Tell me about typecasting, plz.

does not

default
{
    state_entry()
    {
        llListen(0, "", "", "");
    }
    listen(integer channel, string name, key id, string message)
    {
        llSetColor((vector)message, ALL_SIDES);
    }
}
default
{
    state_entry()
    {
        llListen(0, "", "", "");
    }
    listen(integer channel, string name, key id, string message)
    {
        llSetColor((vector)"<1.0, 0.0, 0.0>", ALL_SIDES);
    }
}
string Red = "<1.0, 0.0, 0.0>";

default
{
    state_entry()
    {
        llListen(0, "", "", "");
    }
    listen(integer channel, string name, key id, string message)
    {
        llSetColor((vector)Red, ALL_SIDES);
    }
}
string Red = "<1.0, 0.0, 0.0>";

default
{
    state_entry()
    {
        llListen(0, "", "", "");
    }
    listen(integer channel, string name, key id, string message)
    {
        llSetColor((vector)message, ALL_SIDES);
    }
}

Vector Red = <1.0, 0.0, 0.0>;

default
{
    state_entry()
    {
        llListen(0, "", "", "");
    }
    listen(integer channel, string name, key id, string message)
    {
if (message == "Red")
{
        llSetColor(Red, ALL_SIDES);
}
    }
}


string red="<1,0,0>"; // sets the variable called "red" to the literal string "<1,0,0>"

string color = "red"; // sets the variable called "color" to the literal string "red"

string vec = red;  // sets the variable called "vec" to the value of the variable called "red"


list colors = ["red",   <1.0, 0.0, 0.0>,
                "green", <0.0, 1.0, 0.0>,
                "blue",  <0.0, 0.0, 1.0>];

default
{
    state_entry()
    {
        llListen(0, "", "", "");
    }
    listen(integer channel, string name, key id, string message)
    {
        integer pos = llListFindList(colors, message);
        if (pos != -1)
        {
            llSetColor(llList2Vector(colors, pos+1), ALL_SIDES);
        }
    }
}

Tell me about typecasting, plz.
Seagel Neville Far East User Join date: 2 Jan 2005 Posts: 1,476	07-19-2006 04:34 You can change color when you said like, "<1.0, 0.0, 0.0>" by the following script. CODE default { state_entry() { llListen(0, "", "", ""); } listen(integer channel, string name, key id, string message) { llSetColor((vector)message, ALL_SIDES); } } Now, you can change color (to red) when you said anything by the following script. CODE default { state_entry() { llListen(0, "", "", ""); } listen(integer channel, string name, key id, string message) { llSetColor((vector)"<1.0, 0.0, 0.0>", ALL_SIDES); } } And this is also available. CODE string Red = "<1.0, 0.0, 0.0>"; default { state_entry() { llListen(0, "", "", ""); } listen(integer channel, string name, key id, string message) { llSetColor((vector)Red, ALL_SIDES); } } But why is it unavailable even when I says, "Red" by the following script? CODE string Red = "<1.0, 0.0, 0.0>"; default { state_entry() { llListen(0, "", "", ""); } listen(integer channel, string name, key id, string message) { llSetColor((vector)message, ALL_SIDES); } } _____________________ Seagel Neville
Ginge Reymont Registered User Join date: 10 Oct 2005 Posts: 190	07-19-2006 05:19 CODE Vector Red = <1.0, 0.0, 0.0>; default { state_entry() { llListen(0, "", "", ""); } listen(integer channel, string name, key id, string message) { if (message == "Red") { llSetColor(Red, ALL_SIDES); } } }
Seagel Neville Far East User Join date: 2 Jan 2005 Posts: 1,476	07-19-2006 05:45 Thanks. But what I wanted to know why it was unavailable. If it were available, I would not have to put down a hundred of if conditions to achieve that. _____________________ Seagel Neville
Bitzer Balderdash Dazed and Confused Join date: 21 Dec 2005 Posts: 246	07-19-2006 06:04 you are mixing up typecasting with inline evaluation or variable redirection. Typecasting means to treat a number as a string, or a string as a vector, it does not allow you to use that value of a variable whose name is the value of another variable. for example CODE string red="<1,0,0>"; // sets the variable called "red" to the literal string "<1,0,0>" string color = "red"; // sets the variable called "color" to the literal string "red" string vec = red; // sets the variable called "vec" to the value of the variable called "red" Do you see the difference between the second and third ones? In your example, you have a variable called "message" which is set to the literal string "Red", which is what you typed. That is not the same as setting it to the value of the variable which happens to be called "Red". If you want to minimise your if clauses, do something like CODE list colors = ["red", <1.0, 0.0, 0.0>, "green", <0.0, 1.0, 0.0>, "blue", <0.0, 0.0, 1.0>]; default { state_entry() { llListen(0, "", "", ""); } listen(integer channel, string name, key id, string message) { integer pos = llListFindList(colors, message); if (pos != -1) { llSetColor(llList2Vector(colors, pos+1), ALL_SIDES); } } }
Seagel Neville Far East User Join date: 2 Jan 2005 Posts: 1,476	07-19-2006 06:35 From: Bitzer Balderdash In your example, you have a variable called "message" which is set to the literal string "Red", which is what you typed. That is not the same as setting it to the value of the variable which happens to be called "Red". Did you say whenever I said, "Red", message turned to be the literal string "Red", not the variable called "Red"? Aha, I'm being confused a bit, but I feel that I'm getting it. Thank you. _____________________ Seagel Neville
Llauren Mandelbrot Twenty-Four Weeks Old. Join date: 26 Apr 2006 Posts: 665	You got it! 07-19-2006 10:33 From: Seagel Neville Did you say whenever I said, "Red", message turned to be the literal string "Red", not the variable called "Red"? Correct! From: Seagel Neville Aha, I'm being confused a bit, but I feel that I'm getting it. Thank you. You are indeed learning. keep up the good work! Toodle-oo!

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Tell me about typecasting, plz.