[Process]

Hello,

today I found a code but I did not understand well a part of the script ,

/* Plugin generated by AMXX-Studio */

#include <  amxmodx  >
#include <  hamsandwich  >

#define PLUGIN "Modificare Damage"
#define VERSION "0.1"
#define AUTHOR "hadesownage"

#define IsPlayer(%0)    ( 1 <= %0 <= g_iMaxPlayers )

new g_iMaxPlayers;

public plugin_init ( ) {
    
    register_plugin ( PLUGIN, VERSION, AUTHOR );
    
    g_iMaxPlayers = get_maxplayers ( )
    RegisterHam ( Ham_TakeDamage, "player", "Player_TakeDamage" );
}

public Player_TakeDamage ( iVictim, iInflictor, iAttacker, Float:fDamage ) {
    
    if ( iInflictor == iAttacker && IsPlayer ( iAttacker ) ) {
    
        SetHamParamFloat ( 4, fDamage * 2.0 );
        return HAM_HANDLED;
        
    }
    
    return HAM_IGNORED;
    
}

this is what i didn't understand

#define IsPlayer(%0)    ( 1 <= %0 <= g_iMaxPlayers )

why its %0 can i replace it with 1 and what is <= and get_maxplayers is it take the max player from server or what !



I'm still learning ...

[Arkshine]

What you see is called a macro. %0, %1, up to %9. are just arguments you pass.
A macro is replaced at compilation time.

For example, if you have IsPlayer(iAttacker) in your code, it will be replaced at compilation with 1 <= iAttacker <= g_iMaxPlayers
%0 is just a way to say that macro takes one argument.

[Process]

Yes i understand the replace of the 'Macro' , i've already read a 'tuto'

the actually define what is it , why we need a maxplayers in this define ! ?

[Arkshine]

To check whether index is actually a player. If index is between 1 and maxclients (maxclients being the current server max slots), then it's a player. If your server has 16 slots, a player's index can't be 17.

It's just a fast way to filter between players and others entities. You can take damage from something other than a player. The code will work only if attacker is a player.

[Process]

Really thanks dude ^^'

[Freezo Begin]

1 return if is a less than or equal a attacker and the attacker return if is a less than or equal a maxplayers

and

for an example :

switch (a)
{
case 0 .. 50:
{
//This code will run if 0 <= a <= 50
// which is From 0 to 49
}

so

('THIS IS WRONG ITS JUST A EXAMPLE')
switch (attacker){
case 1..maxplayers
//1 <= attacker <= maxplayers
// from 1 to maxplayers if maxplayers = 16 then from 1 to 15
}


maybe this is a easy way to unders...