Difference between revisions of "Input"

Latest revision as of 22:15, 10 June 2013

Syntax

• input <variable>[, <min value>[, <max value>]];
• input(<variable>[, <min value>[, <max value>]]);

Description

This command will make an input box pop up on the client connected to the invoking character, to allow entering of a string or digits only, depending on variable's type.

Normally you cannot input a negative number with this command, to prevent exploits in badly written scripts, which would let people, for example, put negative amounts of Zeny into a bank script and receive free Zeny as result. The default values for min value and max value are specified as input_min_value and input_max_value respectively in conf/script.conf.

The command has two additional optional arguments and a return value to safely override this behavior, when required. Depending on the variable type used, the min, max, and return value have different meanings:

• For strings min and max specify the minimum and maximum string length. The return value is -1, if the string was too short, 1, if it was too long, otherwise 0.
• For numbers min and max specify the minimum and maximum value, the variable is allowed to be set to. If the entered value is outside the specified range [min,max], it is capped to the nearest valid value. The return value is -1 for too small values, 1 for too large values, otherwise 0.

Examples

mes "[Woman]";
mes "Try and guess the number I am thinking of.";
mes "The number will be between 1 and 10.";
next;

set .@number, rand(1, 10);
while(input(.@guess, 1, 10))
{
    mes "[Woman]";
    mes "Didn't you listen before? The number is between 1 and 10.";
    next;
}

mes "[Woman]";
if(.@guess==.@number)
{
    mes "Well done, that was the number I was thinking of.";
}
else
{
    mes "Sorry, that wasn't the number I was thinking of.";
}
close;

mes "[Man]";
mes "You need a password to pass.";
next;

input .@pwd$;
if(.@pwd$!="s3cr3t")
{
    mes "[Man]";
    mes "Get out.";
    close;
}