AbsolutePower

go to:
 
gameserver/network/clientpackets/MoveBackwardToLocation.java  
_moveMovement = readD(); // is 0 if cursor keys are used 1 if mouse is used find if (activeChar == null) return; and add: if (_moveMovement == 0) return;  

@Ehoq  the best solution for animation-effects is to edit client. you may find something here:   https://maxcheaters.com/forum/41-client-development-discussion/
 
if you want to experiment with magicskilluse  :      
 
 _effected.broadcastPacket(new MagicSkillUse(_effected, skillId,  skillLevel, hitTime, reuseDelay));
 
vars for magicskillUse are diffirent and depends on pack , you can check the magicskillUse.java to see exactly the vars.
 
Social Action :
        _effected.broadcastPacket(new SocialAction(here it could be : _effected or _effected.getObjectId() , here actionId));
 

its bad coded , update the sql connection and at least replace the player loop with : L2World.getInstance().getPlayer(playerName)
 
instead of a whole loop inside another loop.  it can be done like :
L2PcInstance player =  L2World.getInstance().getPlayer(playerName);
 
if(player != null && player.isOnline() == 1)
{
    add item etc.
}
 
final code : 
 
if(id > 0 && count > 0 && !playername.isEmpty())
{
    L2PcInstance player =  L2World.getInstance().getPlayer(playerName);
     if(player != null && player.isOnline() == 1)
     {
        your code to add item here.
     }
}
 

http://www.maxcheaters.com/topic/204015-open-votesites-on-players-pc/

calcHpRegen(L2Character cha)   its inside--> Formulas.java
 
find if (cha instanceof L2PcInstance)
 
this is the original  code:
// Calculate Movement bonus if (player.isSitting()) hpRegenMultiplier *= 1.5;      // Sitting else if (!player.isMoving()) hpRegenMultiplier *= 1.1; // Staying else if (player.isRunning()) hpRegenMultiplier *= 0.7; // Running and you can do something like this:
 
// Calculate Movement bonus if (player.isSitting()) hpRegenMultiplier *= 1.5;      // Sitting else if (!player.isMoving()) hpRegenMultiplier *= 1.1; // Staying else  if (player.isRunning()) hpRegenMultiplier *= 0.7; // Running else hpRegenMultiplier *= 0.9; // Walking this is for hp regen.
 
for mp regen just search for calcMpRegen and cp  calcCpRegen