loadTextures 加载图块纹理

loadTextures

类型: MethodDeclaration

所属类: SceneTilemap

定义位置: scene.ts

描述

加载图块纹理

返回值

类型: Promise<void>

源代码

位置: 第 2808 行

private async loadTextures(): Promise<void> {
    await new Promise(resolve => {
      const tiles = this.tiles
      const length = tiles.length
      const textures = this.textures
      // 如果是非空图块，同步加载图块组纹理
      for (let i = 0; i < length; i++) {
        const tile = tiles[i]
        if (tile !== 0) {
          this.loadTexture(tile)
        }
      }
      // 不存在图块纹理，立即返回
      const list = Object.values(textures) as Array<BaseTexture>
      if (list.length === 0) {
        return resolve(void 0)
      }
      // 等待加载所有图块纹理
      let loaded = 0
      const callback = () => {
        if (++loaded === list.length) {
          // 全部纹理加载后完成Promise
          if (this.textures === textures) {
            this.loaded = true
            return resolve(void 0)
          }
        }
      }
      for (const texture of list) {
        // 侦听纹理加载完毕事件
        texture.on('load', callback)
      }
    })
  }

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文档生成时间：2025/7/7 12:07:06