AlliedModders - New XP Mod tutorial

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- - New XP Mod tutorial (https://forums.alliedmods.net/showthread.php?t=66497)

New XP Mod tutorial

First of all, full credit goes to fxfighter, he revised it. All im doing is releasing this so that people wont go to the other xp mod tutorial (which doesnt work). And i added a little bit of extras so that it would be better. Anyways, on to the tutorial :) ...

Im going to show you have to make an XP mod.
Before starting, you should have basic scripting Knowledge.

Inculde all the important modules

PHP Code:


		
			
#include <amxmodx>
#include <amxmisc>
#include <nvault>

Define the maximum classes.
Here there is 5, but if you want to add 2 more animals, like a bird and a fish, then you can put 7. But we are dealing with 5

PHP Code:


		
			
#define MAXCLASSES 5

We create the variable that is going to hold your class, xp , and level

PHP Code:


		
			
new PlayerXP[33],PlayerLevel[33],PlayerClass[33]
 //these are for special kills 
new XP_Kill,XP_Knife,XP_Hs,SaveXP
 //this is for Nvault. so that We can save XP
 new g_vault

This is the "maxclasses" variable we were talking about. You'll see these in the game.
Code:

PHP Code:


		
			
new const CLASSES[MAXCLASSES][] = {
    "None",
    "Dog",
    "Cat",
    "Horse",
    "Cow"
}

Note that there are 5 classes. Thats why we defined maxclasses to 5

Now we create the levels, and how many xp you ned to gain a level.
There is 7 levels

Code:

PHP Code:


		
			
new const LEVELS[7] = {
0,
100,//this means you need 100 xp
200,//this means you need 200 xp
400,//this means you need 400 xp
800,//so on
1600,//so on
3200 //so on
}

Now we create the plugin_init()

PHP Code:


		
			
public plugin_init()
{
    register_plugin("XpMod", "1.0", "Fxfighter")
 
    //we need this to check your level after you kill some one
    register_event("DeathMsg", "eDeath", "a")
    //is saving on?
    SaveXP = register_cvar("SaveXP","1")
    //how many xp are u gonna get per kill?
    XP_Kill=register_cvar("XP_per_kill", "20")
    //if you get a hs you get bonus xp
    XP_Hs=register_cvar("XP_hs_bonus","20")
    //if you make a knife kill you get bounus xp
    XP_Knife=register_cvar("XP_knife_bonus","20")
    //we just opened a new connection NVAULT connection
    // we will call it animod
    g_vault = nvault_open("animod")
    // register a say command to change class
    register_clcmd("say /class", "ChangeClass")
    register_clcmd("say_team /class", "ChangeClass")
    //show how much xp you have
    register_clcmd("say /xp", "ShowHud")
    register_clcmd("say_team /xp", "ShowHud")
}

We are gonna create the Death function. Rember we called it "eDeath" in plugin_init()? It will keep track of your xp and if you ganined a level
Code:

PHP Code:


		
			
public eDeath( ) //function name 
{ 
    // If the player's Class is  nothing, then dont bother to do any of the below
    if(PlayerClass[attacker] == 0)
         return PLUGIN_CONTINUE

    // Create a variable to store the attacker's id
    new attacker = read_data( 1 )
    // We create the victim variable, so that this function can check 
    // if a player was killed 
    new iVictim = read_data( 2 )
    // If a player was killed by a HeadShot, this will be used for the cvar Xp_Hs
    new headshot = read_data( 3 )
 
    //which weapon was used
    new clip, ammo, weapon = get_user_weapon(attacker,clip,ammo);
    PlayerXP[attacker] += get_pcvar_num(XP_Kill) 
    // used for the xp_hs cvar 
    // it checks if the victim was killed by a headshot 
    if(headshot) 
    // give him/her bonus xp 
    PlayerXP[attacker] += get_pcvar_num(XP_Hs) 
    // checks if the victim was killed by a knife 
    if(weapon == CSW_KNIFE) 
        //give him/her bonus xp 
    PlayerXP[attacker] += get_pcvar_num(XP_Knife) 
    // this checks if the player has enough xp to advance to a new level
 
     while(PlayerXP[attacker] >= LEVELS[PlayerLevel[attacker]]) 
    { // this will create the Congratulations message. 
        client_print(attacker, print_chat, "[Animal Mod] Congratulations! You are a level %i %s!", PlayerLevel[attacker],CLASSES[PlayerClass[attacker]]) 
        // Add his/her level 
        PlayerLevel[attacker] += 1 
    } 
    // shows his level on a hud message 
    ShowHud(attacker)
 
}

This is the showhud function. It shows the your Class, your level, and XP

PHP Code:


		
			
public ShowHud(id) 
{ 
    set_hudmessage(255, 0, 0, 0.75, 0.01, 0, 6.0, 15.0) 
    show_hudmessage(id, "Level: %i^nXP: %i^nClass: %s",PlayerLevel[id],PlayerXP[id],CLASSES[PlayerClass[id]]) 
}

Note: ^n means new line

Here is the menu selector. It will give you the options to select your animal. It uses the new menu system. I dont feel like going into detail with the new menu system, here is the original tutorial on that

PHP Code:


		
			
public ChangeClass(id) 
{
    new menu = menu_create("Class Menu" , "Class_Handle");
    menu_additem(menu ,"Dog", "1" , 0); 
    menu_additem(menu ,"Cat", "2" , 0); 
    menu_additem(menu ,"Horse", "3" , 0); 
    menu_additem(menu ,"Cow", "4" , 0);
    menu_setprop(menu , MPROP_EXIT , MEXIT_ALL);
    menu_display(id , menu , 0); 
    return PLUGIN_CONTINUE; 
} 
 
public Class_Handle(id , menu , item) 
{ 
    if(item == MENU_EXIT) 
    { 
        menu_destroy(menu); 
    } 
    new szCommand[6] , szName[64]; new access , callback; 
    menu_item_getinfo(menu , item , access , szCommand , 5 , szName , 63 , callback); 
    new i = str_to_num(szCommand) 
    if(PlayerClass[id] != i) 
    { 
        PlayerClass[id] = i client_print(id,print_chat,"You are now a %s",CLASSES[i]) 
    }
    else 
    { 
        client_print(id,print_chat,"You are alredy a %s",CLASSES[i]) 
    } 
    menu_destroy(menu); 
    return PLUGIN_CONTINUE 
}

This this is the client connect function. All these things happend when the player is connecting to the server

PHP Code:


		
			
public client_connect(id) 
{
    // Only does it if xp saving is on 
    if(get_pcvar_num(SaveXP) == 1) 
    { 
        // load your player data 
        LoadData(id) 
    } 
}

This is the client disconect funtion. These only happen when the player has disconnected from the server

PHP Code:


		
			
public client_disconnect(id) 
{ 
// Only does it if xp saving is on 
     if(get_pcvar_num(SaveXP) == 1) 
     { 
          // lets save the data 
          SaveData(id) 
     } 
}

Now we create the save data function

PHP Code:


		
			
public SaveData(id) 
{ 
    // get the players steam id. We need this because we are saving by steam id 
    new AuthID[35] get_user_authid(id,AuthID,34) 
    new vaultkey[64],vaultdata[256] 
    // format wat is going to be in the animal mod vault file 
    format(vaultkey,63,"%s-Mod",AuthID) 
    format(vaultdata,255,"%i#%i#",PlayerXP[id],PlayerLevel[id]) 
    // save the data 
    nvault_set(g_vault,vaultkey,vaultdata) 
    return PLUGIN_CONTINUE 
}

now we create the load data function

PHP Code:


		
			
public LoadData(id) 
{ 
    new AuthID[35] get_user_authid(id,AuthID,34) 
    new vaultkey[64],vaultdata[256] 
    // search 
    format(vaultkey,63,"%s-Mod",AuthID) 
    format(vaultdata,255,"%i#%i#",PlayerXP[id],PlayerLevel[id]) 
    // load the data 
    nvault_get(g_vault,vaultkey,vaultdata,255) 
    replace_all(vaultdata, 255, "#", " ") 
    new playerxp[32], playerlevel[32] 
    parse(vaultdata, playerxp, 31, playerlevel, 31) 
    PlayerXP[id] = str_to_num(playerxp) 
    PlayerLevel[id] = str_to_num(playerlevel) 
    return PLUGIN_CONTINUE 
}

OK now everything with out comments

Code:

#include <amxmodx>

#include <amxmisc>

#include <nvault>

#define MAXCLASSES 5

new const CLASSES[MAXCLASSES][] = {

    "None",

    "Dog",

    "Cat",

    "Horse",

    "Cow"

}

new const LEVELS[6] = {

    100, 

    200, 

    400, 

    800,

    1600,

    3200

}

new PlayerXP[33],PlayerLevel[33],PlayerClass[33]

new XP_Kill,XP_Knife,XP_Hs,SaveXP,g_vault

public plugin_init()

{

    register_plugin("XpMod", "1.0", "Fxfighter")

 

    register_event("DeathMsg", "eDeath", "a") 

 

    SaveXP = register_cvar("SaveXP","1")

    XP_Kill=register_cvar("XP_per_kill", "20")

    XP_Hs=register_cvar("XP_hs_bonus","20")

    XP_Knife=register_cvar("XP_knife_bonus","20")

    g_vault = nvault_open("animod")

 

    register_clcmd("say /class", "ChangeClass")

    register_clcmd("say_team /class", "ChangeClass")

    register_clcmd("say /xp", "ShowHud")

    register_clcmd("say_team /xp", "ShowHud")

}

public eDeath(  ) 

{

    new attacker = read_data( 1 )

    new iVictim = read_data( 2 )

    new headshot = read_data( 3 )

    new clip, ammo, weapon = get_user_weapon(attacker,clip,ammo);

 

    PlayerXP[attacker] += get_pcvar_num(XP_Kill)

 

    if(headshot)

    PlayerXP[attacker] += get_pcvar_num(XP_Hs)

 

    if(weapon == CSW_KNIFE)

    PlayerXP[attacker] += get_pcvar_num(XP_Knife)

 

 

    while(PlayerXP[attacker] >= LEVELS[PlayerLevel[attacker]])

    {

      client_print(attacker, print_chat, "[Animal Mod] Congratulations! You are a level %i %s!",

      PlayerLevel[attacker] += 1

    }

    ShowHud(attacker)

    SaveData(attacker)

}

public ShowHud(id)

{

    set_hudmessage(255, 0, 0, 0.75, 0.01, 0, 6.0, 15.0)

    show_hudmessage(id, "Level: %i^nXP: %i^nClass: %s",PlayerLevel[id],PlayerXP[id],CLASSES[PlayerClass[id]])

}

public ChangeClass(id)

{

    new menu = menu_create("Class Menu" , "Class_Handle");

    menu_additem(menu ,"Dog", "1" , 0);

    menu_additem(menu ,"Cat", "2" , 0);

    menu_additem(menu ,"Horse", "3" , 0);

    menu_additem(menu ,"Cow", "4" , 0);

 

    menu_setprop(menu , MPROP_EXIT , MEXIT_ALL);

 

    menu_display(id , menu , 0);

 

    return PLUGIN_CONTINUE;

}

public Class_Handle(id , menu , item) 

{

    if(item == MENU_EXIT) 

    {

 

        menu_destroy(menu);

 

    }

 

    new szCommand[6] , szName[64];

    new access , callback;

 

    menu_item_getinfo(menu , item , access , szCommand , 5 , szName , 63 , callback);

 

    new i = str_to_num(szCommand)

    if(PlayerClass[id] != i)

    {

        PlayerClass[id] = i

        client_print(id,print_chat,"You are now a %s",CLASSES[i])

    }

    else

    {

        client_print(id,print_chat,"You are alredy a %s",CLASSES[i])

    }

 

    menu_destroy(menu);

    return PLUGIN_CONTINUE

}

public client_connect(id)

{

    if(get_pcvar_num(SaveXP) == 1)

    {

 

        LoadData(id)

    }

}

public client_disconnect(id)

{

    if(get_pcvar_num(SaveXP) == 1)

    {

 

        SaveData(id)

    }

    PlayerXP[id] = 0

    PlayerLevel[id] = 0

    PlayerClass[id] = 0

}

public SaveData(id)

{

    new AuthID[35]

    get_user_authid(id,AuthID,34)

 

    new vaultkey[64],vaultdata[256]

    format(vaultkey,63,"%s-Mod",AuthID)

    format(vaultdata,255,"%i#%i#",PlayerXP[id],PlayerLevel[id])

    nvault_set(g_vault,vaultkey,vaultdata)

    return PLUGIN_CONTINUE

}

public LoadData(id)

{

    new AuthID[35]

    get_user_authid(id,AuthID,34)

 

    new vaultkey[64],vaultdata[256]

    format(vaultkey,63,"%s-Mod",AuthID)

    format(vaultdata,255,"%i#%i#",PlayerXP[id],PlayerLevel[id])

    nvault_get(g_vault,vaultkey,vaultdata,255)

 

    replace_all(vaultdata, 255, "#", " ")

 

    new playerxp[32], playerlevel[32]

 

    parse(vaultdata, playerxp, 31, playerlevel, 31)

 

    PlayerXP[id] = str_to_num(playerxp)

    PlayerLevel[id] = str_to_num(playerlevel)

 

    return PLUGIN_CONTINUE

}

Any errors or anything please feel free to reply

Re: New XP Mod tutorial

i read a little part, and your knife and hs pcvars are swapped :S

Re: New XP Mod tutorial

everything fixed :P thanks

Re: New XP Mod tutorial

Looks good, thanks a lot. The other one didn't work, so many people complained :roll:

Re: New XP Mod tutorial

Yeh many people were complaining so i was like "damn ill just make a New one" :D

Re: New XP Mod tutorial

You might want to change "client_connect" to "client_authorized".
Just to be safe.

Re: New XP Mod tutorial

think you shuld add this to the death event so you cant get xp whit class none.

PHP Code:


		
			
if(PlayerClass[attacker] == 0)
  return PLUGIN_CONTINUE

And plz remove my old mistake^^

PHP Code:


		
			
public client_connect(id) 
{
// cant print he is not in yet
client_print(id, print_chat, "[AnimalMod] XP Loaded!") 
}

small future i wuld like to see^^ but it might get buged on max lv.

PHP Code:


		
			
show_hudmessage(id, "Level: %i^nXP: %i/%i^nClass: %s",PlayerLevel[id],PlayerXP[id],LEVELS[PlayerLevel[id]],CLASSES[PlayerClass[id]])

if you get to much xp then you will have a bug that you lv up once instead of twice this will solve it.

PHP Code:


		
			
while(PlayerXP[attacker] >= LEVELS[PlayerLevel[attacker]])
PlayerLevel[attacker] += 1

Re: New XP Mod tutorial

Quote:

Originally Posted by fxfighter (Post 580780)

think you shuld add this to the death event so you cant get xp whit class none.

PHP Code:


		
			
if(PlayerClass[attacker] == 0)
  return PLUGIN_CONTINUE

And plz remove my old mistake^^

PHP Code:


		
			
public client_connect(id) 
{
// cant print he is not in yet
client_print(id, print_chat, "[AnimalMod] XP Loaded!") 
}

small future i wuld like to see^^ but it might get buged on max lv.

PHP Code:


		
			
show_hudmessage(id, "Level: %i^nXP: %i/%i^nClass: %s",PlayerLevel[id],PlayerXP[id],LEVELS[PlayerLevel[id]],CLASSES[PlayerClass[id]])

if you get to much xp then you will have a bug that you lv up once instead of twice this will solve it.

PHP Code:


		
			
while(PlayerXP[attacker] >= LEVELS[PlayerLevel[attacker]])
PlayerLevel[attacker] += 1

I did everything but the 3rd part because im very sleepy :P and i have to do other things. And u said it might bug, so yea.

Re: New XP Mod tutorial

@flyen16

Can you tell me why are you using get_user_attacker() ?

Code:

public eDeath( )
{ 
    new iVictim = read_data( 2 ) 

    new weapon, hitplace, attacker = get_user_attacker(iVictim,weapon,hitplace) 

    if(hitplace == HIT_HEAD)

Using DeathMsg event, the killer is provided in the first argument ( read_data(1) ) and to know if it's a headshot, it's provided in the third argument ( read_data(3 ) ). And to know the weapon, see the fourth argument.

Re: New XP Mod tutorial

Quote:

Originally Posted by arkshine (Post 580789)

@flyen16

Can you tell me why are you using get_user_attacker() ?

Code:
public eDeath( ) { new iVictim = read_data( 2 ) new weapon, hitplace, attacker = get_user_attacker(iVictim,weapon,hitplace) if(hitplace == HIT_HEAD)

Using DeathMsg event, the killer is provided in the first argument ( read_data(1) ) and to know if it's a headshot, it's provided in the third argument ( read_data(3 ) ). And to know the weapon, see the fourth argument.

oh crap, lol i wasnt paying attention lol.
ill fix it, thx for telling me

Re: New XP Mod tutorial

You have omitted the weapon.

Re: New XP Mod tutorial

Is this for SQL or can It be used with a text file to save xp? Im working on a mod with these features but I dont know anything about SQL Databases. Thanks
LINKosc

Re: New XP Mod tutorial

This isn't for sql, for sql view some of the sql tutorials, documentation, or plugin examples. I wrote an example last year using the older version of sql access, Hawk wrote information on how to use the newer SQL data access.

SQL Information, Code Examples, and Tutorials By:
BAILOPAN
Hawk552
TheNewt

I recommend learning SQLx from Hawk's thread there. Mine's is the older version, and BAIL's there is an update to the API, not really a tutorial.

Re: New XP Mod tutorial

my god... please someone just fix this tutorial !

There is NO "attacker" variable in the death func, and some other problems that occured upon compile...

Please fix both the long and comented sections and the uncommented full code... :roll:

Re: New XP Mod tutorial

Could you please post one without the classes and just leveling up with chosen names for each rank?:)

Re: New XP Mod tutorial

u forgot the attacker verible man use read_data (1)
and u used an id which is undeffined aswell

Re: New XP Mod tutorial

i did use read_Data(1) read the code

Quote:

new headshot,attacker = read_data( 1 )

Re: New XP Mod tutorial

Quote:

Originally Posted by fxfighter (Post 597204)

i did use read_Data(1) read the code

not u in the final code thats in the main message in eDeath its missing the attacker variable

Re: New XP Mod tutorial

Y thats why i fixed it.

Re: New XP Mod tutorial

Always wanted to make exp mod but never really knew how. Last tutorial didn't work. Thanks for making this.
I'd give you lots of respect and a +karma if you could add something though. This is nice and all, but it's pointless leveling up. Could you show everyone how to give people rewards at the certain levels? That way people actually WANT to level up and come back to the server :)

Re: New XP Mod tutorial

simple, say you want to give them more damage on level 3 on damage event, check their level then if high enough level just add some damage.

Re: New XP Mod tutorial

you can hook roundstart or spawn to give at start like extra hp or ar.
You can check thare level after level up in the death msg to.

Re: New XP Mod tutorial

basically you can do anything, just check if their level is high enough first, or if you have them choose skills to train that you have varriables to keep track of that:
psuedo:

Code:

if(playerLevel[index] >= 10)
{
     give_hp(index, 500);
     uber(index);
}

get what we mean?

Re: New XP Mod tutorial

yes, so i just put in

[code]
if(playerLevel[index] >= 10)
{
whatever i want to give them

}

and where do i put this?

Re: New XP Mod tutorial

Quote:

Originally Posted by fxfighter (Post 597646)

you can hook roundstart or spawn to give at start like extra hp or ar.
You can check thare level after level up in the death msg to.

Re: New XP Mod tutorial

Uh. Hi.

I'm new too amxx scripting so I was just wondring if there is somthing wrong with the code, or maybe I compile it wrong? :p

I tried to compile it but I get the error:

Code:

/home/groups/amxmodx/tmp3/phpXo7cEB.sma(43) : error 017: undefined symbol "id"

/home/groups/amxmodx/tmp3/phpXo7cEB.sma(45) : error 017: undefined symbol "attacker"

/home/groups/amxmodx/tmp3/phpXo7cEB.sma(48) : error 017: undefined symbol "attacker"

/home/groups/amxmodx/tmp3/phpXo7cEB.sma(51) : error 017: undefined symbol "attacker"

/home/groups/amxmodx/tmp3/phpXo7cEB.sma(54) : error 017: undefined symbol "attacker"

/home/groups/amxmodx/tmp3/phpXo7cEB.sma(56) : error 017: undefined symbol "attacker"

/home/groups/amxmodx/tmp3/phpXo7cEB.sma(56) : warning 215: expression has no effect

/home/groups/amxmodx/tmp3/phpXo7cEB.sma(56) : warning 215: expression has no effect

/home/groups/amxmodx/tmp3/phpXo7cEB.sma(56 -- 57) : error 017: undefined symbol "attacker"

/home/groups/amxmodx/tmp3/phpXo7cEB.sma(59) : error 017: undefined symbol "attacker"

/home/groups/amxmodx/tmp3/phpXo7cEB.sma(60) : error 017: undefined symbol "attacker"



9 Errors.

Could not locate output file /home/groups/amxmodx/public_html/websc3/phpXo7cEB.amx (compile failed).

An ideas? ;)

Edit: Got everything to work :]

Re: New XP Mod tutorial

There's an error in the code. You can either wait for a reply in the relevant topic or you can post the code that you're trying to compile in Scripting Help.

Re: New XP Mod tutorial

This code doesnt save xp right? When I change map ect I have my same XP. but if I reconnect on client I loose it..

Re: New XP Mod tutorial

it saves xp in nvault by steamid and i posted a small fix on page 2 in this thread.

Re: New XP Mod tutorial

Oh right ;).

Well I fixed it myself too hehe. :)

Re: New XP Mod tutorial

How would I make it give different things for different classes at different levels?

Re: New XP Mod tutorial

it think the threath stater should update his xp mod tutorial ,
I have seen many topics last time all because of a bad tutorial ,
It is also very annoying for the newbies like me cause they think there going out the good way untill they see all the errors but they cant do a thing about it .

Re: New XP Mod tutorial

Well I started AMXX Scripting two days ago and this was my second tutorial. I got most of it to work.

HexD:
If you wanna give yourself somthing for each level and class you can do something like this:

PHP Code:


		
			
if(PlayerLevel[id] == 2) // Checks level.
{
give_item(id,"weapon_awp"); // Give yourself AWP at level 2
}

If you wanna give something for a class only you can do..

PHP Code:


		
			
if (PlayerClass[id] == CLASS_COW) // Checks if he's an cow or not
{
set_user_health(id, 250); // gives him 250 health if he's a Cow
}

If you wanna give an item to a class on a X level you could do somthing like this..

PHP Code:


		
			
if (PlayerClass[id] == CLASS_COW || PlayerLevel[id] == 5) // Checks Class and Level.
{
set_user_health(id, 250); // gives him 250 health if he's a Cow on level 5
give_item(id,"weapon_awp"); // 
}

Edit: You also might want to add this on the top.

enum {
PLAYERLEVEL_1,
PLAYERLEVEL_2,
PLAYERLEVEL_3, // How many Levels
PLAYERLEVEL_4,
PLAYERLEVEL_5,
PLAYERLEVEL_6
}
enum {
CLASS_NONE = 0,
CLASS_COW,
CLASS_HORSE, // Add your Classes there..
CLASS_CAT,
CLASS_DOG
}

Re: New XP Mod tutorial

Nice , your learning fast

Re: New XP Mod tutorial

Except '||' signifies 'logical or' and not 'logical and' - you were looking for '&&'.

Re: New XP Mod tutorial

Thanks for the reply, I've been trying all day to get it to work but I do not know how or where to add your changes.

Could you explain it a bit more please?

The other thing I was wondering is:

Code:

    if(PlayerLevel[id] >= 16) // Checks level.
    {
    set_user_health(id, 120);
    }  
    if(PlayerLevel[id] >= 31) // Checks level.
    {
    set_user_health(id, 140);
    } 
    if(PlayerLevel[id] >= 46) // Checks level.
    {
    set_user_health(id, 160);
    } 
    if(PlayerLevel[id] >= 61) // Checks level.
    {
    set_user_health(id, 180);
    } 
    if(PlayerLevel[id] >= 76) // Checks level.
    {
    set_user_health(id, 200);
    } 
    if(PlayerLevel[id] == 90) // Checks level.
    {
    set_user_health(id, 255);
    }

Will the above add the specified health for all levels above the one it checks for? I mean will it stack the health like at lvl 16 player will get 120 health, then at lvl 31 they will get 140, will the script give them both health bonuses? If it will how do I make it not?

Re: New XP Mod tutorial

Hello.

As for your second Question no, they wont get their bonus for each level if they are like level 90+

However, if you wanna do that one time (lets say they can buy an item that adds 25 health)

Heres quick example.

Code:
if(PlayerLevel[id] <= 5) // If there user is level 1-5 or exactly 5.
{
new health = get_user_health(id); // Setting the user's health in a variabel
set_user_health(id, health+25); // Set the users health to the 'old' health + gives him 25 extra health bonus.
}

To your first question.. give me some mins and I can see if Ican try explain it better : )

Edit: HexD What exactly are you trying to make that does not work? the code above should work.