[Solved][1.12.2] Clone Enitities

[tebreca]

Dear mcforge forums,

 

I recently started working on a machine that would clone an Entity, 

this is what ive got so far:

if(entity != null) {
	NBTTagCompound data = entity.writeToNBT(new NBTTagCompound());
	entity = EntityRegistry.instance().getEntry(entity.getClass()).newInstance(world);
	entity.readFromNBT(data);
	entity.setUniqueId(new UUID(entity.getUniqueID().getMostSignificantBits(), entity.getUniqueID().getLeastSignificantBits()));
	entity.setPositionAndUpdate(out.getX() + 0.5, out.getY(), out.getZ() + 0.5);
	if(!world.isRemote)
		world.spawnEntity(entity);
}

 

the whole Block:

https://hastebin.com/enudoligay.java

 

the block's base class:

https://hastebin.com/ujoleladof.java

 

but the problem is that i get this error in console:

Quote

[Server thread/WARN]: Keeping entity minecraft:zombie that already exists with UUID b557c578-f59d-44bb-a2c1-6d1f908b5a43

I tried adding a different UUID etc. i have debugged it but i couldn't find a way of cloning entities.

 

Thanks,

tebreca

Edited May 3, 2018 by tebreca
marked it solved

[Draco18s]

28 minutes ago, tebreca said:

new UUID(entity.getUniqueID().getMostSignificantBits(), entity.getUniqueID().getLeastSignificantBits())

"Hey, give me a new UUID, here's the current one that I want you to construct the new one from"

And then you complain in surprise when they match.

Edited May 2, 2018 by Draco18s

[NextInima]

What do you want to do? if you CLONE an Entity , they would be in the same place in eachother , do the same walk and the same things. They would go to the same Cords on the same time.

I think you would NOT even see the secound one. 

 

Try to create a NEW Entity with the same conditions.

 

Edited May 2, 2018 by NextInima

[tebreca]

12 hours ago, Draco18s said:

"Hey, give me a new UUID, here's the current one that I want you to construct the new one from"

And then you complain in surprise when they match.

Alright my bad, i should've taken a deeper look into the UUID's

 

35 minutes ago, diesieben07 said:

• I don't think you understand the unique part of Universally unique identifier (UUID). They must be unique, otherwise they are not UUIDs. So no, you can't have two entities with the same UUID.
• You must use Entity::writeToNBTOptional and EntityList.createEntityFromNBT only to interact with entity NBT. Do not use any other methods.
• After reading the entity call Entity::setUniqueId with a random UUID (Use MathHelper.getRandomUUID instead of UUID.randomUUID as the latter uses a secure random generator, which is slower and not needed here).

Thanks! that will definetly help me.

 

9 hours ago, NextInima said:

What do you want to do? if you CLONE an Entity , they would be in the same place in eachother , do the same walk and the same things. They would go to the same Cords on the same time.

I think you would NOT even see the secound one. 

 

Try to create a NEW Entity with the same conditions.

 

Im sorry but if you've seen my code you should've known that im using EntityLivingBase.

I don't know what entity im cloning, neither am i going to check that as i would lose compatability with entities not inside my mod building workspace.

And if i did call the constructor of it,  i would make a EntityLivingBase object. Which i can't upcast to the original entity object type.

 

Also EntityLivingBase is abstract.

Thanks for trying to help me atleast.

But please get your facts straight,

i literally made a new object and was trying to pass the same NBT in it, that would affect the position but i could move it, as i did do and the other entity wouldn't move with it as its AI is created at the object-specific method for AI.

Edited May 3, 2018 by tebreca