I am working on an extremely simple mod that checks new chunks that are loaded to see if they contain any of a particular set of blocks. It then outputs the results a text file.

The mod is working exactly as intended in any single-player world that I load. However, it does not seem to work when I play on a server.  It's an anarchy server where client-side hacks are allowed, so I'm not sure why my mod isn't working.

Can anyone look over this and tell me where I'm messing up? I would have though that all the code I've written is entirely client-side.

 

Here is the class file where all the action takes place:

package com.imptea.basefinder;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;

import org.apache.commons.lang3.ArrayUtils;

import net.minecraft.block.Block;
import net.minecraft.block.state.IBlockProperties;
import net.minecraft.init.Blocks;
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 NewChunkScanner {
	// List of block types to look for
	public Block[] blockList = { Blocks.COAL_ORE, Blocks.IRON_ORE, Blocks.GRAVEL };

	// Each time a chunk is loaded...
	@SubscribeEvent
	public void ChunkLoad(ChunkEvent.Load event) throws IOException {
		World world = event.getWorld();
		Chunk chunk = event.getChunk();

		// Grabs the lower X/Z corner of the newly loaded chunk for future use
		int chunk_x = chunk.getPos().getXStart();
		int chunk_z = chunk.getPos().getZStart();

		// Opens up the text file to append block coordinates
		BufferedWriter writer = new BufferedWriter(new FileWriter("C:\\Temp\\BlockCoords.txt", true));

		// Scans blocks in new chunk, and looks for blocks that are in blockList (only
		// scans even coords for speed)
		beginChunkSearch: 
		for (int x = 0; x < 16; x += 2) {
			for (int z = 0; z < 16; z += 2) {
				// Only scans from y=35 to the highest block at that X,Z coord
				for (int y = 35; y < chunk.getHeightValue(x, z); y += 2) {
					Block thisBlock = chunk.getBlockState(x, y, z).getBlock();
					for (int i = 0; i < blockList.length; ++i) {
						//If we have a match...
						if (thisBlock == blockList[i]) {
							//...writes a report to the txt file
							writer.write("Chunk_" + Integer.toString(chunk_x / 16) + "_"
									+ Integer.toString(chunk_z / 16) + ": "
									+ thisBlock.toString().substring(16, thisBlock.toString().length() - 1) + ": "
									+ Integer.toString(x + chunk_x) + " " + Integer.toString(y) + " "
									+ Integer.toString(z + chunk_z) + "\n");
							//...and skips on the the next chunk.
							break beginChunkSearch;
						}
					}
				}
			}
		}
		writer.close();
	}
}

 

 

...And here is the Main class, in case I've messed something up there:

package com.imptea.basefinder;

import net.minecraft.world.World;
import net.minecraft.world.chunk.Chunk;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.world.ChunkEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.Mod.Instance;
import net.minecraftforge.fml.common.SidedProxy;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.common.gameevent.TickEvent;

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;

import com.imptea.basefinder.proxy.CommonProxy;
import com.imptea.basefinder.util.Reference;

@Mod(modid = Reference.MOD_ID, name = Reference.NAME, version = Reference.VERSION, clientSideOnly = true)
public class Main {

	@Instance
	public static Main instance;

	@SidedProxy(clientSide = Reference.CLIENT_PROXY_CLASS, serverSide = Reference.COMMON_PROXY_CLASS)
	public static CommonProxy proxy;

	@EventHandler
	public static void PreInit(FMLPreInitializationEvent event) {
		MinecraftForge.EVENT_BUS.register(new NewChunkScanner());
	}

	@EventHandler
	public static void init(FMLInitializationEvent event) throws IOException {

	}

	@EventHandler
	public static void PostInit(FMLPostInitializationEvent event) {

	}
}

 

 

So why can't this run on a server?  Any help would be greatly appreciated.

1) 1.12 is no longer supported here

2)

4 hours ago, ImpTea said:

clientSideOnly = true

I WONDER WHAT THIS DOES

9 minutes ago, Draco18s said:

1) 1.12 is no longer supported here

2)

I WONDER WHAT THIS DOES

Ah - where can I go for 1.12 support?

And I'm not sure what you mean with your second point, I WANT it to be client side only.