Callfunc help

[Onairda]

Hello

 

Good day!

 

I am planning to create a Global function that will be used by different NPCs at the same time, and this Global function requires the variable. please see the below.

I have an Idea in C#, but not sure how this will work with Rathena

//------------------------

Test.txt - SCript

Prontera,150,150  - - - -{

mes "Input  1st Number:";

input .@FirstNumber;

next;

mes "Input  2nd Number:";

input .@SecondNumber;

.@total = callfunc add_numbers(.@FirstNumber, .@secondNumber)

}

 

//------------------------

GlobalFunc.txt - Script

GLOBAL function add_numbers(a, b)

 result = a + b

query_sql(Insert result to addition_tbl) 

return result

end
 

Edited October 11, 2023 by G-RO

[friomixx]

---------------------------------------

*callfunc "<function>"{,<argument>,...<argument>};
*callfunc("<function>"{,<argument>,...<argument>})

This command lets you call up a function NPC. A function NPC can be called from
any script on any map server. Using the 'return' command it will come back to
the place that called it.

	place,50,50,6%TAB%script%TAB%Woman%TAB%115,{
		mes "[Woman]"
		mes "Let's see if you win...";
		callfunc "funcNPC";
		mes "Well done, you have won!";
		close;
	}
	function%TAB%script%TAB%funcNPC%TAB%{
		.@win = rand(2);
		if (.@win == 0)
			return;
		mes "Sorry, you lost.";
		close;
	}

You can pass arguments to your function - values telling it what exactly to do -
which will be available there with getarg() (see 'getarg')
Notice that returning is not mandatory, you can end execution right there.

If you want to return a real value from inside your function NPC, it is better
to write it in the function form, which will also work and will make the script
generally cleaner:

	place,50,50,6%TAB%script%TAB%Man%TAB%115,{
		mes "[Man]"
		mes "Gimme a number!";
		next;
		input .@number;
		if (callfunc("OddFunc",.@number)) mes "It's Odd!";
		close;
	}
	function%TAB%script%TAB%OddFunc%TAB%{
		if (getarg(0)%2 == 0)
			return 0;// it's even
		return 1;// it's odd
	}

Alternately, as of rAthena revision 15979 and 15981, user-defined functions
may be called directly without the use of the 'callfunc' script command.

	function<tab>script<tab>SayHello<tab>{
		mes "Hello " + getarg(0);
		return 0;
	}

	place,50,50,6<tab>script<tab>Man<tab>115,{
		mes "[Man]";
		SayHello strcharinfo(0);
		close;
	}

Note:

 !! A user-defined function must be declared /before/ a script attempts to
 !! call it. That is to say, any functions should be placed above scripts or NPCs
 !! (or loaded in a separate file first) before attempting to call them directly.

---------------------------------------

https://github.com/rathena/rathena/blob/master/doc/script_commands.txt

[Emistry]

function	script	add_numbers	{
	.@number_1 = getarg(0, 0);
	.@number_2 = getarg(1, 0);
	query_sql("INSERT INTO `table` (`value1`, `value2`) VALUES ("+.@number_1+", "+.@number_2+")");
	return (.@number_1 + .@number_2);
}

@sum = callfunc("add_numbers", 100, 200);

.