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Posted

i'm a newbie at modding. So far, i have made simple blocks and items. I have not even coded in a single mob (i am trying to create a biome though). I want to make a biome in the end. But i don't know how to make a grass block for said biome. Does anyone know how to code in a custom Grass Block?

Posted
[quote name="LordMastodon" post="175093" timestamp="1440918552"]
Perhaps try looking at how the grass block works...
[/quote]
i did try to copy and paste the grass block code and rename things. but i keep getting this error..


package com.kami.blocks;

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.IGrowable;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.init.Blocks;
import net.minecraft.item.Item;
import net.minecraft.util.IIcon;
import net.minecraft.world.ColorizerGrass;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import com.kami.creativetabs.MCreativeTabs;

public class Rgrass extends Block implements IGrowable
{
    private static final Logger logger = LogManager.getLogger();
    @SideOnly(Side.CLIENT)
    private IIcon field_149991_b;
    @SideOnly(Side.CLIENT)
    private IIcon field_149993_M;
    @SideOnly(Side.CLIENT)
    private IIcon field_149994_N;
    private static final String __OBFID = "CL_00000251";

    protected Rgrass()
    {
        super(Material.grass);
        this.setTickRandomly(true);
        this.setCreativeTab(MCreativeTabs.tabBlock);
    }

    /**
     * Gets the block's texture. Args: side, meta
     */
    @SideOnly(Side.CLIENT)
    public IIcon getIcon(int p_149691_1_, int p_149691_2_)
    {
        return p_149691_1_ == 1 ? this.field_149991_b : (p_149691_1_ == 0 ? MBlocks.Rdirt.getBlockTextureFromSide(p_149691_1_) : this.blockIcon);
    }

    /**
     * Ticks the block if it's been scheduled
     */
    public void updateTick(World p_149674_1_, int p_149674_2_, int p_149674_3_, int p_149674_4_, Random p_149674_5_)
    {
        if (!p_149674_1_.isRemote)
        {
            if (p_149674_1_.getBlockLightValue(p_149674_2_, p_149674_3_ + 1, p_149674_4_) < 4 && p_149674_1_.getBlockLightOpacity(p_149674_2_, p_149674_3_ + 1, p_149674_4_) > 2)
            {
                p_149674_1_.setBlock(p_149674_2_, p_149674_3_, p_149674_4_, MBlocks.Rdirt);
            }
            else if (p_149674_1_.getBlockLightValue(p_149674_2_, p_149674_3_ + 1, p_149674_4_) >= 9)
            {
                for (int l = 0; l < 4; ++l)
                {
                    int i1 = p_149674_2_ + p_149674_5_.nextInt(3) - 1;
                    int j1 = p_149674_3_ + p_149674_5_.nextInt(5) - 3;
                    int k1 = p_149674_4_ + p_149674_5_.nextInt(3) - 1;
                    Block block = p_149674_1_.getBlock(i1, j1 + 1, k1);

                    if (p_149674_1_.getBlock(i1, j1, k1) == MBlocks.Rdirt && p_149674_1_.getBlockMetadata(i1, j1, k1) == 0 && p_149674_1_.getBlockLightValue(i1, j1 + 1, k1) >= 4 && p_149674_1_.getBlockLightOpacity(i1, j1 + 1, k1) <= 2)
                    {
                        p_149674_1_.setBlock(i1, j1, k1, MBlocks.Rgrass);
                    }
                }
            }
        }
    }

    public Item getItemDropped(int p_149650_1_, Random p_149650_2_, int p_149650_3_)
    {
        return MBlocks.Rdirt.getItemDropped(0, p_149650_2_, p_149650_3_);
    }

    public boolean func_149851_a(World p_149851_1_, int p_149851_2_, int p_149851_3_, int p_149851_4_, boolean p_149851_5_)
    {
        return true;
    }

    public boolean func_149852_a(World p_149852_1_, Random p_149852_2_, int p_149852_3_, int p_149852_4_, int p_149852_5_)
    {
        return true;
    }

    @SideOnly(Side.CLIENT)
    public IIcon getIcon(IBlockAccess p_149673_1_, int p_149673_2_, int p_149673_3_, int p_149673_4_, int p_149673_5_)
    {
        if (p_149673_5_ == 1)
        {
            return this.field_149991_b;
        }
        else if (p_149673_5_ == 0)
        {
            return MBlocks.Rdirt.getBlockTextureFromSide(p_149673_5_);
        }
        else
        {
            Material material = p_149673_1_.getBlock(p_149673_2_, p_149673_3_ + 1, p_149673_4_).getMaterial();
            return material != Material.snow && material != Material.craftedSnow ? this.blockIcon : this.field_149993_M;
        }
    }

    @SideOnly(Side.CLIENT)
    public void registerBlockIcons(IIconRegister p_149651_1_)
    {
        this.blockIcon = p_149651_1_.registerIcon(this.getTextureName() + "_side");
        this.field_149991_b = p_149651_1_.registerIcon(this.getTextureName() + "_top");
        this.field_149993_M = p_149651_1_.registerIcon(this.getTextureName() + "_side_snowed");
        this.field_149994_N = p_149651_1_.registerIcon(this.getTextureName() + "_side_overlay");
    }

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

    /**
     * Returns the color this block should be rendered. Used by leaves.
     */
    @SideOnly(Side.CLIENT)
    public int getRenderColor(int p_149741_1_)
    {
        return this.getBlockColor();
    }

    /**
     * Returns a integer with hex for 0xrrggbb with this color multiplied against the blocks color. Note only called
     * when first determining what to render.
     */
    @SideOnly(Side.CLIENT)
    public int colorMultiplier(IBlockAccess p_149720_1_, int p_149720_2_, int p_149720_3_, int p_149720_4_)
    {
        int l = 0;
        int i1 = 0;
        int j1 = 0;

        for (int k1 = -1; k1 <= 1; ++k1)
        {
            for (int l1 = -1; l1 <= 1; ++l1)
            {
                int i2 = p_149720_1_.getBiomeGenForCoords(p_149720_2_ + l1, p_149720_4_ + k1).getBiomeGrassColor(p_149720_2_ + l1, p_149720_3_, p_149720_4_ + k1);
                l += (i2 & 16711680) >> 16;
                i1 += (i2 & 65280) >> 8;
                j1 += i2 & 255;
            }
        }

        return (l / 9 & 255) << 16 | (i1 / 9 & 255) << 8 | j1 / 9 & 255;
    }

    @SideOnly(Side.CLIENT)
    public static IIcon getIconSideOverlay()
    
        return MBlocks.Rgrass.field_149994_N;[color=blue][ <------error. cannot be resolved or is not a field.]
    }

    public void func_149853_b(World p_149853_1_, Random p_149853_2_, int p_149853_3_, int p_149853_4_, int p_149853_5_)
    {
        int l = 0;

        while (l < 128)
        {
            int i1 = p_149853_3_;
            int j1 = p_149853_4_ + 1;
            int k1 = p_149853_5_;
            int l1 = 0;

            while (true)
            {
                if (l1 < l / 16)
                {
                    i1 += p_149853_2_.nextInt(3) - 1;
                    j1 += (p_149853_2_.nextInt(3) - 1) * p_149853_2_.nextInt(3) / 2;
                    k1 += p_149853_2_.nextInt(3) - 1;

                    if (p_149853_1_.getBlock(i1, j1 - 1, k1) == MBlocks.Rgrass && !p_149853_1_.getBlock(i1, j1, k1).isNormalCube())
                    {
                        ++l1;
                        continue;
                    }
                }
                else if (p_149853_1_.getBlock(i1, j1, k1).getMaterial() == Material.air)
                {
                    if (p_149853_2_.nextInt( != 0)
                    {
                        if (Blocks.tallgrass.canBlockStay(p_149853_1_, i1, j1, k1))
                        {
                            p_149853_1_.setBlock(i1, j1, k1, Blocks.tallgrass, 1, 3);
                        }
                    }
                    else
                    {
                        p_149853_1_.getBiomeGenForCoords(i1, k1).plantFlower(p_149853_1_, p_149853_2_, i1, j1, k1);
                    }
                }

                ++l;
                break;
            }
        }
    }
}

sorry if i made any formating errors in this forum post. i'm new to forge forums.

Posted
  On 8/30/2015 at 2:57 PM, LordMastodon said:

Odd. Try initializing it at declaration.

um. here's the thing..

i actually don't really know that much about java. (minimal understanding) i learned how to code specific blocks and items from youtube. so i have no idea what you mean by that.

on a side note: i tried loading the game. it did not crashed. i placed the Reverse Grass block and for some odd reason it begun to transform into Reverse Dirt blocks.

Posted

Ahh. Well then I shall give you the same advice everyone like you gets. Go learn Java and THEN come back. If you don't know what "initalization" means then you've never coded in your life and should go do that.

Who are you? Why have you brought me here? And why are there so many PewDiePie fanboys surrounding meeeeeeeee....... *falls into pit and dies*.

 

Also this. Check it out.

width=700 height=200http://i.imgur.com/J4rrGt6.png[/img]

Posted

Also don't just copy the class wholesale.  That'll never work correctly and it will be impossible to debug unless you actually know what you're doing.

 

That said:

 

public static IIcon getIconSideOverlay()
   
        return MBlocks.Rgrass.field_149994_N;[ <------error. cannot be resolved or is not a field.]
    }

 

Did it occur to you to do this?

 

public static IIcon getIconSideOverlay()
   
        return this.field_149994_N;
    }

 

Magic!

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

Posted
  On 8/30/2015 at 4:35 PM, Draco18s said:

Also don't just copy the class wholesale.  That'll never work correctly and it will be impossible to debug unless you actually know what you're doing.

 

That said:

 

public static IIcon getIconSideOverlay()
   
        return MBlocks.Rgrass.field_149994_N;[ <------error. cannot be resolved or is not a field.]
    }

 

Did it occur to you to do this?

 

public static IIcon getIconSideOverlay()
   
        return this.field_149994_N;
    }

 

Magic!

tried that. getting this error:

this cannot be used in static context

Posted
  On 8/30/2015 at 1:50 PM, DarkKami101 said:

  Quote

Perhaps try looking at how the grass block works...

i did try to copy and paste the grass block code and rename things. but i keep getting this error..

 

package com.kami.blocks;

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.IGrowable;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.init.Blocks;
import net.minecraft.item.Item;
import net.minecraft.util.IIcon;
import net.minecraft.world.ColorizerGrass;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import com.kami.creativetabs.MCreativeTabs;

public class Rgrass extends Block implements IGrowable
{
    private static final Logger logger = LogManager.getLogger();
    @SideOnly(Side.CLIENT)
    private IIcon field_149991_b;
    @SideOnly(Side.CLIENT)
    private IIcon field_149993_M;
    @SideOnly(Side.CLIENT)
    private IIcon field_149994_N;
    private static final String __OBFID = "CL_00000251";

    protected Rgrass()
    {
        super(Material.grass);
        this.setTickRandomly(true);
        this.setCreativeTab(MCreativeTabs.tabBlock);
    }

    /**
     * Gets the block's texture. Args: side, meta
     */
    @SideOnly(Side.CLIENT)
    public IIcon getIcon(int p_149691_1_, int p_149691_2_)
    {
        return p_149691_1_ == 1 ? this.field_149991_b : (p_149691_1_ == 0 ? MBlocks.Rdirt.getBlockTextureFromSide(p_149691_1_) : this.blockIcon);
    }

    /**
     * Ticks the block if it's been scheduled
     */
    public void updateTick(World p_149674_1_, int p_149674_2_, int p_149674_3_, int p_149674_4_, Random p_149674_5_)
    {
        if (!p_149674_1_.isRemote)
        {
            if (p_149674_1_.getBlockLightValue(p_149674_2_, p_149674_3_ + 1, p_149674_4_) < 4 && p_149674_1_.getBlockLightOpacity(p_149674_2_, p_149674_3_ + 1, p_149674_4_) > 2)
            {
                p_149674_1_.setBlock(p_149674_2_, p_149674_3_, p_149674_4_, MBlocks.Rdirt);
            }
            else if (p_149674_1_.getBlockLightValue(p_149674_2_, p_149674_3_ + 1, p_149674_4_) >= 9)
            {
                for (int l = 0; l < 4; ++l)
                {
                    int i1 = p_149674_2_ + p_149674_5_.nextInt(3) - 1;
                    int j1 = p_149674_3_ + p_149674_5_.nextInt(5) - 3;
                    int k1 = p_149674_4_ + p_149674_5_.nextInt(3) - 1;
                    Block block = p_149674_1_.getBlock(i1, j1 + 1, k1);

                    if (p_149674_1_.getBlock(i1, j1, k1) == MBlocks.Rdirt && p_149674_1_.getBlockMetadata(i1, j1, k1) == 0 && p_149674_1_.getBlockLightValue(i1, j1 + 1, k1) >= 4 && p_149674_1_.getBlockLightOpacity(i1, j1 + 1, k1) <= 2)
                    {
                        p_149674_1_.setBlock(i1, j1, k1, MBlocks.Rgrass);
                    }
                }
            }
        }
    }

    public Item getItemDropped(int p_149650_1_, Random p_149650_2_, int p_149650_3_)
    {
        return MBlocks.Rdirt.getItemDropped(0, p_149650_2_, p_149650_3_);
    }

    public boolean func_149851_a(World p_149851_1_, int p_149851_2_, int p_149851_3_, int p_149851_4_, boolean p_149851_5_)
    {
        return true;
    }

    public boolean func_149852_a(World p_149852_1_, Random p_149852_2_, int p_149852_3_, int p_149852_4_, int p_149852_5_)
    {
        return true;
    }

    @SideOnly(Side.CLIENT)
    public IIcon getIcon(IBlockAccess p_149673_1_, int p_149673_2_, int p_149673_3_, int p_149673_4_, int p_149673_5_)
    {
        if (p_149673_5_ == 1)
        {
            return this.field_149991_b;
        }
        else if (p_149673_5_ == 0)
        {
            return MBlocks.Rdirt.getBlockTextureFromSide(p_149673_5_);
        }
        else
        {
            Material material = p_149673_1_.getBlock(p_149673_2_, p_149673_3_ + 1, p_149673_4_).getMaterial();
            return material != Material.snow && material != Material.craftedSnow ? this.blockIcon : this.field_149993_M;
        }
    }

    @SideOnly(Side.CLIENT)
    public void registerBlockIcons(IIconRegister p_149651_1_)
    {
        this.blockIcon = p_149651_1_.registerIcon(this.getTextureName() + "_side");
        this.field_149991_b = p_149651_1_.registerIcon(this.getTextureName() + "_top");
        this.field_149993_M = p_149651_1_.registerIcon(this.getTextureName() + "_side_snowed");
        this.field_149994_N = p_149651_1_.registerIcon(this.getTextureName() + "_side_overlay");
    }

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

    /**
     * Returns the color this block should be rendered. Used by leaves.
     */
    @SideOnly(Side.CLIENT)
    public int getRenderColor(int p_149741_1_)
    {
        return this.getBlockColor();
    }

    /**
     * Returns a integer with hex for 0xrrggbb with this color multiplied against the blocks color. Note only called
     * when first determining what to render.
     */
    @SideOnly(Side.CLIENT)
    public int colorMultiplier(IBlockAccess p_149720_1_, int p_149720_2_, int p_149720_3_, int p_149720_4_)
    {
        int l = 0;
        int i1 = 0;
        int j1 = 0;

        for (int k1 = -1; k1 <= 1; ++k1)
        {
            for (int l1 = -1; l1 <= 1; ++l1)
            {
                int i2 = p_149720_1_.getBiomeGenForCoords(p_149720_2_ + l1, p_149720_4_ + k1).getBiomeGrassColor(p_149720_2_ + l1, p_149720_3_, p_149720_4_ + k1);
                l += (i2 & 16711680) >> 16;
                i1 += (i2 & 65280) >> 8;
                j1 += i2 & 255;
            }
        }

        return (l / 9 & 255) << 16 | (i1 / 9 & 255) << 8 | j1 / 9 & 255;
    }

    @SideOnly(Side.CLIENT)
    public static IIcon getIconSideOverlay()
    
        return MBlocks.Rgrass.field_149994_N;[color=blue][ <------error. cannot be resolved or is not a field.]
    }

    public void func_149853_b(World p_149853_1_, Random p_149853_2_, int p_149853_3_, int p_149853_4_, int p_149853_5_)
    {
        int l = 0;

        while (l < 128)
        {
            int i1 = p_149853_3_;
            int j1 = p_149853_4_ + 1;
            int k1 = p_149853_5_;
            int l1 = 0;

            while (true)
            {
                if (l1 < l / 16)
                {
                    i1 += p_149853_2_.nextInt(3) - 1;
                    j1 += (p_149853_2_.nextInt(3) - 1) * p_149853_2_.nextInt(3) / 2;
                    k1 += p_149853_2_.nextInt(3) - 1;

                    if (p_149853_1_.getBlock(i1, j1 - 1, k1) == MBlocks.Rgrass && !p_149853_1_.getBlock(i1, j1, k1).isNormalCube())
                    {
                        ++l1;
                        continue;
                    }
                }
                else if (p_149853_1_.getBlock(i1, j1, k1).getMaterial() == Material.air)
                {
                    if (p_149853_2_.nextInt( != 0)
                    {
                        if (Blocks.tallgrass.canBlockStay(p_149853_1_, i1, j1, k1))
                        {
                            p_149853_1_.setBlock(i1, j1, k1, Blocks.tallgrass, 1, 3);
                        }
                    }
                    else
                    {
                        p_149853_1_.getBiomeGenForCoords(i1, k1).plantFlower(p_149853_1_, p_149853_2_, i1, j1, k1);
                    }
                }

                ++l;
                break;
            }
        }
    }
}

sorry if i made any formating errors in this forum post. i'm new to forge forums.

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    • Start by following the docs to get a workspace setup: https://docs.minecraftforge.net/en/latest/gettingstarted/ Then poke around some of the tutorials, https://www.mcjty.eu/docs/1.20/ used to be the goto, but not sure if there are any updates for regular forge or not, but if you've brushed up on Java, it will be enough to get you started. Poke around the Minecraft and Forge sources to see how things are done. Read the FAQ for information on how to post code/logs when you run into issues. Share as much info on issues you have as possible. Use github to host projects, chances of someone helping are higher when they can actually see all your code and/or build it themselves. And finally, keep it on the forums, don't direct message people with questions, most people do not provide personal support like that. Also keep in mind forums posts are not always immediately answered, if you're looking for a quicker response, you can always try the Minecraft Forge discord server.
    • Hello, I have a Forge Minecraft sever (I host it at g-portal.com) which has always worked fine and I had no problems, but today it doesn't wanna work anymore. Today I started the server and the status said online, but after a few seconds it said this: "Start failed". And then out of nowhere it restarted itself and the same thing happened again and again and now it's in an infinite loop where it just keeps failing and then restarts. Here's the download link for the server logs: https://www.mediafire.com/file/sq30dgoonjevib1/2025-07-06-1.log/file Does anyone know how to fix this? If yes I would really appreciate help. Best wishes, Gabs1107
    • I'm experiencing a critical issue on a dedicated Arch Linux server running the latest Forge for Minecraft 1.20.1. When a player exits a Nether portal (not enters, and not via /tp) or teleports into the End via portal, the server completely freezes for 1–10 minutes. During this time, all commands are unresponsive, and the game world essentially locks up. This is with watchdog disabled. Environment: OS: Arch Linux (latest packages) Java: OpenJDK 17 (up to date) Forge Version: Latest 1.20.1 (tested multiple versions from the past ~3 months) Mods: None (issue occurs on a clean install) Server Type: Proxmox VM with: 4 virtual cores 64 GB RAM (63 GB allocated via -Xmx and -Xms flags) Observed Behavior: Observed Behavior: The server freezes for 1–10 minutes when: Exiting a Nether portal (entering does not trigger the issue) Entering or exiting the End using a portal Teleporting using commands (e.g., /tp) works only for the Nether; teleporting to the End via command also causes a freeze The issue occurs anywhere in the world, not tied to specific coordinates or builds During the freeze: The server becomes completely unresponsive to all commands and player actions No crash reports, no errors, and no warnings are logged CPU usage remains under 50%, and RAM usage stays around 6–14 GB After 1–10 minutes, the server recovers automatically and resumes normal operation
    • Hey man, I just found this section in your code.  Try to do this: { "parent": "minecraft:item/generated", "textures": { "layer0": "testmod:item/alexandrite" } } This means your png should be named alexandrite.png. Hope it helps  
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