(function(){

	var vec2, Rect, Room, sort, UidGenerator, _
	if ('window' in this) {
		vec2 = window.vec2
		Rect = window.Rect
		Room = window.Room
		sort = window.sort
		UidGenerator = window.UidGenerator
		_ = window._
	}
	else {
		vec2 = require('../../models/vec2')
		Rect = require('../../models/rect')
		Room = require('../../models/room')
		UidGenerator = require('../../util/uid')
		sort = require('../../util/sort')
		_ = require('lodash')
		FRONT = 0x1, BACK = 0x2, LEFT = 0x4, RIGHT = 0x8, FLOOR = 0x10, CEILING = 0x20
		TOP = CEILING, BOTTOM = FLOOR
		function sidesToString(sides){
			var s = ""
			if (sides & FRONT) s += "front "
			if (sides & BACK)  s += "back "
			if (sides & LEFT)  s += "left "
			if (sides & RIGHT) s += "right "
			if (sides & TOP)  s += "top "
			if (sides & BOTTOM) s += "bottom "
			return s
		}
	}

	var Walls = new function(){

		var base = this
		
		base.list = []
		base.lookup = {}
		base.colors = {}

		base.first = function(){
		  for (var i in base.list) {
		    if (base.list.hasOwnProperty(i)) { 
          return base.list[i]
		    }
		  }
		}
		
		base.assign = function(list){
		  base.list = list
		  base.lookup = {}
		  list.forEach(function(wall){
		    base.lookup[wall.id] = wall
		  })
		}
		
		base.bind = function(){
			base.list.forEach(function(wall){
				wall.bind()
			})
		}

		base.count = function(){
			return this.list.length
		}
	
		base.forEach = function(f){
			return base.list.forEach(f)
		}
	
		base.map = function(f){
			return base.list.map(f)
		}
		
		base.serialize = function(){
		  var data = []
			base.list.forEach(function(wall){
			  data.push(wall.serialize())
			})
			return data
		}
	
		base.deserialize = function(walls_data){
			walls_data.forEach(function(wall_data){
			  if (! wall_data) { return }
			  var wall = base.lookup[ wall_data.id ]
			  wall.deserialize( wall_data )
			})
    },
		
		base.paint = function(){
      var wallColor = rgba_string(Walls.colors.wall, app.defaults.wallOpacity)
      var outlineColor = rgb_string(Walls.colors.outline)
      var floorColor = rgb_string(Walls.colors.floor)
      var ceilingColor = rgb_string(Walls.colors.ceiling)
      Walls.forEach(function(wall){
        wall.outline(wallColor, outlineColor)
      })
      Rooms.forEach(function(room){
        room.setFloorColor(floorColor)
        room.setCeilingColor(ceilingColor)
      })
		}
		
    base.setColor = {
    
      wall: function(rgb){
        var rgbaColor = rgba_string(rgb, app.defaults.wallOpacity)
        Walls.colors.wall = rgb
        Walls.forEach(function(wall){
          wall.outline(rgbaColor, null)
        })
      },

      outline: function(rgb){
        var rgbColor = rgb_string(rgb)
        Walls.colors.outline = rgb
        Walls.forEach(function(wall){
          wall.outline(null, rgbColor)
        })
      },
    
      floor: function(rgb){
        var rgbColor = rgb_string(rgb)
        Walls.colors.floor = rgb
        Rooms.forEach(function(room){
          room.setFloorColor(rgbColor)
        })
      },

      ceiling: function(rgb){
        var rgbColor = rgb_string(rgb)
        Walls.colors.ceiling = rgb
        Rooms.forEach(function(room){
          room.setCeilingColor(rgbColor)
        })
      },
  
    }
  }

	if ('window' in this) {
		window.Walls = Walls
	}
	else {
		module.exports = Walls
	}
})()