Define ports at begining of program

[squall2044 0]

Description:

  I am writing a program to automatically control an iris from sgcraft and as such I am opening and closing the same port alot within the same program.

 

Function:

  I would like to be able to define ports at the top of the program and have it populate through.

For example instead of:

local c = require("component")

local e = reuire("event")

local m = c.modem

m.open(123)

m.broadcast(123, "HI!")

m.close(123)

 

It would be great if we could go like this:

local c = require("component")

local e = reuire("event")

local m = c.modem

local p = "123"

m.open(p)

m.broadcast(p, "HI!")

m.close(p)

 

It would also allow for easy changeing of the port in large programs.

Deadline:

  There is no deadline, I'm just tossing you guys an idea.

 

Additional Information:

  Simply ask me if you have other questions

 

Have Fun!!!

[Fingercomp 37]

Why do you need to open and close the port every time you send a message over the port? You can open the port at the beginning of the program, and close the port at the end.

Also, you were almost right with your "if we could" code. You just didn't need to make the port a string.

local com = require("component")

local modem = com.modem

local port = 123

modem.open(port)

modem.broadcast(port, "Hello")
modem.broadcast(port, "world")
modem.broadcast(port, "Another message")

modem.close(port)

[squall2044 0]

It's not each and every time I send a message it is at certain points in the code.

Here is the program I have:

 

local h ="Hello"

local c = require("component")

local e = require("event")

local t = require("term")

local m = c.modem

local p = "12345\n"

local s = c.getPrimary("stargate")

 
t.clear()

while true do

print(e.pull("sgDialIn"))
print("Incoming Wormhole")

print("Closing Iris")

s.closeIris()

m.open(420) --- Choose whatever port you want

print(m.isOpen(420))
print("Channel Open")

e.pull("sgStargateStateChange")

os.sleep(5)

m.broadcast(420, h)

local _, _, from, port, _, handshake = e.pull("modem_message")

 if handshake == h then

  os.sleep(1)
 
   print("Handshake Succeeded. Awaiting Signal")
  
    m.send(from, 420, "Awaiting Signal. Please enter IDC now.")

     local _, _, from, port, _, message = e.pull("modem_message")

      if message == p then

       print("Code: " ..(message).. " Accpeted, Opening Iris")

        s.openIris()

         os.sleep(3)

          m.send(from, 420, "Iris Open. Welcome Home") --- port must be the same as the one you chose earlier

           print("Welcome Home")

            os.sleep(10)

             print("Closing Gate")

              s.disconnect()

               m.close(420)

 else if message ~= p then ---password must be the same as the one you chose earlier

  os.sleep(2)
   print("Code: " ..(message).." Not Accepted, Disconnecting Gate")

     m.send(from, 420, "IDC Rejected")

      os.sleep(4)

       s.disconnect()

        e.pull("sgStargateStateChange")

         os.sleep(1)

          print("Gate Disconnected, Opening Iris")

           s.openIris()

            print("Good-Bye")

             m.close(420)

  end

 end

else if handshake ~= h then

 print("Handshake Failed!")

  os.sleep(1)

   m.send(from, 420, "Go Away")

    os.sleep(1)

     s.disconnect()

      s.openIris()

       m.close(420)

  end

 end

end

 

As you can see I am opening the port when there is an incoming wormhole and then closing it again at the end of each section also there is alot of sending instead of broadcasting for security's sake. Thank you so much I made the minor change in the code and it works perfectly now.

Edited December 10, 2016 by squall2044
Fixing a formatting error