ULTIMA1: Beginnings of create_ultima tool

devtools/create_ultima/create_ultima.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ */
+
+ // Disable symbol overrides so that we can use system headers.
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
+// HACK to allow building with the SDL backend on MinGW
+// see bug #1800764 "TOOLS: MinGW tools building broken"
+#ifdef main
+#undef main
+#endif // main
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "archive.h"
+#include "ultima1_map.h"
+
+#define VERSION_NUMBER 1
+
+void NORETURN_PRE error(const char *s, ...) {
+	printf("%s\n", s);
+	exit(1);
+}
+
+int main(int argc, char *argv[]) {
+	Archive archive;
+	if (!archive.open("ultima.dat")) {
+		error("Could not open output file");
+	}
+
+	writeUltima1EnhancedMap(archive);
+
+	archive.close();
+	return 0;
+}