ardupilot/libraries/AP_Scripting/examples/mission-load.lua

60 lines
1.5 KiB
Lua

-- Example of loading a mission from the SD card using Scripting
-- Would be trivial to select a mission based on scripting params or RC switch
local function read_mission(file_name)
-- Open file
file = assert(io.open(file_name), 'Could open :' .. file_name)
-- check header
assert(string.find(file:read('l'),'QGC WPL 110') == 1, file_name .. ': incorrect format')
-- clear any existing mission
assert(mission:clear(), 'Could not clear current mission')
-- read each line and write to mission
local item = mavlink_mission_item_int_t()
local index = 0
while true do
local data = {}
for i = 1, 12 do
data[i] = file:read('n')
if data[i] == nil then
if i == 1 then
gcs:send_text(6, 'loaded mission: ' .. file_name)
return -- got to the end of the file
else
mission:clear() -- clear part loaded mission
error('failed to read file')
end
end
end
item:seq(data[1])
item:frame(data[3])
item:command(data[4])
item:param1(data[5])
item:param2(data[6])
item:param3(data[7])
item:param4(data[8])
item:x(data[9]*10^7)
item:y(data[10]*10^7)
item:z(data[11])
if not mission:set_item(index,item) then
mission:clear() -- clear part loaded mission
error(string.format('failed to set mission item %i',index))
end
index = index + 1
end
end
function update()
read_mission('Tools/autotest/Generic_Missions/CMAC-bigloop.txt')
return
end
return update, 5000