Frustrating Nullpointer-exception....

[OwnAgePau]

Hi all, i am getting this Nullpointer exception a lot right now and i have no idea why it is giving a nullpointer exception on getBlockId and sometimes on setBlockId. I had it working before (i'll show some code below), but right now i have changed some things which make my custom plants be placed only on some blocks and that they can't stack and fly in the air and such. That part now works, but now somehow the generation part works, which i was trying to make simpler but yet i haven't succeeded in getting it to work. So i am getting this nullpointer exception which is not really giving me much information of what is null... So when i try debugging that line it'll go great for about a million times, so to get to the part where it crashes i'd have to click a 1000 times. Well anyway here's my code:

 

So i was generating a custom tall grass like this: (and i know that i check all of the blocks it can't spawn on here, thats what i have been trying to get rid off, but it seems not to help when i take it away.

 

  Reveal hidden contents

 

package Mod_Ores.BiomeGen.WorldGen;

import java.util.Random;

import Mod_Ores.Init.SoulBlocks;
import Mod_Ores.Init.Config.SoulConfig;
import Mod_Ores.Init.Config.SoulConfigBlocks;
import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.world.World;
import net.minecraft.world.gen.feature.WorldGenerator;

public class WorldGenSoulGrass extends WorldGenerator
{
    /** Stores ID for WorldGenTallGrass */
    private int tallGrassID;
    private int tallGrassMetadata;

    public WorldGenSoulGrass(int par1, int par2)
    {
        this.tallGrassID = par1;
        this.tallGrassMetadata = par2;
    }

    public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
    {
        int l;

        Block block = null;
        do 
        {
            block = Block.blocksList[par1World.getBlockId(par3,  par4, par5)];
            if (block != null && !block.isLeaves(par1World, par3, par4, par5))
            {
                break;
            }
            par4--;
        } while (par4 > 0);

        for (l = 0; l < 128; ++l)
        {
            int i1 = par3 + par2Random.nextInt( - par2Random.nextInt(;
            int j1 = par4 + par2Random.nextInt(4) - par2Random.nextInt(4);
            int k1 = par5 + par2Random.nextInt( - par2Random.nextInt(;
           
            if (par1World.isAirBlock(i1, j1, k1) && Block.blocksList[this.tallGrassID].canBlockStay(par1World, i1, j1, k1) && Block.blocksList[this.tallGrassID].canPlaceBlockAt(par1World, i1, j1, k1) && !par1World.isAirBlock(i1, j1 - 1, k1))
            {
            	if(par1World.getBlockId(i1, j1 - 1, k1) != SoulConfigBlocks.soulLiquidFlowID && par1World.getBlockId(i1, j1 - 1, k1) != SoulConfigBlocks.soulLiquidStillID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.BogTallGrassBrown.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.BogTallGrassGrey.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.BogTallGrassGreen.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.BogTallGrassPurple.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SapplingGrape.get().blockID  && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.PlantCantaloupe.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.GrapesLeaves.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulLeaves.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulLeavesBlue.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulLeavesOrange.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulLeavesPink.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.HardwoodLeaves.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulLog.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.HardwoodLog.get().blockID  && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Slate.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Porphyry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Baneberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Blueberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Blackberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Cranberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Strawberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Razzberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Raspberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.FyrisedSand.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.FyrisedSandGrass.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulSnowTop.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulSnowBottom.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.FrozenGrass.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.FrozenTallGrass.get().blockID)
            	{
                //if(par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulWater.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulWaterMoving.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.BogTallGrassBrown.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.BogTallGrassGrey.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.BogTallGrassGreen.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.BogTallGrassPurple.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SapplingGrape.get().blockID  && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.PlantCantaloupe.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.GrapesLeaves.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulLeaves.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulLeavesBlue.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulLeavesOrange.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulLeavesPink.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulLeavesYellow.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulLog.get().blockID  && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Slate.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Porphyry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Baneberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Blueberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Blackberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Cranberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Strawberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Razzberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.Raspberry.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.FrozenTallGrass.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.FyrisedSand.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.FyrisedSandGrass.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulSnowBottom.get().blockID && par1World.getBlockId(i1, j1 - 1, k1) != SoulBlocks.SoulSnowTop.get().blockID)
                //{
    	            par1World.setBlock(i1, j1, k1, this.tallGrassID, 0, 2);
                }
            }
        }

        return true;
    }
}

 

 

 

So this is what i have in one of the blocks it CAN spawn on:

the custom grass block (which works fine itself, but all i did here was changing the canbePlacedOn and all that kind of methods)

 

  Reveal hidden contents

 

package Mod_Ores.Blocks;

import Mod_Ores.soul_forest;
import Mod_Ores.Init.SoulBlocks;
import Mod_Ores.Init.Config.SoulConfigBlocks;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import java.util.Random;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.util.Icon;
import net.minecraft.world.ColorizerGrass;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import net.minecraftforge.common.ForgeDirection;
import net.minecraftforge.common.IPlantable;

public class BlockBogGrass extends Block
{
    @SideOnly(Side.CLIENT)
    private Icon iconBogTop;
    @SideOnly(Side.CLIENT)
    private Icon iconSnowSide;
    @SideOnly(Side.CLIENT)
    private Icon iconBogSideOverlay;

    public BlockBogGrass(int par1)
    {
        super(par1, Material.grass);
        this.setTickRandomly(true);
        this.setCreativeTab(soul_forest.tabSoulBlocks);
        this.setStepSound(soundGrassFootstep);
        this.setHardness(0.2F);
    }

    @SideOnly(Side.CLIENT)

    /**
     * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
     */
    public Icon getIcon(int par1, int par2)
    {
        return par1 == 1 ? this.iconBogTop : (par1 == 0 ?  SoulBlocks.BogDirt.get().getBlockTextureFromSide(par1) : this.blockIcon);
    }
   
    @Override
public boolean canSustainPlant(World world, int x, int y, int z,
		ForgeDirection direction, IPlantable plant) 
    {
    	if(plant != Block.plantYellow || plant != Block.plantRed)
    	{
    		return true;
    	}
    	else
    	{
    		return false;
    	}
}

/**
     * Ticks the block if it's been scheduled
     */
    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    {
        if (!par1World.isRemote)
        {
            if (par1World.getBlockLightValue(par2, par3 + 1, par4) < 4 && par1World.getBlockLightOpacity(par2, par3 + 1, par4) > 2)
            {
                par1World.setBlock(par2, par3, par4, SoulConfigBlocks.bogDirtID);
            }
            else if (par1World.getBlockLightValue(par2, par3 + 1, par4) >= 9)
            {
                for (int l = 0; l < 4; ++l)
                {
                    int i1 = par2 + par5Random.nextInt(3) - 1;
                    int j1 = par3 + par5Random.nextInt(5) - 3;
                    int k1 = par4 + par5Random.nextInt(3) - 1;
                    int l1 = par1World.getBlockId(i1, j1 + 1, k1);

                    if (par1World.getBlockId(i1, j1, k1) == SoulConfigBlocks.bogDirtID && par1World.getBlockLightValue(i1, j1 + 1, k1) >= 4 && par1World.getBlockLightOpacity(i1, j1 + 1, k1) <= 2)
                    {
                        par1World.setBlock(i1, j1, k1, SoulConfigBlocks.bogDirtID);
                    }
                }
            }
        }
    }

    /**
     * Returns the ID of the items to drop on destruction.
     */
    public int idDropped(int par1, Random par2Random, int par3)
    {
        return SoulBlocks.BogDirt.get().idDropped(0, par2Random, par3);
    }

    @SideOnly(Side.CLIENT)

    /**
     * Retrieves the block texture to use based on the display side. Args: iBlockAccess, x, y, z, side
     */
    public Icon getBlockTexture(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    {
        if (par5 == 1)
        {
            return this.iconBogTop;
        }
        else if (par5 == 0)
        {
            return SoulBlocks.BogDirt.get().getBlockTextureFromSide(par5);
        }
        else
        {
            Material material = par1IBlockAccess.getBlockMaterial(par2, par3 + 1, par4);
            return material != Material.snow && material != Material.craftedSnow ? this.blockIcon : this.iconSnowSide;
        }
    }

    @SideOnly(Side.CLIENT)

    /**
     * When this method is called, your block should register all the icons it needs with the given IconRegister. This
     * is the only chance you get to register icons.
     */
    public void registerIcons(IconRegister par1IconRegister)
    {
        this.blockIcon = par1IconRegister.registerIcon("soulforest:Bog_grass");
        this.iconBogTop = par1IconRegister.registerIcon("soulforest:Bog_grass_top");
        this.iconSnowSide = par1IconRegister.registerIcon("soulforest:Bog_grass");
        this.iconBogSideOverlay = par1IconRegister.registerIcon("soulforest:Bog_grass");
    }
}

 

 

 

And this is one of the plant blocks: (this one also works like it should, i tried in the overworld by placing it on blocks etc, all i changed was the canBePlacedOn etc.)

 

  Reveal hidden contents

 

package Mod_Ores.Blocks;

import Mod_Ores.IScollectable;
import Mod_Ores.soul_forest;
import Mod_Ores.Init.Config.SoulConfigBlocks;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

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

import net.minecraft.block.Block;
import net.minecraft.block.BlockFlower;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.stats.StatList;
import net.minecraft.util.Icon;
import net.minecraft.world.ColorizerFoliage;
import net.minecraft.world.ColorizerGrass;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

import net.minecraftforge.common.EnumPlantType;
import net.minecraftforge.common.ForgeDirection;
import net.minecraftforge.common.ForgeHooks;
import net.minecraftforge.common.IShearable;

public class BlockBogTallGrassBrown extends BlockFlower implements IScollectable
{
    private static final String[] grassTypes = new String[] {"Bog_grass_tall_dark"};
    @SideOnly(Side.CLIENT)
    private Icon[] iconArray;

    public BlockBogTallGrassBrown(int par1)
    {
        super(par1, Material.grass);
        float f = 0.4F;
        this.setStepSound(soundGrassFootstep);
        this.setBlockBounds(0.5F - f, 0.0F, 0.5F - f, 0.5F + f, 0.8F, 0.5F + f);
        this.setCreativeTab(soul_forest.tabSoulBerries);
    }

    @SideOnly(Side.CLIENT)

    /**
     * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
     */
    public Icon getIcon(int par1, int par2)
    {
        if (par2 >= this.iconArray.length)
        {
            par2 = 0;
        }

        return this.iconArray[par2];
    }

    public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
    {
        Block block = Block.blocksList[par1World.getBlockId(par2, par3 - 1, par4)];
        if(block != null)
        {
        	if(block.canSustainPlant(par1World, par2, par3 - 1, par4, ForgeDirection.UP, this))
        	return true;   
        }
        else
        {
        	return false;
        }
        
        return block.canSustainPlant(par1World, par2, par3 - 1, par4, ForgeDirection.UP, this);
    }

    /**
     * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
     * their own) Args: x, y, z, neighbor blockID
     */
    public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    {
        this.checkBlockCoordValid(par1World, par2, par3, par4);
    }

    /**
     * Checks if current block pos is valid, if not, breaks the block as dropable item. Used for reed and cactus.
     */
    protected final void checkBlockCoordValid(World par1World, int par2, int par3, int par4)
    {
        if (!this.canBlockStay(par1World, par2, par3, par4))
        {
            this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
            par1World.setBlockToAir(par2, par3, par4);
        }
    }

    /**
     * Can this block stay at this position.  Similar to canPlaceBlockAt except gets checked often with plants.
     */
    public boolean canBlockStay(World par1World, int par2, int par3, int par4)
    {
        return this.canPlaceBlockAt(par1World, par2, par3, par4);
    }
    
    @Override
    public EnumPlantType getPlantType(World world, int x, int y, int z)
    {
        return EnumPlantType.Cave;
    }
    
/**
     * Returns the ID of the items to drop on destruction.
     */
    public int idDropped(int par1, Random par2Random, int par3)
    {
        return -1;
    }

    /**
     * Returns the usual quantity dropped by the block plus a bonus of 1 to 'i' (inclusive).
     */
    public int quantityDroppedWithBonus(int par1, Random par2Random)
    {
        return 1 + par2Random.nextInt(par1 * 2 + 1);
    }

    /**
     * Called when the player destroys a block with an item that can harvest it. (i, j, k) are the coordinates of the
     * block and l is the block's subtype/damage.
     */
    public void harvestBlock(World par1World, EntityPlayer par2EntityPlayer, int par3, int par4, int par5, int par6)
    {
        super.harvestBlock(par1World, par2EntityPlayer, par3, par4, par5, par6);
    }

    /*@SideOnly(Side.CLIENT)
    public int getBlockColor()
    {
        double d0 = 0.5D;
        double d1 = 1.0D;
        return ColorizerGrass.getGrassColor(d0, d1);
    }

    @SideOnly(Side.CLIENT)*/

    /**
     * Returns the color this block should be rendered. Used by leaves.
     */
    /*public int getRenderColor(int par1)
    {
        return 0;
    }*/

    @SideOnly(Side.CLIENT)

    /**
     * Returns a integer with hex for 0xrrggbb with this color multiplied against the blocks color. Note only called
     * when first determining what to render.
     */
    public int colorMultiplier(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
    {
        int l = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
        return l == 0 ? 16777215 : par1IBlockAccess.getBiomeGenForCoords(par2, par4).getBiomeGrassColor();
    }

    /**
     * Get the block's damage value (for use with pick block).
     */
    public int getDamageValue(World par1World, int par2, int par3, int par4)
    {
        return par1World.getBlockMetadata(par2, par3, par4);
    }

    @SideOnly(Side.CLIENT)

    /**
     * returns a list of blocks with the same ID, but different meta (eg: wood returns 4 blocks)
     */
    public void getSubBlocks(int par1, CreativeTabs par2CreativeTabs, List par3List)
    {
        for (int j = 1; j < 2; ++j)
        {
            par3List.add(new ItemStack(par1, 1, j));
        }
    }

    @SideOnly(Side.CLIENT)

    /**
     * When this method is called, your block should register all the icons it needs with the given IconRegister. This
     * is the only chance you get to register icons.
     */
    public void registerIcons(IconRegister par1IconRegister)
    {
        this.iconArray = new Icon[2];
	for (int i = 0; i < this.iconArray.length; ++i)
	{
		this.iconArray[i] = par1IconRegister.registerIcon("soulforest:Bog_grass_tall_dark");
	}
    }

    @Override
    public ArrayList<ItemStack> getBlockDropped(World world, int x, int y, int z, int meta, int fortune)
    {
        ArrayList<ItemStack> ret = new ArrayList<ItemStack>();
        if (world.rand.nextInt( != 0)
        {
            return ret;
        }

        ItemStack item = ForgeHooks.getGrassSeed(world);
        if (item != null)
        {
            ret.add(item);
        }
        return ret;
    }

@Override
public boolean isCollectable(ItemStack item, World world, int x, int y, int z) 
{
	return false;
}

@Override
public ArrayList<ItemStack> onCollected(ItemStack item, World world, int x, int y, int z, int fortune) 
{
	return null;
}
}

 

 

 

This is the code i use to generate it:

            for (int g1 = 0; g1 < 40; g1++)
            {
            	l1 = k + this.soulRNG.nextInt(16) + 8;
            	i2 = this.soulRNG.nextInt(128);
            	j2 = l + this.soulRNG.nextInt(16) + 8;
                WorldGenerator worldgenerator1 = soul_forest.getRandomWorldGenForGrass(this.soulRNG, 2);
                worldgenerator1.generate(this.worldObj, this.soulRNG, l1, i2, j2);
            }

 

The crash report:

 

  Reveal hidden contents

 

---- Minecraft Crash Report ----
// Don't do that.

Time: 21-8-13 17:43
Description: Exception in server tick loop

java.lang.NullPointerException
at net.minecraft.world.chunk.Chunk.setBlockIDWithMetadata(Chunk.java:698)
at net.minecraft.world.World.setBlock(World.java:557)
at Mod_Ores.BiomeGen.WorldGen.WorldGenSoulGrass.generate(WorldGenSoulGrass.java:52)
at Mod_Ores.Dimension.ChunkProviderMarona.populate(ChunkProviderMarona.java:582)
at net.minecraft.world.gen.ChunkProviderServer.populate(ChunkProviderServer.java:258)
at net.minecraft.world.chunk.Chunk.populateChunk(Chunk.java:1249)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:153)
at net.minecraft.server.management.PlayerInstance.<init>(PlayerInstance.java:37)
at net.minecraft.server.management.PlayerManager.getOrCreateChunkWatcher(PlayerManager.java:110)
at net.minecraft.server.management.PlayerManager.addPlayer(PlayerManager.java:147)
at net.minecraft.server.management.ServerConfigurationManager.func_72375_a(ServerConfigurationManager.java:220)
at net.minecraft.server.management.ServerConfigurationManager.playerLoggedIn(ServerConfigurationManager.java:268)
at net.minecraft.server.management.ServerConfigurationManager.initializeConnectionToPlayer(ServerConfigurationManager.java:136)
at net.minecraft.server.integrated.IntegratedServerListenThread.networkTick(IntegratedServerListenThread.java:97)
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:689)
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:585)
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:129)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.6.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 965345616 bytes (920 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M
AABB Pool Size: 4130 (231280 bytes; 0 MB) allocated, 3926 (219856 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 14
FML: MCP v8.04 FML v6.2.35.804 Minecraft Forge 9.10.0.804 4 mods loaded, 4 mods active
mcp{8.04} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{6.2.35.804} [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{9.10.0.804} [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
soulforest{1.9.25} [soul Forest] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 10329 (578424 bytes; 0 MB) allocated, 10329 (578424 bytes; 0 MB) used
Player Count: 1 / 8; [EntityPlayerMP['Player891'/430, l='V', x=-120,00, y=66,00, z=247,00]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'

 

 

 

I appreciate your help

[hydroflame]

line 698 of Chunk.java:

  Quote

Block.blocksList[l1].onSetBlockIDWithMetaData(this.worldObj, j2, par2, k2, i2);

do you have your block generated at that point ?

[OwnAgePau]

you mean the custom grass block or the custom grass plant?

 

Because that is where the block (plant) gets placed... basically.

[hydroflame]

well whatever this method is trying to get

par1World.setBlock(i1, j1, k1, this.tallGrassID, 0, 2);

im guessing its the plant but yeah, does thsi block exists at that  point ?

[OwnAgePau]

No thats where it gets placed, why?

[hydroflame]

no i mean, does the object exists, (like code wise)

 

like the programe expect to find somethign at

 

Block.blocksList[tallGrassId]

 

and if theres nothing (because the block isnt created) well its gon crash

[OwnAgePau]

Well, it doesn't make sense as it was working before like that exactly.. So it must go wrong somewhere, but i serioulsy don't know.. I'm having a code-block or whatever you want to call it, so how would i check if it is?

[hydroflame]

well heres i would start debugging that

 

Block.blocksList[l1].onSetBlockIDWithMetaData(this.worldObj, j2, par2, k2, i2);

the only thigns here that can throw an NPE is

blocksList[l1].onSetBlockIDWithMetaData

because j2, par2, k2, i2 can throw null and no one cares, this.worlObj can be null too if its a problem it would only throw an exception later

 

so what i would do is right before this line is called:

 

if(Block.blockList[l1]==null){
System.out.println("the block at "+l1+" was null :\ this is bad ");
}
Block.blocksList[l1].onSetBlockIDWithMetaData(this.worldObj, j2, par2, k2, i2);

remember you can change the vanilla code but make sure to ctrl+z all your changes after (i do it a lot for debugging)

 

 

[OwnAgePau]

Well it isn't null... As i thought it was. Block.blosckList[this.tallGrassID], tallGrassID is the id passed in from the WorldGen so it is never null.

[OwnAgePau]

Please help, i don't know whats causing it :L it probably has something to do with the fact that it wants to place the block, but it somehow can't but i don't know what exactly. If someone would help me figure it out that would be great.

[GotoLink]

Unless you have registered a block with tallGrassID, blocksList[tallGrassID] will be null.

 

So you should check where your block is registered, and if you called the same id when doing

new WorldGenSoulGrass(id, meta)

[OwnAgePau]

Well i obviosly registered the block, and i used this method as in Blockslist[theTallgrassID] before and it was working fine, but now that i change a couple of canBlockBePlacedOn methods and such it is somehow not working anymore.

 

For example i registered the block BogTallGrassGrey, with an idea bogTallGrassGreyID of 3517 (in my config) Then when i use the block.blockID which i checked is not null when entering that method, i also tried checking wether Blockslist[theTallGrassID] was null, but that was also not null. I am pretty confused why it is throwing this error, because if i remove this little bit of code and start testing. It then throws errors in long not changed code from generating custom fires or custom trees. Its just odd...

[robustus]

Try this code instead

 

      for (int g1 = 0; g1 < 40; g1++)
            {
            	l1 = k + this.soulRNG.nextInt(16) + 8;
            	i2 = this.soulRNG.nextInt(128);
            	j2 = l + this.soulRNG.nextInt(16) + 8;
                WorldGenSoulGrass worldgenerator1 = new WorldGenSoulGrass(this.soulRNG, 2);
                worldgenerator1.generate(this.worldObj, this.soulRNG, l1, i2, j2);
            }

[OwnAgePau]

I tried that, and i now still have the same problem...

[robustus]

Out of curiousity what exactly are the k and l variables that you are adding to the chunk coordinates?