turtle_server

gur111

Jun 12th, 2025 (edited)

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-- URL: https://pastebin.com/QbSGDWvG
-- Run this on startup:
-- Get the script: pastebin get QbSGDWvG turtle_server
-- edit startup
-- paste: shell.run("turtle_server")
-- Reboot to check it's working
-- Run update script on startup
print("=== Turtle Server Starting ===")
print("Running update script...")
shell.run("update")
print("Update complete. Starting turtle server...")
-- Mainframe communication
local MAINFRAME_ID = nil
-- Function to discover mainframe ID via broadcast
local function discoverMainframe()
if MAINFRAME_ID then return MAINFRAME_ID end
print("Broadcasting to discover mainframe...")
rednet.broadcast("discover_mainframe")
-- Wait for responses for up to 3 seconds
local timeout = os.clock() + 3
while os.clock() < timeout do
local senderId, message = rednet.receive(0.1)
if senderId and message == "mainframe_here" then
MAINFRAME_ID = senderId
print("Discovered mainframe at ID: " .. MAINFRAME_ID)
return MAINFRAME_ID
end
end
print("No mainframe found via broadcast")
return nil
end
-- Function to report current GPS location to mainframe
local function reportLocationToMainframe()
local mainframeId = discoverMainframe()
if mainframeId then
local gpsX, gpsY, gpsZ = gps.locate()
if gpsX and gpsY and gpsZ then
local message = {
type = "location",
x = gpsX,
y = gpsY,
z = gpsZ
}
rednet.send(mainframeId, message)
print("Reported location to mainframe " .. mainframeId .. ": (" .. gpsX .. ", " .. gpsY .. ", " .. gpsZ .. ")")
else
print("Cannot report location - GPS not available")
end
else
print("Cannot report location - mainframe not available")
end
end
-- Function to open a modem on any side
local function openModem()
local sides = {"left", "right", "top", "bottom", "front", "back"}
for _, side in ipairs(sides) do
if peripheral.getType(side) == "modem" then
rednet.open(side)
return true
end
end
return false
end
-- Function to get the current GPS position
local function getCurrentPosition()
local x, y, z = gps.locate(5) -- Wait up to 5 seconds for a GPS fix
if x and y and z then
return {x = x, y = y, z = z}
else
print("Unable to determine GPS position.")
return nil
end
end
-- Function to determine the turtle's current heading
local function getHeading()
local initialPos = getCurrentPosition()
if not initialPos then return nil end
-- Try moving forward to determine heading
if turtle.forward() then
local newPos = getCurrentPosition()
turtle.back() -- Return to original position
if newPos.x > initialPos.x then
return 1 -- East
elseif newPos.x < initialPos.x then
return 3 -- West
elseif newPos.z > initialPos.z then
return 2 -- South
elseif newPos.z < initialPos.z then
return 0 -- North
end
end
-- If forward is blocked, try moving up
if turtle.up() then
turtle.down() -- Return to original position
return getHeading() -- Retry after moving up
end
-- If all directions are blocked, return nil
return nil
end
-- Function to face a specific direction
local function faceDirection(targetHeading)
local currentHeading = getHeading()
if currentHeading == nil then
print("Unable to determine current heading.")
return
end
local turns = (targetHeading - currentHeading) % 4
if turns == 1 then
turtle.turnRight()
elseif turns == 2 then
turtle.turnRight()
turtle.turnRight()
elseif turns == 3 then
turtle.turnLeft()
end
end
-- Function to move to a specific GPS location
local function goTo(x, y, z)
local currentPos = getCurrentPosition()
if not currentPos then
print("Cannot move without GPS position.")
return
end
-- Move vertically to the target y level first
while currentPos.y < y do
if not turtle.up() then turtle.digUp() end
currentPos.y = currentPos.y + 1
reportLocationToMainframe()
end
while currentPos.y > y do
if not turtle.down() then turtle.digDown() end
currentPos.y = currentPos.y - 1
reportLocationToMainframe()
end
-- Move in the x direction
if currentPos.x < x then
faceDirection(1) -- East
while currentPos.x < x do
if not turtle.forward() then turtle.dig() end
currentPos.x = currentPos.x + 1
reportLocationToMainframe()
end
elseif currentPos.x > x then
faceDirection(3) -- West
while currentPos.x > x do
if not turtle.forward() then turtle.dig() end
currentPos.x = currentPos.x - 1
reportLocationToMainframe()
end
end
-- Move in the z direction
if currentPos.z < z then
faceDirection(2) -- South
while currentPos.z < z do
if not turtle.forward() then turtle.dig() end
currentPos.z = currentPos.z + 1
reportLocationToMainframe()
end
elseif currentPos.z > z then
faceDirection(0) -- North
while currentPos.z > z do
if not turtle.forward() then turtle.dig() end
currentPos.z = currentPos.z - 1
reportLocationToMainframe()
end
end
end
-- Start the rednet server
local function startRednetServer()
if not openModem() then
print("No modem found. Please attach a modem to the turtle.")
return
end
print("Rednet server started. Listening for commands...")
-- Report initial location to mainframe
reportLocationToMainframe()
while true do
local senderId, message = rednet.receive()
print("Received command from " .. senderId .. ": " .. message)
if message == "get location" then
local pos = getCurrentPosition()
if pos then
-- Report current location to mainframe as well
reportLocationToMainframe()
rednet.send(senderId, "Current location: (" .. pos.x .. ", " .. pos.y .. ", " .. pos.z .. ")")
else
rednet.send(senderId, "Unable to determine GPS position.")
end
elseif message:match("^go to location") then
local x, y, z = message:match("go to location ([%-]?%d+) ([%-]?%d+) ([%-]?%d+)")
if x and y and z then
rednet.send(senderId, "Moving to location: (" .. x .. ", " .. y .. ", " .. z .. ")")
goTo(tonumber(x), tonumber(y), tonumber(z))
rednet.send(senderId, "Arrived at location: (" .. x .. ", " .. y .. ", " .. z .. ")")
else
rednet.send(senderId, "Invalid location format. Use: go to location <x> <y> <z>")
end
end
end
end
-- Run the server
startRednetServer()