feat: Add Live GPS Tracker for Pocket Computer with real-time location display
This commit is contained in:
MayaTheShy
270
pocketgps.lua
Normal file
270
pocketgps.lua
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@@ -0,0 +1,270 @@
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-- Live GPS Tracker for Pocket Computer
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-- Shows your current location in real-time
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local STATUS_CHANNEL = 102
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-- Setup modem
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local modem = peripheral.find("modem")
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if not modem then
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error("No wireless modem found!")
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end
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-- Equip modem if on pocket computer
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if pocket then
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pocket.equipBack()
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modem = peripheral.find("modem")
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end
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modem.open(STATUS_CHANNEL)
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local w, h = term.getSize()
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local myID = os.getComputerID()
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local currentPos = {x = 0, y = 0, z = 0}
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local lastUpdate = 0
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local turtles = {}
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-- Get GPS position
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local function updateGPS()
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local x, y, z = gps.locate(5)
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if x then
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currentPos = {x = math.floor(x), y = math.floor(y), z = math.floor(z)}
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lastUpdate = os.clock()
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return true
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end
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return false
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end
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-- Draw header
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local function drawHeader()
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term.setCursorPos(1, 1)
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term.setBackgroundColor(colors.blue)
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term.setTextColor(colors.white)
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term.clearLine()
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term.setCursorPos(math.floor((w - 14) / 2), 1)
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term.write(" GPS TRACKER ")
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end
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-- Draw position info
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local function drawPosition()
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term.setBackgroundColor(colors.black)
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term.setTextColor(colors.white)
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-- Computer ID
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term.setCursorPos(2, 3)
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term.write("Computer ID: ")
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term.setTextColor(colors.yellow)
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term.write(tostring(myID))
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-- Current coordinates
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term.setTextColor(colors.white)
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term.setCursorPos(2, 5)
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term.write("Current Position:")
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term.setCursorPos(4, 6)
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term.setTextColor(colors.red)
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term.write("X: ")
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term.setTextColor(colors.white)
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term.write(string.format("%d", currentPos.x))
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term.setCursorPos(4, 7)
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term.setTextColor(colors.green)
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term.write("Y: ")
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term.setTextColor(colors.white)
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term.write(string.format("%d", currentPos.y))
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term.setCursorPos(4, 8)
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term.setTextColor(colors.blue)
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term.write("Z: ")
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term.setTextColor(colors.white)
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term.write(string.format("%d", currentPos.z))
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-- Time since last update
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local timeSince = os.clock() - lastUpdate
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term.setCursorPos(2, 10)
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term.setTextColor(colors.gray)
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if lastUpdate > 0 then
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term.write(string.format("Updated %.1fs ago", timeSince))
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else
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term.write("No GPS fix yet...")
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end
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end
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-- Draw nearby turtles
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local function drawTurtles()
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term.setBackgroundColor(colors.black)
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term.setTextColor(colors.white)
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term.setCursorPos(2, 12)
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term.write("Nearby Turtles:")
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local line = 13
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local count = 0
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-- Sort turtles by distance
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local sortedTurtles = {}
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for id, data in pairs(turtles) do
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if data.position then
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local dx = data.position.x - currentPos.x
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local dy = data.position.y - currentPos.y
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local dz = data.position.z - currentPos.z
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local distance = math.sqrt(dx*dx + dy*dy + dz*dz)
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table.insert(sortedTurtles, {id = id, data = data, distance = distance})
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end
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end
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table.sort(sortedTurtles, function(a, b) return a.distance < b.distance end)
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-- Display up to 5 closest turtles
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for i = 1, math.min(5, #sortedTurtles) do
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local turtle = sortedTurtles[i]
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term.setCursorPos(4, line)
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term.setTextColor(colors.yellow)
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term.write(string.format("#%d", turtle.id))
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term.setTextColor(colors.white)
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term.write(string.format(" [%.1fm]", turtle.distance))
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term.setCursorPos(6, line + 1)
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term.setTextColor(colors.gray)
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term.write(string.format("(%d, %d, %d)",
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turtle.data.position.x,
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turtle.data.position.y,
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turtle.data.position.z))
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line = line + 2
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count = count + 1
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if line >= h - 2 then break end
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end
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if count == 0 then
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term.setCursorPos(4, line)
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term.setTextColor(colors.gray)
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term.write("None detected")
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end
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end
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-- Draw footer
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local function drawFooter()
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term.setCursorPos(1, h)
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term.setBackgroundColor(colors.gray)
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term.setTextColor(colors.white)
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term.clearLine()
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term.setCursorPos(2, h)
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term.write("[Q] Quit [R] Refresh")
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end
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-- Full screen refresh
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local function draw()
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term.setBackgroundColor(colors.black)
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term.clear()
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drawHeader()
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drawPosition()
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drawTurtles()
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drawFooter()
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end
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-- Handle turtle status broadcasts
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local function handleStatus(message)
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if message.id and message.id ~= myID then
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if not turtles[message.id] then
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turtles[message.id] = {}
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end
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-- Update turtle data
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if message.position then
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turtles[message.id].position = message.position
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end
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if message.status then
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turtles[message.id].status = message.status
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end
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if message.fuel then
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turtles[message.id].fuel = message.fuel
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end
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turtles[message.id].lastSeen = os.clock()
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end
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end
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-- Clean up old turtles (not seen in 30 seconds)
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local function cleanupTurtles()
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local now = os.clock()
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for id, data in pairs(turtles) do
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if data.lastSeen and (now - data.lastSeen) > 30 then
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turtles[id] = nil
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end
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end
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end
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-- Main loop
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local function main()
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print("GPS Tracker starting...")
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print("Getting initial GPS fix...")
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-- Get initial GPS position
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updateGPS()
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draw()
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local gpsTimer = os.startTimer(2) -- Update GPS every 2 seconds
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local cleanupTimer = os.startTimer(10) -- Cleanup every 10 seconds
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local drawTimer = os.startTimer(0.5) -- Redraw every 0.5 seconds
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while true do
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local event, param1, param2, param3, param4, param5 = os.pullEvent()
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if event == "timer" then
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if param1 == gpsTimer then
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updateGPS()
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gpsTimer = os.startTimer(2)
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elseif param1 == cleanupTimer then
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cleanupTurtles()
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cleanupTimer = os.startTimer(10)
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elseif param1 == drawTimer then
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draw()
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drawTimer = os.startTimer(0.5)
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end
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elseif event == "modem_message" then
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local channel = param2
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local replyChannel = param3
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local message = param4
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if channel == STATUS_CHANNEL and type(message) == "table" then
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handleStatus(message)
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end
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elseif event == "char" then
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if param1 == "q" or param1 == "Q" then
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term.setBackgroundColor(colors.black)
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term.setTextColor(colors.white)
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term.clear()
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term.setCursorPos(1, 1)
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print("GPS Tracker stopped.")
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return
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elseif param1 == "r" or param1 == "R" then
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updateGPS()
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draw()
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end
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elseif event == "mouse_click" then
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-- Check if quit button clicked (bottom bar)
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if param3 == h then
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term.setBackgroundColor(colors.black)
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term.setTextColor(colors.white)
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term.clear()
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term.setCursorPos(1, 1)
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print("GPS Tracker stopped.")
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return
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end
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end
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end
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end
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-- Run the tracker
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local success, err = pcall(main)
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if not success then
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term.setBackgroundColor(colors.black)
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term.setTextColor(colors.white)
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term.clear()
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term.setCursorPos(1, 1)
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print("Error: " .. tostring(err))
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end
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