diff -r eec5a7dcbf61 -r fcf5fb2548eb src/signal_type.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/signal_type.h	Tue Apr 15 00:47:19 2008 +0000
@@ -0,0 +1,24 @@
+/* $Id$ */
+
+/** @file signal_type.h Types and classes related to signals. */
+
+#ifndef SIGNAL_TYPE_H
+#define SIGNAL_TYPE_H
+
+/** Variant of the signal, i.e. how does the signal look? */
+enum SignalVariant {
+	SIG_ELECTRIC  = 0, ///< Light signal
+	SIG_SEMAPHORE = 1  ///< Old-fashioned semaphore signal
+};
+
+
+/** Type of signal, i.e. how does the signal behave? */
+enum SignalType {
+	SIGTYPE_NORMAL  = 0, ///< normal signal
+	SIGTYPE_ENTRY   = 1, ///< presignal block entry
+	SIGTYPE_EXIT    = 2, ///< presignal block exit
+	SIGTYPE_COMBO   = 3  ///< presignal inter-block
+};
+
+
+#endif /* SIGNAL_TYPE_H */