Codes on the wiki that i do not understand. Need help with them.

Codes on the wiki that i do not understand. Need help with them. - Printable Version

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Codes on the wiki that i do not understand. Need help with them. - CSMajor - 27.07.2010

Code 1:

It says hello to a specified player

pawn Код:

public OnPlayerCommandText(playerid, cmdtext[])
{
    new cmd[30];
    new idx;
    cmd = strtok(cmdtext, idx);
 
    if(strcmp(cmd, "/sayhello", true) == 0)
    {
        new tmp[30];
        // assign the id (written by the user) to tmp
        tmp = strtok(cmdtext, idx);
 
        // convert the id to an integer using strval (this is essential)
        // and assign to otherplayer
        new otherplayer = strval(tmp);
 
        if(IsPlayerConnected(otherplayer))
        {
            SendClientMessage(otherplayer, 0xFFFF00AA, "Hi, hello!");
        }
        return 1;
    }
    return 0;
}

Code 2:

it is the /me command.

pawn Код:

public OnPlayerCommandText(playerid, cmdtext[])
{
    if(!strcmp(cmdtext, "/me", true, 3)) // 3 is the length of /me
    {
        if(!cmdtext[3])return SendClientMessage(playerid, 0xFF0000FF, "USAGE: /me [action]");
        new str[128];
        GetPlayerName(playerid, str, sizeof(str));
        format(str, sizeof(str), "* %s %s", str, cmdtext[4]);
        SendClientMessageToAll(0xFFFF00AA, str);
        return 1;
    }
    return 0;
}

on both of these codes, i do not understand how they get the player id or send a message Beyond the command part.

EG 1: /me says hello

EG 2:/sayhello 4

Commands and variables i do not understand:

pawn Код:

sizeof()
strtok()
cmdtext[]
strcmp()
new str[128] where did the number come from and what does it represent?
format(str, sizeof(str), "* %s %s"-- this part, str, cmdtext[4]);
tmp
strval()
idx
cmd[30] again where did the number come from and whats it used for?

Re: Codes on the wiki that i do not understand. Need help with them. - Conroy - 27.07.2010

sizeof()
This function is used to get the size of a variable. The size of the variable is often used in other functions.

strtok()
This will get the next word (as in, after a space) and store it in a variable. Used in a lot of commands.

cmdtext[]
Cmdtext is the text entered if there is a "/" at the beginning of the user input.

strcmp()
Strcmp stands for 'String Compare', which can be used to compare two strings to check for a difference.

new str[128]
The number in the brackets is the amount of characters which can be stored in the variable.

format
Format puts other variables into a string. Used to SendClientMessages. The last part is the variables you put into the string. %s meaning string (a word), %i meaning an integer (number). Others can be found on the wiki.

tmp
Tmp is just a variable.

strval()
Strval stands for 'String Value', which can be used to get the value of a variable (only used if a number is stored in the variable).

idx
Again, idx is just a variable, but if used with strtok or strrest, it stores the last point of extraction from the user input.

cmd[30]
Explained earlier, another variable used to store characters.

Re: Codes on the wiki that i do not understand. Need help with them. - CSMajor - 27.07.2010

Ok so can i have help on understanding the /me command? on how to get what i stated earlier. (Look before the list of functions/commands/variables)

EDIT: I am still totally confused, with this.

EDIT 2: I really dont get this scripting language, i read the wikis tutorials thousands of times, and they still do not make sense.

Re: Codes on the wiki that i do not understand. Need help with them. - Daren_Jacobson - 27.07.2010

I get confused looking at strtok, use sscanf.

Re: Codes on the wiki that i do not understand. Need help with them. - CSMajor - 28.07.2010

GAH! I'm so confused. I can't figure out how to display a players name and their id.

EG: Player's Name: Bloop| ID: 0.

With the command being like so:

/playername [ID]