Changing what drops when i break a block doesn't work (1.8).

[Wooden_Brick]

I have been trying to make it that my ore would drop a gem, but when i start the client in eclipse, it instantly closes.

 

The code that i used:

 

public Item getItemDropped(int meta, Random rand, int fortune)

    {

        return TutorialItems.gem_1;

    }

 

TutorialItems is my class that has my items, gem_1 is the item.

Thank you in advance.

[Ernio]

Not enough code. Need Main class and proxies most likely (block and item init).

 

Use @Override annotation.

 

If the client crashes right away (during launch) it's not fault of this particular method. Error is elsewhere.

[Wooden_Brick]

I have all of those classes, but your right for saying there problems not there, once i commented out everything, the game still wouldn't start. The error message:

b---- Minecraft Crash Report ----

// Oops.

 

Time: 6/3/15 4:17 PM

Description: Initializing game

 

http://www.minecraftforge.net/forum/Themes/default/images/bbc/spoiler.gifjava.lang.NullPointerException: Initializing game

at net.minecraft.item.crafting.CraftingManager.addRecipe(CraftingManager.java:270)

at net.minecraftforge.fml.common.registry.GameRegistry.addShapedRecipe(GameRegistry.java:236)

at net.minecraftforge.fml.common.registry.GameRegistry.addRecipe(GameRegistry.java:231)

at com.Babuska.init.TutorialBlocks.recipe(TutorialBlocks.java:63)

at com.Babuska.TutorialMod.preInit(TutorialMod.java:25)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:518)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)

at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)

at com.google.common.eventbus.EventBus.post(EventBus.java:275)

at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:208)

at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:187)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)

at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)

at com.google.common.eventbus.EventBus.post(EventBus.java:275)

at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:118)

at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:514)

at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:243)

at net.minecraft.client.Minecraft.startGame(Minecraft.java:447)

at net.minecraft.client.Minecraft.run(Minecraft.java:356)

at net.minecraft.client.main.Main.main(Main.java:117)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source)

at GradleStart.main(Unknown Source)

 

Hope the detailed walkthrow isn't needed. what i did before trying to change the block drops was make a crafting recipe, and it perfectly worked. after that i tried to change what drops when you break a block. And thats where it went all wrong, now even if i comment out everything i did after the recipe, it still wont launch. Heres the code that the recipe is in:

 

http://www.minecraftforge.net/forum/Themes/default/images/bbc/spoiler.gifpackage com.Babuska.init;

 

import net.minecraft.block.Block;

import net.minecraft.block.material.MapColor;

import net.minecraft.block.material.Material;

import net.minecraft.client.Minecraft;

import net.minecraft.client.resources.model.ModelResourceLocation;

import net.minecraft.init.Items;

import net.minecraft.item.Item;

import net.minecraft.item.ItemStack;

import net.minecraftforge.fml.common.registry.GameRegistry;

 

import com.Babuska.References;

import com.Babuska.blocks.BlockTest;

import com.Babuska.material.MaterialTest;

 

public class TutorialBlocks {

 

 

public static Block test_1;

public static Block test_block;

public static Block test_2;

public static Block test_3;

 

public static void init() {

 

test_1 = new BlockTest(Material.iron).setUnlocalizedName("test_1");

test_block = new BlockTest(Material.iron).setUnlocalizedName("test_block");

test_2 = new BlockTest(Material.iron).setUnlocalizedName("test_2");

test_3 = new BlockTest(Material.iron).setUnlocalizedName("test_3");

}

 

 

public static void register() {

 

GameRegistry.registerBlock(test_1, test_1.getUnlocalizedName().substring(5));

GameRegistry.registerBlock(test_block, test_block.getUnlocalizedName().substring(5));

GameRegistry.registerBlock(test_2, test_2.getUnlocalizedName().substring(5));

GameRegistry.registerBlock(test_3, test_3.getUnlocalizedName().substring(5));

}

 

 

public static void registerRenders()

{

 

registerRender(test_1);

registerRender(test_block);

registerRender(test_2);

registerRender(test_3);

}

 

public static void registerRender(Block block)

{

Item item = Item.getItemFromBlock(block);

Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(item, 0, new ModelResourceLocation(References.MOD_ID + ":" + item.getUnlocalizedName().substring(5), "inventory"));

 

}

 

 

 

public static void recipe()

{

GameRegistry.addRecipe(new ItemStack(test_2), new Object[]{"RRR",

                                                      " S ",

                                                      " S ", 'R', TutorialItems.gem_1, 'S', Items.stick});

}

 

 

 

 

 

}

[TheGreyGhost]

Hi

 

You might find these links helpful to track down your bug

http://www.terryanderson.ca/debugging/run.html

http://www.vogella.com/tutorials/EclipseDebugging/article.html

 

In this case -

  at com.Babuska.init.TutorialBlocks.recipe(TutorialBlocks.java:63)

your items or blocks probably aren't initialised which you call addRecipe (they are still null)

 

-TGG

 

[Wooden_Brick]

After some testing, i found that when i try to craft some items it instantly crashes. do i have to do something more to define it?

for instance if i try to craft or use in crafting gem_1, its doesnt even load minecraft, if i use test_item it crashes when i try and craft it, and when i craft my test_2 item it for some reason works? am i missing something complicated or very obvious?

 

[Wooden_Brick]

package com.Babuska;

 

import net.minecraftforge.fml.common.Mod;

import net.minecraftforge.fml.common.Mod.EventHandler;

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.registry.GameRegistry;

 

import com.Babuska.init.TutorialBlocks;

import com.Babuska.init.TutorialItems;

import com.Babuska.proxy.CommonProxy;

 

 

@Mod(modid = References.MOD_ID, name = References.MOD_NAME, version = References.VERSION)

public class TutorialMod {

@SidedProxy(clientSide = References.CLIENT_PROXY_CLASS, serverSide = References.SERVER_PROXY_CLASS)

public static CommonProxy proxy;

 

@EventHandler

public void preInit(FMLPreInitializationEvent event){

TutorialBlocks.init();

TutorialBlocks.register();

    TutorialBlocks.recipe();

TutorialItems.init();

TutorialItems.register();

}

@EventHandler

public void init(FMLInitializationEvent event){

proxy.registerRenders();

 

}

 

@EventHandler

public void postInit(FMLPostInitializationEvent event){

 

}

 

 

 

}

 

[Wooden_Brick]

Thank you now all i need to do is figure out why the block drops dont work. i used a code that was for 1.7.10. Does this still work?

 

package com.Babuska.blocks;

 

import java.util.Random;

 

import net.minecraft.block.Block;

import net.minecraft.block.material.Material;

import net.minecraft.block.state.IBlockState;

import net.minecraft.item.Item;

 

import com.Babuska.init.TutorialItems;

 

public class BlockTest extends Block {

 

public BlockTest(Material materialIn) {

super(materialIn);

this.setHardness(2.0F);

this.setHarvestLevel("pickaxe", 1); //dmd 3, iron 2, stone 1, wood 0,

}

 

 

 

//public Item getItemDropped(int meta, Random rand, int fortune)

    //{

    //    return TutorialItems.gem_1;

    //}

 

//@Override

//public int quantityDropped(Random rand){

// return 6;

//}

}

[Wooden_Brick]

Wow, as always im impressed how much these little things like order mean :DD thanks a lot to people who helped

[Wooden_Brick]

Everything works, just the block doesnt drop what i want, the quantity works thow

[Wooden_Brick]

sorry, what is my IDE ?

 

[Wooden_Brick]

If i use eclipse, how do i use it with the override?

[Wooden_Brick]

It works thank you One last thing, and then i guess ill go away for like 2 weeks, so people get a break from my questions The pickaxe that i made has no texture in game, i guess the only thing diferent with it is that i used in my items:

 

public class TutorialItems {

 

public static Item test_item;

public static Item gem_1;

public static Item gem_pickaxe;

 

public static final Item.ToolMaterial gemToolMaterial = EnumHelper.addToolMaterial("gemToolMaterial", 2, 512, 7.0F, 2.0F, 10);

 

public static void init(){

test_item = new Item().setUnlocalizedName("test_item");

gem_1 = new Item().setUnlocalizedName("gem_1");

gem_pickaxe = new ItemGemPickaxe(gemToolMaterial).setUnlocalizedName("gem_pickaxe");

 

}

 

public static void register() {

GameRegistry.registerItem(test_item, test_item.getUnlocalizedName().substring(5)); //"tile.test_item"

GameRegistry.registerItem(gem_1, gem_1.getUnlocalizedName().substring(5));

GameRegistry.registerItem(gem_pickaxe, gem_pickaxe.getUnlocalizedName().substring(5));

 

}

 

public static void registerRenders() {

 

registerRender(test_item);

registerRender(gem_1);

registerRender(gem_pickaxe);

}

 

 

public static void registerRender(Item item) {

 

Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(item, 0, new ModelResourceLocation(References.MOD_ID + ":" + item.getUnlocalizedName().substring(5), "inventory"));

 

}

 

}

 

and in the actual ItemGemPickaxe class:

 

import net.minecraft.item.ItemPickaxe;

 

public class ItemGemPickaxe extends ItemPickaxe {

 

public ItemGemPickaxe(ToolMaterial material) {

super(material);

 

}

}

 

i have the .json.