Applevangelist 3e6f25f17c #UTILS
* Added UTILS.PrintTableToLog()
2023-05-26 08:28:08 +02:00

2935 lines
91 KiB
Lua

--- **Utilities** - Derived utilities taken from the MIST framework, added helpers from the MOOSE community.
--
-- ### Authors:
--
-- * Grimes : Design & Programming of the MIST framework.
--
-- ### Contributions:
--
-- * FlightControl : Rework to OO framework.
-- * And many more
--
-- @module Utilities.Utils
-- @image MOOSE.JPG
--- @type SMOKECOLOR
-- @field Green
-- @field Red
-- @field White
-- @field Orange
-- @field Blue
SMOKECOLOR = trigger.smokeColor -- #SMOKECOLOR
--- @type FLARECOLOR
-- @field Green
-- @field Red
-- @field White
-- @field Yellow
FLARECOLOR = trigger.flareColor -- #FLARECOLOR
--- Big smoke preset enum.
-- @type BIGSMOKEPRESET
BIGSMOKEPRESET = {
SmallSmokeAndFire=1,
MediumSmokeAndFire=2,
LargeSmokeAndFire=3,
HugeSmokeAndFire=4,
SmallSmoke=5,
MediumSmoke=6,
LargeSmoke=7,
HugeSmoke=8,
}
--- DCS map as returned by env.mission.theatre.
-- @type DCSMAP
-- @field #string Caucasus Caucasus map.
-- @field #string Normandy Normandy map.
-- @field #string NTTR Nevada Test and Training Range map.
-- @field #string PersianGulf Persian Gulf map.
-- @field #string TheChannel The Channel map.
-- @field #string Syria Syria map.
-- @field #string MarianaIslands Mariana Islands map.
-- @field #string Falklands South Atlantic map.
DCSMAP = {
Caucasus="Caucasus",
NTTR="Nevada",
Normandy="Normandy",
PersianGulf="PersianGulf",
TheChannel="TheChannel",
Syria="Syria",
MarianaIslands="MarianaIslands",
Falklands="Falklands",
}
--- See [DCS_enum_callsigns](https://wiki.hoggitworld.com/view/DCS_enum_callsigns)
-- @type CALLSIGN
CALLSIGN={
-- Aircraft
Aircraft={
Enfield=1,
Springfield=2,
Uzi=3,
Colt=4,
Dodge=5,
Ford=6,
Chevy=7,
Pontiac=8,
-- A-10A or A-10C
Hawg=9,
Boar=10,
Pig=11,
Tusk=12,
},
-- AWACS
AWACS={
Overlord=1,
Magic=2,
Wizard=3,
Focus=4,
Darkstar=5,
},
-- Tanker
Tanker={
Texaco=1,
Arco=2,
Shell=3,
},
-- JTAC
JTAC={
Axeman=1,
Darknight=2,
Warrior=3,
Pointer=4,
Eyeball=5,
Moonbeam=6,
Whiplash=7,
Finger=8,
Pinpoint=9,
Ferret=10,
Shaba=11,
Playboy=12,
Hammer=13,
Jaguar=14,
Deathstar=15,
Anvil=16,
Firefly=17,
Mantis=18,
Badger=19,
},
-- FARP
FARP={
London=1,
Dallas=2,
Paris=3,
Moscow=4,
Berlin=5,
Rome=6,
Madrid=7,
Warsaw=8,
Dublin=9,
Perth=10,
},
F16={
Viper=9,
Venom=10,
Lobo=11,
Cowboy=12,
Python=13,
Rattler=14,
Panther=15,
Wolf=16,
Weasel=17,
Wild=18,
Ninja=19,
Jedi=20,
},
F18={
Hornet=9,
Squid=10,
Ragin=11,
Roman=12,
Sting=13,
Jury=14,
Jokey=15,
Ram=16,
Hawk=17,
Devil=18,
Check=19,
Snake=20,
},
F15E={
Dude=9,
Thud=10,
Gunny=11,
Trek=12,
Sniper=13,
Sled=14,
Best=15,
Jazz=16,
Rage=17,
Tahoe=18,
},
B1B={
Bone=9,
Dark=10,
Vader=11
},
B52={
Buff=9,
Dump=10,
Kenworth=11,
},
TransportAircraft={
Heavy=9,
Trash=10,
Cargo=11,
Ascot=12,
},
} --#CALLSIGN
--- Utilities static class.
-- @type UTILS
-- @field #number _MarkID Marker index counter. Running number when marker is added.
UTILS = {
_MarkID = 1
}
--- Function to infer instance of an object
--
-- ### Examples:
--
-- * UTILS.IsInstanceOf( 'some text', 'string' ) will return true
-- * UTILS.IsInstanceOf( some_function, 'function' ) will return true
-- * UTILS.IsInstanceOf( 10, 'number' ) will return true
-- * UTILS.IsInstanceOf( false, 'boolean' ) will return true
-- * UTILS.IsInstanceOf( nil, 'nil' ) will return true
--
-- * UTILS.IsInstanceOf( ZONE:New( 'some zone', ZONE ) will return true
-- * UTILS.IsInstanceOf( ZONE:New( 'some zone', 'ZONE' ) will return true
-- * UTILS.IsInstanceOf( ZONE:New( 'some zone', 'zone' ) will return true
-- * UTILS.IsInstanceOf( ZONE:New( 'some zone', 'BASE' ) will return true
--
-- * UTILS.IsInstanceOf( ZONE:New( 'some zone', 'GROUP' ) will return false
--
--
-- @param object is the object to be evaluated
-- @param className is the name of the class to evaluate (can be either a string or a Moose class)
-- @return #boolean
UTILS.IsInstanceOf = function( object, className )
-- Is className NOT a string ?
if not type( className ) == 'string' then
-- Is className a Moose class ?
if type( className ) == 'table' and className.IsInstanceOf ~= nil then
-- Get the name of the Moose class as a string
className = className.ClassName
-- className is neither a string nor a Moose class, throw an error
else
-- I'm not sure if this should take advantage of MOOSE logging function, or throw an error for pcall
local err_str = 'className parameter should be a string; parameter received: '..type( className )
return false
-- error( err_str )
end
end
-- Is the object a Moose class instance ?
if type( object ) == 'table' and object.IsInstanceOf ~= nil then
-- Use the IsInstanceOf method of the BASE class
return object:IsInstanceOf( className )
else
-- If the object is not an instance of a Moose class, evaluate against lua basic data types
local basicDataTypes = { 'string', 'number', 'function', 'boolean', 'nil', 'table' }
for _, basicDataType in ipairs( basicDataTypes ) do
if className == basicDataType then
return type( object ) == basicDataType
end
end
end
-- Check failed
return false
end
--- Deep copy a table. See http://lua-users.org/wiki/CopyTable
-- @param #table object The input table.
-- @return #table Copy of the input table.
UTILS.DeepCopy = function(object)
local lookup_table = {}
-- Copy function.
local function _copy(object)
if type(object) ~= "table" then
return object
elseif lookup_table[object] then
return lookup_table[object]
end
local new_table = {}
lookup_table[object] = new_table
for index, value in pairs(object) do
new_table[_copy(index)] = _copy(value)
end
return setmetatable(new_table, getmetatable(object))
end
local objectreturn = _copy(object)
return objectreturn
end
--- Porting in Slmod's serialize_slmod2.
-- @param #table tbl Input table.
UTILS.OneLineSerialize = function( tbl ) -- serialization of a table all on a single line, no comments, made to replace old get_table_string function
lookup_table = {}
local function _Serialize( tbl )
if type(tbl) == 'table' then --function only works for tables!
if lookup_table[tbl] then
return lookup_table[object]
end
local tbl_str = {}
lookup_table[tbl] = tbl_str
tbl_str[#tbl_str + 1] = '{'
for ind,val in pairs(tbl) do -- serialize its fields
local ind_str = {}
if type(ind) == "number" then
ind_str[#ind_str + 1] = '['
ind_str[#ind_str + 1] = tostring(ind)
ind_str[#ind_str + 1] = ']='
else --must be a string
ind_str[#ind_str + 1] = '['
ind_str[#ind_str + 1] = routines.utils.basicSerialize(ind)
ind_str[#ind_str + 1] = ']='
end
local val_str = {}
if ((type(val) == 'number') or (type(val) == 'boolean')) then
val_str[#val_str + 1] = tostring(val)
val_str[#val_str + 1] = ','
tbl_str[#tbl_str + 1] = table.concat(ind_str)
tbl_str[#tbl_str + 1] = table.concat(val_str)
elseif type(val) == 'string' then
val_str[#val_str + 1] = routines.utils.basicSerialize(val)
val_str[#val_str + 1] = ','
tbl_str[#tbl_str + 1] = table.concat(ind_str)
tbl_str[#tbl_str + 1] = table.concat(val_str)
elseif type(val) == 'nil' then -- won't ever happen, right?
val_str[#val_str + 1] = 'nil,'
tbl_str[#tbl_str + 1] = table.concat(ind_str)
tbl_str[#tbl_str + 1] = table.concat(val_str)
elseif type(val) == 'table' then
if ind == "__index" then
-- tbl_str[#tbl_str + 1] = "__index"
-- tbl_str[#tbl_str + 1] = ',' --I think this is right, I just added it
else
val_str[#val_str + 1] = _Serialize(val)
val_str[#val_str + 1] = ',' --I think this is right, I just added it
tbl_str[#tbl_str + 1] = table.concat(ind_str)
tbl_str[#tbl_str + 1] = table.concat(val_str)
end
elseif type(val) == 'function' then
tbl_str[#tbl_str + 1] = "f() " .. tostring(ind)
tbl_str[#tbl_str + 1] = ',' --I think this is right, I just added it
else
env.info('unable to serialize value type ' .. routines.utils.basicSerialize(type(val)) .. ' at index ' .. tostring(ind))
env.info( debug.traceback() )
end
end
tbl_str[#tbl_str + 1] = '}'
return table.concat(tbl_str)
else
return tostring(tbl)
end
end
local objectreturn = _Serialize(tbl)
return objectreturn
end
--porting in Slmod's "safestring" basic serialize
UTILS.BasicSerialize = function(s)
if s == nil then
return "\"\""
else
if ((type(s) == 'number') or (type(s) == 'boolean') or (type(s) == 'function') or (type(s) == 'table') or (type(s) == 'userdata') ) then
return tostring(s)
elseif type(s) == 'string' then
s = string.format('%q', s)
return s
end
end
end
function UTILS.PrintTableToLog(table, indent)
if not table then
BASE:E("No table passed!")
return
end
if not indent then indent = 0 end
for k, v in pairs(table) do
if type(v) == "table" then
BASE:I(string.rep(" ", indent) .. tostring(k) .. " = {")
UTILS.PrintTableToLog(v, indent + 1)
BASE:I(string.rep(" ", indent) .. "}")
else
BASE:I(string.rep(" ", indent) .. tostring(k) .. " = " .. tostring(v))
end
end
end
UTILS.ToDegree = function(angle)
return angle*180/math.pi
end
UTILS.ToRadian = function(angle)
return angle*math.pi/180
end
UTILS.MetersToNM = function(meters)
return meters/1852
end
UTILS.KiloMetersToNM = function(kilometers)
return kilometers/1852*1000
end
UTILS.MetersToSM = function(meters)
return meters/1609.34
end
UTILS.KiloMetersToSM = function(kilometers)
return kilometers/1609.34*1000
end
UTILS.MetersToFeet = function(meters)
return meters/0.3048
end
UTILS.KiloMetersToFeet = function(kilometers)
return kilometers/0.3048*1000
end
UTILS.NMToMeters = function(NM)
return NM*1852
end
UTILS.NMToKiloMeters = function(NM)
return NM*1852/1000
end
UTILS.FeetToMeters = function(feet)
return feet*0.3048
end
UTILS.KnotsToKmph = function(knots)
return knots * 1.852
end
UTILS.KmphToKnots = function(knots)
return knots / 1.852
end
UTILS.KmphToMps = function( kmph )
return kmph / 3.6
end
UTILS.MpsToKmph = function( mps )
return mps * 3.6
end
UTILS.MiphToMps = function( miph )
return miph * 0.44704
end
--- Convert meters per second to miles per hour.
-- @param #number mps Speed in m/s.
-- @return #number Speed in miles per hour.
UTILS.MpsToMiph = function( mps )
return mps / 0.44704
end
--- Convert meters per second to knots.
-- @param #number mps Speed in m/s.
-- @return #number Speed in knots.
UTILS.MpsToKnots = function( mps )
return mps * 1.94384 --3600 / 1852
end
--- Convert knots to meters per second.
-- @param #number knots Speed in knots.
-- @return #number Speed in m/s.
UTILS.KnotsToMps = function( knots )
if type(knots) == "number" then
return knots / 1.94384 --* 1852 / 3600
else
return 0
end
end
--- Convert temperature from Celsius to Fahrenheit.
-- @param #number Celcius Temperature in degrees Celsius.
-- @return #number Temperature in degrees Fahrenheit.
UTILS.CelsiusToFahrenheit = function( Celcius )
return Celcius * 9/5 + 32
end
--- Convert pressure from hecto Pascal (hPa) to inches of mercury (inHg).
-- @param #number hPa Pressure in hPa.
-- @return #number Pressure in inHg.
UTILS.hPa2inHg = function( hPa )
return hPa * 0.0295299830714
end
--- Convert indicated airspeed (IAS) to true airspeed (TAS) for a given altitude above main sea level.
-- The conversion is based on the approximation that TAS is ~2% higher than IAS with every 1000 ft altitude above sea level.
-- @param #number ias Indicated air speed in any unit (m/s, km/h, knots, ...)
-- @param #number altitude Altitude above main sea level in meters.
-- @param #number oatcorr (Optional) Outside air temperature correction factor. Default 0.017.
-- @return #number True airspeed in the same unit the IAS has been given.
UTILS.IasToTas = function( ias, altitude, oatcorr )
oatcorr=oatcorr or 0.017
local tas=ias + (ias * oatcorr * UTILS.MetersToFeet(altitude) / 1000)
return tas
end
--- Convert true airspeed (TAS) to indicated airspeed (IAS) for a given altitude above main sea level.
-- The conversion is based on the approximation that TAS is ~2% higher than IAS with every 1000 ft altitude above sea level.
-- @param #number tas True air speed in any unit (m/s, km/h, knots, ...)
-- @param #number altitude Altitude above main sea level in meters.
-- @param #number oatcorr (Optional) Outside air temperature correction factor. Default 0.017.
-- @return #number Indicated airspeed in the same unit the TAS has been given.
UTILS.TasToIas = function( tas, altitude, oatcorr )
oatcorr=oatcorr or 0.017
local ias=tas/(1+oatcorr*UTILS.MetersToFeet(altitude)/1000)
return ias
end
--- Convert knots to altitude corrected KIAS, e.g. for tankers.
-- @param #number knots Speed in knots.
-- @param #number altitude Altitude in feet
-- @return #number Corrected KIAS
UTILS.KnotsToAltKIAS = function( knots, altitude )
return (knots * 0.018 * (altitude / 1000)) + knots
end
--- Convert pressure from hecto Pascal (hPa) to millimeters of mercury (mmHg).
-- @param #number hPa Pressure in hPa.
-- @return #number Pressure in mmHg.
UTILS.hPa2mmHg = function( hPa )
return hPa * 0.7500615613030
end
--- Convert kilo gramms (kg) to pounds (lbs).
-- @param #number kg Mass in kg.
-- @return #number Mass in lbs.
UTILS.kg2lbs = function( kg )
return kg * 2.20462
end
--[[acc:
in DM: decimal point of minutes.
In DMS: decimal point of seconds.
position after the decimal of the least significant digit:
So:
42.32 - acc of 2.
]]
UTILS.tostringLL = function( lat, lon, acc, DMS)
local latHemi, lonHemi
if lat > 0 then
latHemi = 'N'
else
latHemi = 'S'
end
if lon > 0 then
lonHemi = 'E'
else
lonHemi = 'W'
end
lat = math.abs(lat)
lon = math.abs(lon)
local latDeg = math.floor(lat)
local latMin = (lat - latDeg)*60
local lonDeg = math.floor(lon)
local lonMin = (lon - lonDeg)*60
if DMS then -- degrees, minutes, and seconds.
local oldLatMin = latMin
latMin = math.floor(latMin)
local latSec = UTILS.Round((oldLatMin - latMin)*60, acc)
local oldLonMin = lonMin
lonMin = math.floor(lonMin)
local lonSec = UTILS.Round((oldLonMin - lonMin)*60, acc)
if latSec == 60 then
latSec = 0
latMin = latMin + 1
end
if lonSec == 60 then
lonSec = 0
lonMin = lonMin + 1
end
local secFrmtStr -- create the formatting string for the seconds place
secFrmtStr = '%02d'
if acc <= 0 then -- no decimal place.
secFrmtStr = '%02d'
else
local width = 3 + acc -- 01.310 - that's a width of 6, for example. Acc is limited to 2 for DMS!
secFrmtStr = '%0' .. width .. '.' .. acc .. 'f'
end
-- 024° 23' 12"N or 024° 23' 12.03"N
return string.format('%03d°', latDeg)..string.format('%02d', latMin)..'\''..string.format(secFrmtStr, latSec)..'"'..latHemi..' '
.. string.format('%03d°', lonDeg)..string.format('%02d', lonMin)..'\''..string.format(secFrmtStr, lonSec)..'"'..lonHemi
else -- degrees, decimal minutes.
latMin = UTILS.Round(latMin, acc)
lonMin = UTILS.Round(lonMin, acc)
if latMin == 60 then
latMin = 0
latDeg = latDeg + 1
end
if lonMin == 60 then
lonMin = 0
lonDeg = lonDeg + 1
end
local minFrmtStr -- create the formatting string for the minutes place
if acc <= 0 then -- no decimal place.
minFrmtStr = '%02d'
else
local width = 3 + acc -- 01.310 - that's a width of 6, for example.
minFrmtStr = '%0' .. width .. '.' .. acc .. 'f'
end
-- 024 23'N or 024 23.123'N
return string.format('%03d°', latDeg) .. ' ' .. string.format(minFrmtStr, latMin) .. '\'' .. latHemi .. ' '
.. string.format('%03d°', lonDeg) .. ' ' .. string.format(minFrmtStr, lonMin) .. '\'' .. lonHemi
end
end
-- acc- the accuracy of each easting/northing. 0, 1, 2, 3, 4, or 5.
UTILS.tostringMGRS = function(MGRS, acc) --R2.1
if acc <= 0 then
return MGRS.UTMZone .. ' ' .. MGRS.MGRSDigraph
else
if acc > 5 then acc = 5 end
-- Test if Easting/Northing have less than 4 digits.
--MGRS.Easting=123 -- should be 00123
--MGRS.Northing=5432 -- should be 05432
-- Truncate rather than round MGRS grid!
local Easting=tostring(MGRS.Easting)
local Northing=tostring(MGRS.Northing)
-- Count number of missing digits. Easting/Northing should have 5 digits. However, it is passed as a number. Therefore, any leading zeros would not be displayed by lua.
local nE=5-string.len(Easting)
local nN=5-string.len(Northing)
-- Get leading zeros (if any).
for i=1,nE do Easting="0"..Easting end
for i=1,nN do Northing="0"..Northing end
-- Return MGRS string.
return string.format("%s %s %s %s", MGRS.UTMZone, MGRS.MGRSDigraph, string.sub(Easting, 1, acc), string.sub(Northing, 1, acc))
end
end
--- From http://lua-users.org/wiki/SimpleRound
-- use negative idp for rounding ahead of decimal place, positive for rounding after decimal place
function UTILS.Round( num, idp )
local mult = 10 ^ ( idp or 0 )
return math.floor( num * mult + 0.5 ) / mult
end
--- Porting in Slmod's dostring - execute a string as LUA code with error handling.
-- @param #string s The code as string to be executed
-- @return #boolean success If true, code was successfully executed, else false
-- @return #string Outcome Code outcome if successful or error string if not successful
function UTILS.DoString( s )
local f, err = loadstring( s )
if f then
return true, f()
else
return false, err
end
end
--- Here is a customized version of pairs, which I called spairs because it iterates over the table in a sorted order.
-- @param #table t The table
-- @param #string order (Optional) The sorting function
-- @return #string key The index key
-- @return #string value The value at the indexed key
-- @usage
-- for key,value in UTILS.spairs(mytable) do
-- -- your code here
-- end
function UTILS.spairs( t, order )
-- collect the keys
local keys = {}
for k in pairs(t) do keys[#keys+1] = k end
-- if order function given, sort by it by passing the table and keys a, b,
-- otherwise just sort the keys
if order then
table.sort(keys, function(a,b) return order(t, a, b) end)
else
table.sort(keys)
end
-- return the iterator function
local i = 0
return function()
i = i + 1
if keys[i] then
return keys[i], t[keys[i]]
end
end
end
--- Here is a customized version of pairs, which I called kpairs because it iterates over the table in a sorted order, based on a function that will determine the keys as reference first.
-- @param #table t The table
-- @param #string getkey The function to determine the keys for sorting
-- @param #string order (Optional) The sorting function itself
-- @return #string key The index key
-- @return #string value The value at the indexed key
-- @usage
-- for key,value in UTILS.kpairs(mytable, getkeyfunc) do
-- -- your code here
-- end
function UTILS.kpairs( t, getkey, order )
-- collect the keys
local keys = {}
local keyso = {}
for k, o in pairs(t) do keys[#keys+1] = k keyso[#keyso+1] = getkey( o ) end
-- if order function given, sort by it by passing the table and keys a, b,
-- otherwise just sort the keys
if order then
table.sort(keys, function(a,b) return order(t, a, b) end)
else
table.sort(keys)
end
-- return the iterator function
local i = 0
return function()
i = i + 1
if keys[i] then
return keyso[i], t[keys[i]]
end
end
end
--- Here is a customized version of pairs, which I called rpairs because it iterates over the table in a random order.
-- @param #table t The table
-- @return #string key The index key
-- @return #string value The value at the indexed key
-- @usage
-- for key,value in UTILS.rpairs(mytable) do
-- -- your code here
-- end
function UTILS.rpairs( t )
-- collect the keys
local keys = {}
for k in pairs(t) do keys[#keys+1] = k end
local random = {}
local j = #keys
for i = 1, j do
local k = math.random( 1, #keys )
random[i] = keys[k]
table.remove( keys, k )
end
-- return the iterator function
local i = 0
return function()
i = i + 1
if random[i] then
return random[i], t[random[i]]
end
end
end
-- get a new mark ID for markings
function UTILS.GetMarkID()
UTILS._MarkID = UTILS._MarkID + 1
return UTILS._MarkID
end
--- Remove an object (marker, circle, arrow, text, quad, ...) on the F10 map.
-- @param #number MarkID Unique ID of the object.
-- @param #number Delay (Optional) Delay in seconds before the mark is removed.
function UTILS.RemoveMark(MarkID, Delay)
if Delay and Delay>0 then
TIMER:New(UTILS.RemoveMark, MarkID):Start(Delay)
else
if MarkID then
trigger.action.removeMark(MarkID)
end
end
end
-- Test if a Vec2 is in a radius of another Vec2
function UTILS.IsInRadius( InVec2, Vec2, Radius )
local InRadius = ( ( InVec2.x - Vec2.x ) ^2 + ( InVec2.y - Vec2.y ) ^2 ) ^ 0.5 <= Radius
return InRadius
end
-- Test if a Vec3 is in the sphere of another Vec3
function UTILS.IsInSphere( InVec3, Vec3, Radius )
local InSphere = ( ( InVec3.x - Vec3.x ) ^2 + ( InVec3.y - Vec3.y ) ^2 + ( InVec3.z - Vec3.z ) ^2 ) ^ 0.5 <= Radius
return InSphere
end
--- Beaufort scale: returns Beaufort number and wind description as a function of wind speed in m/s.
-- @param #number speed Wind speed in m/s.
-- @return #number Beaufort number.
-- @return #string Beauford wind description.
function UTILS.BeaufortScale(speed)
local bn=nil
local bd=nil
if speed<0.51 then
bn=0
bd="Calm"
elseif speed<2.06 then
bn=1
bd="Light Air"
elseif speed<3.60 then
bn=2
bd="Light Breeze"
elseif speed<5.66 then
bn=3
bd="Gentle Breeze"
elseif speed<8.23 then
bn=4
bd="Moderate Breeze"
elseif speed<11.32 then
bn=5
bd="Fresh Breeze"
elseif speed<14.40 then
bn=6
bd="Strong Breeze"
elseif speed<17.49 then
bn=7
bd="Moderate Gale"
elseif speed<21.09 then
bn=8
bd="Fresh Gale"
elseif speed<24.69 then
bn=9
bd="Strong Gale"
elseif speed<28.81 then
bn=10
bd="Storm"
elseif speed<32.92 then
bn=11
bd="Violent Storm"
else
bn=12
bd="Hurricane"
end
return bn,bd
end
--- Split string at seperators. C.f. [split-string-in-lua](http://stackoverflow.com/questions/1426954/split-string-in-lua).
-- @param #string str Sting to split.
-- @param #string sep Speparator for split.
-- @return #table Split text.
function UTILS.Split(str, sep)
local result = {}
local regex = ("([^%s]+)"):format(sep)
for each in str:gmatch(regex) do
table.insert(result, each)
end
return result
end
--- Get a table of all characters in a string.
-- @param #string str Sting.
-- @return #table Individual characters.
function UTILS.GetCharacters(str)
local chars={}
for i=1,#str do
local c=str:sub(i,i)
table.insert(chars, c)
end
return chars
end
--- Convert time in seconds to hours, minutes and seconds.
-- @param #number seconds Time in seconds, e.g. from timer.getAbsTime() function.
-- @param #boolean short (Optional) If true, use short output, i.e. (HH:)MM:SS without day.
-- @return #string Time in format Hours:Minutes:Seconds+Days (HH:MM:SS+D).
function UTILS.SecondsToClock(seconds, short)
-- Nil check.
if seconds==nil then
return nil
end
-- Seconds
local seconds = tonumber(seconds)
-- Seconds of this day.
local _seconds=seconds%(60*60*24)
if seconds<0 then
return nil
else
local hours = string.format("%02.f", math.floor(_seconds/3600))
local mins = string.format("%02.f", math.floor(_seconds/60 - (hours*60)))
local secs = string.format("%02.f", math.floor(_seconds - hours*3600 - mins *60))
local days = string.format("%d", seconds/(60*60*24))
local clock=hours..":"..mins..":"..secs.."+"..days
if short then
if hours=="00" then
--clock=mins..":"..secs
clock=hours..":"..mins..":"..secs
else
clock=hours..":"..mins..":"..secs
end
end
return clock
end
end
--- Seconds of today.
-- @return #number Seconds passed since last midnight.
function UTILS.SecondsOfToday()
-- Time in seconds.
local time=timer.getAbsTime()
-- Short format without days since mission start.
local clock=UTILS.SecondsToClock(time, true)
-- Time is now the seconds passed since last midnight.
return UTILS.ClockToSeconds(clock)
end
--- Cound seconds until next midnight.
-- @return #number Seconds to midnight.
function UTILS.SecondsToMidnight()
return 24*60*60-UTILS.SecondsOfToday()
end
--- Convert clock time from hours, minutes and seconds to seconds.
-- @param #string clock String of clock time. E.g., "06:12:35" or "5:1:30+1". Format is (H)H:(M)M:((S)S)(+D) H=Hours, M=Minutes, S=Seconds, D=Days.
-- @return #number Seconds. Corresponds to what you cet from timer.getAbsTime() function.
function UTILS.ClockToSeconds(clock)
-- Nil check.
if clock==nil then
return nil
end
-- Seconds init.
local seconds=0
-- Split additional days.
local dsplit=UTILS.Split(clock, "+")
-- Convert days to seconds.
if #dsplit>1 then
seconds=seconds+tonumber(dsplit[2])*60*60*24
end
-- Split hours, minutes, seconds
local tsplit=UTILS.Split(dsplit[1], ":")
-- Get time in seconds
local i=1
for _,time in ipairs(tsplit) do
if i==1 then
-- Hours
seconds=seconds+tonumber(time)*60*60
elseif i==2 then
-- Minutes
seconds=seconds+tonumber(time)*60
elseif i==3 then
-- Seconds
seconds=seconds+tonumber(time)
end
i=i+1
end
return seconds
end
--- Display clock and mission time on screen as a message to all.
-- @param #number duration Duration in seconds how long the time is displayed. Default is 5 seconds.
function UTILS.DisplayMissionTime(duration)
duration=duration or 5
local Tnow=timer.getAbsTime()
local mission_time=Tnow-timer.getTime0()
local mission_time_minutes=mission_time/60
local mission_time_seconds=mission_time%60
local local_time=UTILS.SecondsToClock(Tnow)
local text=string.format("Time: %s - %02d:%02d", local_time, mission_time_minutes, mission_time_seconds)
MESSAGE:New(text, duration):ToAll()
end
--- Replace illegal characters [<>|/?*:\\] in a string.
-- @param #string Text Input text.
-- @param #string ReplaceBy Replace illegal characters by this character or string. Default underscore "_".
-- @return #string The input text with illegal chars replaced.
function UTILS.ReplaceIllegalCharacters(Text, ReplaceBy)
ReplaceBy=ReplaceBy or "_"
local text=Text:gsub("[<>|/?*:\\]", ReplaceBy)
return text
end
--- Generate a Gaussian pseudo-random number.
-- @param #number x0 Expectation value of distribution.
-- @param #number sigma (Optional) Standard deviation. Default 10.
-- @param #number xmin (Optional) Lower cut-off value.
-- @param #number xmax (Optional) Upper cut-off value.
-- @param #number imax (Optional) Max number of tries to get a value between xmin and xmax (if specified). Default 100.
-- @return #number Gaussian random number.
function UTILS.RandomGaussian(x0, sigma, xmin, xmax, imax)
-- Standard deviation. Default 10 if not given.
sigma=sigma or 10
-- Max attempts.
imax=imax or 100
local r
local gotit=false
local i=0
while not gotit do
-- Uniform numbers in [0,1). We need two.
local x1=math.random()
local x2=math.random()
-- Transform to Gaussian exp(-(x-x0)°/(2*sigma°).
r = math.sqrt(-2*sigma*sigma * math.log(x1)) * math.cos(2*math.pi * x2) + x0
i=i+1
if (r>=xmin and r<=xmax) or i>imax then
gotit=true
end
end
return r
end
--- Randomize a value by a certain amount.
-- @param #number value The value which should be randomized
-- @param #number fac Randomization factor.
-- @param #number lower (Optional) Lower limit of the returned value.
-- @param #number upper (Optional) Upper limit of the returned value.
-- @return #number Randomized value.
-- @usage UTILS.Randomize(100, 0.1) returns a value between 90 and 110, i.e. a plus/minus ten percent variation.
-- @usage UTILS.Randomize(100, 0.5, nil, 120) returns a value between 50 and 120, i.e. a plus/minus fivty percent variation with upper bound 120.
function UTILS.Randomize(value, fac, lower, upper)
local min
if lower then
min=math.max(value-value*fac, lower)
else
min=value-value*fac
end
local max
if upper then
max=math.min(value+value*fac, upper)
else
max=value+value*fac
end
local r=math.random(min, max)
return r
end
--- Calculate the [dot product](https://en.wikipedia.org/wiki/Dot_product) of two vectors. The result is a number.
-- @param DCS#Vec3 a Vector in 3D with x, y, z components.
-- @param DCS#Vec3 b Vector in 3D with x, y, z components.
-- @return #number Scalar product of the two vectors a*b.
function UTILS.VecDot(a, b)
return a.x*b.x + a.y*b.y + a.z*b.z
end
--- Calculate the [dot product](https://en.wikipedia.org/wiki/Dot_product) of two 2D vectors. The result is a number.
-- @param DCS#Vec2 a Vector in 2D with x, y components.
-- @param DCS#Vec2 b Vector in 2D with x, y components.
-- @return #number Scalar product of the two vectors a*b.
function UTILS.Vec2Dot(a, b)
return a.x*b.x + a.y*b.y
end
--- Calculate the [euclidean norm](https://en.wikipedia.org/wiki/Euclidean_distance) (length) of a 3D vector.
-- @param DCS#Vec3 a Vector in 3D with x, y, z components.
-- @return #number Norm of the vector.
function UTILS.VecNorm(a)
return math.sqrt(UTILS.VecDot(a, a))
end
--- Calculate the [euclidean norm](https://en.wikipedia.org/wiki/Euclidean_distance) (length) of a 2D vector.
-- @param DCS#Vec2 a Vector in 2D with x, y components.
-- @return #number Norm of the vector.
function UTILS.Vec2Norm(a)
return math.sqrt(UTILS.Vec2Dot(a, a))
end
--- Calculate the distance between two 2D vectors.
-- @param DCS#Vec2 a Vector in 2D with x, y components.
-- @param DCS#Vec2 b Vector in 2D with x, y components.
-- @return #number Distance between the vectors.
function UTILS.VecDist2D(a, b)
local d = math.huge
if (not a) or (not b) then return d end
local c={x=b.x-a.x, y=b.y-a.y}
d=math.sqrt(c.x*c.x+c.y*c.y)
return d
end
--- Calculate the distance between two 3D vectors.
-- @param DCS#Vec3 a Vector in 3D with x, y, z components.
-- @param DCS#Vec3 b Vector in 3D with x, y, z components.
-- @return #number Distance between the vectors.
function UTILS.VecDist3D(a, b)
local d = math.huge
if (not a) or (not b) then return d end
local c={x=b.x-a.x, y=b.y-a.y, z=b.z-a.z}
d=math.sqrt(UTILS.VecDot(c, c))
return d
end
--- Calculate the [cross product](https://en.wikipedia.org/wiki/Cross_product) of two 3D vectors. The result is a 3D vector.
-- @param DCS#Vec3 a Vector in 3D with x, y, z components.
-- @param DCS#Vec3 b Vector in 3D with x, y, z components.
-- @return DCS#Vec3 Vector
function UTILS.VecCross(a, b)
return {x=a.y*b.z - a.z*b.y, y=a.z*b.x - a.x*b.z, z=a.x*b.y - a.y*b.x}
end
--- Calculate the difference between two 3D vectors by substracting the x,y,z components from each other.
-- @param DCS#Vec3 a Vector in 3D with x, y, z components.
-- @param DCS#Vec3 b Vector in 3D with x, y, z components.
-- @return DCS#Vec3 Vector c=a-b with c(i)=a(i)-b(i), i=x,y,z.
function UTILS.VecSubstract(a, b)
return {x=a.x-b.x, y=a.y-b.y, z=a.z-b.z}
end
--- Calculate the difference between two 2D vectors by substracting the x,y components from each other.
-- @param DCS#Vec2 a Vector in 2D with x, y components.
-- @param DCS#Vec2 b Vector in 2D with x, y components.
-- @return DCS#Vec2 Vector c=a-b with c(i)=a(i)-b(i), i=x,y.
function UTILS.Vec2Substract(a, b)
return {x=a.x-b.x, y=a.y-b.y}
end
--- Calculate the total vector of two 3D vectors by adding the x,y,z components of each other.
-- @param DCS#Vec3 a Vector in 3D with x, y, z components.
-- @param DCS#Vec3 b Vector in 3D with x, y, z components.
-- @return DCS#Vec3 Vector c=a+b with c(i)=a(i)+b(i), i=x,y,z.
function UTILS.VecAdd(a, b)
return {x=a.x+b.x, y=a.y+b.y, z=a.z+b.z}
end
--- Calculate the total vector of two 2D vectors by adding the x,y components of each other.
-- @param DCS#Vec2 a Vector in 2D with x, y components.
-- @param DCS#Vec2 b Vector in 2D with x, y components.
-- @return DCS#Vec2 Vector c=a+b with c(i)=a(i)+b(i), i=x,y.
function UTILS.Vec2Add(a, b)
return {x=a.x+b.x, y=a.y+b.y}
end
--- Calculate the angle between two 3D vectors.
-- @param DCS#Vec3 a Vector in 3D with x, y, z components.
-- @param DCS#Vec3 b Vector in 3D with x, y, z components.
-- @return #number Angle alpha between and b in degrees. alpha=acos(a*b)/(|a||b|), (* denotes the dot product).
function UTILS.VecAngle(a, b)
local cosalpha=UTILS.VecDot(a,b)/(UTILS.VecNorm(a)*UTILS.VecNorm(b))
local alpha=0
if cosalpha>=0.9999999999 then --acos(1) is not defined.
alpha=0
elseif cosalpha<=-0.999999999 then --acos(-1) is not defined.
alpha=math.pi
else
alpha=math.acos(cosalpha)
end
return math.deg(alpha)
end
--- Calculate "heading" of a 3D vector in the X-Z plane.
-- @param DCS#Vec3 a Vector in 3D with x, y, z components.
-- @return #number Heading in degrees in [0,360).
function UTILS.VecHdg(a)
local h=math.deg(math.atan2(a.z, a.x))
if h<0 then
h=h+360
end
return h
end
--- Calculate "heading" of a 2D vector in the X-Y plane.
-- @param DCS#Vec2 a Vector in 2D with x, y components.
-- @return #number Heading in degrees in [0,360).
function UTILS.Vec2Hdg(a)
local h=math.deg(math.atan2(a.y, a.x))
if h<0 then
h=h+360
end
return h
end
--- Calculate the difference between two "heading", i.e. angles in [0,360) deg.
-- @param #number h1 Heading one.
-- @param #number h2 Heading two.
-- @return #number Heading difference in degrees.
function UTILS.HdgDiff(h1, h2)
-- Angle in rad.
local alpha= math.rad(tonumber(h1))
local beta = math.rad(tonumber(h2))
-- Runway vector.
local v1={x=math.cos(alpha), y=0, z=math.sin(alpha)}
local v2={x=math.cos(beta), y=0, z=math.sin(beta)}
local delta=UTILS.VecAngle(v1, v2)
return math.abs(delta)
end
--- Returns the heading from one vec3 to another vec3.
-- @param DCS#Vec3 a From vec3.
-- @param DCS#Vec3 b To vec3.
-- @return #number Heading in degrees.
function UTILS.HdgTo(a, b)
local dz=b.z-a.z
local dx=b.x-a.x
local heading=math.deg(math.atan2(dz, dx))
if heading < 0 then
heading = 360 + heading
end
return heading
end
--- Translate 3D vector in the 2D (x,z) plane. y-component (usually altitude) unchanged.
-- @param DCS#Vec3 a Vector in 3D with x, y, z components.
-- @param #number distance The distance to translate.
-- @param #number angle Rotation angle in degrees.
-- @return DCS#Vec3 Vector rotated in the (x,z) plane.
function UTILS.VecTranslate(a, distance, angle)
local SX = a.x
local SY = a.z
local Radians=math.rad(angle or 0)
local TX=distance*math.cos(Radians)+SX
local TY=distance*math.sin(Radians)+SY
return {x=TX, y=a.y, z=TY}
end
--- Translate 2D vector in the 2D (x,z) plane.
-- @param DCS#Vec2 a Vector in 2D with x, y components.
-- @param #number distance The distance to translate.
-- @param #number angle Rotation angle in degrees.
-- @return DCS#Vec2 Translated vector.
function UTILS.Vec2Translate(a, distance, angle)
local SX = a.x
local SY = a.y
local Radians=math.rad(angle or 0)
local TX=distance*math.cos(Radians)+SX
local TY=distance*math.sin(Radians)+SY
return {x=TX, y=TY}
end
--- Rotate 3D vector in the 2D (x,z) plane. y-component (usually altitude) unchanged.
-- @param DCS#Vec3 a Vector in 3D with x, y, z components.
-- @param #number angle Rotation angle in degrees.
-- @return DCS#Vec3 Vector rotated in the (x,z) plane.
function UTILS.Rotate2D(a, angle)
local phi=math.rad(angle)
local x=a.z
local y=a.x
local Z=x*math.cos(phi)-y*math.sin(phi)
local X=x*math.sin(phi)+y*math.cos(phi)
local Y=a.y
local A={x=X, y=Y, z=Z}
return A
end
--- Rotate 2D vector in the 2D (x,z) plane.
-- @param DCS#Vec2 a Vector in 2D with x, y components.
-- @param #number angle Rotation angle in degrees.
-- @return DCS#Vec2 Vector rotated in the (x,y) plane.
function UTILS.Vec2Rotate2D(a, angle)
local phi=math.rad(angle)
local x=a.x
local y=a.y
local X=x*math.cos(phi)-y*math.sin(phi)
local Y=x*math.sin(phi)+y*math.cos(phi)
local A={x=X, y=Y}
return A
end
--- Converts a TACAN Channel/Mode couple into a frequency in Hz.
-- @param #number TACANChannel The TACAN channel, i.e. the 10 in "10X".
-- @param #string TACANMode The TACAN mode, i.e. the "X" in "10X".
-- @return #number Frequency in Hz or #nil if parameters are invalid.
function UTILS.TACANToFrequency(TACANChannel, TACANMode)
if type(TACANChannel) ~= "number" then
return nil -- error in arguments
end
if TACANMode ~= "X" and TACANMode ~= "Y" then
return nil -- error in arguments
end
-- This code is largely based on ED's code, in DCS World\Scripts\World\Radio\BeaconTypes.lua, line 137.
-- I have no idea what it does but it seems to work
local A = 1151 -- 'X', channel >= 64
local B = 64 -- channel >= 64
if TACANChannel < 64 then
B = 1
end
if TACANMode == 'Y' then
A = 1025
if TACANChannel < 64 then
A = 1088
end
else -- 'X'
if TACANChannel < 64 then
A = 962
end
end
return (A + TACANChannel - B) * 1000000
end
--- Returns the DCS map/theatre as optained by env.mission.theatre
-- @return #string DCS map name.
function UTILS.GetDCSMap()
return env.mission.theatre
end
--- Returns the mission date. This is the date the mission **started**.
-- @return #string Mission date in yyyy/mm/dd format.
-- @return #number The year anno domini.
-- @return #number The month.
-- @return #number The day.
function UTILS.GetDCSMissionDate()
local year=tostring(env.mission.date.Year)
local month=tostring(env.mission.date.Month)
local day=tostring(env.mission.date.Day)
return string.format("%s/%s/%s", year, month, day), tonumber(year), tonumber(month), tonumber(day)
end
--- Returns the day of the mission.
-- @param #number Time (Optional) Abs. time in seconds. Default now, i.e. the value return from timer.getAbsTime().
-- @return #number Day of the mission. Mission starts on day 0.
function UTILS.GetMissionDay(Time)
Time=Time or timer.getAbsTime()
local clock=UTILS.SecondsToClock(Time, false)
local x=tonumber(UTILS.Split(clock, "+")[2])
return x
end
--- Returns the current day of the year of the mission.
-- @param #number Time (Optional) Abs. time in seconds. Default now, i.e. the value return from timer.getAbsTime().
-- @return #number Current day of year of the mission. For example, January 1st returns 0, January 2nd returns 1 etc.
function UTILS.GetMissionDayOfYear(Time)
local Date, Year, Month, Day=UTILS.GetDCSMissionDate()
local d=UTILS.GetMissionDay(Time)
return UTILS.GetDayOfYear(Year, Month, Day)+d
end
--- Returns the magnetic declination of the map.
-- Returned values for the current maps are:
--
-- * Caucasus +6 (East), year ~ 2011
-- * NTTR +12 (East), year ~ 2011
-- * Normandy -10 (West), year ~ 1944
-- * Persian Gulf +2 (East), year ~ 2011
-- * The Cannel Map -10 (West)
-- * Syria +5 (East)
-- * Mariana Islands +2 (East)
-- * Falklands +12 (East) - note there's a LOT of deviation across the map, as we're closer to the South Pole
-- @param #string map (Optional) Map for which the declination is returned. Default is from env.mission.theatre
-- @return #number Declination in degrees.
function UTILS.GetMagneticDeclination(map)
-- Map.
map=map or UTILS.GetDCSMap()
local declination=0
if map==DCSMAP.Caucasus then
declination=6
elseif map==DCSMAP.NTTR then
declination=12
elseif map==DCSMAP.Normandy then
declination=-10
elseif map==DCSMAP.PersianGulf then
declination=2
elseif map==DCSMAP.TheChannel then
declination=-10
elseif map==DCSMAP.Syria then
declination=5
elseif map==DCSMAP.MarianaIslands then
declination=2
elseif map==DCSMAP.Falklands then
declination=12
else
declination=0
end
return declination
end
--- Checks if a file exists or not. This requires **io** to be desanitized.
-- @param #string file File that should be checked.
-- @return #boolean True if the file exists, false if the file does not exist or nil if the io module is not available and the check could not be performed.
function UTILS.FileExists(file)
if io then
local f=io.open(file, "r")
if f~=nil then
io.close(f)
return true
else
return false
end
else
return nil
end
end
--- Checks the current memory usage collectgarbage("count"). Info is printed to the DCS log file. Time stamp is the current mission runtime.
-- @param #boolean output If true, print to DCS log file.
-- @return #number Memory usage in kByte.
function UTILS.CheckMemory(output)
local time=timer.getTime()
local clock=UTILS.SecondsToClock(time)
local mem=collectgarbage("count")
if output then
env.info(string.format("T=%s Memory usage %d kByte = %.2f MByte", clock, mem, mem/1024))
end
return mem
end
--- Get the coalition name from its numerical ID, e.g. coalition.side.RED.
-- @param #number Coalition The coalition ID.
-- @return #string The coalition name, i.e. "Neutral", "Red" or "Blue" (or "Unknown").
function UTILS.GetCoalitionName(Coalition)
if Coalition then
if Coalition==coalition.side.BLUE then
return "Blue"
elseif Coalition==coalition.side.RED then
return "Red"
elseif Coalition==coalition.side.NEUTRAL then
return "Neutral"
else
return "Unknown"
end
else
return "Unknown"
end
end
--- Get the enemy coalition for a given coalition.
-- @param #number Coalition The coalition ID.
-- @param #boolean Neutral Include neutral as enemy.
-- @return #table Enemy coalition table.
function UTILS.GetCoalitionEnemy(Coalition, Neutral)
local Coalitions={}
if Coalition then
if Coalition==coalition.side.RED then
Coalitions={coalition.side.BLUE}
elseif Coalition==coalition.side.BLUE then
Coalitions={coalition.side.RED}
elseif Coalition==coalition.side.NEUTRAL then
Coalitions={coalition.side.RED, coalition.side.BLUE}
end
end
if Neutral then
table.insert(Coalitions, coalition.side.NEUTRAL)
end
return Coalitions
end
--- Get the modulation name from its numerical value.
-- @param #number Modulation The modulation enumerator number. Can be either 0 or 1.
-- @return #string The modulation name, i.e. "AM"=0 or "FM"=1. Anything else will return "Unknown".
function UTILS.GetModulationName(Modulation)
if Modulation then
if Modulation==0 then
return "AM"
elseif Modulation==1 then
return "FM"
else
return "Unknown"
end
else
return "Unknown"
end
end
--- Get the NATO reporting name of a unit type name
-- @param #number Typename The type name.
-- @return #string The Reporting name or "Bogey".
function UTILS.GetReportingName(Typename)
local typename = string.lower(Typename)
for name, value in pairs(ENUMS.ReportingName.NATO) do
local svalue = string.lower(value)
if string.find(typename,svalue,1,true) then
return name
end
end
return "Bogey"
end
--- Get the callsign name from its enumerator value
-- @param #number Callsign The enumerator callsign.
-- @return #string The callsign name or "Ghostrider".
function UTILS.GetCallsignName(Callsign)
for name, value in pairs(CALLSIGN.Aircraft) do
if value==Callsign then
return name
end
end
for name, value in pairs(CALLSIGN.AWACS) do
if value==Callsign then
return name
end
end
for name, value in pairs(CALLSIGN.JTAC) do
if value==Callsign then
return name
end
end
for name, value in pairs(CALLSIGN.Tanker) do
if value==Callsign then
return name
end
end
for name, value in pairs(CALLSIGN.B1B) do
if value==Callsign then
return name
end
end
for name, value in pairs(CALLSIGN.B52) do
if value==Callsign then
return name
end
end
for name, value in pairs(CALLSIGN.F15E) do
if value==Callsign then
return name
end
end
for name, value in pairs(CALLSIGN.F16) do
if value==Callsign then
return name
end
end
for name, value in pairs(CALLSIGN.F18) do
if value==Callsign then
return name
end
end
for name, value in pairs(CALLSIGN.FARP) do
if value==Callsign then
return name
end
end
for name, value in pairs(CALLSIGN.TransportAircraft) do
if value==Callsign then
return name
end
end
return "Ghostrider"
end
--- Get the time difference between GMT and local time.
-- @return #number Local time difference in hours compared to GMT. E.g. Dubai is GMT+4 ==> +4 is returned.
function UTILS.GMTToLocalTimeDifference()
local theatre=UTILS.GetDCSMap()
if theatre==DCSMAP.Caucasus then
return 4 -- Caucasus UTC+4 hours
elseif theatre==DCSMAP.PersianGulf then
return 4 -- Abu Dhabi UTC+4 hours
elseif theatre==DCSMAP.NTTR then
return -8 -- Las Vegas UTC-8 hours
elseif theatre==DCSMAP.Normandy then
return 0 -- Calais UTC+1 hour
elseif theatre==DCSMAP.TheChannel then
return 2 -- This map currently needs +2
elseif theatre==DCSMAP.Syria then
return 3 -- Damascus is UTC+3 hours
elseif theatre==DCSMAP.MarianaIslands then
return 10 -- Guam is UTC+10 hours.
elseif theatre==DCSMAP.Falklands then
return -3 -- Fireland is UTC-3 hours.
else
BASE:E(string.format("ERROR: Unknown Map %s in UTILS.GMTToLocal function. Returning 0", tostring(theatre)))
return 0
end
end
--- Get the day of the year. Counting starts on 1st of January.
-- @param #number Year The year.
-- @param #number Month The month.
-- @param #number Day The day.
-- @return #number The day of the year.
function UTILS.GetDayOfYear(Year, Month, Day)
local floor = math.floor
local n1 = floor(275 * Month / 9)
local n2 = floor((Month + 9) / 12)
local n3 = (1 + floor((Year - 4 * floor(Year / 4) + 2) / 3))
return n1 - (n2 * n3) + Day - 30
end
--- Get sunrise or sun set of a specific day of the year at a specific location.
-- @param #number DayOfYear The day of the year.
-- @param #number Latitude Latitude.
-- @param #number Longitude Longitude.
-- @param #boolean Rising If true, calc sun rise, or sun set otherwise.
-- @param #number Tlocal Local time offset in hours. E.g. +4 for a location which has GMT+4.
-- @return #number Sun rise/set in seconds of the day.
function UTILS.GetSunRiseAndSet(DayOfYear, Latitude, Longitude, Rising, Tlocal)
-- Defaults
local zenith=90.83
local latitude=Latitude
local longitude=Longitude
local rising=Rising
local n=DayOfYear
Tlocal=Tlocal or 0
-- Short cuts.
local rad = math.rad
local deg = math.deg
local floor = math.floor
local frac = function(n) return n - floor(n) end
local cos = function(d) return math.cos(rad(d)) end
local acos = function(d) return deg(math.acos(d)) end
local sin = function(d) return math.sin(rad(d)) end
local asin = function(d) return deg(math.asin(d)) end
local tan = function(d) return math.tan(rad(d)) end
local atan = function(d) return deg(math.atan(d)) end
local function fit_into_range(val, min, max)
local range = max - min
local count
if val < min then
count = floor((min - val) / range) + 1
return val + count * range
elseif val >= max then
count = floor((val - max) / range) + 1
return val - count * range
else
return val
end
end
-- Convert the longitude to hour value and calculate an approximate time
local lng_hour = longitude / 15
local t
if rising then -- Rising time is desired
t = n + ((6 - lng_hour) / 24)
else -- Setting time is desired
t = n + ((18 - lng_hour) / 24)
end
-- Calculate the Sun's mean anomaly
local M = (0.9856 * t) - 3.289
-- Calculate the Sun's true longitude
local L = fit_into_range(M + (1.916 * sin(M)) + (0.020 * sin(2 * M)) + 282.634, 0, 360)
-- Calculate the Sun's right ascension
local RA = fit_into_range(atan(0.91764 * tan(L)), 0, 360)
-- Right ascension value needs to be in the same quadrant as L
local Lquadrant = floor(L / 90) * 90
local RAquadrant = floor(RA / 90) * 90
RA = RA + Lquadrant - RAquadrant
-- Right ascension value needs to be converted into hours
RA = RA / 15
-- Calculate the Sun's declination
local sinDec = 0.39782 * sin(L)
local cosDec = cos(asin(sinDec))
-- Calculate the Sun's local hour angle
local cosH = (cos(zenith) - (sinDec * sin(latitude))) / (cosDec * cos(latitude))
if rising and cosH > 1 then
return "N/R" -- The sun never rises on this location on the specified date
elseif cosH < -1 then
return "N/S" -- The sun never sets on this location on the specified date
end
-- Finish calculating H and convert into hours
local H
if rising then
H = 360 - acos(cosH)
else
H = acos(cosH)
end
H = H / 15
-- Calculate local mean time of rising/setting
local T = H + RA - (0.06571 * t) - 6.622
-- Adjust back to UTC
local UT = fit_into_range(T - lng_hour +Tlocal, 0, 24)
return floor(UT)*60*60+frac(UT)*60*60--+Tlocal*60*60
end
--- Get sun rise of a specific day of the year at a specific location.
-- @param #number Day Day of the year.
-- @param #number Month Month of the year.
-- @param #number Year Year.
-- @param #number Latitude Latitude.
-- @param #number Longitude Longitude.
-- @param #boolean Rising If true, calc sun rise, or sun set otherwise.
-- @param #number Tlocal Local time offset in hours. E.g. +4 for a location which has GMT+4. Default 0.
-- @return #number Sun rise in seconds of the day.
function UTILS.GetSunrise(Day, Month, Year, Latitude, Longitude, Tlocal)
local DayOfYear=UTILS.GetDayOfYear(Year, Month, Day)
return UTILS.GetSunRiseAndSet(DayOfYear, Latitude, Longitude, true, Tlocal)
end
--- Get sun set of a specific day of the year at a specific location.
-- @param #number Day Day of the year.
-- @param #number Month Month of the year.
-- @param #number Year Year.
-- @param #number Latitude Latitude.
-- @param #number Longitude Longitude.
-- @param #boolean Rising If true, calc sun rise, or sun set otherwise.
-- @param #number Tlocal Local time offset in hours. E.g. +4 for a location which has GMT+4. Default 0.
-- @return #number Sun rise in seconds of the day.
function UTILS.GetSunset(Day, Month, Year, Latitude, Longitude, Tlocal)
local DayOfYear=UTILS.GetDayOfYear(Year, Month, Day)
return UTILS.GetSunRiseAndSet(DayOfYear, Latitude, Longitude, false, Tlocal)
end
--- Get OS time. Needs os to be desanitized!
-- @return #number Os time in seconds.
function UTILS.GetOSTime()
if os then
local ts = 0
local t = os.date("*t")
local s = t.sec
local m = t.min * 60
local h = t.hour * 3600
ts = s+m+h
return ts
else
return nil
end
end
--- Shuffle a table accoring to Fisher Yeates algorithm
--@param #table t Table to be shuffled.
--@return #table Shuffled table.
function UTILS.ShuffleTable(t)
if t == nil or type(t) ~= "table" then
BASE:I("Error in ShuffleTable: Missing or wrong type of Argument")
return
end
math.random()
math.random()
math.random()
local TempTable = {}
for i = 1, #t do
local r = math.random(1,#t)
TempTable[i] = t[r]
table.remove(t,r)
end
return TempTable
end
--- Get a random element of a table.
--@param #table t Table.
--@param #boolean replace If `true`, the drawn element is replaced, i.e. not deleted.
--@return #number Table element.
function UTILS.GetRandomTableElement(t, replace)
if t == nil or type(t) ~= "table" then
BASE:I("Error in ShuffleTable: Missing or wrong type of Argument")
return
end
math.random()
math.random()
math.random()
local r=math.random(#t)
local element=t[r]
if not replace then
table.remove(t, r)
end
return element
end
--- (Helicopter) Check if one loading door is open.
--@param #string unit_name Unit name to be checked
--@return #boolean Outcome - true if a (loading door) is open, false if not, nil if none exists.
function UTILS.IsLoadingDoorOpen( unit_name )
local unit = Unit.getByName(unit_name)
if unit ~= nil then
local type_name = unit:getTypeName()
BASE:T("TypeName = ".. type_name)
if type_name == "Mi-8MT" and (unit:getDrawArgumentValue(38) == 1 or unit:getDrawArgumentValue(86) == 1 or unit:getDrawArgumentValue(250) < 0) then
BASE:T(unit_name .. " Cargo doors are open or cargo door not present")
return true
end
if type_name == "Mi-24P" and (unit:getDrawArgumentValue(38) == 1 or unit:getDrawArgumentValue(86) == 1) then
BASE:T(unit_name .. " a side door is open")
return true
end
if type_name == "UH-1H" and (unit:getDrawArgumentValue(43) == 1 or unit:getDrawArgumentValue(44) == 1) then
BASE:T(unit_name .. " a side door is open ")
return true
end
if string.find(type_name, "SA342" ) and (unit:getDrawArgumentValue(34) == 1) then
BASE:T(unit_name .. " front door(s) are open or doors removed")
return true
end
if string.find(type_name, "Hercules") and (unit:getDrawArgumentValue(1215) == 1 and unit:getDrawArgumentValue(1216) == 1) then
BASE:T(unit_name .. " rear doors are open")
return true
end
if string.find(type_name, "Hercules") and (unit:getDrawArgumentValue(1220) == 1 or unit:getDrawArgumentValue(1221) == 1) then
BASE:T(unit_name .. " para doors are open")
return true
end
if string.find(type_name, "Hercules") and (unit:getDrawArgumentValue(1217) == 1) then
BASE:T(unit_name .. " side door is open")
return true
end
if string.find(type_name, "Bell-47") then -- bell aint got no doors so always ready to load injured soldiers
BASE:T(unit_name .. " door is open")
return true
end
if string.find(type_name, "UH-60L") and (unit:getDrawArgumentValue(401) == 1 or unit:getDrawArgumentValue(402) == 1) then
BASE:T(unit_name .. " cargo door is open")
return true
end
if string.find(type_name, "UH-60L" ) and (unit:getDrawArgumentValue(38) == 1 or unit:getDrawArgumentValue(400) == 1 ) then
BASE:T(unit_name .. " front door(s) are open")
return true
end
if type_name == "AH-64D_BLK_II" then
BASE:T(unit_name .. " front door(s) are open")
return true -- no doors on this one ;)
end
if type_name == "Bronco-OV-10A" then
BASE:T(unit_name .. " front door(s) are open")
return true -- no doors on this one ;)
end
return false
end -- nil
return nil
end
--- Function to generate valid FM frequencies in mHz for radio beacons (FM).
-- @return #table Table of frequencies.
function UTILS.GenerateFMFrequencies()
local FreeFMFrequencies = {}
for _first = 3, 7 do
for _second = 0, 5 do
for _third = 0, 9 do
local _frequency = ((100 * _first) + (10 * _second) + _third) * 100000 --extra 0 because we didnt bother with 4th digit
table.insert(FreeFMFrequencies, _frequency)
end
end
end
return FreeFMFrequencies
end
--- Function to generate valid VHF frequencies in kHz for radio beacons (FM).
-- @return #table VHFrequencies
function UTILS.GenerateVHFrequencies()
-- known and sorted map-wise NDBs in kHz
local _skipFrequencies = {
214,274,291.5,295,297.5,
300.5,304,305,307,309.5,311,312,312.5,316,
320,324,328,329,330,332,336,337,
342,343,348,351,352,353,358,
363,365,368,372.5,374,
380,381,384,385,389,395,396,
414,420,430,432,435,440,450,455,462,470,485,
507,515,520,525,528,540,550,560,570,577,580,
602,625,641,662,670,680,682,690,
705,720,722,730,735,740,745,750,770,795,
822,830,862,866,
905,907,920,935,942,950,995,
1000,1025,1030,1050,1065,1116,1175,1182,1210,1215
}
local FreeVHFFrequencies = {}
-- first range
local _start = 200000
while _start < 400000 do
-- skip existing NDB frequencies#
local _found = false
for _, value in pairs(_skipFrequencies) do
if value * 1000 == _start then
_found = true
break
end
end
if _found == false then
table.insert(FreeVHFFrequencies, _start)
end
_start = _start + 10000
end
-- second range
_start = 400000
while _start < 850000 do
-- skip existing NDB frequencies
local _found = false
for _, value in pairs(_skipFrequencies) do
if value * 1000 == _start then
_found = true
break
end
end
if _found == false then
table.insert(FreeVHFFrequencies, _start)
end
_start = _start + 10000
end
-- third range
_start = 850000
while _start <= 999000 do -- adjusted for Gazelle
-- skip existing NDB frequencies
local _found = false
for _, value in pairs(_skipFrequencies) do
if value * 1000 == _start then
_found = true
break
end
end
if _found == false then
table.insert(FreeVHFFrequencies, _start)
end
_start = _start + 50000
end
return FreeVHFFrequencies
end
--- Function to generate valid UHF Frequencies in mHz (AM).
-- @return #table UHF Frequencies
function UTILS.GenerateUHFrequencies()
local FreeUHFFrequencies = {}
local _start = 220000000
while _start < 399000000 do
if _start ~= 243000000 then
table.insert(FreeUHFFrequencies, _start)
end
_start = _start + 500000
end
return FreeUHFFrequencies
end
--- Function to generate valid laser codes for JTAC.
-- @return #table Laser Codes.
function UTILS.GenerateLaserCodes()
local jtacGeneratedLaserCodes = {}
-- helper function
local function ContainsDigit(_number, _numberToFind)
local _thisNumber = _number
local _thisDigit = 0
while _thisNumber ~= 0 do
_thisDigit = _thisNumber % 10
_thisNumber = math.floor(_thisNumber / 10)
if _thisDigit == _numberToFind then
return true
end
end
return false
end
-- generate list of laser codes
local _code = 1111
local _count = 1
while _code < 1777 and _count < 30 do
while true do
_code = _code + 1
if not ContainsDigit(_code, 8)
and not ContainsDigit(_code, 9)
and not ContainsDigit(_code, 0) then
table.insert(jtacGeneratedLaserCodes, _code)
break
end
end
_count = _count + 1
end
return jtacGeneratedLaserCodes
end
--- Ensure the passed object is a table.
-- @param #table Object The object that should be a table.
-- @param #boolean ReturnNil If `true`, return `#nil` if `Object` is nil. Otherwise an empty table `{}` is returned.
-- @return #table The object that now certainly *is* a table.
function UTILS.EnsureTable(Object, ReturnNil)
if Object then
if type(Object)~="table" then
Object={Object}
end
else
if ReturnNil then
return nil
else
Object={}
end
end
return Object
end
--- Function to save an object to a file
-- @param #string Path The path to use. Use double backslashes \\\\ on Windows filesystems.
-- @param #string Filename The name of the file. Existing file will be overwritten.
-- @param #table Data The LUA data structure to save. This will be e.g. a table of text lines with an \\n at the end of each line.
-- @return #boolean outcome True if saving is possible, else false.
function UTILS.SaveToFile(Path,Filename,Data)
-- Thanks to @FunkyFranky
-- Check io module is available.
if not io then
BASE:E("ERROR: io not desanitized. Can't save current file.")
return false
end
-- Check default path.
if Path==nil and not lfs then
BASE:E("WARNING: lfs not desanitized. File will be saved in DCS installation root directory rather than your \"Saved Games\\DCS\" folder.")
end
-- Set path or default.
local path = nil
if lfs then
path=Path or lfs.writedir()
end
-- Set file name.
local filename=Filename
if path~=nil then
filename=path.."\\"..filename
end
-- write
local f = assert(io.open(filename, "wb"))
f:write(Data)
f:close()
return true
end
--- Function to save an object to a file
-- @param #string Path The path to use. Use double backslashes \\\\ on Windows filesystems.
-- @param #string Filename The name of the file.
-- @return #boolean outcome True if reading is possible and successful, else false.
-- @return #table data The data read from the filesystem (table of lines of text). Each line is one single #string!
function UTILS.LoadFromFile(Path,Filename)
-- Thanks to @FunkyFranky
-- Check io module is available.
if not io then
BASE:E("ERROR: io not desanitized. Can't save current state.")
return false
end
-- Check default path.
if Path==nil and not lfs then
BASE:E("WARNING: lfs not desanitized. Loading will look into your DCS installation root directory rather than your \"Saved Games\\DCS\" folder.")
end
-- Set path or default.
local path = nil
if lfs then
path=Path or lfs.writedir()
end
-- Set file name.
local filename=Filename
if path~=nil then
filename=path.."\\"..filename
end
-- Check if file exists.
local exists=UTILS.CheckFileExists(Path,Filename)
if not exists then
BASE:E(string.format("ERROR: File %s does not exist!",filename))
return false
end
-- read
local file=assert(io.open(filename, "rb"))
local loadeddata = {}
for line in file:lines() do
loadeddata[#loadeddata+1] = line
end
file:close()
return true, loadeddata
end
--- Function to check if a file exists.
-- @param #string Path The path to use. Use double backslashes \\\\ on Windows filesystems.
-- @param #string Filename The name of the file.
-- @return #boolean outcome True if reading is possible, else false.
function UTILS.CheckFileExists(Path,Filename)
-- Thanks to @FunkyFranky
-- Function that check if a file exists.
local function _fileexists(name)
local f=io.open(name,"r")
if f~=nil then
io.close(f)
return true
else
return false
end
end
-- Check io module is available.
if not io then
BASE:E("ERROR: io not desanitized. Can't save current state.")
return false
end
-- Check default path.
if Path==nil and not lfs then
BASE:E("WARNING: lfs not desanitized. Loading will look into your DCS installation root directory rather than your \"Saved Games\\DCS\" folder.")
end
-- Set path or default.
local path = nil
if lfs then
path=Path or lfs.writedir()
end
-- Set file name.
local filename=Filename
if path~=nil then
filename=path.."\\"..filename
end
-- Check if file exists.
local exists=_fileexists(filename)
if not exists then
BASE:E(string.format("ERROR: File %s does not exist!",filename))
return false
else
return true
end
end
--- Function to obtain a table of typenames from the group given with the number of units of the same type in the group.
-- @param Wrapper.Group#GROUP Group The group to list
-- @return #table Table of typnames and typename counts, e.g. `{["KAMAZ Truck"]=3,["ATZ-5"]=1}`
function UTILS.GetCountPerTypeName(Group)
local units = Group:GetUnits()
local TypeNameTable = {}
for _,_unt in pairs (units) do
local unit = _unt -- Wrapper.Unit#UNIT
local typen = unit:GetTypeName()
if not TypeNameTable[typen] then
TypeNameTable[typen] = 1
else
TypeNameTable[typen] = TypeNameTable[typen] + 1
end
end
return TypeNameTable
end
--- Function to save the state of a list of groups found by name
-- @param #table List Table of strings with groupnames
-- @param #string Path The path to use. Use double backslashes \\\\ on Windows filesystems.
-- @param #string Filename The name of the file.
-- @param #boolean Structured Append the data with a list of typenames in the group plus their count.
-- @return #boolean outcome True if saving is successful, else false.
-- @usage
-- We will go through the list and find the corresponding group and save the current group size (0 when dead).
-- These groups are supposed to be put on the map in the ME and have *not* moved (e.g. stationary SAM sites).
-- Position is still saved for your usage.
-- The idea is to reduce the number of units when reloading the data again to restart the saved mission.
-- The data will be a simple comma separated list of groupname and size, with one header line.
function UTILS.SaveStationaryListOfGroups(List,Path,Filename,Structured)
local filename = Filename or "StateListofGroups"
local data = "--Save Stationary List of Groups: "..Filename .."\n"
for _,_group in pairs (List) do
local group = GROUP:FindByName(_group) -- Wrapper.Group#GROUP
if group and group:IsAlive() then
local units = group:CountAliveUnits()
local position = group:GetVec3()
if Structured then
local structure = UTILS.GetCountPerTypeName(group)
local strucdata = ""
for typen,anzahl in pairs (structure) do
strucdata = strucdata .. typen .. "=="..anzahl..";"
end
data = string.format("%s%s,%d,%d,%d,%d,%s\n",data,_group,units,position.x,position.y,position.z,strucdata)
else
data = string.format("%s%s,%d,%d,%d,%d\n",data,_group,units,position.x,position.y,position.z)
end
else
data = string.format("%s%s,0,0,0,0\n",data,_group)
end
end
-- save the data
local outcome = UTILS.SaveToFile(Path,Filename,data)
return outcome
end
--- Function to save the state of a set of Wrapper.Group#GROUP objects.
-- @param Core.Set#SET_BASE Set of objects to save
-- @param #string Path The path to use. Use double backslashes \\\\ on Windows filesystems.
-- @param #string Filename The name of the file.
-- @param #boolean Structured Append the data with a list of typenames in the group plus their count.
-- @return #boolean outcome True if saving is successful, else false.
-- @usage
-- We will go through the set and find the corresponding group and save the current group size and current position.
-- The idea is to respawn the groups **spawned during an earlier run of the mission** at the given location and reduce
-- the number of units in the group when reloading the data again to restart the saved mission. Note that *dead* groups
-- cannot be covered with this.
-- **Note** Do NOT use dashes or hashes in group template names (-,#)!
-- The data will be a simple comma separated list of groupname and size, with one header line.
-- The current task/waypoint/etc cannot be restored.
function UTILS.SaveSetOfGroups(Set,Path,Filename,Structured)
local filename = Filename or "SetOfGroups"
local data = "--Save SET of groups: "..Filename .."\n"
local List = Set:GetSetObjects()
for _,_group in pairs (List) do
local group = _group -- Wrapper.Group#GROUP
if group and group:IsAlive() then
local name = group:GetName()
local template = string.gsub(name,"-(.+)$","")
if string.find(template,"#") then
template = string.gsub(name,"#(%d+)$","")
end
local units = group:CountAliveUnits()
local position = group:GetVec3()
if Structured then
local structure = UTILS.GetCountPerTypeName(group)
local strucdata = ""
for typen,anzahl in pairs (structure) do
strucdata = strucdata .. typen .. "=="..anzahl..";"
end
data = string.format("%s%s,%s,%d,%d,%d,%d,%s\n",data,name,template,units,position.x,position.y,position.z,strucdata)
else
data = string.format("%s%s,%s,%d,%d,%d,%d\n",data,name,template,units,position.x,position.y,position.z)
end
end
end
-- save the data
local outcome = UTILS.SaveToFile(Path,Filename,data)
return outcome
end
--- Function to save the state of a set of Wrapper.Static#STATIC objects.
-- @param Core.Set#SET_BASE Set of objects to save
-- @param #string Path The path to use. Use double backslashes \\\\ on Windows filesystems.
-- @param #string Filename The name of the file.
-- @return #boolean outcome True if saving is successful, else false.
-- @usage
-- We will go through the set and find the corresponding static and save the current name and postion when alive.
-- The data will be a simple comma separated list of name and state etc, with one header line.
function UTILS.SaveSetOfStatics(Set,Path,Filename)
local filename = Filename or "SetOfStatics"
local data = "--Save SET of statics: "..Filename .."\n"
local List = Set:GetSetObjects()
for _,_group in pairs (List) do
local group = _group -- Wrapper.Static#STATIC
if group and group:IsAlive() then
local name = group:GetName()
local position = group:GetVec3()
data = string.format("%s%s,%d,%d,%d\n",data,name,position.x,position.y,position.z)
end
end
-- save the data
local outcome = UTILS.SaveToFile(Path,Filename,data)
return outcome
end
--- Function to save the state of a list of statics found by name
-- @param #table List Table of strings with statics names
-- @param #string Path The path to use. Use double backslashes \\\\ on Windows filesystems.
-- @param #string Filename The name of the file.
-- @return #boolean outcome True if saving is successful, else false.
-- @usage
-- We will go through the list and find the corresponding static and save the current alive state as 1 (0 when dead).
-- Position is saved for your usage. **Note** this works on UNIT-name level.
-- The idea is to reduce the number of units when reloading the data again to restart the saved mission.
-- The data will be a simple comma separated list of name and state etc, with one header line.
function UTILS.SaveStationaryListOfStatics(List,Path,Filename)
local filename = Filename or "StateListofStatics"
local data = "--Save Stationary List of Statics: "..Filename .."\n"
for _,_group in pairs (List) do
local group = STATIC:FindByName(_group,false) -- Wrapper.Static#STATIC
if group and group:IsAlive() then
local position = group:GetVec3()
data = string.format("%s%s,1,%d,%d,%d\n",data,_group,position.x,position.y,position.z)
else
data = string.format("%s%s,0,0,0,0\n",data,_group)
end
end
-- save the data
local outcome = UTILS.SaveToFile(Path,Filename,data)
return outcome
end
--- Load back a stationary list of groups from file.
-- @param #string Path The path to use. Use double backslashes \\\\ on Windows filesystems.
-- @param #string Filename The name of the file.
-- @param #boolean Reduce If false, existing loaded groups will not be reduced to fit the saved number.
-- @param #boolean Structured (Optional, needs Reduce = true) If true, and the data has been saved as structure before, remove the correct unit types as per the saved list.
-- @param #boolean Cinematic (Optional, needs Structured = true) If true, place a fire/smoke effect on the dead static position.
-- @param #number Effect (Optional for Cinematic) What effect to use. Defaults to a random effect. Smoke presets are: 1=small smoke and fire, 2=medium smoke and fire, 3=large smoke and fire, 4=huge smoke and fire, 5=small smoke, 6=medium smoke, 7=large smoke, 8=huge smoke.
-- @param #number Density (Optional for Cinematic) What smoke density to use, can be 0 to 1. Defaults to 0.5.
-- @return #table Table of data objects (tables) containing groupname, coordinate and group object. Returns nil when file cannot be read.
-- @return #table When using Cinematic: table of names of smoke and fire objects, so they can be extinguished with `COORDINATE.StopBigSmokeAndFire( name )`
function UTILS.LoadStationaryListOfGroups(Path,Filename,Reduce,Structured,Cinematic,Effect,Density)
local fires = {}
local function Smokers(name,coord,effect,density)
local eff = math.random(8)
if type(effect) == "number" then eff = effect end
coord:BigSmokeAndFire(eff,density,name)
table.insert(fires,name)
end
local function Cruncher(group,typename,anzahl)
local units = group:GetUnits()
local reduced = 0
for _,_unit in pairs (units) do
local typo = _unit:GetTypeName()
if typename == typo then
if Cinematic then
local coordinate = _unit:GetCoordinate()
local name = _unit:GetName()
Smokers(name,coordinate,Effect,Density)
end
_unit:Destroy(false)
reduced = reduced + 1
if reduced == anzahl then break end
end
end
end
local reduce = true
if Reduce == false then reduce = false end
local filename = Filename or "StateListofGroups"
local datatable = {}
if UTILS.CheckFileExists(Path,filename) then
local outcome,loadeddata = UTILS.LoadFromFile(Path,Filename)
-- remove header
table.remove(loadeddata, 1)
for _id,_entry in pairs (loadeddata) do
local dataset = UTILS.Split(_entry,",")
-- groupname,units,position.x,position.y,position.z
local groupname = dataset[1]
local size = tonumber(dataset[2])
local posx = tonumber(dataset[3])
local posy = tonumber(dataset[4])
local posz = tonumber(dataset[5])
local structure = dataset[6]
--BASE:I({structure})
local coordinate = COORDINATE:NewFromVec3({x=posx, y=posy, z=posz})
local data = { groupname=groupname, size=size, coordinate=coordinate, group=GROUP:FindByName(groupname) }
if reduce then
local actualgroup = GROUP:FindByName(groupname)
if actualgroup and actualgroup:IsAlive() and actualgroup:CountAliveUnits() > size then
if Structured and structure then
--BASE:I("Reducing group structure!")
local loadedstructure = {}
local strcset = UTILS.Split(structure,";")
for _,_data in pairs(strcset) do
local datasplit = UTILS.Split(_data,"==")
loadedstructure[datasplit[1]] = tonumber(datasplit[2])
end
--BASE:I({loadedstructure})
local originalstructure = UTILS.GetCountPerTypeName(actualgroup)
--BASE:I({originalstructure})
for _name,_number in pairs(originalstructure) do
local loadednumber = 0
if loadedstructure[_name] then
loadednumber = loadedstructure[_name]
end
local reduce = false
if loadednumber < _number then reduce = true end
--BASE:I(string.format("Looking at: %s | Original number: %d | Loaded number: %d | Reduce: %s",_name,_number,loadednumber,tostring(reduce)))
if reduce then
Cruncher(actualgroup,_name,_number-loadednumber)
end
end
else
local reduction = actualgroup:CountAliveUnits() - size
--BASE:I("Reducing groupsize by ".. reduction .. " units!")
-- reduce existing group
local units = actualgroup:GetUnits()
local units2 = UTILS.ShuffleTable(units) -- randomize table
for i=1,reduction do
units2[i]:Destroy(false)
end
end
end
end
table.insert(datatable,data)
end
else
return nil
end
return datatable,fires
end
--- Load back a SET of groups from file.
-- @param #string Path The path to use. Use double backslashes \\\\ on Windows filesystems.
-- @param #string Filename The name of the file.
-- @param #boolean Spawn If set to false, do not re-spawn the groups loaded in location and reduce to size.
-- @param #boolean Structured (Optional, needs Spawn=true)If true, and the data has been saved as structure before, remove the correct unit types as per the saved list.
-- @param #boolean Cinematic (Optional, needs Structured=true) If true, place a fire/smoke effect on the dead static position.
-- @param #number Effect (Optional for Cinematic) What effect to use. Defaults to a random effect. Smoke presets are: 1=small smoke and fire, 2=medium smoke and fire, 3=large smoke and fire, 4=huge smoke and fire, 5=small smoke, 6=medium smoke, 7=large smoke, 8=huge smoke.
-- @param #number Density (Optional for Cinematic) What smoke density to use, can be 0 to 1. Defaults to 0.5.
-- @return Core.Set#SET_GROUP Set of GROUP objects.
-- Returns nil when file cannot be read. Returns a table of data entries if Spawn is false: `{ groupname=groupname, size=size, coordinate=coordinate, template=template }`
-- @return #table When using Cinematic: table of names of smoke and fire objects, so they can be extinguished with `COORDINATE.StopBigSmokeAndFire( name )`
function UTILS.LoadSetOfGroups(Path,Filename,Spawn,Structured,Cinematic,Effect,Density)
local fires = {}
local usedtemplates = {}
local spawn = true
if Spawn == false then spawn = false end
local filename = Filename or "SetOfGroups"
local setdata = SET_GROUP:New()
local datatable = {}
local function Smokers(name,coord,effect,density)
local eff = math.random(8)
if type(effect) == "number" then eff = effect end
coord:BigSmokeAndFire(eff,density,name)
table.insert(fires,name)
end
local function Cruncher(group,typename,anzahl)
local units = group:GetUnits()
local reduced = 0
for _,_unit in pairs (units) do
local typo = _unit:GetTypeName()
if typename == typo then
if Cinematic then
local coordinate = _unit:GetCoordinate()
local name = _unit:GetName()
Smokers(name,coordinate,Effect,Density)
end
_unit:Destroy(false)
reduced = reduced + 1
if reduced == anzahl then break end
end
end
end
local function PostSpawn(args)
local spwndgrp = args[1]
local size = args[2]
local structure = args[3]
setdata:AddObject(spwndgrp)
local actualsize = spwndgrp:CountAliveUnits()
if actualsize > size then
if Structured and structure then
local loadedstructure = {}
local strcset = UTILS.Split(structure,";")
for _,_data in pairs(strcset) do
local datasplit = UTILS.Split(_data,"==")
loadedstructure[datasplit[1]] = tonumber(datasplit[2])
end
local originalstructure = UTILS.GetCountPerTypeName(spwndgrp)
for _name,_number in pairs(originalstructure) do
local loadednumber = 0
if loadedstructure[_name] then
loadednumber = loadedstructure[_name]
end
local reduce = false
if loadednumber < _number then reduce = true end
if reduce then
Cruncher(spwndgrp,_name,_number-loadednumber)
end
end
else
local reduction = actualsize-size
-- reduce existing group
local units = spwndgrp:GetUnits()
local units2 = UTILS.ShuffleTable(units) -- randomize table
for i=1,reduction do
units2[i]:Destroy(false)
end
end
end
end
local function MultiUse(Data)
local template = Data.template
if template and usedtemplates[template] and usedtemplates[template].used and usedtemplates[template].used > 1 then
-- multispawn
if not usedtemplates[template].done then
local spwnd = 0
local spawngrp = SPAWN:New(template)
spawngrp:InitLimit(0,usedtemplates[template].used)
for _,_entry in pairs(usedtemplates[template].data) do
spwnd = spwnd + 1
local sgrp=spawngrp:SpawnFromCoordinate(_entry.coordinate,spwnd)
BASE:ScheduleOnce(0.5,PostSpawn,{sgrp,_entry.size,_entry.structure})
end
usedtemplates[template].done = true
end
return true
else
return false
end
end
--BASE:I("Spawn = "..tostring(spawn))
if UTILS.CheckFileExists(Path,filename) then
local outcome,loadeddata = UTILS.LoadFromFile(Path,Filename)
-- remove header
table.remove(loadeddata, 1)
for _id,_entry in pairs (loadeddata) do
local dataset = UTILS.Split(_entry,",")
-- groupname,template,units,position.x,position.y,position.z
local groupname = dataset[1]
local template = dataset[2]
local size = tonumber(dataset[3])
local posx = tonumber(dataset[4])
local posy = tonumber(dataset[5])
local posz = tonumber(dataset[6])
local structure = dataset[7]
local coordinate = COORDINATE:NewFromVec3({x=posx, y=posy, z=posz})
local group=nil
if size > 0 then
local data = { groupname=groupname, size=size, coordinate=coordinate, template=template, structure=structure }
table.insert(datatable,data)
if usedtemplates[template] then
usedtemplates[template].used = usedtemplates[template].used + 1
table.insert(usedtemplates[template].data,data)
else
usedtemplates[template] = {
data = {},
used = 1,
done = false,
}
table.insert(usedtemplates[template].data,data)
end
end
end
for _id,_entry in pairs (datatable) do
if spawn and not MultiUse(_entry) and _entry.size > 0 then
local group = SPAWN:New(_entry.template)
local sgrp=group:SpawnFromCoordinate(_entry.coordinate)
BASE:ScheduleOnce(0.5,PostSpawn,{sgrp,_entry.size,_entry.structure})
end
end
else
return nil
end
if spawn then
return setdata,fires
else
return datatable
end
end
--- Load back a SET of statics from file.
-- @param #string Path The path to use. Use double backslashes \\\\ on Windows filesystems.
-- @param #string Filename The name of the file.
-- @return Core.Set#SET_STATIC Set SET_STATIC containing the static objects.
function UTILS.LoadSetOfStatics(Path,Filename)
local filename = Filename or "SetOfStatics"
local datatable = SET_STATIC:New()
if UTILS.CheckFileExists(Path,filename) then
local outcome,loadeddata = UTILS.LoadFromFile(Path,Filename)
-- remove header
table.remove(loadeddata, 1)
for _id,_entry in pairs (loadeddata) do
local dataset = UTILS.Split(_entry,",")
local staticname = dataset[1]
local StaticObject = STATIC:FindByName(staticname,false)
if StaticObject then
datatable:AddObject(StaticObject)
end
end
else
return nil
end
return datatable
end
--- Load back a stationary list of statics from file.
-- @param #string Path The path to use. Use double backslashes \\\\ on Windows filesystems.
-- @param #string Filename The name of the file.
-- @param #boolean Reduce If false, do not destroy the units with size=0.
-- @param #boolean Dead (Optional, needs Reduce = true) If Dead is true, re-spawn the dead object as dead and do not just delete it.
-- @param #boolean Cinematic (Optional, needs Dead = true) If true, place a fire/smoke effect on the dead static position.
-- @param #number Effect (Optional for Cinematic) What effect to use. Defaults to a random effect. Smoke presets are: 1=small smoke and fire, 2=medium smoke and fire, 3=large smoke and fire, 4=huge smoke and fire, 5=small smoke, 6=medium smoke, 7=large smoke, 8=huge smoke.
-- @param #number Density (Optional for Cinematic) What smoke density to use, can be 0 to 1. Defaults to 0.5.
-- @return #table Table of data objects (tables) containing staticname, size (0=dead else 1), coordinate and the static object. Dead objects will have coordinate points `{x=0,y=0,z=0}`
-- @return #table When using Cinematic: table of names of smoke and fire objects, so they can be extinguished with `COORDINATE.StopBigSmokeAndFire( name )`
-- Returns nil when file cannot be read.
function UTILS.LoadStationaryListOfStatics(Path,Filename,Reduce,Dead,Cinematic,Effect,Density)
local fires = {}
local reduce = true
if Reduce == false then reduce = false end
local filename = Filename or "StateListofStatics"
local datatable = {}
if UTILS.CheckFileExists(Path,filename) then
local outcome,loadeddata = UTILS.LoadFromFile(Path,Filename)
-- remove header
table.remove(loadeddata, 1)
for _id,_entry in pairs (loadeddata) do
local dataset = UTILS.Split(_entry,",")
-- staticname,units(1/0),position.x,position.y,position.z)
local staticname = dataset[1]
local size = tonumber(dataset[2])
local posx = tonumber(dataset[3])
local posy = tonumber(dataset[4])
local posz = tonumber(dataset[5])
local coordinate = COORDINATE:NewFromVec3({x=posx, y=posy, z=posz})
local data = { staticname=staticname, size=size, coordinate=coordinate, static=STATIC:FindByName(staticname,false) }
table.insert(datatable,data)
if size==0 and reduce then
local static = STATIC:FindByName(staticname,false)
if static then
if Dead then
local deadobject = SPAWNSTATIC:NewFromStatic(staticname,static:GetCountry())
deadobject:InitDead(true)
local heading = static:GetHeading()
local coord = static:GetCoordinate()
static:Destroy(false)
deadobject:SpawnFromCoordinate(coord,heading,staticname)
if Cinematic then
local effect = math.random(8)
if type(Effect) == "number" then
effect = Effect
end
coord:BigSmokeAndFire(effect,Density,staticname)
table.insert(fires,staticname)
end
else
static:Destroy(false)
end
end
end
end
else
return nil
end
return datatable,fires
end
--- Heading Degrees (0-360) to Cardinal
-- @param #number Heading The heading
-- @return #string Cardinal, e.g. "NORTH"
function UTILS.BearingToCardinal(Heading)
if Heading >= 0 and Heading <= 22 then return "North"
elseif Heading >= 23 and Heading <= 66 then return "North-East"
elseif Heading >= 67 and Heading <= 101 then return "East"
elseif Heading >= 102 and Heading <= 146 then return "South-East"
elseif Heading >= 147 and Heading <= 201 then return "South"
elseif Heading >= 202 and Heading <= 246 then return "South-West"
elseif Heading >= 247 and Heading <= 291 then return "West"
elseif Heading >= 292 and Heading <= 338 then return "North-West"
elseif Heading >= 339 then return "North"
end
end
--- Create a BRAA NATO call string BRAA between two GROUP objects
-- @param Wrapper.Group#GROUP FromGrp GROUP object
-- @param Wrapper.Group#GROUP ToGrp GROUP object
-- @return #string Formatted BRAA NATO call
function UTILS.ToStringBRAANATO(FromGrp,ToGrp)
local BRAANATO = "Merged."
local GroupNumber = ToGrp:GetSize()
local GroupWords = "Singleton"
if GroupNumber == 2 then GroupWords = "Two-Ship"
elseif GroupNumber >= 3 then GroupWords = "Heavy"
end
local grpLeadUnit = ToGrp:GetUnit(1)
local tgtCoord = grpLeadUnit:GetCoordinate()
local currentCoord = FromGrp:GetCoordinate()
local hdg = UTILS.Round(ToGrp:GetHeading()/100,1)*100
local bearing = UTILS.Round(currentCoord:HeadingTo(tgtCoord),0)
local rangeMetres = tgtCoord:Get2DDistance(currentCoord)
local rangeNM = UTILS.Round( UTILS.MetersToNM(rangeMetres), 0)
local aspect = tgtCoord:ToStringAspect(currentCoord)
local alt = UTILS.Round(UTILS.MetersToFeet(grpLeadUnit:GetAltitude())/1000,0)--*1000
local track = UTILS.BearingToCardinal(hdg)
if rangeNM > 3 then
if aspect == "" then
BRAANATO = string.format("%s, BRA, %03d, %d miles, Angels %d, Track %s",GroupWords,bearing, rangeNM, alt, track)
else
BRAANATO = string.format("%s, BRAA, %03d, %d miles, Angels %d, %s, Track %s",GroupWords, bearing, rangeNM, alt, aspect, track)
end
end
return BRAANATO
end
--- Check if an object is contained in a table.
-- @param #table Table The table.
-- @param #table Object The object to check.
-- @param #string Key (Optional) Key to check. By default, the object itself is checked.
-- @return #booolen Returns `true` if object is in table.
function UTILS.IsInTable(Table, Object, Key)
for key, object in pairs(Table) do
if Key then
if Object[Key]==object[Key] then
return true
end
else
if object==Object then
return true
end
end
end
return false
end
--- Check if any object of multiple given objects is contained in a table.
-- @param #table Table The table.
-- @param #table Objects The objects to check.
-- @param #string Key (Optional) Key to check.
-- @return #booolen Returns `true` if object is in table.
function UTILS.IsAnyInTable(Table, Objects, Key)
for _,Object in pairs(UTILS.EnsureTable(Objects)) do
for key, object in pairs(Table) do
if Key then
if Object[Key]==object[Key] then
return true
end
else
if object==Object then
return true
end
end
end
end
return false
end
--- Helper function to plot a racetrack on the F10 Map - curtesy of Buur.
-- @param Core.Point#COORDINATE Coordinate
-- @param #number Altitude Altitude in feet
-- @param #number Speed Speed in knots
-- @param #number Heading Heading in degrees
-- @param #number Leg Leg in NM
-- @param #number Coalition Coalition side, e.g. coaltion.side.RED or coaltion.side.BLUE
-- @param #table Color Color of the line in RGB, e.g. {1,0,0} for red
-- @param #number Alpha Transparency factor, between 0.1 and 1
-- @param #number LineType Line type to be used, line type: 0=No line, 1=Solid, 2=Dashed, 3=Dotted, 4=Dot dash, 5=Long dash, 6=Two dash. Default 1=Solid.
-- @param #boolean ReadOnly
function UTILS.PlotRacetrack(Coordinate, Altitude, Speed, Heading, Leg, Coalition, Color, Alpha, LineType, ReadOnly)
local fix_coordinate = Coordinate
local altitude = Altitude
local speed = Speed or 350
local heading = Heading or 270
local leg_distance = Leg or 10
local coalition = Coalition or -1
local color = Color or {1,0,0}
local alpha = Alpha or 1
local lineType = LineType or 1
speed = UTILS.IasToTas(speed, UTILS.FeetToMeters(altitude), oatcorr)
local turn_radius = 0.0211 * speed -3.01
local point_two = fix_coordinate:Translate(UTILS.NMToMeters(leg_distance), heading, true, false)
local point_three = point_two:Translate(UTILS.NMToMeters(turn_radius)*2, heading - 90, true, false)
local point_four = fix_coordinate:Translate(UTILS.NMToMeters(turn_radius)*2, heading - 90, true, false)
local circle_center_fix_four = point_two:Translate(UTILS.NMToMeters(turn_radius), heading - 90, true, false)
local circle_center_two_three = fix_coordinate:Translate(UTILS.NMToMeters(turn_radius), heading - 90, true, false)
fix_coordinate:LineToAll(point_two, coalition, color, alpha, lineType)
point_four:LineToAll(point_three, coalition, color, alpha, lineType)
circle_center_fix_four:CircleToAll(UTILS.NMToMeters(turn_radius), coalition, color, alpha, nil, 0, lineType)--, ReadOnly, Text)
circle_center_two_three:CircleToAll(UTILS.NMToMeters(turn_radius), coalition, color, alpha, nil, 0, lineType)--, ReadOnly, Text)
end