I did this before and its not working. I will make a detailed walk through. Be not suprised, I have changed the php output, thought maybe the {}[] in the summon command made problems.
They did not, it is still not working. But I think it is not important because this is just an testing for the later whole program.
Btw. if I paste the php output directly into the code it is working. So output itself is okay. It seems to be a problem with the string.
The new php output with three subway stations.
{ [1] = {text="Burg", color=colors.blue, tickethopper="21 22 23", destination="Burg"}, [2] = {text="Hotel", color=colors.blue, tickethopper="24 25 26", destination="Hotel"}, [3] = {text="WTC", color=colors.blue, tickethopper="27 28 29", destination="WTC"} }
Here is the Error code:startup: 45: attempt to get length of nil
The Code itself, line 45 is maked with a comment – ###################
local cc_side_traindepot = "right"
local cc_side_ticket = "left"
local cc_side_traingo = "back"
local cc_station = "Marktplatz"
local cc_track = "A"
local cc_line = "U79"
local itemid = "4787"
local myurl = "http://*********.de/*********.php?do=GetOptionTable&st="..cc_station.."&tr="..cc_track.."&li="..cc_line..""
http.request(myurl)
local requesting = true
while requesting do
local event, url, sourceText = os.pullEvent()
if event == "http_success" then
respondedText = sourceText.readAll()
--print ("Antwort: "..respondedText)
requesting = false
elseif event == "http_failure" then
respondedText = ("Server didn't respond.")
print ("Antwort: "..respondedText)
requesting = false
end
end
--file_operation = fs.open("menu_options_file.txt", "w")
--file_operation.write(respondedText)
--file_operation.close()
--file = fs.open("menu_options_file.txt","r")
--menu_options = file.readAll()
--file.close()
print (respondedText) -- To be sure something was read out
sleep (1)
local menu_options = textutils.unserialize( respondedText )
--local menu_options = {[1] = {text="Burg", color=colors.blue, playerticket="/summon Item 21 22 23 {Item:{id:4787,Count:1,tag:{dest:Burg,owner:GregoriMarow,display:{Name:Fahrticket}}}}", depotticket="", carthopper=""},[2] = {text="Hotel", color=colors.blue, playerticket="/summon Item 24 25 26 {Item:{id:4787,Count:1,tag:{dest:Hotel,owner:GregoriMarow,display:{Name:Fahrticket}}}}", depotticket="", carthopper=""},[3] = {text="WTC", color=colors.blue, playerticket="/summon Item 27 28 29 {Item:{id:4787,Count:1,tag:{dest:WTC,owner:GregoriMarow,display:{Name:Fahrticket}}}}", depotticket="", carthopper=""},}
local termX, termY = term.getSize() --The x/y size of the terminal
local function menuDraw(selected) --Our main draw function
local yPos = termY/2 - #menu_options/2 --The initial y position ########################### 45 ###############################
for index, data in pairs(menu_options) do
menu_options[index].bounds = { --Create a new table in each option with the boundary data
x1 = termX/2 - (#data.text+4)/2;
x2 = termX/2 + (#data.text+4)/2;
y = yPos;
}
term.setTextColor(data.color)
term.setCursorPos(data.bounds.x1, data.bounds.y)
local text =
index==selected and "[ "..data.text.." ]" or
" "..data.text.." " --Essentially an if statement, but in a contracted form
term.write(text)
yPos = yPos+1 --Increment the initial y pos so we can move on the next line
end
end
local function checkClick(x,y) --Check the mouse click to see if there's a menu option
for index, data in pairs(menu_options) do
if x>= data.bounds.x1 and x<= data.bounds.x2 and y==data.bounds.y then
return index --Returns the index of the clicked option
end
end
return false --If it went through the entire for loop without success, return false
end
term.setBackgroundColor(colors.white)
term.clear()
local selector = 1 --Our selector
while true do --The main loop. I would generally put this inside of a function for a program.
menuDraw(selector) --Draw the menu first
local e = {os.pullEvent()} --Pull an event and put the returned values into a table
if e[1] == "key" then --If it's a key...
if e[2] == keys.down then -- ... and it's the down arrow
selector = selector < #menu_options and selector+1 or 1 --Increment the selector if the selector < #menu_options. Otherwise reset it to 1
elseif e[2] == keys.up then
selector = selector > 1 and selector-1 or #menu_options --Decrement the selector if the selector > 1. Otherwise, reset it to #menu_options
elseif e[2] == keys.enter then
break --Break out of the loop
end
elseif e[1] == "mouse_click" then
local value = checkClick(e[3], e[4]) --Check the mouse click
if value then --If checkClick returns a value and not false
selector = value --Set the selector to that value and break out of the loop
break
end
end
end
term.clear()
term.setCursorPos(1,1)
term.write("Selected: "..selector)
term.setCursorPos(1,2)
term.write(menu_options[selector]["tickethopper"]) -- Just for testing
--term.write(menu_options[selector]["playerticket"])
--commands.exec(menu_options[selector]["playerticket"])
--os.sleep(2)
--rs.setOutput ("left",true)
--os.sleep(0.5)
--rs.setOutput ("left",false)
Sry for the many outcommented code, but I am in the stage of testing XD.
Alternatively if you have a different idea how to transmit a php output and then transfer it to the above table format I would try this also.
I could reduce the amount of data that should be transmitted by only using station name and mysql table id and then later select all necessary datas after user selection of the target station.
