeUntilRemove;
+		}
+
+		public IEnumerable<Renderable> Render()
+		{
+			int alpha = (int)((1-(float)(totalTime-timeUntilRemove)/totalTime)*255);
+			Color rc = Color.FromArgb(alpha,color);
+			
+			for (int i = -radius; i < radius; i++)
+				Game.world.WorldRenderer.lineRenderer.DrawLine(from + new int2(i, 0), to + new int2(i, 0), rc, rc);
+			
+			yield break;
+		}
+	}
+}