How to make items use up your XP bar? (1.14.4)

[Babelincoln1809]

I'm just trying to locate where the XP data stuff is, so when I swing a certain sword, it uses some of the XP up. 

[Animefan8888]

4 minutes ago, Babelincoln1809 said:

I'm just trying to locate where the XP data stuff is, so when I swing a certain sword, it uses some of the XP up. 

It's stored right in the PlayerEntity class. Specifically PlayerEntity::giveExperiencePoints

[Babelincoln1809]

1 hour ago, Animefan8888 said:

It's stored right in the PlayerEntity class. Specifically PlayerEntity::giveExperiencePoints

A bit confusing on how I can get it to work, but I'm figuring it out. Thank you!

[Animefan8888]

10 minutes ago, Babelincoln1809 said:

A bit confusing on how I can get it to work, but I'm figuring it out. Thank you!

Assuming you have a PlayerEntity instance called player.

 

player.giveExperiencePoints(-10);

This will remove 10 experience points from the player.

 

player.addExperienceLevel(-1);

This will remove one level from the player.

[Babelincoln1809]

18 minutes ago, Animefan8888 said:

Assuming you have a PlayerEntity instance called player.

 

player.giveExperiencePoints(-10);

This will remove 10 experience points from the player.

 

player.addExperienceLevel(-1);

This will remove one level from the player.

More so when I swing the weapon, it does the removal, and when there's no XP, the weapon can't swing anymore. I really suck at doing multiple methods, like it's the one thing I truly struggle with

[DavidM]

2 minutes ago, Babelincoln1809 said:

I really suck at doing multiple methods, like it's the one thing I truly struggle with

That basically sums up Java (or any object-oriented programming). If you are struggling to do this, then you might want to get more familiar with Java before making a mod.

 

4 minutes ago, Babelincoln1809 said:

More so when I swing the weapon, it does the removal, and when there's no XP, the weapon can't swing anymore.

Check out LivingAttackEvent. You can check if the player has enough XP (and remove it). If not, cancel the event.

[Babelincoln1809]

2 minutes ago, DavidM said:

That basically sums up Java (or any object-oriented programming). If you are struggling to do this, then you might want to get more familiar with Java before making a mod.

I've taken a have course this year, I'm just so new to it I guess.

[Babelincoln1809]

1 hour ago, Animefan8888 said:

Assuming you have a PlayerEntity instance called player.

Waaaaaiiiit, nevermind, I'm just being an idiot

[Babelincoln1809]

17 hours ago, Animefan8888 said:

Assuming you have a PlayerEntity instance called player.

 

player.giveExperiencePoints(-10);

This will remove 10 experience points from the player.

 

player.addExperienceLevel(-1);

This will remove one level from the player.

Yeah, anything I'm doing is not draining the XP. I dunno if it's not recognizing it when I swing or not

[DavidM]

2 hours ago, Babelincoln1809 said:

Yeah, anything I'm doing is not draining the XP. I dunno if it's not recognizing it when I swing or not

Post your updated code.

[Babelincoln1809]

1 hour ago, DavidM said:

Post your updated code.

Here's the class. It's xpSwing.

 

https://paste.dimdev.org/zivekozuve.cpp

[DavidM]

1.

Quote

entity.isSwingInProgress = true

This will always be true. Single equal ( = ) sign is for assignment, not comparison.

2. You've never called xpSwing() at all. It will never be used, therefore not reducing the experience bar (or make anything happen).

3. If you want to make a sword, extend SwordItem. There is no reason to copy-paste everything from vanilla classes.

Edited April 8, 2020 by DavidM