ForTest.txt

jvm参数加 -Dmixin.debug.export=true 可以输出mixin的注入后的结果

重置gradle
./gradlew clean
./gradlew --refresh-dependencies


调试
System.out.println(123);


发送信息给玩家
player.sendMessage(Text.literal((String.valueOf(123))),false);

播放音乐
world.playSound(user, user.getBlockPos(), ModSounds.METAL_DETECTOR_FOUND_ORE, SoundCategory.PLAYERS);


附魔查看
int k = EnchantmentHelper.getLevel(Enchantments, itemStack);
if (k > 0) {
}
方块附魔查看
int k = BlockEnchantmentStorage.getLevel(Enchantments.INFINITY,pos);
if(k>0){
}

给奇怪的方块实体添加onPlace
if (!world.isClient) {
    System.out.println(itemStack.getEnchantments());
    if (!Objects.equals(itemStack.getEnchantments(), new NbtList())) {
        NbtList enchantments = itemStack.getEnchantments(); // 获取物品栈上的附魔信息列表
        BlockEnchantmentHelper.storeEnchantment(pos,enchantments);// 将附魔信息列表存储
    }
}


对某个实体造成伤害
this.damage(getDamageSources().playerAttack(closestPlayer), 10f+level*2);
entity.damage(entity.getDamageSources().cactus(),1f);

Mixin Helper
// 创建一个静态Map来存储实体ID和值
private static final Map<Integer, Integer> entityValueMap = new HashMap<>();

// 在适当的时候将实体ID和值添加到Map中
public static void storeEntityValue(int entityID, int value) {
    entityValueMap.put(entityID, value);
}
// 在需要时从Map中检索值
public static int getEntityValue(int entityID) {
    return entityValueMap.getOrDefault(entityID, 0); // 默认值为0，如果未找到实体ID
}




检测双手物品的附魔
Hand hand = this.getActiveHand();
ItemStack itemStack = this.getStackInHand(hand);

PlayerEntity playerEntity = getPlayerOwner();
if (playerEntity != null) {
    Hand hand = playerEntity.getActiveHand();
    if (hand != null) {
        ItemStack itemStack = playerEntity.getStackInHand(hand);
        if (itemStack.getItem() == Items.123) {
            int k = EnchantmentHelper.getLevel(ModEnchantments.123, itemStack);
            if (k > 0) {
            }
        }
    }
}

引雷
LightningEntity lightningEntity = EntityType.LIGHTNING_BOLT.create(this.getWorld());
if (lightningEntity != null) {
    lightningEntity.refreshPositionAfterTeleport(Vec3d.ofBottomCenter(blockPos));
    lightningEntity.setChanneler(user instanceof ServerPlayerEntity ? (ServerPlayerEntity) user : null);
    this.getWorld().spawnEntity(lightningEntity);
    SoundEvent soundEvent = SoundEvents.ITEM_TRIDENT_THUNDER;
    this.playSound(soundEvent, 5, 1.0F);
}

不显示指令
dispatcher.parse("gamerule sendCommandFeedback false", server.getCommandSource());
使用某个指令
if (user instanceof ServerPlayerEntity) {
    MinecraftServer server = user.getServer();
    // 获取服务器命令调度程序
    CommandDispatcher<ServerCommandSource> dispatcher = server.getCommandManager().getDispatcher();
    try {
        // 解析指令并获取命令源
        ParseResults<ServerCommandSource> parseResults
                = dispatcher.parse("tick freeze", server.getCommandSource());
        // 执行指令
        dispatcher.execute(parseResults);

        // 在控制台输出提示信息
    } catch (CommandSyntaxException e) {
        // 指令语法异常处理
        e.printStackTrace();
    }
}


计时器
    private void startDelayedOperation(PlayerEntity player, BlockPos pos) {
        if (ServerManager.getServerInstance() != null) {
            ServerManager.getServerInstance().execute(() -> {
                Timer timer = new Timer();
                timer.schedule(new TimerTask() {
                    @Override
                    public void run() {
                        //执行的东西
                    }
                }, 200); // 延迟0.2秒执行，单位为毫秒
            });
        }
    }

生成动物
EntityType.COW.spawn(((ServerWorld) user.getWorld()),user.getBlockPos(), SpawnReason.TRIGGERED);

Mixin中强制转换this为原类
PlayerEntity user = (PlayerEntity) (Object) this;

网络传输
PacketByteBuf buf = PacketByteBufs.create();//C2S
buf.writeInt(*);
ClientPlayNetworking.send(ModMessages.*, buf);

PacketByteBuf buf = PacketByteBufs.create();//S2C
buf.writeInt(*);
ServerPlayNetworking.send((ServerPlayerEntity) player, ModMessages.*, buf);

获取ClientWorld实例
MinecraftClient.getInstance().world

有MC-VR-API并且在VR中的时候
if (entity instanceof PlayerEntity user && VRPlugin.canRetrieveData(user)) {

*玩家添加速度在客户端，其他生物添加速度在服务端*