(svn r16400) -Add [NoAI]: add AISignList that can be used to get a list of valid signs. This makes AISign::GetMaxSignID obsolete.

src/ai/api/ai_signlist.hpp

@@ -0,0 +1,20 @@
+/* $Id$ */
+
+/** @file ai_signlist.hpp List all the signs of your company. */
+
+#ifndef AI_SIGNLIST_HPP
+#define AI_SIGNLIST_HPP
+
+#include "ai_abstractlist.hpp"
+
+/**
+ * Create a list of signs your company has created.
+ * @ingroup AIList
+ */
+class AISignList : public AIAbstractList {
+public:
+	static const char *GetClassName() { return "AISignList"; }
+	AISignList();
+};
+
+#endif /* AI_SIGNLIST_HPP */