Maze

local function Define()
  Maze = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}
  Maze[1] = {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}
  for i = 2, 15 do
    Maze[i] = {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}
  end
  Maze[16] = {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}
end

local function ChangeDir(dir, curdir)
  if (curdir+1)%4 == dir
    turtle.turnRight()
  elseif (curdir-1)%4 == dir
    turtle.turnLeft()
  else
    turtle.turnLeft()
    turtle.turnLeft()
  end
end

local function CheckCoord()


local openlist = {}
local closedlist = {}
local k = 1
local tempH = 9*(math.abs(px-dx) + math.abs(py-dy))
local tempG = 0
table.insert(openlist, k, { x = dx, y = dy, g = tempG, h = tempH, f = tempG+tempH, par = 1})

while #openlist > 0 do
  local lowestF = openlist[k].f
  for i = 1, #openlist do
    if openlist[i] < lowestF then
      lowestF = openlist[i].f
      k = i
    end
  end

  if not CheckCoord()
    if not
      table.insert(closedlist,openlist[k])