info/KubeJS/code/other

[giscus[bot]]

info/KubeJS/code/other

一个包含 Minecraft 开发文档的网站。

https://docs.mihono.cn/zh/info/KubeJS/code/other

[M1hono]

/**
 * @type {Internal.Field}
 */
let soundEngineField;
/**
 * @type {Internal.Field}
 */
let instanceToChannelField;

function initReflection() {
    let SoundManager = Java.loadClass("net.minecraft.client.sounds.SoundManager");
    let SoundEngine = Java.loadClass("net.minecraft.client.sounds.SoundEngine");
    
    soundEngineField = SoundManager.__javaObject__.getDeclaredField("f_120349_");
    soundEngineField.setAccessible(true);
    
    instanceToChannelField = SoundEngine.__javaObject__.getDeclaredField("f_120226_");
    instanceToChannelField.setAccessible(true);
}

initReflection();

ClientEvents.tick(event => {
    let soundManager = Client.soundManager;
    let engine = soundEngineField.get(soundManager);
    let instanceToChannel = instanceToChannelField.get(engine);
});

获取私有属性方法。

[WhiseNT]

功能:实现了通过lang.json来动态的为物品添加tooltip(可以添加复数tooltip)
langkey的格式应为

item.modid.name.tooltip(你可以在tooltip后面加任何字符来防止key冲突,无论加什么都会被匹配)

example:

item.create.cogwheel.tooltip1

code:

let lang = "kubejs/assets/kubejs/lang/" + Client.languageManager.selected.toString() + ".json"
let json = JsonIO.read(lang)
json = JsonIO.toObject(json)
ItemEvents.tooltip(event=>{
    json.forEach(element =>{
        //根据langkey组织物品id
        if (element.includes("item.") && element.includes("tooltip"))
        {
            //获取modid
            let modid = element.split('.')[1]
            //将id和langkey组织到1个列表，以便于addAdvanced的内部函数可以访问到langkey
            let itemID = modid + ":" + element.split('.')[2]
            let itemElement = [itemID,element]
            event.addAdvanced(itemElement[0],(item,advance,text)=>{
                for (let i = 1; i < itemElement.length; i++) {
                    const element = itemElement[i];
                    text.add(i,Text.translate(element))
                }
            })
        }
    })
})

[zhenshiz]

功能:利用1.20.1反射的特性实现切换玩家shader的功能
具体实现:在server侧发包到client侧然后通过反射调用api来切换shader
server_script:

  /**
   * 切换shader(旁观附身其他生物会清除当前的shader,但是退出实体后还会重新添加被清除的shader)
   * @param {$Player[] | $Player} players 玩家对象 可以是多人也可以是单人
   * @param {String} path shader的资源路径 比如"minecraft:shaders/post/creeper.json" 如果要清除所有的shader传"reset" 默认为reset
   */
  function toggleShader (players, path) {
    path = path === undefined ? 'reset' : path
    if (Array.isArray(players)) {
      players.forEach(p => {
        p.sendData('toggleShader', { path: path })
      })
    } else {
      players.sendData('toggleShader', { path: path })
    }
  },

client_script:

const { $ResourceLocation } = require("packages/net/minecraft/resources/$ResourceLocation")
const { $CameraType } = require("packages/net/minecraft/client/$CameraType")

let shaderArr = []

NetworkEvents.dataReceived('toggleShader', event => {
  let { data } = event
  let path = data.path
  shaderArr = []
  if (path !== 'reset') {
    shaderArr.push(Utils.id(path))
  }

  if (shaderArr !== null && shaderArr.length === 0) {
    //清除当前所有的shader
    Client.gameRenderer.shutdownEffect()
  } else if (shaderArr !== null && shaderArr.length > 0) {
    shaderArr.forEach(id => {
      try {
        getPrivateMethod(Client.gameRenderer, 'm_109128_', $ResourceLocation, id)
      } catch (error) {
        console.error(`加载后处理器失败: ${error}`)
        return
      }
    })
  }
})

let cameraTypeInfo = $CameraType.FIRST_PERSON
//标记 当玩家附身实体时设置为false
let flag = true
ClientEvents.tick(event => {
  let cameraType = Client.options.cameraType

  //玩家附身实体 清空视角状态 方便玩家退出实体附身后添加shader
  if (flag && cameraTypeInfo === cameraType && shaderArr !== null && shaderArr.length > 0 && !Client.player.controlledCamera) {
    flag = false
    cameraTypeInfo = null
  }
  //玩家无附身实体且在切换视角的时候触发
  if (cameraTypeInfo !== cameraType && shaderArr !== null && shaderArr.length > 0 && Client.player.controlledCamera) {
    shaderArr.forEach(id => {
      try {
        getPrivateMethod(Client.gameRenderer, 'm_109128_', $ResourceLocation, id)
      } catch (error) {
        console.error(`加载后处理器失败: ${error}`)
        return
      }
    })
    cameraTypeInfo = cameraType
    flag = true
  }
})

/**
   * 反射方法(适用于方法为private的情况)
   * @param {any} object 对象实例,由构造函数或者其他方式获取的对象实例而非Class对象
   * @param {String} methodName 方法名
   * @param {Array | any} argsClass 参数Class数组
   * @param {Array | any} args 参数值数组
   * @returns {any} 方法的返回值当然也可能没有返回值
   */
  function getPrivateMethod (object, methodName, argsClass, args) {
    let method = argsClass !== undefined ? object.class.getMethod(methodName, argsClass) : object.class.getMethod(methodName)
    return argsClass !== undefined ? method.invoke(object, args) : method.invoke(object)
  },

[zhenshiz]

关于KubeJS反射的内容可以参考我的git库:https://gitee.com/zhenshiz/kube-js-tool-library/blob/1.20.1/server_scripts/src/utils/helper/MoreUtils.js