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功能效果

创建一个兑换券，当使用兑换券对着兑换机右键时，获得一条烤鱼

创建兑换券

创建ExchangeCouponsItem.java，继承Item，定义兑换券内容

public class ExchangeCouponsItem extends Item {public ExchangeCouponsItem(Properties p_41383_) {super(p_41383_);}@Overridepublic InteractionResult useOn(UseOnContext p_41383_) {// 获取方块信息Level level = p_41383_.getLevel();BlockPos blockpos = p_41383_.getClickedPos();BlockState blockstate = level.getBlockState(blockpos);// 检查方块是否为自定义的方块if (blockstate.getBlock() == TestMod.myblock.get()) {// 获取玩家信息Player player = p_41383_.getPlayer();// 往物品栏添加一条烤鱼player.addItem(new ItemStack(Items.COOKED_COD));// 获取物品栏ItemStack itemstack = p_41383_.getItemInHand();// 将兑换券-1itemstack.shrink(1);// 返回成功return InteractionResult.SUCCESS;}return super.useOn(p_41383_);}}

注册兑换券

	public static final DeferredRegister<Item> ITEMS = DeferredRegister.create(ForgeRegistries.ITEMS, MODID);// 自定义兑换券物品public static final RegistryObject<Item> exchangeCouponsItem = ITEMS.register("exchange_coupons",() -> new ExchangeCouponsItem(new Item.Properties().setId(ITEMS.key("exchange_coupons"))));public TestMod(FMLJavaModLoadingContext context) {IEventBus modEventBus = context.getModEventBus();ITEMS.register(modEventBus);// 注册选项卡modEventBus.addListener(this::addCreativeTab);}public void addCreativeTab(BuildCreativeModeTabContentsEvent event) {// 将自定义物品放到功能方块下if (event.getTabKey() == CreativeModeTabs.FUNCTIONAL_BLOCKS) {event.accept(exchangeCouponsItem);}}

添加材质

在items创建exchange_coupons.json文件

{"model": {"type": "minecraft:model","model": "testmod:item/exchange_coupons"}
}

在lang创建en_us.json和zh_cn.json文件

{"item.testmod.exchange_coupons" : "兑换卷"
}

在models.item添加exchange_coupons.json文件

{"parent": "minecraft:item/generated","textures": {"layer0": "testmod:item/exchange_coupons"}
}

在textures.item添加材质

效果