View difference between Paste ID: D3VzyMtz and Z2VZEUCP

 local sensor = peripheral.wrap("top")
 local bsensor = peripheral.wrap("openperipheral_sensor_1")
 local monitor = peripheral.wrap("monitor_3")
 
 monitor.clear()
 monitor.setCursorPos(1,1)
 
-local pIn = {}
+local pIn =
 {
-function welcome()
+	["jonassvensson4"] = false
-  monitor.write("Welcome!")
+}
-  monitor.setCursorPos(1,2)
+
-  monitor.write(username)
+-- Get users outside the shop
-  sleep(2)
+
-  monitor.clear()
+
   if playersb[1] == nil then
        -- No one is outside
   else
     usernameOut = playersb[1].name
     for name, status in pairs(pIn) do
       if pIn[usernameOut] == true then
         monitor.setTextColor(colors.red)
 		monitor.setCursorPos(1,1)
-    monitor.setCursorPos(1,1)
+        monitor.write("Please come again!")
-
+        monitor.setTextColor(colors.white)
-    for x, y in pairs(pIn) do
+
-      if x == usernameOut then
+        monitor.write("  " .. usernameOut)
-        monitor.write("Goodbye")
+
         monitor.clear()
-        monitor.write(usernameOut)
+        pIn[usernameOut] = false
       end
     end
-        remove = "true"
+
 end
 
-    if remove == "true" then
+-- Get user who enters the shop
-      pIn[usernameOut] = nil
+
-      remove = "false"
+
   -- Checks if there's a player inside the shop
   if players[1] == nil then
     username = "null"
   else
   -- Player found
     username = players[1].name
     for name, status in pairs(pIn) do
 	  if pIn[username] == true then
         -- Player has already been in the shop
         playersb = bsensor.getPlayers()
-    if next(pIn) == nil then
+  		if playersb[1] == nil then
-      -- table null
+       		-- No one is outside
-      welcome()
+  		else
-      pIn[username] = "1"
+    		usernameOut = playersb[1].name
-    else
+			if pIn[usernameOut] == true then
-      for n, a in pairs(pIn) do
+				pIn[usernameOut] = false
-        if n == username then
+				break
-        local n = username
+			end
-          -- Player has already been in the shop
+		end
-          remove0 = "true"
+      elseif pIn[username] == false then
-        else
+        pIn[username] = true
-          welcome()
+
-          pIn[username] = "1"
+        -- Welcome message:
-        end
+        monitor.setTextColor(colors.green)
  		monitor.setCursorPos(1,1)
-      if remove0 == "true" then
+  	  	monitor.write("     Welcome!")
-        getUserOut()
+ 		monitor.setCursorPos(1,2)
-        remove0 = "false"
+  	    monitor.setTextColor(colors.white)
   	    monitor.write("  " .. username)
   	    sleep(2)
  	    monitor.clear()
       end
     end
   end
 end
 
-  getUserOut()
+
   monitor.setCursorPos(1,1)
   getUser()
   sleep(0.75)
 end