Adding a skill (stat similar to experience and health)

[big_AL97]

I need to add a skill for my mod, but I have no clue how to go about making it. I don't quite understand how Minecraft handles data, but I need the stat to be saved for each individual player (for multiplayer capability). How do I make this skill so that it is properly saved and loaded per EntityPlayer player? Thank you to anyone who can help.

[Draco18s]

EntityPlayer player;

NBTTagCompound nbt = player.getEntityData();

[big_AL97]

Okay, do I need to modify the base class or make a class that extends EntityPlayer, or do I just need to implement the getEntityData() method? Does this method also save data?

[Darkprince97]

EntityPlayer player;

NBTTagCompound nbt = player.getEntityData();

I'm pretty sure this would crash,since you are referencing to a non instanciated object...

The proper way would be:

EntityPlayer player = Minecraft.getMinecraft().thePlayer;
NBTTagCompound nbt = player.getEntityData();

Also,@OP:

I think you misunderstood the use of NBT Data.This simply returns a list of informations stored in nbt.You have to use nbt.setInteger/setByte/etc... to save them.

[Draco18s]

EntityPlayer player;

NBTTagCompound nbt = player.getEntityData();

I'm pretty sure this would crash,since you are referencing to a non instanciated object...

 

Obviously.  I was merely declaring the object so that the OP knew what type it was.

 

The proper way would be:
[code]
EntityPlayer player = Minecraft.getMinecraft().thePlayer;
NBTTagCompound nbt = player.getEntityData();

Also,@OP:

I think you misunderstood the use of NBT Data.This simply returns a list of informations stored in nbt.You have to use nbt.setInteger/setByte/etc... to save them.

 

That won't work for SMP.

[Darkprince97]

Oh right,because thePlayer is EntityPlayerSP...

Thanks for pointing it out 

[big_AL97]

EntityPlayer player;

NBTTagCompound nbt = player.getEntityData();

I'm pretty sure this would crash,since you are referencing to a non instanciated object...

 

Obviously.  I was merely declaring the object so that the OP knew what type it was.

 

The proper way would be:
[code]
EntityPlayer player = Minecraft.getMinecraft().thePlayer;
NBTTagCompound nbt = player.getEntityData();

Also,@OP:

I think you misunderstood the use of NBT Data.This simply returns a list of informations stored in nbt.You have to use nbt.setInteger/setByte/etc... to save them.

 

That won't work for SMP.

So, then what would work for SMP? Or do I need to just look at how NBT Data actually works? How do I make sure that the data is specific for each player? Do I need to declare it within a specific class or what?

[Draco18s]

So, then what would work for SMP? Or do I need to just look at how NBT Data actually works? How do I make sure that the data is specific for each player? Do I need to declare it within a specific class or what?

 

You need to figure out when you need to reference this data value and figure out where you can get a reference to the player.

 

Forge Events are probably the best solution.

[big_AL97]

Okay. Thank you so much! I will definitely check into that! I've got only enough knowledge of Java to be dangerous I will definitely thank you! 

[Draco18s]

I've got only enough knowledge of Java to be dangerous

 

You actually can't be that dangerous with Java.

 

MySQL on the other hand...