starNav_goto

local function printUsage()
    print("Usage:")
    print(fs.getName(shell.getRunningProgram()).." <map_name> <x_pos> <y_pos> <z_pos> <(optional)max_distance>")
    print("<map_name> The name of the remoteMap to connect to and use.")
    print("<x_pos> <y_pos> <z_pos> The GPS coordinates you want to go to.")
    print("<(optional)max_distance> The farthest distance allowed to travel from start position.")
end

if not starNav then
    if not os.loadAPI("starNav") then
        error("could not load starNav API")
    end
end

local tArgs = {...}

if type(tArgs[1]) ~= "string" then
    printError("map_name: string expected")
    printUsage()
    return
end
starNav.setMap(tArgs[1])

for i = 2, 4 do
    if tonumber(tArgs[i]) then
        tArgs[i] = tonumber(tArgs[i])
    else
        printError("argument "..i.." must be a valid coordinate")
        printUsage()
        return
    end
end

local maxDistance
if tArgs[5] ~= nil then
    if tonumber(tArgs[5]) then
        print("setting max_distance to: ", tArgs[5])
        maxDistance = tonumber(tArgs[5])
    else
        printError("max_distance: number expected")
        printUsage()
        return
    end
end

print("going to coordinates = ", tArgs[2], ",", tArgs[3], ",", tArgs[4])
local ok, err = starNav.goto(tArgs[2], tArgs[3], tArgs[4], maxDistance)
if not ok then
    printError("navigation failed: ", err)
else
    print("succesfully navigated to coordinates")
end