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Newbie Joined: 13 Jun 2007 Posts: 5

I apologize if this is a dumb question or a repeat; I searched but couldn't find anything.

In reading documentation, I can't find an exact reference to the difference between %command and #command usage?

Is it just general syntax, use the one you prefer, or do they actually function differently?

Posted: Thu Jun 14, 2007 10:45 am

% is a function, # is a command. Commands return no values, they only do things. Functions mostly return values - some do things as well. CMUD always needs to be executing a command (you can't have a function on a line on its own, it needs to at least use the #call command). The only exception is when you want to send text to the MUD, but even then you need at least one "command word" before the function call.

%function(%-1)
won't work

#call %function(%-1)
say %function(%-1)
will work.

Wizard Joined: 15 Jan 2002 Posts: 1644 Location: USA

I made a nice little post awhile back about the differance

you can use just a function on the line by itself, a function returns and/or executes something (for the most part) while a command does something (again for the most part)

#CALL in the simpilest terms just eats the return value so it doesnt get sent to the mud/script, This is usefull for when your %function does something as well as returns something and your not interested in the return :p

Let's compare #ADDITEM and %additem
#ADDITEM adds a list item to your variable (it does something)
%additem returns the value of @varname with the item added to it.

#ADDITEM varname value //This will add the item value to the list variable varname
%additem(blah,@varname) //will send to the mud the @varname list with blah added to it
#SAY %additem(blah,@varname) //Will send to your screen in the forum of an info message @varname list with blah added to it
#CALL %additem(blah,@varname) //won't do a darn thing (that you can see), %additem by itself just returns something.
#VAR varname {%additem(blah,@varname)} //This tells #VAR to use the return of %additem as the new value for varname

I prolly just confused you :p