luatest.lua

--for i = 1,16 do
  --turtle.select(i)
  --slotItemName = turtle.getItemDetail()
  --if not(slotItemName.name == "minecraft:diamond") then
    --turtle.drop()
  --end
--end
toNotMine = {"turtle","computer","chest","furnace","wool"}
toKeep = {"diamond","coal","iron","lead","redstone","copper","gold","galena"}
function orient()
initX,initY,initZ = gps.locate()
turtle.forward()
newX,newY,newZ = gps.locate()
turtle.back()
xOrient = initX - newX
zOrient = initZ - newZ
if xOrient == 1 then
  turtle.turnRight()
  turtle.turnRight() end
if zOrient == 1 then turtle.turnRight() end
if zOrient == -1 then turtle.turnLeft() end
end

function mine()
  dontMineAhead = 0
  success1, blockAhead = turtle.inspect()
  for i = 1,#toNotMine do
    if success1 == true then
      if string.match(tostring(blockAhead.name),toNotMine[i]) ~= nil then dontMineAhead = 1
      end
    end
  end
  if dontMineAhead ~= 1 then turtle.dig() end
  if dontMineAhead == 1 then avoidAhead() end
end
function mineAbove()
  dontMineAbove = 0
  success2, blockAbove = turtle.inspectUp()
  for i = 1,#toNotMine do
    if success2 == true then
      if string.match(tostring(blockAbove.name),toNotMine[i]) ~= nil then dontMineAbove = 1
      end
    end
  end
  if dontMineAbove ~= 1 then turtle.digUp() end
  if dontMineAbove == 1 then avoidAbove() end
end
function mineBelow()
  dontMineBelow = 0
  success3, blockBelow = turtle.inspectDown()
  for i = 1,#toNotMine do
    if success3 == true then
      if string.match(tostring(blockBelow.name),toNotMine[i]) ~= nil then dontMineBelow = 1
      end
    end
  end
  if dontMineBelow ~= 1 then turtle.digDown() end
  if dontMineBelow == 1 then avoidBelow() end
end
function avoidAhead()

end
function avoidAbove()

end
function avoidBelow()

end

function mineComplete()
  mine()
  mineAbove()
  mineBelow()
end

----------------------------------

turtle.select(1)
turtle.refuel()
xDir = 1
yDir = 1
zDir = 1
x,y,z = gps.locate()
Coords2 = {50,100,50}

orient()
if x > Coords2[1] then xDis = x - Coords2[1] xDir = 0 end
if x <= Coords2[1] then xDis = Coords2[1] - x end
if xDir == 0 then turtle.turnRight() turtle.turnRight() end
for i =1,xDis do
  mineComplete() turtle.forward()
end
if z > Coords2[3] then zDis = z - Coords2[3] zDir = 0 end
if z <= Coords2[3] then zDis = Coords2[3] - z end
if ((zDir == 0 and xDir == 0) or (zDir == 1 and xDir == 1)) then turtle.turnLeft() zTurn = 1 end
if ((zDir == 1 and xDir == 0)or(zDir == 0 and zDir == 1)) then turtle.turnRight() zTurn = 0 end
for i =1,zDis do
  mineComplete() turtle.forward()
end
if y > Coords2[2] then yDis = y - Coords2[2] yDir = 0 end
if y <= Coords2[2] then yDis = Coords2[2] - y end
for i = 1,yDis do
  if yDir == 1 then mineAbove() turtle.up() end
  if yDir == 0 then mineBelow() turtle.down() end
end
if zTurn == 1 then turtle.turnRight() end
if zTurn == 0 then turtle.turnLeft() end