X-Git-Url: http://git.osdn.jp/view?a=blobdiff_plain;f=dev4%2Fpsychlops%2Fcore%2Fdevice%2Fclock.cs;fp=dev4%2Fpsychlops%2Fcore%2Fdevice%2Fclock.cs;h=bc528212ac74d84a9ad37f41b29de62451fff053;hb=cb8916a7a5cd929f57b3f9edd99209680db90546;hp=0000000000000000000000000000000000000000;hpb=e05ab8e68d381f8f5c9a2ddb7c63b89a7bb6371a;p=psychlops%2Fsilverlight.git

diff --git a/dev4/psychlops/core/device/clock.cs b/dev4/psychlops/core/device/clock.cs
new file mode 100644
index 0000000..bc52821
--- /dev/null
+++ b/dev4/psychlops/core/device/clock.cs
@@ -0,0 +1,60 @@
+using System;
+
+namespace Psychlops
+{
+
+	public struct Clock
+	{
+		long ticks;
+		// where ticks unit is 100 nano seconds.
+
+		public void update()
+		{
+			ticks = DateTime.Now.Ticks;
+		}
+		public long at_msec()
+		{
+			return ticks/10000;
+		}
+
+		public static Clock operator +(Clock lhs, Clock rhs)
+		{
+			return new Clock { ticks = lhs.ticks + rhs.ticks };
+		}
+		public static Clock operator -(Clock lhs, Clock rhs)
+		{
+			return new Clock { ticks = lhs.ticks - rhs.ticks };
+		}
+
+		public static bool operator ==(Clock lhs, Clock rhs)
+		{
+			return lhs.ticks == rhs.ticks;
+		}
+		public static bool operator !=(Clock lhs, Clock rhs)
+		{
+			return lhs.ticks != rhs.ticks;
+		}
+		public static bool operator >(Clock lhs, Clock rhs)
+		{
+			return lhs.ticks > rhs.ticks;
+		}
+		public static bool operator <(Clock lhs, Clock rhs)
+		{
+			return lhs.ticks < rhs.ticks;
+		}
+		public static bool operator >=(Clock lhs, Clock rhs)
+		{
+			return lhs.ticks >= rhs.ticks;
+		}
+		public static bool operator <=(Clock lhs, Clock rhs)
+		{
+			return lhs.ticks <= rhs.ticks;
+		}
+
+		public override string ToString()
+		{
+			return ticks.ToString();
+		}
+	}
+
+}