cocos-nodejs-io-game/apps/server/src/utils/index.ts

import fs from 'fs-extra'
import path from 'path'
import { ApiMsgEnum, InputTypeEnum, strdecode } from '../Common'

export const getTime = () => new Date().toLocaleString().split("├")[0]

//symlink同步
export const symlinkCommon = async () => {
  const src = path.resolve(__dirname, '../Common')
  const dst = path.resolve(__dirname, '../../../client/assets/Scripts/Common')

  if (await fs.lstat(dst).then(v => v.isSymbolicLink()).catch(() => false) && await fs.readlink(dst) === src) {
    console.log('同步成功！')
  } else {
    fs.symlink(src, dst).then(() => {
      console.log('同步成功！')
    }).catch((e) => {
      console.log('同步失败！', e)
    })
  }
}

//copy同步
export const copyCommon = async () => {
  const src = path.resolve(__dirname, '../Common')
  const dst = path.resolve(__dirname, '../../../client/assets/Scripts/Common')
  console.log(src, dst);

  // clean
  await fs.remove(dst)

  //create
  await fs.ensureDir(dst)

  // copy
  await fs.copy(src, dst)
  console.log('同步成功！')
}

export const binaryDecode = (buffer: Buffer) => {
  let index = 0
  const type = buffer.readUint8(index++)

  if (type === ApiMsgEnum.MsgClientSync) {
    const inputType = buffer.readUint8(index++)
    if (inputType === InputTypeEnum.ActorMove) {
      const id = buffer.readUint8(index++)
      const directionX = buffer.readFloatBE(index)
      index += 4
      const directionY = buffer.readFloatBE(index)
      index += 4
      const dt = buffer.readFloatBE(index)
      index += 4
      const msg = {
        name: ApiMsgEnum.MsgClientSync,
        data: {
          type: InputTypeEnum.ActorMove,
          id,
          direction: {
            x: directionX,
            y: directionY,
          },
          dt
        }
      }

      return msg
    } else if (inputType === InputTypeEnum.WeaponShoot) {
      const id = buffer.readUint8(index++)
      const positionX = buffer.readFloatBE(index)
      index += 4
      const positionY = buffer.readFloatBE(index)
      index += 4
      const directionX = buffer.readFloatBE(index)
      index += 4
      const directionY = buffer.readFloatBE(index)
      index += 4
      const msg = {
        name: ApiMsgEnum.MsgClientSync,
        data: {
          type: InputTypeEnum.WeaponShoot,
          id,
          position: {
            x: positionX,
            y: positionY,
          },
          direction: {
            x: directionX,
            y: directionY,
          },
        }
      }

      return msg
    } else {
      const dt = buffer.readFloatBE(index)
      index += 4
      const msg = {
        name: ApiMsgEnum.MsgClientSync,
        data: {
          type: InputTypeEnum.TimePast,
          dt,
        }
      }
      return msg
    }
  } else {
    return {
      name: type,
      data: JSON.parse(strdecode(new Uint8Array(buffer.slice(1))))
    }
  }
}