View difference between Paste ID: wPGmwVYk and DYw3Ebdv

 term.clear()
 local laser = peripheral.find("warpdriveLaser")
 local mininglasers = {}
 local sides = peripheral.getNames()
 
 local function saveZeroLayersCount(count)
   local file = fs.open("zero_layers.txt", "w")
   file.write(tostring(count))
   file.close()
 end
 
 local function getZeroLayersCount()
   if fs.exists("zero_layers.txt") then
     local file = fs.open("zero_layers.txt", "r")
     local count = tonumber(file.readAll())
     file.close()
     return count
   end
   return 0
 end
 
 for _, side in pairs(sides) do
   if peripheral.getType(side) == "warpdriveMiningLaser" then
     table.insert(mininglasers, peripheral.wrap(side))
   end
 end
 
 laser.beamFrequency(1420)
 
 if not laser then
   print("No warpdriveLaser detected")
   os.exit()
 end
 
 if #mininglasers == 0 then
   print("No warpdriveMiningLaser detected")
   os.exit()
 end
 
 print("Press the 'M' key to emit a laser scan and start the mining lasers with calculated layer offset.")
 print("Press the 'S' key to stop mining and reboot.")
--- Loop to wait for key events
+
 local miningActive = false
-  local event, key = os.pullEvent("key")
+
 while true do
-  if key == 50 then
+  local _, key = os.pullEvent("key")
   if key == 31 then -- S key
     print("Stopping mining lasers and rebooting...")
     for _, mininglaser in pairs(mininglasers) do
       mininglaser.enable(false)
     end
     os.reboot()
   elseif key == 50 and not miningActive then -- M key
     local _, laserY, _ = laser.getLocalPosition()
     local targetY = 0
 
     repeat
       laser.emitBeam(0, -1, 0)
       os.sleep(1)
       _, _, targetY = laser.getScanResult()
     until targetY ~= 0
 
     local mineTarget = laserY - targetY - 1
     print("Target is: " .. mineTarget .. " blocks below")
 
-    -- Periodically check the mining state
+
       mininglaser.offset(mineTarget)
       mininglaser.enable(true)
     end
     miningActive = true
-      -- You'll need to modify the below lines once you understand the structure of 'state'
+
     local consecutiveZeroLayers = getZeroLayersCount()
 
     while true do
       os.sleep(1)
       local state, isActive, energy, currentLayer, mined, total = mininglasers[1].state()
 
       if total == 0 then
         consecutiveZeroLayers = consecutiveZeroLayers + 1
       else
         consecutiveZeroLayers = 0
       end
 
       saveZeroLayersCount(consecutiveZeroLayers)
 
       if consecutiveZeroLayers >= 3 then
         print("3 consecutive layers with 0 total blocks detected. Stopping mining.")
         print("")
         print("Press the 'M' key to emit a laser scan and start the mining lasers with calculated layer offset.")
         for _, mininglaser in pairs(mininglasers) do
           mininglaser.enable(false)
         end
-end
+        miningActive = false
         fs.delete("zero_layers.txt")
         break
       end
     end
   end
 end