Well we all know how to create a function but what about a function that uses dynamic number of parameters.
I recommend not reading if you do not have basic scripting knowledge.
PHP Code:
public function_add(num1, num2, result)
{
result = num1 + num2
}
But how can we create a function that uses a dynamic set of parameters?
Well the answer is simple you just need to use these functions:
For example for the function that we made above we can do something like this:
PHP Code:
public function_add( ... )
{
// For reading the first argument you must always use getarg(0)
// It starts with 0
setarg(2, getarg(0)+getarg(1))
}
As you see this function does not contain any arguments at all just dots.
That means that the number of parameters can vary.
Is this limited only to integer values?
No you can also copy vectors, strings, and Float values.
Here is a basic example
Float example:
PHP Code:
public function_mean( ... )
{
// You need to pass the first 2 arguments as float values or else this calculation
// Will be messed up
// Also the third parameter is a integer (normal value)
setarg(2, floatround((Float:getarg(1)+Float:getarg(0)) / 2.0))
}
String example:
PHP Code:
// We think that the string is in the first argument
public function_copystring( ... )
{
// position is the index that allows us to copy each cell of the string or array
// len is the maximum character capacity of the string
// string represents the array where we store text messages
// ch is the character, the place where we will hold the value (just to avoid more calls)
new position, ch, string[100], len
len = charsmax(string)
// We are testing to see if we reached the maximum capacity of the string, and also see if we get a value from the string that we are trying to read.
while ( (position < len) && (ch = getarg(0, position)) )
{
// Store the ch value
string[position] = ch
// Increment the position for allowing the next cell to load
position++;
}
// We need to do this because the string the ending character
string[position] = '^0';
position++;
// Now that we have the string copied, print it to the server
server_print(string)
}
How is this useful?
Well for example I used it to create a way for sending text messages more easily.
This is what my function looks like:
PHP Code:
/* This function uses a different system of getting arguments see funcwiki for details
* Params:
* - id, player id
* - print_type (ex: print_chat, print_center, etc.)
* - string to send to player (ex: #Alias_Not_Avail)
* - the rest, more strings, see cstrike_english.txt to see how much strings you need in this message (you need to count the "%s" parts coresponding a tag)
*
* Return:
* - None.
*/
sendTxtMsg(any: ...)
{
new numstring = numargs() - 2
new string[100]
new pos, ch, totalchars = charsmax(string)
message_begin(MSG_ONE, get_user_msgid("TextMsg"), _, getarg(0))
write_byte(getarg(1))
for (new i=0; i < numstring; i++)
{
// Here we copy the sting that we want to send to a player
pos = 0;
while (pos < totalchars && (ch = getarg(2 + i, pos)))
{
string[pos++] = ch
}
// Add ending to the string (necessary)
string[pos++] = '^0';
//server_print("STRING %s", string)
// Send it!
write_string(string)
}
// End the function chain
message_end()
}
And now I can easily transmit every client message easily.
For example instead of writing:
PHP Code:
message_begin(MSG_ONE, get_user_msgid("TextMsg"), _, id);
write_byte(print_center);
write_string("#Alias_Not_Avail");
write_string("Item");
message_end();
I use it like this:
PHP Code:
sendTxtMsg(id, print_center, "#Alias_Not_Avail", "Item")
And the beauty of it is that it supports dynamic number of parameters. That means that I do not need to adapt my code for each text message type. I just need to add one more string to the function parameters. So more readable and easier.
Example:
PHP Code:
// For "Cstrike_TitlesTXT_Game_radio"
// "%s1 (RADIO): %s2"
sendTxtMsg(id, print_center, "#Cstrike_TitlesTXT_Game_radio", "Youpii", "Having fun mate!")
And I do not need to create another function specially for this.
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