X-Git-Url: http://git.osdn.jp/view?a=blobdiff_plain;ds=inline;f=dev5%2Fpsychlops%2Fcore%2Fdevices%2Fclock.cs;fp=dev5%2Fpsychlops%2Fcore%2Fdevices%2Fclock.cs;h=f4a3ebfee9d8525903a2bd4c86add6645c9cfd13;hb=08bcb090f6a3e6ee38c712571f24b57a4dd32fb4;hp=0000000000000000000000000000000000000000;hpb=7fe25aa821826f09903fb14def74d6b0376e3b5a;p=psychlops%2Fsilverlight.git

diff --git a/dev5/psychlops/core/devices/clock.cs b/dev5/psychlops/core/devices/clock.cs
new file mode 100644
index 0000000..f4a3ebf
--- /dev/null
+++ b/dev5/psychlops/core/devices/clock.cs
@@ -0,0 +1,64 @@
+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 override int GetHashCode()
+		{
+			return ticks.GetHashCode();
+		}
+		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();
+		}
+	}
+
+}