speed-test-turtle

local time1 = os.clock()
for i = 1, 15 do
  turtle.forward()
end
local time2 = os.clock()
local tTime = time2 - time1

print("for ->  " .. (tTime / 15) .. "s per block")



local time1 = os.clock()
for i = 1, 15 do
  turtle.detect()
  turtle.forward()
end
local time2 = os.clock()
local tTime = time2 - time1

print("det+for -> " .. (tTime / 15) .. "s per block")


--====================================================--

-- miner constants
FACE_N = 0
FACE_E = 1
FACE_S = 2
FACE_W = 3

miner        = {} -- the turtle
miner['direction'] = 0
miner['x']   = 0
miner['y']   = 0
miner['z']   = 0

miner['start_x'], miner['start_z'], miner['start_y'] = miner['x'], miner['z'], miner['y']
miner['start_direction'] = miner['direction']


function miner.updateHz(n)
  n = n or 1
  if     miner['direction'] == FACE_N then miner['z'] = miner['z'] - n
  elseif miner['direction'] == FACE_S then miner['z'] = miner['z'] + n
  elseif miner['direction'] == FACE_W then miner['x'] = miner['x'] - n
  elseif miner['direction'] == FACE_E then miner['x'] = miner['x'] + n
  end
end


function miner.forward(n)
  n = n or 1
  for i=1,n do
    if (not turtle.forward()) then return false end
    miner.updateHz(1)
  end
  return true
end



local time1 = os.clock()
for i=1,15 do
  if turtle.getFuelLevel() < 1 then
    print(123)
  end

  if (not miner.forward()) then
    -- this needs to be looped in case of airdrops (sand, gravel etc)
    -- also to wait for despawn?
    while turtle.detect() do
      turtle.dig()
      os.sleep(0.1)
    end

    while not miner.forward()  do
      turtle.attack()
    end
  end
end
local time2 = os.clock()
local tTime = time2 - time1

print("det+dig+for -> " .. (tTime / 15) .. "s per block")