1. 添加方块

是时候添加方块了。新建common.block包，并新建ExampleBlock类，然后让ExampleBlock类继承Block类。在里面写上如下代码：

public ExampleBlock() {
    super(Material.GROUND, MapColor.DIRT);
    String name = "example_block";
    this.setRegistryName(name).setUnlocalizedName(ExampleMod.MODID+"."+name).setCreativeTab(CreativeTabs.MISC).setHardness(0.5f).setResistance(10);
}

setHardness:设置方块硬度。

setResistance:设置方块爆炸抗性。

1.1. 注册方块

我们在register包下新建BlocksRegister类，在里面写上如下代码：

@Mod.EventBusSubscriber
public class BlocksRegister {
    public static final Block EXAMPLE_BLOCK = new ExampleBlock();

    public BlocksRegister() {
        MinecraftForge.EVENT_BUS.register(this);
    }

    private static Block[] blocks = {
            EXAMPLE_BLOCK
    };

    @SubscribeEvent
    public static void registerBlocks(RegistryEvent.Register<Block> event) {
        for (Block block : blocks) {
            ModelLoader.setCustomModelResourceLocation(Item.getItemFromBlock(block), 0, new ModelResourceLocation(block.getRegistryName(), "inventory"));
            event.getRegistry().register(block);
        }
    }

    @SubscribeEvent
    public static void registerItemBlocks(RegistryEvent.Register<Item> event) {
        for (Block block : blocks) {
            Item itemBlock = new ItemBlock(block).setRegistryName(block.getRegistryName());
            ModelLoader.setCustomModelResourceLocation(itemBlock, 0, new ModelResourceLocation(block.getRegistryName(), "inventory"));
            event.getRegistry().register(itemBlock);
        }
    }
}

方块就注册完成了。

1.2. I18n

我们在en_us.lang中写上

tile.examplemod.example_block.name=Example Block

这样就能看到方块的名字了。

1.3. 添加方块模型

Blockstate: src/main/resources/assets/examplemod/blockstates/example_block.json
Block Model: src/main/resources/assets/examplemod/models/block/example_block.json
Item Model: src/main/resources/assets/examplemod/models/item/example_block.json
Block Texture: src/main/resources/assets/examplemod/textures/block/example_block.png

blockstates/example_block.json

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

models/block/example_block.json

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

models/item/example_block.json

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

textures/block/example_block.png

1.4. 掉落物

在ExampleBlock中添加：

@Override
public Item getItemDropped(IBlockState state, Random rand, int fortune) {
    return Item.getItemFromBlock(this);
}