今天我们在1.18.1版本下制作属于自己的方块和物品

1.新建init文件夹 -> init包中新建BlockInit.java和ItemInit.java

BlockInit.java

package com.joy187.re8joymod.init;

import java.util.function.Function;
import com.google.common.base.Supplier;
import com.joy187.re8joymod.Main;
import net.minecraft.world.item.BlockItem;
import net.minecraft.world.item.Item;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.block.SoundType;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.material.Material;
import net.minecraft.world.level.material.MaterialColor;
import net.minecraftforge.registries.DeferredRegister;
import net.minecraftforge.registries.ForgeRegistries;
import net.minecraftforge.registries.RegistryObject;

public class BlockInit {
    //注册机
    public static final DeferredRegister<Block> BLOCKS = DeferredRegister.create(ForgeRegistries.BLOCKS,
            Main.MOD_ID);
    public static final DeferredRegister<Item> ITEMS = ItemInit.ITEMS;

    //定义一个属于我们的方块
    public static final RegistryObject<Block> EXAMPLE_BLOCK = register("example_block",
            () -> new Block(BlockBehaviour.Properties.of(Material.METAL, MaterialColor.COLOR_PURPLE).strength(3.0f)
                    .sound(SoundType.METAL).requiresCorrectToolForDrops()),
            object -> () -> new BlockItem(object.get(), new Item.Properties().tab(Main.TUTORIAL_TAB)));


    private static <T extends Block> RegistryObject<T> registerBlock(final String name,
            final Supplier<? extends T> block) {
        return BLOCKS.register(name, block);
    }

    private static <T extends Block> RegistryObject<T> register(final String name, final Supplier<? extends T> block,
            Function<RegistryObject<T>, Supplier<? extends Item>> item) {
        RegistryObject<T> obj = registerBlock(name, block);
        ITEMS.register(name, item.apply(obj));
        return obj;
    }
}

ItemInit.java

package com.joy187.re8joymod.init;


import com.google.common.base.Supplier;
import com.joy187.re8joymod.Main;
import com.joy187.re8joymod.items.ItemPreAttack;

import net.minecraft.world.item.Item;
import net.minecraftforge.common.ForgeSpawnEggItem;
import net.minecraftforge.registries.DeferredRegister;
import net.minecraftforge.registries.ForgeRegistries;
import net.minecraftforge.registries.RegistryObject;

public class ItemInit {
    //注册机
    public static final DeferredRegister<Item> ITEMS = DeferredRegister.create(ForgeRegistries.ITEMS,
            Main.MOD_ID);

    //定义一个属于我们自己的物品
    public static final RegistryObject<Item> EXAMPLE_ITEM = register("example_item",
            () -> new Item(new Item.Properties().tab(Main.TUTORIAL_TAB)));


    private static <T extends Item> RegistryObject<T> register(final String name, final Supplier<T> item) {
        return ITEMS.register(name, item);
    }

}

2.在Main文件中添加初始化信息

package com.joy187.re8joymod;

import com.joy187.re8joymod.entity.EntityRe8Dimi;
import com.joy187.re8joymod.init.BlockInit;
import com.joy187.re8joymod.init.EntityInit;
import com.joy187.re8joymod.init.ItemInit;

import net.minecraft.world.item.CreativeModeTab;
import net.minecraft.world.item.ItemStack;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.entity.EntityAttributeCreationEvent;
import net.minecraftforge.eventbus.api.IEventBus;
import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;

@Mod("re8joymod")
public class Main {


    public static final String MOD_ID = "re8joymod";
    public static final CreativeModeTab TUTORIAL_TAB = new CreativeModeTab(MOD_ID) {
        @Override
        @OnlyIn(Dist.CLIENT)
        public ItemStack makeIcon() {
            return new ItemStack(BlockInit.EXAMPLE_BLOCK.get());
        }
    };

    public Main() {
        IEventBus bus = FMLJavaModLoadingContext.get().getModEventBus();
        //添加物品，方块的初始化信息
        ItemInit.ITEMS.register(bus);
        BlockInit.BLOCKS.register(bus);
        MinecraftForge.EVENT_BUS.register(this);
    }

    public static void setup() {
        IEventBus bus = MinecraftForge.EVENT_BUS;
    }

}

3.在resources/assets/模组名称/下新建一格blockstates文件夹 -> 在该文件夹中新建方块名.json文件(名称与BlockInit.java中你自定义的方块名称保持一致)

example_block.json

{
    "variants": {
        "": {
            "model": "re8joymod:block/example_block"
        }
    }
}

同样的新建models文件夹 -> 在models中新建block和item两个文件夹

在block中新建方块名.json文件(名称与BlockInit.java中你自定义的方块名称保持一致)

example_block.json(指明你方块的贴图)

{
    "parent": "block/cube_all",
    "textures": {
        "all": "re8joymod:block/example_block"  
    }
}

在item中新建物品名.json文件(名称与ItemInit.java中你自定义的方块名称保持一致)

example_item.json

{
    "parent": "item/generated",
    "textures": {
        "layer0": "re8joymod:item/example_item"
    }
}

注：方块也是特殊的物品，所以要为方块新建一个属于它的.json文件：

example_block.json

{
    "parent": "re8joymod:block/example_block"
}

同样的新建textures文件夹 -> 在textures中新建block和item两个文件夹

分别将我们的方块贴图和物品贴图放入文件夹中:

4.在resources/data文件夹下新建2个文件夹，一个叫minecraft，另一个是你的模组名称(以re8joymod为例)

在minecraft文件夹中新建 -> tags文件夹 -> tags包中新建blocks文件夹 -> blocks包中新建mineable文件夹 ->在mineable中新建 pickaxe.json(定义方块是否可挖掘)

pickaxe.json

{
    "replace": false,
    "values": [
        "re8joymod:example_block"   //这里面的方块都是可以被挖掘的
    ]
}

在re8joymod中新建loot_tables文件夹 -> 在loot_tables中新建blocks文件夹 -> 在blocks文件夹中新建 方块名.json(名称与BlockInit.java中你自定义的方块名称保持一致)

example_block.json(挖掉之后方块的掉落物)

{
    "type": "minecraft:block",
    "pools": [
        {
            "rolls": 1.0,
            "entries": [
                {
                    "type": "minecraft:item",
                    "name": "re8joymod:example_block"   //掉落物格式:模组名称:物品、方块的名称，原版默认是minecraft:xxx
                }
            ]
        }
    ]
}

5.保存所有文件，刷新项目，启动游戏

OK，完美！