Negative Exp Fix (ODIN)

[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);
			   }
		}

[MentaL]

[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.getShowExpGain(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]

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 ?