[[1.15.2] Items and blocks don't register correctly]

Ah ok it works now, but why shouldn't I use the ItemfromBlock method?

[[1.15.2] Items and blocks don't register correctly]

Yes it is this class:

	public static BlockItem ItemfromBlock(Block p) {
		return (BlockItem) new BlockItem(p, (new Item.Properties()).group(ItemGroup.BUILDING_BLOCKS)).setRegistryName(p.getRegistryName());
	}
}

 

[[1.15.2] Items and blocks don't register correctly]

Because all three blocks are the same except in name I made the following class:

Spoiler

public class BasicOre {

    public static Block ore(String name){
        return new Block(Block.Properties.create(Material.ROCK)
                .lightValue(0)
                .hardnessAndResistance(3,15)
                .harvestLevel(1)
                .harvestTool(net.minecraftforge.common.ToolType.PICKAXE)).setRegistryName(name);
    }
}

 

 

[[1.15.2] Items and blocks don't register correctly]

I wanted to try the DeferredRegister to register items and blocks, but I always get this error:

 

Quote

 Exception caught during firing event: Attempted to set registry name with existing registry name! New: opus:sulfureore Old: opus:sulfureore

 

 

RegistryHandler code :

Spoiler

	//Register
	private static final DeferredRegister<Item> ITEMS = new DeferredRegister<>(ForgeRegistries.ITEMS, MODID);
    private static final DeferredRegister<Block> BLOCKS = new DeferredRegister<>(ForgeRegistries.BLOCKS, MODID);


	//Register Blocks
	public static final RegistryObject<Block> SULFUREORE_BLOCK = BLOCKS.register("sulfureore",() -> new BasicOre().ore("sulfureore"));
	public static final RegistryObject<Block> CINNABARORE_BLOCK = BLOCKS.register("cinnabarore",() -> new BasicOre().ore("cinnabarore"));
	public static final RegistryObject<Block> SALTORE_BLOCK = BLOCKS.register("saltore",() -> new BasicOre().ore("saltore"));

	//Register Items
	public static final RegistryObject<Item> SULFUREORE_ITEM = ITEMS.register("sulfureore",() -> new ItemHelper().ItemfromBlock(new BasicOre().ore("sulfureore")));
	public static final RegistryObject<Item> CINNABARORE_ITEM = ITEMS.register("cinnabarore",() -> new ItemHelper().ItemfromBlock(new BasicOre().ore("cinnabarore")));
	public static final RegistryObject<Item> SALTORE_ITEM = ITEMS.register("saltore",() -> new ItemHelper().ItemfromBlock(new BasicOre().ore("saltore")));

	public static void registerall(){

		BLOCKS.register(FMLJavaModLoadingContext.get().getModEventBus());
		ITEMS.register(FMLJavaModLoadingContext.get().getModEventBus());
    }

 

Main mod class:

Spoiler

public Opus() {
        // Register the setup method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::setup);
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::doClientStuff);

        RegistryHandler.registerall();

        // Register ourselves for server and other game events we are interested in
        MinecraftForge.EVENT_BUS.register(this);


}

 

 

There are blocks with the same name as items, but this should be fine shouldn't it?

How does this error happen and how would I fix it?

Thanks in advance!

[[1.15.2] Generate ore next to lava]

I want to generate ore only next to underground lava lakes, but I don't know how.

I have come up with two  approaches so far.

1. When a lava lake is generated the ore is placed on nearby stone.
2. The game generates the ore like normal, but checks if lava is nearby before placing the ore.

 

Which  approach is the better or is there a different way to do this?

 

 

[[1.14.2] [Solved] Having trouble with making custom block drop when mined]

Just override the getDrops method and add the item to the drops Itemstack.

[[1.12.2] How to get a player from UUID if the player is offline]

Thanks it works.

[[1.13.2] How to check right click on the block by item in mainhand?]

Can you be more specific?

[[1.13.2] Basic Mod Guides]

For a custom capability you need to have an Interface, Default implementation, Storage, Provider and a Factory.

If you want to attach the capability to a player you will need to use an attachcapability event and register it in your main mod class.

If your Player is teleported or respawns you will also have to manage your capability so you dont lose data.

 

Here is an example:

https://github.com/SALTStation/mod/tree/master/src/main/java/com/SaltStation/Main/Capabilities/FatigueCapability

https://github.com/SALTStation/mod/blob/master/src/main/java/com/SaltStation/Main/handlers/events/CapabilityHandeler.java

 

Ignore wrong grammar...

 

[[1.12.2] How to get a player from UUID if the player is offline]

Hello everyone,

I want to get an EntityPlayerMP object by using a UUID but my current method only works if the player in question is online.

Is there a way to get a list of all Players who where on the server at some point?

 

Current Method:

Spoiler

MinecraftServer server = FMLCommonHandler.instance().getMinecraftServerInstance();
player = server.getPlayerList().getPlayerByUUID(id);

 

I want to get the statistcmanagerserver from the player by the way.

[[1.13.2] Basic Mod Guides]

Youtube tutorials are usually not reliable as many creators take shortcuts which are not very appreciated on this Forum.

An amazing source for information in addition to the ones named by GloriousAlpaca are Minecraft classes and methods themselves and other mods which have an open Github.

I think key bindings are saved in the options.txt which you could edit.

I would not recommend changing the default Ui as changing minecraft code may make other mods incompatible.

Opening a second inventory or a second hotbar is possible by drawing a ui for the hotbar and having a custom container and gui for the inventory.

If you want to save data to the player you need to make your own capability which you attach to the player.

[Cauldron as a Tank?]

I think you need to have a TileEntity and use IFluidHandler.

If the amount of fluid changes you can instruct the TileEntity to change the blockstate of the cauldron.

[[1.12.2] Getting an Itemstack from entityplayer]

Hello everyone.

After the player uses a Gui a value in the NBT of the held item is supposed to change, but the hand always returns null.

EnumHand hand = mc.player.getActiveHand();
mc.player.getHeldItem(hand).getTagCompound().setString("spell","test");

 

[[1.12.2] Item use animations]

Working as intended!

[[1.12.2] Item use animations]

I just hold rightclick in this video.

The upload here failed so here is a link to google drive:

https://drive.google.com/open?id=1Xfw6LoKfH6m_OqXlkFFqhSyXxR-KoHpT

 

Code:

Spoiler

 

 

public class Catalyst extends ItemBase{


    public Catalyst(String name) {
        super(name);
    }

    @Override
    public int getMaxItemUseDuration(ItemStack stack)
    {
        return 7000;
    }

    @Override
    public EnumAction getItemUseAction(ItemStack stack)
    {
        return EnumAction.BOW;
    }
}

 

 

[[1.12.2] Item use animations]

I copied the methods from the ItemBow class, but the animation is kind of not working.

You can see the item twitching in first person, but no animation from any other perspective.

Am I missing something?

Spoiler

    @Override
    public int getMaxItemUseDuration(ItemStack stack)
    {
        return 7000;
    }

    @Override
    public EnumAction getItemUseAction(ItemStack stack)
    {
        return EnumAction.BOW;
    }

 

 

[[1.12.2] Item use animations]

How do I make an Item use an animation from a minecraft item like a bow for example?

[[1.12.2] What's the best way to make a crafting recipe that just changes NBT?]

No you only have one item but depending on the parameters it can have different damage/effects/whateveryouwant

Sword(String name, int material, String infusion)

in your ModItem class:

 

FIRESWORD_LEVEL_TWO = new Sword(firesword_level_two,2, fire)

 

[[1.12.2] What's the best way to make a crafting recipe that just changes NBT?]

You could add additional parameters to the constructor of your sword class.

 

 

[[1.12.2] Player Capability null pointer exception]

Hello everyone.

The problem I have is that every time I try accessing my capability I get a null pointer exception.

Do I have to send packets to the client at the start of the game to prevent this?

Because I thought you only need packets to update information.

 

Default Implementation:

Spoiler

public class Fatigue implements IFatigue {

    private double fatigue = 0;
    private double limit = 20;
    private double regen = 0;

    @Override
    public void setFatigue(double points) {
        this.fatigue=points;

    }

    public void setLimit(double points) {
        this.limit=points;

    }

    public void setRegen(double points) {
        this.regen=points;

    }

    @Override
    public void add(double points) {
        this.fatigue+=points;

    }

    @Override
    public void remove(double points) {
        this.fatigue-=points;

    }

    @Override
    public double getFatigue() {
        return this.fatigue ;
    }

    @Override
    public double getLimit() {
        return this.limit ;
    }

    @Override
    public double getRegen() {
        return this.regen ;
    }
}

 

Storage:

Spoiler

public class FatigueStorage implements Capability.IStorage<IFatigue> {

    @Override
    public NBTBase writeNBT(Capability<IFatigue> capability, IFatigue instance, EnumFacing side) {

        NBTTagCompound tag = new NBTTagCompound();
        tag.setDouble("fatigue", instance.getFatigue());
        tag.setDouble("fatigue_limit", instance.getLimit());
        tag.setDouble("cosmo_regen", instance.getRegen());

        System.out.println("written to NBT(Fatigue): "+instance.getFatigue());

        return tag;
    }

    @Override
    public void readNBT(Capability<IFatigue> capability, IFatigue instance, EnumFacing side, NBTBase nbt) {

        NBTTagCompound tag = (NBTTagCompound) nbt;
        instance.setFatigue(tag.getDouble("fatigue"));
        instance.setLimit(tag.getDouble("fatigue_limit"));
        instance.setRegen(tag.getDouble("fatigue_regen"));

        System.out.println("read from NBT(Fatigue): "+instance.getFatigue());

    }
}

 

Provider:

Spoiler

public class FatigueProvider implements ICapabilitySerializable<NBTBase> {
    @CapabilityInject(IFatigue.class)
    public static final Capability<IFatigue> FATIGUE_CAPABILITY = null;

    private IFatigue instance = FATIGUE_CAPABILITY.getDefaultInstance();

    @Override
    public boolean hasCapability(Capability<?> capability, EnumFacing facing){
        return capability == FATIGUE_CAPABILITY;
    }

    @Override
    public <T> T getCapability(Capability<T> capability, EnumFacing facing)
    {
        return capability == FATIGUE_CAPABILITY ? FATIGUE_CAPABILITY.<T> cast(this.instance) : null;
    }

    @Override
    public NBTBase serializeNBT(){
        return FATIGUE_CAPABILITY.getStorage().writeNBT(FATIGUE_CAPABILITY, this.instance, null);
    }

    @Override
    public void deserializeNBT(NBTBase nbt) {
        FATIGUE_CAPABILITY.getStorage().readNBT(FATIGUE_CAPABILITY, this.instance,null,nbt);
    }

}

 

Capability Handler:

Spoiler

public class CapabilityHandeler {
    public static final ResourceLocation FATIGUE_CAPABILITY = new ResourceLocation(Reference.MOD_ID,"fatigue");

    @SubscribeEvent
    public void attachCapability(AttachCapabilitiesEvent<Entity> event){
        if (!(event.getObject() instanceof EntityPlayer)) return;
        event.addCapability(FATIGUE_CAPABILITY, new FatigueProvider());
    }
}

 

 

Other Handler:

Spoiler

public class FatiguePlayerHandeler {

    @SubscribeEvent
    public void onPlayerSleep(PlayerSleepInBedEvent event)
    {
        EntityPlayer player = event.getEntityPlayer();
        IFatigue fatigue = player.getCapability(FatigueProvider.FATIGUE_CAPABILITY, null);

        System.out.println(fatigue.getLimit());
        System.out.println(fatigue.getFatigue());
        System.out.println(fatigue.getFatigue());


    }
    @SubscribeEvent
    public void onPlayerClone(PlayerEvent.Clone event){
        EntityPlayer player = event.getEntityPlayer();
        IFatigue fatigue = player.getCapability(FatigueProvider.FATIGUE_CAPABILITY, null);
        IFatigue oldFatigue = event.getOriginal().getCapability(FatigueProvider.FATIGUE_CAPABILITY, null);

        fatigue.setFatigue(oldFatigue.getFatigue());
        fatigue.setLimit(oldFatigue.getLimit());
        fatigue.setRegen(oldFatigue.getRegen());
    }
}

 

Common Proxy:

Spoiler

public class CommonProxy {

    public void preInit() {
        CapabilityManager.INSTANCE.register(IFatigue.class,new FatigueStorage(),Fatigue.class);
        MinecraftForge.EVENT_BUS.register(new CapabilityHandeler());
    }

    public void init() {}

    public void postInit() {}


    public void registerItemRenderer(Item item, int meta, String id) {
    }

}

 

 

 

 

 

 

 

 

 

[[1.12.2] Problem with capability registration]

Nevermind found the solution

[[1.12.2] Problem with capability registration]

Hello everyone.

I am trying to register my capability in my common proxy but my compiler can not resolve "register"

CapabilityManager.INSTANCE.register(IFatigue.class, new FatigueStorage(), Fatigue.class);

 

[[1.12.2] Make item replace itself]

Is there an easy way to make an item replace itself in the players hand with another item?

 

Thanks in advance.

[[1.12.2] Item glint and durabilitybar prolem]

Hello everyone.

 

I made an item which changes its durabilitybar and enchantment glint depending on how often you rightclick.

Every instance of this item now has the same glint and durabilitybar even if their value is different on the server.

I think this is because I saved the values for the glint and durabilitybar method in my item class.

Because my NBTTagcompund is stuck in onItemRightClick.

What is the proper way of saving these values for every instance of my item?

 

Thanks in advance.

[[Solved][1.12.2] Custom Particle Texture problem]

Just now, diesieben07 said:

That event handler method will never be called, @EventBusSubscriber only works for static event handler methods.

When are you calling setParticleTexture?

It seems to work just fine now, thank you for your help.