[Salmon]

Код:

public OnPlayerCommandText(playerid, cmdtext[])
{
    if(strcmp(cmdtext, "/jackass", true) == 0)
    {
        // Set the player's skin to ID 252, which is a whatever the skin is
        SetPlayerSkin(playerid, 252);

        new name[MAX_PLAYER_NAME];
        GetPlayerName(playerid, name, sizeof(name));

        new messege[128];
        format(messege,sizeof(messege), "%s(%d) Is a Jackass!!!", name, playerid); 
        SendClientMessageToAll(0xDEEE20FF, messege");
        return 1;
    }
    return 0;
}

thats the basics, its not hard to figure out the rest, just look at the wiki