枚举成员
CELL_CHANGE
CELL_CHANGE: 1
CELL_LIGHTSHADOW
CELL_LIGHTSHADOW: 128
CELL_NAVIGATION
CELL_NAVIGATION: 256
CELL_PHYSICS
CELL_PHYSICS: 32
CELL_QUADUV
CELL_QUADUV: 8
CELL_SORTCHANGE
CELL_SORTCHANGE: 512
CELL_TERRAIN
CELL_TERRAIN: 64
CELL_UVTRAN
CELL_UVTRAN: 16
LAYER_COLOR
LAYER_COLOR: 2048
LAYER_PHYSICS
LAYER_PHYSICS: 4096
TILESET_SAZE
TILESET_SAZE: 1024