* Refactor pc_setparam for SP_BASEEXP and SP_JOBEXP.

* Added script command `getexp2` for safety usage of `set BaseExp,n;` and `set JobExp,n` usages.
* Cleanup exp lost functionto `pc_lostexp`.

Signed-off-by: Cydh Ramdh <cydh@pservero.com>

doc/script_commands.txt

@@ -4185,25 +4185,26 @@ the character will also have their skills reset upon 'changecharsex'.
 
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-*getexp <base xp>,<job xp>{,<char_id>};
+*getexp <base_exp>,<job_exp>{,<char_id>};
 
 This command will give the invoking character a specified number of base and job 
-experience points. Can be used as a quest reward. Negative values won't work.
+experience points. Used for a quest reward. Negative values won't work.
+
+The EXP values are adjustted by 'quest_exp_rate' config value, VIP bonus, Guild 
+Tax and EXP boost items such Battle Manual, Bubble Gum, or items that have 
+SC_EXPBOOST or SC_ITEMBOOST.
 
     getexp 10000,5000;
 
-You can also use the "set" command with the constants defined in 'db/const.txt':
+---------------------------------------
 
-    // These 2 combined has the same effect as the above command
-    set BaseExp,BaseExp+10000;
-    set JobExp,JobExp+5000;
+*getexp2 <base_exp>,<job_exp>{,<char_id>};
 
-You can also reduce the amount of experience points:
+This command is safety version of 'set' command for BaseExp and JobExp. If using 
+'set' while the BaseExp or JobExp value is more than 2,147,483,647 (INT_MAX) will 
+causing overflow error.
 
-    set BaseExp,BaseExp-10000;
-
-Note that 'getexp' is now subject to the 'quest_exp_rate' config option, which
-adjusts the gained value. If you want to bypass this, use the 'set' method.
+Unlike 'getexp', this command ignores the adjustment factors!
 
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