Replace old active block random node modifying things with actual ActiveBlockModifiers

src/content_abm.h

@@ -0,0 +1,33 @@
+/*
+Minetest-c55
+Copyright (C) 2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef CONTENT_ABM_HEADER
+#define CONTENT_ABM_HEADER
+
+class ServerEnvironment;
+class INodeDefManager;
+
+/*
+	Legacy ActiveBlockModifiers
+*/
+
+void add_legacy_abms(ServerEnvironment *env, INodeDefManager *nodedef);
+
+#endif
+