MotV => MotionBase, FPS -> FpsCounter

2DGAMELIB/_2DGAMELIB/FpsCounter.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Diagnostics;
+
+namespace _2DGAMELIB
+{
+    public class FpsCounter
+    {
+    	public Stopwatch sw = new Stopwatch();
+
+    	private long last_frame;
+    	public double Value;
+
+    	private double ticks_per_frame;
+    	public FpsCounter(double FPS)
+    	{
+    		Value = FPS;
+    		ticks_per_frame = (double)Stopwatch.Frequency / FPS;
+    		sw.Start();
+    		last_frame = sw.ElapsedTicks;
+    	}
+
+    	public void FPSFixed(Action Action)
+    	{
+    		long current_time = sw.ElapsedTicks;
+
+    		if (current_time - last_frame >= ticks_per_frame)
+    		{
+    			Action();
+
+                Value = (9 * Value + ((double)Stopwatch.Frequency / (sw.ElapsedTicks - last_frame)))/10;
+
+                last_frame = current_time;
+    		}
+
+    	}
+    }
+}