Creation of Font class and code update accordingly

font_api/tools/make_font_lua.sh

@@ -3,6 +3,17 @@
 scriptname=$(basename $0)
 identify="identify"
 
+usage() {
+	echo "Usage: $0 fontname"
+	echo "fontname: The name of the font. Must correspond to existing texture/font_<fontname>_????.png files"
+}
+
+if [ $# -ne 1 ]
+then
+	usage
+	exit 1
+fi
+
 font_name=$1
 
 for f in textures/font_${font_name}_????.png
@@ -41,8 +52,12 @@ $luafile generated by $scriptname $(LANG=en_US date)
 
 font_api.register_font(
 	'$font_name',
-	$font_height,
-	{ $font_widths }
+	{
+		height = $font_height,
+		widths = {
+			$font_widths
+		},
+	}
 );
 " > font_$font_name.lua