I have a block with multiple states, when i change the state of the block and it is rendered as an item by Minecraft, either as an entity or in gui or etc. i get the null model and texture. I know that there is something about register blocks / items with subtypes to get their models to render correctly. Could someone point me to some source code that shows how to register a block that has subtypes so that the Item Models register correctly as well? 

Or perhaps i'm registering my blocks right and the blockstate / item model json is wrong?

Regardless some source code that highlights doing the above will let me debug and find out for myself.

 

Thanks in advance.

@diesieben07 The source code can be found here https://github.com/kitsushadow/forgecraft/tree/master/1.11/src/main

 

Specifically related to the IngotBall class and the ironball block.

 

Thanks for the help

 

17 minutes ago, diesieben07 said:

Which Block are we talking about?

https://github.com/kitsushadow/forgecraft/blob/master/1.11/src/main/java/nmd/primal/forgecraft/blocks/IngotBall.java

 

@diesieben07

Edited February 13, 20178 yr by kitsushadow

Does that mean I need a basic item that does nothing other than be the subtype place holder item???

So a furnaceLit and furnaceOff would need two separate items?

Just want to make sure I understand right.

@diesieben07
I'm looking through the source code, only thing I see is that I need to have the subtypes as a list and call getSubBlocks in the block class.
I found that in the Block class BlockColored

I know this is something relatively simple but I could really use a mod source code example cuz i'm having difficulty following your suggestions.

 

    @SideOnly(Side.CLIENT)
    public void getSubBlocks(Item itemIn, CreativeTabs tab, NonNullList<ItemStack> list)
    {
        for (EnumDyeColor enumdyecolor : EnumDyeColor.values())
        {
            list.add(new ItemStack(itemIn, 1, enumdyecolor.getMetadata()));
        }
    }

 

Ahh! So should my IngotBall class which is a block extend ItemBlock instead of Block?

 

Or do I need both the Block class and an ItemBlock Class?

thanks

Edited February 13, 20178 yr by kitsushadow

 

Just now, diesieben07 said:

You need both. Block handles when placed in the world, Item handles when in inventories.

Got it, thanks for your help.

I'm looking at source code examples and getting lost how to register the the block and item now.

How and where do i register the ItemBlock i've made?

Same way you register anything else.

ItemBlock itemBl = new ItemBlock(yourBlock).setRegistryName(yourBlock.getRegistryName());
GameRegistry.Register(itemBl);

Or via the registry events.

getting a null pointer exception with that

Error:

net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Kitsu's Forgecraft (forgecraft)
Caused by: java.lang.NullPointerException
	at net.minecraftforge.fml.common.registry.GameData$ItemCallbacks.onAdd(GameData.java:367)
	at net.minecraftforge.fml.common.registry.GameData$ItemCallbacks.onAdd(GameData.java:356)
	at net.minecraftforge.fml.common.registry.FMLControlledNamespacedRegistry.addObjectRaw(FMLControlledNamespacedRegistry.java:601)
	at net.minecraftforge.fml.common.registry.FMLControlledNamespacedRegistry.add(FMLControlledNamespacedRegistry.java:499)
	at net.minecraftforge.fml.common.registry.FMLControlledNamespacedRegistry.register(FMLControlledNamespacedRegistry.java:852)
	at net.minecraftforge.fml.common.registry.GameData.register_impl(GameData.java:225)
	at net.minecraftforge.fml.common.registry.GameRegistry.register(GameRegistry.java:155)
	at nmd.primal.forgecraft.init.ModItems.register(ModItems.java:45)
	at nmd.primal.forgecraft.ForgeCraft.preInit(ForgeCraft.java:47)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)

Registry Class:

public class ModItems {

    public static Item pistonbellows;
    public static Item softcrucible;
    public static Item stonetongs;
    public static ItemBlock ironingotball;
    //public static Item forgingmanual;

    public static void init() {
        OBJLoader.INSTANCE.addDomain(ModInfo.MOD_ID);
        pistonbellows = new ItemBellowsHandle();
        softcrucible = new ItemSoftCrucible();
        stonetongs = new ItemStoneTongs("stonetongs");
        ironingotball = new ItemBlockIngotBall(ModBlocks.ironball, "ironingotball");
        //forgingmanual = new ItemForgingManual();
    }

    public static void register() {
        GameRegistry.register(pistonbellows);
        GameRegistry.register(softcrucible);
        GameRegistry.register(stonetongs);
        GameRegistry.register(ironingotball);
        //GameRegistry.register(forgingmanual);
    }

    public static void registerRenders() {
        registerRender(pistonbellows);
        registerRender(softcrucible);
        registerRenderItemBlock(ironingotball);
        //registerRender(forgingmanual);
    }

    public static void registerCustomRenders(){
        ModelBakery.registerItemVariants(ModItems.stonetongs, ModItems.stonetongs.getRegistryName(),
                new ResourceLocation(ModInfo.MOD_ID, "stonetongs"),
                new ResourceLocation(ModInfo.MOD_ID, "stonetongs_default"),
                new ResourceLocation(ModInfo.MOD_ID, "stonetongs_emptyhot"),
                new ResourceLocation(ModInfo.MOD_ID, "stonetongs_emptyhotcracked"),
                new ResourceLocation(ModInfo.MOD_ID, "stonetongs_hotiron"),
                new ResourceLocation(ModInfo.MOD_ID, "stonetongs_hotironcooked"),
                new ResourceLocation(ModInfo.MOD_ID, "stonetongs_hotironfailed")
                );
        ModelLoader.setCustomMeshDefinition(ModItems.stonetongs, new ItemMeshDefinition() {

            @Override
            public ModelResourceLocation getModelLocation(ItemStack stack) {
                if (stack.hasTagCompound()) {
                  if (stack.getTagCompound().getInteger("type") == 0 ){
                    return new ModelResourceLocation(stack.getItem().getRegistryName() + "_default", "inventory");
                  }
                  else if (stack.getTagCompound().getInteger("type") == 1 ) {
                      return new ModelResourceLocation(stack.getItem().getRegistryName() + "_emptyhot", "inventory");
                  }
                  else if (stack.getTagCompound().getInteger("type") == 2 ) {
                      return new ModelResourceLocation(stack.getItem().getRegistryName() + "_emptyhotcracked", "inventory");
                  }
                  else if (stack.getTagCompound().getInteger("type") == 3 ) {
                      return new ModelResourceLocation(stack.getItem().getRegistryName() + "_hotiron", "inventory");
                  }
                  else if (stack.getTagCompound().getInteger("type") == 4 ) {
                      return new ModelResourceLocation(stack.getItem().getRegistryName() + "_hotironcooked", "inventory");
                  }
                  else if (stack.getTagCompound().getInteger("type") == 5 ) {
                      return new ModelResourceLocation(stack.getItem().getRegistryName() + "_hotironfailed", "inventory");
                  }
                  else return new ModelResourceLocation(stack.getItem().getRegistryName(), "inventory");
                }
                return new ModelResourceLocation(stack.getItem().getRegistryName(), "inventory");
            }
        });
    }

    private static void registerRender(Item item) {
        Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(item, 0, new ModelResourceLocation(item.getRegistryName(), "inventory"));
    }

    private static void registerRenderItemBlock(ItemBlock item){
        Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(item, 0, new ModelResourceLocation(item.getRegistryName(), "inventory"));
    }

    /*public static void registerRender(Item item, int meta, String fileName) {
        ModelLoader.setCustomModelResourceLocation(item, meta, new ModelResourceLocation(new ResourceLocation(fileName), "inventory"));

    }

    public static void registerRender(Item item, int meta, String fileName) {
        Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(item, meta, new ModelResourceLocation(fileName, "inventory"));
    }*/



}

 

No you must set a registry name for the item ironball as Draco18s told you.

Thank for the help guys getting a new error now

Seems like the Block Registry Name and the ItemBlock registry name are conflicting?

net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Kitsu's Forgecraft (forgecraft)
Caused by: java.lang.IllegalStateException: Attempted to set registry name with existing registry name! New: forgecraft:ironball Old: forgecraft:ironball
	at net.minecraftforge.fml.common.registry.IForgeRegistryEntry$Impl.setRegistryName(IForgeRegistryEntry.java:73)
	at net.minecraftforge.fml.common.registry.IForgeRegistryEntry$Impl.setRegistryName(IForgeRegistryEntry.java:90)
	at nmd.primal.forgecraft.init.ModItems.init(ModItems.java:40)
	at nmd.primal.forgecraft.ForgeCraft.preInit(ForgeCraft.java:48)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)

 

 

New Registry Code
 

    public static Item pistonbellows;
    public static Item softcrucible;
    public static Item stonetongs;
    public static ItemBlock ironingotball;
    //public static Item forgingmanual;

    public static void init() {
        OBJLoader.INSTANCE.addDomain(ModInfo.MOD_ID);
        pistonbellows = new ItemBellowsHandle();
        softcrucible = new ItemSoftCrucible();
        stonetongs = new ItemStoneTongs("stonetongs");
        ironingotball = new ItemBlockIngotBall(ModBlocks.ironball.setRegistryName(ModBlocks.ironball.getRegistryName()));
        //forgingmanual = new ItemForgingManual();
    }

    public static void register() {
        GameRegistry.register(pistonbellows);
        GameRegistry.register(softcrucible);
        GameRegistry.register(stonetongs);
        GameRegistry.register(ironingotball);
        //GameRegistry.register(forgingmanual);
    }

 

 

 

Edited February 13, 20178 yr by kitsushadow

I believe you are registering a  normal ItemBlock stil in your ModBlocks class or where ever you register your Blocks and there ItemBlocks.

20 minutes ago, Animefan8888 said:

I believe you are registering a  normal ItemBlock stil in your ModBlocks class or where ever you register your Blocks and there ItemBlocks.

Can u say that again? I am registering my ItemBlock in my Item Class. Is that wrong?

No that is not wrong, could you post where you do the rest of your ItemBlocks.

I dont have any other ItemBlocks, this is my first ItemBlock
 

https://github.com/kitsushadow/forgecraft/blob/master/1.11/src/main/java/nmd/primal/forgecraft/init/ModItems.java

This is your registerBlock Method

private static void registerBlock(Block block) {
        GameRegistry.register(block);
        ItemBlock item = new ItemBlock(block);
        item.setRegistryName(block.getRegistryName());
        GameRegistry.register(item);
}

Which also registers an ItemBlock for the block you have a custom one so you cannot do that.

Ok, so what do i do about registering the subTypes? All i see in the UI is the default state of the item.

@Animefan8888

I think i see what u mean i updated my Block class but getting a null pointer again

 

package nmd.primal.forgecraft.init;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.block.model.ModelResourceLocation;
import net.minecraft.item.Item;
import net.minecraft.item.ItemBlock;
import net.minecraftforge.fml.common.registry.GameRegistry;
import nmd.primal.forgecraft.blocks.*;

/**
 * Created by kitsu on 11/26/2016.
 */
public class ModBlocks {

    public static Block firebox;
    public static Block bloomery;
    public static Block pistonbellowsoak;
    public static Block pistonbellowsjungle;
    public static Block pistonbellowsbirch;
    public static Block pistonbellowsspruce;
    public static Block pistonbellowsdarkoak;
    public static Block pistonbellowsacacia;
    public static Block emptycrucible;
    public static Block emptycruciblehot;
    public static Block emptycruciblecracked;
    public static Block emptycruciblecrackedhot;

    public static Block rawironcrucible;
    public static Block hotironcrucible;
    public static Block hotcookedironcrucible;
    public static Block coolironcrucible;
    public static Block failedironcrucible;
    public static Block failedironcruciblehot;

    public static Block ironball;
    public static ItemBlock ironballitem;


    public static void init() {

        firebox = new Forge(Material.ROCK);

        bloomery = new Bloomery(Material.ROCK, "bloomery");

        pistonbellowsoak = new PistonBellows(Material.WOOD, "pistonbellowsoak");
        pistonbellowsjungle = new PistonBellows(Material.WOOD, "pistonbellowsjungle");
        pistonbellowsbirch = new PistonBellows(Material.WOOD, "pistonbellowsbirch");
        pistonbellowsspruce = new PistonBellows(Material.WOOD, "pistonbellowsspruce");
        pistonbellowsdarkoak = new PistonBellows(Material.WOOD, "pistonbellowsdarkoak");
        pistonbellowsacacia = new PistonBellows(Material.WOOD, "pistonbellowsacacia");

        emptycrucible = new Crucible(Material.ROCK, "emptycrucible");
        emptycruciblehot = new CrucibleHot(Material.ROCK, "emptycruciblehot");
        emptycruciblecracked = new Crucible(Material.ROCK, "emptycruciblecracked");
        emptycruciblecrackedhot = new CrucibleHot(Material.ROCK, "emptycruciblecrackedhot");

        rawironcrucible = new Crucible(Material.ROCK, "rawironcrucible");
        hotironcrucible = new CrucibleHot(Material.ROCK, "hotironcrucible");
        hotcookedironcrucible = new CrucibleHot(Material.ROCK, "hotcookedironcrucible");
        coolironcrucible = new Crucible(Material.ROCK, "coolironcrucible");
        failedironcrucible = new Crucible(Material.ROCK, "failedironcrucible");
        failedironcruciblehot = new CrucibleHot(Material.ROCK, "failedironcruciblehot");

        ironball = new IngotBall(Material.IRON, "ironball", 5.0F);

    }

    public static void register() {
        registerBlock(firebox);
        registerBlock(bloomery);

        registerBlock(pistonbellowsoak);
        registerBlock(pistonbellowsjungle);
        registerBlock(pistonbellowsbirch);
        registerBlock(pistonbellowsspruce);
        registerBlock(pistonbellowsdarkoak);
        registerBlock(pistonbellowsacacia);

        registerBlock(emptycrucible);
        registerBlock(emptycruciblehot);
        registerBlock(emptycruciblecracked);
        registerBlock(emptycruciblecrackedhot);

        registerBlock(rawironcrucible);
        registerBlock(hotironcrucible);
        registerBlock(hotcookedironcrucible);
        registerBlock(coolironcrucible);
        registerBlock(failedironcrucible);
        registerBlock(failedironcruciblehot);

        registerBlockSubType(ironball, ironballitem);
    }

    public static void registerRenders() {
        registerRender(firebox);
        registerRender(pistonbellowsoak);
        registerRender(pistonbellowsjungle);
        registerRender(pistonbellowsbirch);
        registerRender(pistonbellowsspruce);
        registerRender(pistonbellowsdarkoak);
        registerRender(pistonbellowsacacia);
        registerRender(bloomery);
        registerRender(emptycrucible);
        registerRender(emptycruciblehot);
        registerRender(emptycruciblecracked);
        registerRender(emptycruciblecrackedhot);

        registerRender(rawironcrucible);
        registerRender(hotironcrucible);
        registerRender(hotcookedironcrucible);
        registerRender(coolironcrucible);
        registerRender(failedironcrucible);
        registerRender(failedironcruciblehot);

        registerRender(ironball);

    }

    private static void registerBlock(Block block) {
        GameRegistry.register(block);
        ItemBlock item = new ItemBlock(block);
        item.setRegistryName(block.getRegistryName());
        GameRegistry.register(item);
    }

    private static void registerBlockSubType(Block block, ItemBlock itemBlock){
        GameRegistry.register(block);
        ItemBlock item = itemBlock;
        item.setRegistryName(block.getRegistryName());
        GameRegistry.register(item);
    }

    private static void registerRender(Block block) {
        Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(Item.getItemFromBlock(block), 0, new ModelResourceLocation(block.getRegistryName(), "inventory"));
    }
}

 

Quote

but getting a null pointer again

Where?

@Draco18s  sorry thought i had included it

 

Caused by: java.lang.NullPointerException
	at nmd.primal.forgecraft.init.ModBlocks.registerBlockSubType(ModBlocks.java:131)
	at nmd.primal.forgecraft.init.ModBlocks.register(ModBlocks.java:93)
	at nmd.primal.forgecraft.ForgeCraft.preInit(ForgeCraft.java:47)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)

 

Line 131    

item.setRegistryName(block.getRegistryName());

 

 

Line 93 

registerBlockSubType(ironball, ironballitem);

Edited February 13, 20178 yr by kitsushadow

You never set ironballitem to anything.

Ok, so now i was able to launch successfully and no registration warnings in the console so thats good but I see only the defaults state of the Item in the UI

 

https://github.com/kitsushadow/forgecraft/blob/master/1.11/src/main/java/nmd/primal/forgecraft/init/ModBlocks.java

Edited February 13, 20178 yr by kitsushadow

Is it just the rendering at this point???

    private static void registerRender(Block block) {
        Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(Item.getItemFromBlock(block), 0, new ModelResourceLocation(block.getRegistryName(), "inventory"));
    }
}

 

That probably is not enough to register the itemSubtypes
but
if that was the case wouldn't the itemSubtype at least show up in the creative tab?

Edited February 14, 20178 yr by kitsushadow

Don't use the model mesher, use ModelLoader.setCustomModelResourceLocation