server_update_turret_rotation.lua

local socket = require("socket")

-- create a TCP server and bind it to port 12345
local server = socket.tcp()
server:bind("*", 12345)
server:listen()

-- set the server to non-blocking mode
server:settimeout(0)

-- initialize variables for the turret angle and cursor position
local turretAngle = 0
local cursorX, cursorY = 0, 0

-- loop indefinitely
while true do
    -- accept any incoming client connections
    local client = server:accept()

    -- if a client connected, read its input
    if client then
        local input = client:receive()

        -- if the input is the escape key, exit the program
        if input == "\27" then
            break
        end

        -- otherwise, update the turret angle based on the cursor position
        if input == "up" then
            turretAngle = math.atan2(cursorY - 1, cursorX) * 180 / math.pi
        elseif input == "down" then
            turretAngle = math.atan2(cursorY + 1, cursorX) * 180 / math.pi
        elseif input == "left" then
            turretAngle = math.atan2(cursorY, cursorX - 1) * 180 / math.pi
        elseif input == "right" then
            turretAngle = math.atan2(cursorY, cursorX + 1) * 180 / math.pi
        end

        -- send the updated turret angle back to the client
        client:send(tostring(turretAngle) .. "\n")

        -- close the client connection
        client:close()
    end

    -- update the cursor position (in this example, cursorX and cursorY are updated externally)
    cursorX, cursorY = getCursorPosition()
end