(svn r17612) -Feature: possibility to choose (randomise or enter custom) town name before its creation (original patch by Terkhen)

src/townname_type.h

@@ -0,0 +1,42 @@
+/* $Id$ */
+
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD 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, version 2.
+ * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file townname_type.h
+ * Definition of structures used for generating town names.
+ */
+
+#ifndef TOWNNAME_TYPE_H
+#define TOWNNAME_TYPE_H
+
+#include "newgrf_townname.h"
+
+/**
+ * Struct holding a parameters used to generate town name.
+ * Speeds things up a bit because these values are computed only once per name generation.
+ */
+struct TownNameParams {
+	uint32 grfid; ///< newgrf ID (0 if not used)
+	uint16 type;  ///< town name style
+
+	/**
+	 * Initializes this struct from language ID
+	 * @param town_name town name 'language' ID
+	 */
+	TownNameParams(byte town_name)
+	{
+		extern int _nb_orig_names;
+		bool grf = town_name >= _nb_orig_names;
+		this->grfid = grf ? GetGRFTownNameId(town_name - _nb_orig_names) : 0;
+		this->type = grf ? GetGRFTownNameType(town_name - _nb_orig_names) : SPECSTR_TOWNNAME_START + town_name;
+	}
+
+	TownNameParams(const struct Town *t);
+};
+
+#endif /* TOWNNAME_TYPE_H */