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[1.11.2] Blocks list from chunk

Kporal

By Kporal
in Modder Support

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Kporal Tree Puncher

Kporal

Posted
Posted

I've made a custom dimension, but rather than using a chunk generator, my own is just a "copy" of the overworld and i want replace some blocks by other.

So i need to get a list of all block on the chunk and replacing them by the wanted block or remove them, but i don't know how to get a list of block in the chunk, maybe this way is just impossible ?

Kporal Tree Puncher

Kporal

Posted
  • Author
Posted

I'm doing something like this, doesn't test it yet but i think i'm on the right way : 

package com.kporal.lau.events;

import java.util.Map;

import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.chunk.Chunk;
import net.minecraftforge.event.world.ChunkEvent.Load;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class OnChunkEvent {
	
	@SubscribeEvent
	public void EditChunk( Load e ) {
		
		Chunk c = e.getChunk();
		
		Map<BlockPos, TileEntity> map = c.getTileEntityMap();
		for( BlockPos p : map.keySet() ) {
		    
		    c.removeTileEntity( p );
		    
		}
	}
}

removeTileEntity may remove my desired block ? then i should replace a new block at the position, or i need to use setBlockState ?

Kporal Tree Puncher

Kporal

Posted
  • Author
Posted

Ok, my custom dimension is a mimic of the overworld, it work, i can teleport, spawn etc, but now, because i don't use a custom chunk generator i try to use the chunk Load event to replace undesired block by other, my actual code is more like : 

package com.kporal.lau.events;

import java.util.Map;

import net.minecraft.init.Blocks;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.chunk.Chunk;
import net.minecraftforge.event.world.ChunkEvent.Load;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class OnChunkEvent {
	
	@SubscribeEvent
	public void EditChunk( Load e ) {
		
		Chunk c = e.getChunk();
		
		Map<BlockPos, TileEntity> map = c.getTileEntityMap();
		for( BlockPos p : map.keySet() ) {
		    
			if( c.getBlockState( p ).getBlock() == Blocks.DIRT ) {
				c.removeTileEntity( p );
				//c.addTileEntity( p, );
			}
		    
		}
	}
}

it's just an exemple for dirt block, but when i'm doing a better job here i'm gonna use some array, i hope to give you suffisant information ( sorry if my english is bad :/ )

Kporal Tree Puncher

Kporal

Posted
  • Author
Posted

my explanation isn't good, it's not a mimic, the "erzine" ( my custom one ) doens't mimic stuff from the overworld, it was just generated with the same seed, but totally separate dimension.

Kporal Tree Puncher

Kporal

Posted
  • Author
Posted

Actually my code is : 

package com.kporal.lau.events;

import java.util.Map;

import com.kporal.lau.LAU;

import net.minecraft.block.Block;
import net.minecraft.block.BlockSand;
import net.minecraft.block.BlockStaticLiquid;
import net.minecraft.init.Blocks;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraft.world.chunk.Chunk;
import net.minecraftforge.event.world.ChunkEvent.Load;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class OnChunkEvent {
	
	//private final Block[] toNetherrack = { Blocks.SAND };
	//private final Blocks[] toLava = { Blocks.WATER };
	
	@SubscribeEvent
	public void EditChunk( Load e ) {
		
		World w = e.getWorld();
		
		if( !w.isRemote && w.provider.getDimension() == LAU.erzineId ) {
		
			Chunk c = e.getChunk();
			Map<BlockPos, TileEntity> map = c.getTileEntityMap();
			
			for( BlockPos p : map.keySet() ) {
				
				Block b = c.getBlockState( p ).getBlock();
				
			    /*if( ArrayUtils.contains( toNetherrack, c.getBlockState( p ).getBlock() )) {
			    	c.removeTileEntity( p );
			    }*/
				
				if( b instanceof BlockSand ) {
					// Convert to soulsand
					c.removeTileEntity( p );
					c.setBlockState( p, Blocks.SOUL_SAND.getDefaultState() );
				}
				if( b instanceof BlockStaticLiquid ) {
					// Convert to lava
					c.removeTileEntity( p );
					c.setBlockState( p, Blocks.LAVA.getDefaultState() );
				}
				
			}
		}
	}
}

But it doesn't work, i mean nothing happen, i register the event on the FMLInit 

@EventHandler
public void Init( FMLInitializationEvent e ) {
	MinecraftForge.EVENT_BUS.register( new OnChunkEvent() );
}

But i have no error at all, so i know i'm wrong because nothing happen, but i don't know where i'm wrong

Kporal Tree Puncher

Kporal

Posted
  • Author
Posted

Ok so finally i check ... nothing so this is why nothing is replace ... theire is a way to get all chunk block directly ? or i need to use a for <<4 loop ?

Kporal Tree Puncher

Kporal

Posted
  • Author
Posted

Yes, i've made some test and i think i've found a way to ensure the game do not load heavily by using nbttag when a chunk is converted, may work but for now my "converter" work ( and like you said it's pretty laggy but not everywhere almost at the first generation ).

 

So i need to know if i can use nbttag into chunk, maybe not but in world should be better by saving something like that : chunk_0_-1_0 as id with isConverted to avoid a second convertion.

 

But in case of needed, i'm also gonna make an admin command to re convert a chunk !

 

And my last possibility but actually ... i think it don't work :/ ... changing the height of the map ... because i don't need 256 but ... should be better with 96 height trying to do it with :

 

ErzineProvider.class 

package com.kporal.lau.dimensions;

import com.kporal.lau.LAU;

import net.minecraft.init.Biomes;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.Vec3d;
import net.minecraft.world.DimensionType;
import net.minecraft.world.World;
import net.minecraft.world.WorldProvider;
import net.minecraft.world.biome.Biome;
import net.minecraft.world.biome.BiomeProviderSingle;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class ErzineProvider extends WorldProvider {

	public World worldObj;
	
	public void registerWorldChunkManager() {
		this.biomeProvider = new BiomeProviderSingle( Biomes.VOID );
		this.setDimension( LAU.erzineId );
		this.setAllowedSpawnTypes( false, false );
		this.hasNoSky = false;
		this.doesWaterVaporize = true;
	}

	public Biome getBiomeGenForCoords( BlockPos pos ) { return Biomes.VOID; }

	@Override
	public boolean canRespawnHere() { return false; }

	@Override
	public boolean isSurfaceWorld() { return false; }

	@Override
	public DimensionType getDimensionType() { return LAU.ERZINE_DIMENSION; }
	
	@Override
	public float calculateCelestialAngle( long worldTime, float partialTicks ) { return 0.0F; }

	@Override
	@SideOnly( Side.CLIENT )
	public float[] calcSunriseSunsetColors( float celestialAngle, float partialTicks ) { return null; }
	
	@Override
	@SideOnly( Side.CLIENT )
	public Vec3d getFogColor( float p_76562_1_, float p_76562_2_ ) {
		return new Vec3d(0.20000000298023224D, 0.029999999329447746D, 0.029999999329447746D);
	}
	
	@Override
	@SideOnly( Side.CLIENT )
	public float getCloudHeight() { return 12.0F; }
	
	@SideOnly( Side.CLIENT )
    public boolean doesXZShowFog( int x, int z ) { return true; }
	
	@Override
	public int getHeight() { return 96; }

	@Override
    public int getActualHeight() { return 96; }

}

But ... because my "Erzine" dimension is a "copy" of the overworld it's doesn't work ( i need to check something ... ).

Kporal Tree Puncher

Kporal

Posted
  • Author
Posted

Ok it work really fine with nbt :)

package com.kporal.lau.events;

import com.kporal.lau.LAU;

import net.minecraft.block.Block;
import net.minecraft.block.BlockDirt;
import net.minecraft.block.BlockFalling;
import net.minecraft.block.BlockLiquid;
import net.minecraft.block.BlockOre;
import net.minecraft.block.BlockSandStone;
import net.minecraft.block.BlockStone;
import net.minecraft.init.Blocks;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraft.world.chunk.Chunk;
import net.minecraftforge.event.world.ChunkEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class OnChunkEvent {
	
	//private final Block[] toNetherrack = { Blocks.SAND };
	//private final Block[] toEndstone = { Blocks.END_STONE };
	//private final Block[] toDestroy = { Blocks.OAK_STAIRS };
	
	@SubscribeEvent
	public void EditChunk( ChunkEvent.Load e ) {
		
		World w = e.getWorld();
		
		if( !w.isRemote && w.provider.getDimension() == LAU.ERZINEID ) {
			
			NBTTagCompound nbt = w.getWorldInfo().getDimensionData( LAU.ERZINEID );
			Chunk c = e.getChunk();
			String chunkid = "erzineChunk:" + c.xPosition + "_" + c.zPosition;
			
			if( nbt.hasKey( chunkid ) ) { return; }
			
			int cx = c.xPosition << 4;
			int cy = w.getHeight();
			int cz = c.zPosition << 4;
			
			for( int x = cx - 16; x < cx; x++ ) {
				for( int y = 0; y < cy; y++ ) {
					for( int z = cz - 16; z < cz; z++ ) {
						
						BlockPos p = new BlockPos( x, y, z );
						Block b = c.getBlockState( p ).getBlock();
						
						if( b instanceof BlockFalling && b != Blocks.SOUL_SAND ) { c.setBlockState( p, Blocks.SOUL_SAND.getDefaultState() ); }
						if( b instanceof BlockLiquid && b != Blocks.LAVA ) { c.setBlockState( p, Blocks.LAVA.getDefaultState() ); }
						if(( b instanceof BlockOre || b instanceof BlockStone || b instanceof BlockSandStone ) && b != Blocks.END_STONE ) { c.setBlockState( p, Blocks.END_STONE.getDefaultState() ); }
						if( b instanceof BlockDirt && b != Blocks.NETHERRACK ) { c.setBlockState( p, Blocks.NETHERRACK.getDefaultState() ); }
						//w.destroyBlock( p, false );
						
					}
				}
			}
			
			nbt.setBoolean( chunkid, true );
			w.getWorldInfo().setDimensionData( LAU.ERZINEID, nbt );
		}
	}
}

And now i need to clean up entity spawn, and decorate event, if i'm right tree is on the decorate event ?

I also need to clear every structure ( with event too ... to prevent them to spawn )

Kporal Tree Puncher

Kporal

Posted
  • Author
Posted

Now i'm here :

 

ErzineConverter.class

Spoiler 

package com.kporal.lau.events;

import com.kporal.lau.LAU;

import net.minecraft.block.Block;
import net.minecraft.block.BlockDirt;
import net.minecraft.block.BlockFalling;
import net.minecraft.block.BlockLiquid;
import net.minecraft.block.BlockOre;
import net.minecraft.block.BlockSandStone;
import net.minecraft.block.BlockStone;
import net.minecraft.init.Blocks;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraft.world.chunk.Chunk;
import net.minecraftforge.event.entity.living.LivingSpawnEvent;
import net.minecraftforge.event.terraingen.DecorateBiomeEvent;
import net.minecraftforge.event.terraingen.PopulateChunkEvent;
import net.minecraftforge.event.world.ChunkEvent;
import net.minecraftforge.fml.common.eventhandler.Event.Result;
import net.minecraftforge.fml.common.eventhandler.EventPriority;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class ErzineConverter {
	
	@SubscribeEvent( priority = EventPriority.HIGH )
	public void EditChunk( ChunkEvent.Load e ) {
		
		World w = e.getWorld();
		
		if( !w.isRemote && w.provider.getDimension() == LAU.ERZINEID ) {
			
			NBTTagCompound nbt = w.getWorldInfo().getDimensionData( LAU.ERZINEID );
			Chunk c = e.getChunk();
			String chunkid = "erzineChunk:" + c.xPosition + "_" + c.zPosition;
			
			if( nbt.hasKey( chunkid ) ) { return; }
			
			int cx = c.xPosition << 4;
			int cy = w.getHeight();
			int cz = c.zPosition << 4;
			
			for( int x = cx - 16; x < cx; x++ ) {
				for( int y = 0; y < cy; y++ ) {
					for( int z = cz - 16; z < cz; z++ ) {
						
						BlockPos p = new BlockPos( x, y, z );
						Block b = c.getBlockState( p ).getBlock();
						
						// Removing unwanted liquids
						if( b instanceof BlockLiquid && b != Blocks.LAVA ) { c.setBlockState( p, Blocks.LAVA.getDefaultState() ); }
						
						// Converting sand and gravel
						if( b instanceof BlockFalling ) { c.setBlockState( p, Blocks.SOUL_SAND.getDefaultState() ); }
						
						// Converting "stones"
						if( b instanceof BlockOre || b instanceof BlockStone || b instanceof BlockSandStone ) { c.setBlockState( p, Blocks.END_STONE.getDefaultState() ); }
						
						// Populating netherack
						if( b instanceof BlockDirt || b == Blocks.GRASS || b == Blocks.GRASS_PATH ) { c.setBlockState( p, Blocks.NETHERRACK.getDefaultState() ); }
						
						// Finishing by cleaning every unwanted blocks
						/*if( b != Blocks.LAVA && b != Blocks.SOUL_SAND && b != Blocks.END_STONE && b != Blocks.NETHERRACK && b != Blocks.AIR && b != Blocks.BEDROCK ) {
							w.destroyBlock( p, false );
						}*/
					}
				}
			}
			
			nbt.setBoolean( chunkid, true );
			w.getWorldInfo().setDimensionData( LAU.ERZINEID, nbt );
		}
	}
	
	@SubscribeEvent( priority = EventPriority.HIGHEST )
	public void DecoPre( DecorateBiomeEvent.Pre e ) {
		World w = e.getWorld();
		if( !w.isRemote && w.provider.getDimension() == LAU.ERZINEID ) {
			if( e.isCancelable() ) e.setCanceled( true );
			if( e.hasResult() ) e.setResult( Result.DENY );
		}
	}
	
	@SubscribeEvent( priority = EventPriority.HIGHEST )
	public void DecorateBiome( DecorateBiomeEvent.Decorate e ) {
		World w = e.getWorld();
		if( !w.isRemote && w.provider.getDimension() == LAU.ERZINEID ) {
			if( e.isCancelable() ) e.setCanceled( true );
			if( e.hasResult() ) e.setResult( Result.DENY );
		}
	}
	
	@SubscribeEvent( priority = EventPriority.HIGHEST )
	public void PopulateChunk( PopulateChunkEvent.Populate e ) {
		World w = e.getWorld();
		if( !w.isRemote && w.provider.getDimension() == LAU.ERZINEID ) {
			if( e.isCancelable() ) e.setCanceled( true );
			if( e.hasResult() ) e.setResult( Result.DENY );
		}
	}
	
	@SubscribeEvent
	public void LivingSpawn( LivingSpawnEvent e ) {
		World w = e.getWorld();
		if( !w.isRemote && w.provider.getDimension() == LAU.ERZINEID ) {
			if( e.isCancelable() ) e.setCanceled( true );
			if( e.hasResult() ) e.setResult( Result.DENY );
		}
	}
}

 

Yes i use DecorateBiomeEvent Pre and Decorate ( i've made this for testing purpose ) but, i'm in trouble, my main event for replacing block do not clear everything, sometime some flower, grass or tree is populated on my world and i don't know how to canceled that or maybe by doing a second loop ...

 

But first, my first problem here is at the bottom, LivingSpawn, i don't understand why this not work, i've made this to prevent creature to spawn but ... i also use this on my world provider : this.setAllowedSpawnTypes( false, false ); ...

 

And why some tree / flower / water keep on the world ... i'm trying a lot of thing but nothing seem to really clear the world

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