Basic ScreenShaker

OpenRa.Game/Traits/World/ScreenShaker.cs

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+
+using System;
+using OpenRa.Traits;
+
+namespace OpenRa.Traits
+{
+	class ScreenShakerInfo : ITraitInfo
+	{
+		public object Create( Actor self ) { return new ScreenShaker( self ); }
+	}
+	
+	public class ScreenShaker : ITick
+	{
+		int ticks = 0;
+		
+		public ScreenShaker (Actor self){}
+		
+		public void Tick (Actor self)
+		{
+			Game.viewport.Scroll(getScrollOffset());
+			ticks++;
+		}
+		
+		//public void registerShakeEffect(float2 position, int time)
+		//{
+		//}
+		
+		public float2 getScrollOffset()
+		{
+			int xFreq = 4;
+			int yFreq = 5;
+			int intensity = 3;
+			
+			return intensity * new float2( (float) Math.Sin((ticks*2*Math.PI)/xFreq) , (float) Math.Cos((ticks*2*Math.PI)/yFreq));
+		}
+		
+	}
+}