Pocket Maps Application

local tArg = {...}
local DataPath

local x, y, z = gps
local w, h = term.getSize()

local Locations = {}
local Zoom = 0.2

local Nodes = {}

function GetData()
local file = fs.open(DataPath,"r")
Nodes = textutils.unserialize(file.readAll())
end

function DrawUI()
Text("UI1","N",w/2,1)
Text("UI2","S",w/2,h)
Text("UI3","W",1,h/2)
Text("UI4","E",w,h/2)
end

function DrawLocations()
for i = 1, #Locations do
    paintutils.drawPixel(Locations[i][2] * Zoom, Locations[i][3] * Zoom, colors.red)
end
end

function Text(id,text,x,y)
os.queueEvent("application_task","create_text",id,text,x,y)
end

if tArg[1] == "start" then
    os.queueEvent("application_task","clearEntities")
    DrawUI()
    DrawLocations()
end