encodeTerrains 编码地形

encodeTerrains

类型: MethodDeclaration

定义位置: codec.ts

描述

编码地形

参数 terrains: 地形数组

返回值:地形数据编码

参数

参数名	类型	描述	默认值
terrains	Uint8Array	-	-

返回值

类型: string

地形数据编码

源代码

位置: 第 133 行

public encodeTerrains(terrains: Uint8Array): string {
    const {encodeClone} = this
    const TERRAINS = terrains
    const LENGTH = TERRAINS.length
    const BYTES = GL.arrays[0].uint8
    let Bi = 0
    let Ti = 0
    while (Ti < LENGTH) {
      if (TERRAINS[Ti] === 0) {
        let blankCount = 1
        Ti += 1
        while (TERRAINS[Ti] === 0) {
          blankCount++
          Ti++
        }
        if (blankCount <= 49) {
          BYTES[Bi++] = blankCount + 76
        } else if (blankCount <= 98) {
          BYTES[Bi++] = 125
          BYTES[Bi++] = blankCount - 49 + 76
        } else {
          BYTES[Bi++] = 126
          Bi = encodeClone(BYTES, Bi, blankCount)
        }
      } else if (
        TERRAINS[Ti] === TERRAINS[Ti - 1] &&
        TERRAINS[Ti] === TERRAINS[Ti + 1]) {
        let cloneCount = 2
        Ti += 2
        while (TERRAINS[Ti] === TERRAINS[Ti - 1]) {
          cloneCount++
          Ti++
        }
        if (cloneCount <= 25) {
          BYTES[Bi++] = cloneCount + 50
        } else if (cloneCount <= 50) {
          BYTES[Bi++] = 75
          BYTES[Bi++] = cloneCount - 25 + 50
        } else {
          BYTES[Bi++] = 76
          Bi = encodeClone(BYTES, Bi, cloneCount)
        }
      } else {
        BYTES[Bi++] = TERRAINS[Ti++] + 35
      }
    }
    return this.textDecoder.decode(
      new Uint8Array(BYTES.buffer, 0, Bi)
    )
  }

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文档生成时间：2025/7/21 20:53:39