Hi,

I'm trying to save data using the WorldSavedData system and it work as long as I dont quit the game (not the world).

Here is my code :

Spoiler

package com.personnedu13.test.world;

import java.util.ArrayList;
import java.util.List;

import com.personnedu13.test.Main;
import com.personnedu13.test.blocks.BlockSave;
import com.personnedu13.test.tileentity.TileEntityTeleporter;

import net.minecraft.client.Minecraft;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraft.world.WorldProvider;
import net.minecraft.world.WorldProviderEnd;
import net.minecraft.world.WorldSavedData;
import net.minecraft.world.storage.MapStorage;

public class ModWorldSavedData extends WorldSavedData{
	
	private static final String TELEPORTER = Main.MODID + "_Teleporter";
	
	public static List<BlockSave> teleporterList = new ArrayList<BlockSave>();


	public ModWorldSavedData() {
		super(TELEPORTER);
	}
	public ModWorldSavedData(String name) {
		super(name);
	}
	
	@Override
	public void readFromNBT(NBTTagCompound nbt) {
		teleporterList.clear();
		int j = nbt.getInteger("size");
		if(j > 0) {
			for(int i = 0 ; i < j; i++) {
				int[] k = nbt.getIntArray("block_" + i);
				int dim = k[0];
				int posX = k[1];
				int posY = k[2];
				int posZ = k[3];
				BlockSave block = new BlockSave(dim, posX, posY, posZ);
				addTeleporterToList(block);
			}
		}
	}

	@Override
	public NBTTagCompound writeToNBT(NBTTagCompound nbt) {
		int j = teleporterList.size();
		nbt.setInteger("size", j);
		if(j > 0) {
			for(int i = 0 ; i < j; i++) {
				BlockSave l = teleporterList.get(i);
				int[] k = new int[4];
				k[0] = l.getDim();
				k[1] = l.getPos().getX();
				k[2] = l.getPos().getY();
				k[3] = l.getPos().getZ();
				nbt.setIntArray("block_" + i,k);
			}
		}
		return nbt;
	}
	
	public static void addTeleporterToList(BlockSave block) {
		if(teleporterList.size() > 0) {
			for (int i = 0; i < teleporterList.size(); i++) {
				if (block.getDim() == (teleporterList.get(i).getDim()) && block.getPos().equals(teleporterList.get(i).getPos())) {
					teleporterList.remove(i);
				}
			}
		}
		teleporterList.add(block);
		System.out.println(teleporterList);
	}
	
	public static ModWorldSavedData get(World world) {
		  MapStorage storage = world.getMapStorage();
		  ModWorldSavedData instance = (ModWorldSavedData) storage.getOrLoadData(ModWorldSavedData.class, TELEPORTER);

		  if (instance == null) {
		    instance = new ModWorldSavedData();
		    storage.setData(TELEPORTER, instance);
		  }
		  return instance;
		}
}

 

 

 

use the events WorldEvent.Load to load and WorldEvent.Save to save.             

 

this is an example:

 

	@SubscribeEvent
	public void onWorldLoad(WorldEvent.Load event) {
		ModWorldSavedData.get(event.getWorld());
	}

	@SubscribeEvent
	public void onWorldSave(WorldEvent.Save event) {
		ModWorldSavedData.get(event.getWorld()).markDirty();
	}

 

Edited July 30, 20178 yr by xWoom

Thx for your replies, i'll try to apply your advice and see if it work.

The List is static to enable the addBlock method to be call from another class but its a bad idea, I think I should use a packet to send the infos to the ModWorldSavedData class.

Edited July 28, 20178 yr by personnedu13

Ok now it work, when I place the block, the onBlockAdded method add the dim and the pos of the block to the addblocktolist method(server side only) and marked with markdirty for a further save.

I want to implant 2 other method, one of them is UpdateList that test if all block in the list exist(by testing if the block in the dimension is a teleporter), but how can I get the current world to test with the dimension ?

Ok thank you for your help !

But if I want to test whenever I want, I should load the chunk when I update the list ?

ok nice.

i'll try to make it work and publish my code to help future person that need help.

36 minutes ago, diesieben07 said:

You can use MinecraftServer::getWorld which will automatically load the world if it's not loaded.

Dont find it....

Spoiler

  

 

Edited July 28, 20178 yr by personnedu13

Spoiler

 

ublic void updateTeleporterList() {
		if( teleporterList.size() > 0 ) {
			for (int i = 0; i < teleporterList.size(); i++) {
				BlockSave block = teleporterList.get(i);
				World world = MinecraftServer.getWorld(block.getDim());
				if (!world.isRemote) {
					if (world.getTileEntity(block.getPos()) == null) {
						teleporterList.remove(i);
					}
					else if (!world.getTileEntity(block.getPos()).getClass().equals(TileEntityTeleporter.class)) {
						teleporterList.remove(i);
					}
				}
			}
		}
	}

 

I rarely used this syntax (MinecraftServer::getWorld) so I really dont know how to do ^^

Spoiler

public void updateTeleporterList() {
		if( teleporterList.size() > 0 ) {
			for (BlockSave block : teleporterList) {
				World world = new MinecraftServer()::worldServerForDimension(0);
						DimensionManager.getWorld(block.getDim());
				if (!(world.getTileEntity(block.getPos()) instanceof TileEntityTeleporter)) {
					teleporterList.remove(block);
				}
			}
		}
	}

 

 

an instance is individual for all object of the class and a static is common ?

I mean that static class are made for an unique object.

Edited July 28, 20178 yr by personnedu13

//Cannot instanciate type MinecraftServer...

World world = (MinecraftServer::getWorldByDim)

can I have an exemple plz ? It will be faster...

Edited July 28, 20178 yr by personnedu13