IF within IF

Hello fellow SL users,

I'm in need of help. My design of script isn't giving what I want. Let me start by telling you what I want. Simply put, I want the user to undergo levels of IF within IF, within IFs... ---> so on. These also need to be user inputs, back in C++, it is simply the command "cin < input_integer/string/etc" which acts as user-input, the small piece of puzzle I'm looking for:

//introduce all parameters such as
string userinput1;
string userinput2;
etc...

//llListen function to listen for user input
//First user input
if(userinput1 == "user_input_level1"
llSay (You've entered level 1)

//Now, provided that the user has entered level 1, he/she can enter level 2 function
//second input
if (userinput2 == "user_input_level2"
llSay(You've entered level 2)

And the situation continues

So, basically, what I'm confused about is making a NESTED-IF statements, SL allowed me to through user first input, but beyond that, I can't figure out how to allow further inputs to be affected (based on "provided user has inserted first level"

Yes, I've made a situation where it's all IF functions, unfortunately that's not what I want, the user HAS to input the first command before getting allowance to second level of IF function.

I'm afraid I've lost you back then.. please let me know if this post is confusing, I'm sorry but I'm trying to make it understandable! Thank you very much in advance for your help!

Wrong forum for help on this - best go to the Scripting Tips. Helpful people there may have more insight that I can offer.
Also, maybe the wiki can help - http://lslwiki.net/lslwiki/wakka.php?wakka=ifelse

if(something) { // { means "start block here"
thingy();
if(something_else) { // nested block
thongy();
} // end nested block
} // end outer block

and do not forget, there is also "else" statement.


if(blah){
llDoThis();
}
else if (blahblah){
llDoThat();
}
else{
CatchException()
}


The LSL Portal is a great resource for scripting.
http://wiki.secondlife.com/wiki/LSL_Portal

There is also the lslwiki.net but it is pretty much the same thing. Use which ever you prefer.

In case you didn't figure it out from above, the curly braces are the key. "{" and "}".

Also, to see the code indented the way it was written in the posts, hit the "Quote" button for the post.

Accurate as that info is, I suspect its not all that helpful to the OP.

By the looks of it, he needs to check if previous inputs have been received, based on the results of a Listen event. So after receiving the first Listen message, he can then wait for a second (and maybe a third, fourth, nth).

At the time the program gets the nth message, the value of the first will not be available for comparison unless it's been stored or a flag set.


So (simplified):

listen(message)
{
if(message == first_input)
{
set first_input_flag;
say "Level 1";
}

if(message == second input && first_input_flag)
{
say "Level 2";
}
}

You could avoid flags by using a separate state for each level:

default
{

listen(message)
{
if(message == first_input)
{
say "level 1";
state level2;
}
}

}


state level2
{

listen(message)
{
if(message == second_input)
{
say "level 2";
}
}

}

edit: should have left this for the scripting forum.

reference one function, store your answers as a series of bitwise arguments, that gives you 32 levels of if testing, with recorded answers to differentiate, then each new level of question will generate a new level of decisions (and please use a binary tree, to parse it all, for your own sake)

Spot on, this is the one I'm looking for, I'll be practicing the code. Thanks heaps Kelli! I'll keep this posted!

Good job of reading between the lines to make sense out of the question.

Hi all,

I've got several questions... Ok, this might look tedious, but I promise you, the codes are simple to understand and I'm doing my best to make you understand so you can help me

Firstly, how do you set flags? Like what Killie has mentioned earlier...
Secondly, I can predict there are going to be in-depth levels which the user will get up to in order to reach the state so, simply said... will this work? --> EXAMPLE: if(message == "plugged" && second_input_flag && third_input_flag && fourth_input_flag ... and maybe about 3 more???) Will this work?
Third, if I want to display the data which the user has inserted, can I do the following?
EXAMPLE: User is in the last state (in this eg, we'll take 3 levels)

//First Stage---------------------------------------------------------------------
if(message == "plugged"
{
first_input_flag //I still don't know how to initiate a first_input_flag
llSay (0, "Your TV is plugged."
}
else
{
llSay (0, " Hang on, you haven't inserted the correct command or you're not in the right stage yet."
}
//Second Stage----------------------------------------------------------------
if(message == "switched on" && first_input_flag)
{
second_input_flag
llSay (0, "Well done, so you've already plugged and switched on your TV! Let's configure it next."
}
else
{
llSay (0, " Hang on, you haven't inserted the correct command or you're not in the right stage yet."
}
//Third Stage------------------------------------------------------------------
if(message == "configuration terminal" && second_input_flag)
{
third_input_flag
llSay (0, "Ok, you are now in configuration mode, please type in XXXXX to config."
}
else
{
llSay (0, " Hang on, you haven't inserted the correct command or you're not in the right stage yet."
}

//My 3rd question-----------------------------------------------------
if(message == "show version"
{
llSay (0, "The following data are the version of TV you have and the configuration you've made: \n"
llSay (0, "Type: " <--- This is where I get confused, i can simply type-in: "Type: Toshiba/SONY, etc..." but I want it to display whatever the user has inserted, how do I do that?

Therefore, when user inputs "show version", it will whisper/say.... whatever parameters they have introduced, of course there will be restrictions like some inputs MUST be integers, or strings.. If you don't get what I mean... EXAMPLE:
Type: (this input must be a mix between words and numbers, maybe a string will do) Toshiba X31512
2-Quad-Processor: (This input must be simply numbers => integer) 4

That's what I mean...

Thank you all for your time and help, I really appreciate all inputs.
Regards,
Prano

I suggest when talking code it's better to post in scripting tips... you'll get faster and more indepth replies