Foxbyte

-- Screen size
local screenW, screenH, halfW, halfH = display.viewableContentWidth, display.viewableContentHeight, display.viewableContentWidth*0.5, display.viewableContentHeight*0.5

-- Grid
numberOfColumns = 16
columnWidth = math.floor( screenW / numberOfColumns )		
function getColumnPosition( columnNumber )
	return (columnNumber - 1) * columnWidth
end
function getColumnWidth( numberOfColumns )

Foxbyte

local currentLatitude = 0
local currentLongitude = 0
local updateGps = 5000 -- update Gps every X seconds

local locationHandler = function( event ) 
  -- On update, stop listening to GPS signal to avoid battery draining
  Runtime:removeEventListener( "location", locationHandler ) 

  -- Check for error (user may have turned off Location Services)
  if event.errorCode then

Foxbyte

function print_r ( t )
    local print_r_cache={}
    local function sub_print_r(t,indent)
        if (print_r_cache[tostring(t)]) then
            print(indent.."*"..tostring(t))
        else
            print_r_cache[tostring(t)]=true
            if (type(t)=="table") then
                for pos,val in pairs(t) do
                    if (type(val)=="table") then