[airflow0]

This will fix negative exp.

Add to MapleCharacter.java
After public int getExp() {}

        public void setExp(int amount) {
                exp.set(amount);
        }

Add to MapleClient.java
At public void disconnect() {
Change

chr.saveToDB(true);

to

                        //fix negative exp on logout
                        if (chr.getExp() < 0) {
                                chr.setExp(0);
                        }
			chr.saveToDB(true);

Alternative method would be to set the players exp to 0 if its under 0 when the player gains exp again. In MapleCharacter.java add this in public void gainExp.

                if (this.getExp() < 0) {
                        this.setExp(0);
                }

*MULTI LEVEL VERSION*
Another method would be to set the players exp to positive then issue a levelup if the players new positive exp is greater than or equal to the the required exp to levelup.

                //if the player has negative exp while gaining exp convert to absolute value and levelup if value is greater than exp needed for level
		if (getExp() < 0) {
			   setExp(Math.abs(getExp()));
			   while (level < 200 && getExp() >= ExpTable.getExpNeededForLevel(level + 1)) {
					  levelUp();
			   }
		}

*SINGLE LEVEL VERSION*
Set the players exp to positive then issue a levelup if the players new positive exp is greater than or equal to the the required exp to levelup then set it to 0 after one level.

                //if the player has negative exp while gaining exp convert to absolute value and levelup if value is greater than exp needed for level
		if (getExp() < 0) {
			   setExp(Math.abs(getExp()));
			   if (level < 200 && getExp() >= ExpTable.getExpNeededForLevel(level + 1)) {
					  levelUp();
					  setExp(0);
			   }
		}

[HELOHELO]

HEY I need negative exp bar for titan thanks

[airflow0]

I don't know how exp is handled in titan, if you post the gainExp handler I'll fix it for titan as well..

[freedomVON]

hmm u sure it works?

[airflow0]

It should.

[andyw]

I usually do this.

MapleCharacter.java

public void gainExp(int gain, boolean show, boolean inChat, boolean white) {
if (getLevel() < 200) { // lv200 is max and has 0 exp required to level
int newexp = this.exp.addAndGet(gain);
if (exp.get() < 0) //This give the user level up only 1 level if happen to have negative exp
{
exp.set(ExpTable.getExpNeededForLevel(level + 1));
levelUp();
}
updateSingleStat(MapleStat.EXP, newexp);
}
if (show) { // still show the expgain even if it's not there
client.getSession().write(MaplePacketCreator.getSh owExpGain(gain, inChat, white));
}
if (level < 200 && exp.get() >= ExpTable.getExpNeededForLevel(level + 1)) {
levelUp();
}
}

[andyw]

Add this to the levelUp module if you want to restrict the user to have mass-level. This will only level up the user 1 level + max his/her exp to 99.99%.
if (exp.get() >= ExpTable.getExpNeededForLevel(level + 1))
{
exp.set(ExpTable.getExpNeededForLevel(level + 1) - 1);
}

[airflow0]

Giving a player a free levelup for negative exp might be a bad idea because you could kill one bugged monster and gain a free levelup..

[b0ib0ii]

does this changes the exp to 0? or it only delete the ' - ' sign in the database?

[airflow0]

It resets the exp to 0 if it goes negative.

[b0ib0ii]

Quote:

It resets the exp to 0 if it goes negative.

Is there a way i can make it minus the ' - ' sign only in the database using this?

[XkelvinchiaX]

this thing can cause the error 38 mah?

[andyw]

I assume only those exp value more than 2 power 32 will go to negative.

[Sengi]

imma try it thx xD

[zeally]

any idea how to allow multi leveling ?

[wly3298456]

Getting 1 compiling error when using andyw's method

[thegamer1907]

will this work? :

if (chr.getExp() < 0) {
                                chr.setExp(Exp - Exp);
                        }
			chr.saveToDB(true);

what im trying to do is set the exp to non negative instead of 0

[airflow0]

You would have to do this to set a negative to positive. Though if the players max exp is higher than the positive amount it will go negative again so you will need to issue a levelup. You'll probably want to loop it as well just to be on the positive side, this will keep leveling up the player if the exp is negative and the players max exp is equal to or less than the new absolute value.

Code is in main post now.

[Ownecl]

haha thanks for the scripts. it works really well ^.^

good job!

[xkush]

Love it.

[airflow0]

I updated the second alternative method and added a third method.

[ch1nkayy]

implanted in my server. works nicely (: props.

[lxCrAzYsEl]

//if the player has negative exp while gaining exp convert to absolute value and levelup if value is greater than exp needed for level
if (getExp() < 0) {
setExp(Math.abs(getExp()));
if (level < 200 && getExp() >= ExpTable.getExpNeededForLevel(level + 1)) {
levelUp();
setExp(0);
}
}



where can i edit this file ? O.o i cant find it.

[airflow0]

You put it in MapleCharacter.java under the gainExp function.

[thegamer1907]

thanks, its very helpful.