text: ;'use strict'
  
  var EPSILON = 1e-6
  
  var _db = {
      path: '/home/joates/code/node-3d-world-engine/db/world'
    , options: { valueEncoding: 'json' }
  }
  Object.freeze(_db)
  
  var _tile = {
      size: 256
    , key_depth: 5
  }
  Object.freeze(_tile)
  
  var _edge = {          //  used in *tile.flags.welded_edges
      NORTH: 1
    , SOUTH: 2
    , EAST:  4
    , WEST:  8
    , _MIN: EPSILON
    , _MAX: _tile.size - EPSILON
  }
  Object.freeze(_edge)
  
  var _region = {        //  used in Region.flags
      BOUNDARY: 1
    , CORNER:   2
    , WELDED:   4
    , WATER:    8
    , min_distance: _tile.size / 18
  }
  Object.freeze(_region)
  
  var _cache = {
      max: 9
  }
  Object.freeze(_cache)
  
  exports.db = _db
  exports.edge = _edge
  exports.cache = _cache
  exports.region = _region
  exports.map_tile = _tile
  exports.EPSILON = EPSILON
  