Looking for a Landing Distance Script

[Rudel_chw]

Hello,

 

I'm editing a mission for the recent OV-10A Mod, and at the end of it I would like to be able to rate the landing performance of the player, at least in terms of how long was the landing run. 

Does anyone have a script like that, one that takes a Unit's Name and can measure the distance between the point where it first touched the ground, and the point where its speed came to zero?

Wish programming DCS scripts were easier, but the most I've been able to do is modify (slightly) other peoples' scripts  and now I'm too old to learn Lua programming.

Thanks beforehand for any help with my mission. Cheers!

 

Eduardo

[toutenglisse]

@Rudel_chw hi ! Here is a script I wrote for you. Create a mission start trigger and load latest MIST and this script.

Script will detect when a Player or Client lands on an airbase with an airplane on any map.

Player gets a "TouchDown" message, and another one if he's outside of runway's boundaries.

Then when Player stops he gets message with airbase callsign, runway name, landing distance, distance from runway's entry to landing point and distance from stop point to runway's end. Or another message if he stopped outside of boundaries.  (gray quad mark is displayed on F10 map until 60sec after stop to show boundaries)

EDIT : script/example updated to include both metric/imperial units and landing in openfield.

Spoiler

Pilot = {}
mId = 0
function landing(event)
if event.id == world.event.S_EVENT_LAND and event.place and event.place:getDesc()["category"] == 0 and event.initiator:isExist() == true
and event.initiator:getPlayerName() and event.initiator:getDesc()["category"] == 0 then
local PilotID = event.initiator:getID()
trigger.action.outTextForUnit(PilotID , 'TouchDown !',3)
local PilotName = event.initiator:getPlayerName()
Pilot[PilotID] = nil
local landPoint = event.initiator:getPoint()
local airbaseCall = event.place:getCallsign()
local runways = event.place:getRunways()
if #runways > 0 then 
for i = 1, #runways do
local points = {}
local init = runways[i].position
local bearing = runways[i].course * -1
local L2 = runways[i].length/2
local offset1 = {y = 0, x = init.x + (math.cos(bearing + math.pi) * L2), z = init.z + (math.sin(bearing + math.pi) * L2)}
local offset2 = {y = 0, x = init.x - (math.cos(bearing + math.pi) * L2), z = init.z - (math.sin(bearing + math.pi) * L2)}
local width = runways[i].width/2
points[1] = {x = offset1.x + (math.cos(bearing + (math.pi/2)) * width), y = 0, z = offset1.z + (math.sin(bearing + (math.pi/2)) * width)}
points[2] = {x = offset1.x + (math.cos(bearing - (math.pi/2)) * width), y = 0, z = offset1.z + (math.sin(bearing - (math.pi/2)) * width)}
points[3] = {x = offset2.x + (math.cos(bearing - (math.pi/2)) * width), y = 0, z = offset2.z + (math.sin(bearing - (math.pi/2)) * width)}
points[4] = {x = offset2.x + (math.cos(bearing + (math.pi/2)) * width), y = 0, z = offset2.z + (math.sin(bearing + (math.pi/2)) * width)}
if mist.pointInPolygon(landPoint, points) == true then
mId = mId + 1
trigger.action.quadToAll(-1, mId, points[1], points[2], points[3], points[4], {0, 0, 0, 1}, {0, 0, 0, .5}, 3)
Pilot[PilotID] = {
[1] = landPoint,
[2] = airbaseCall,
[3] = runways[i].Name,
[4] = math.floor(mist.utils.get2DDist(landPoint, offset1)),
[5] = math.floor(mist.utils.get2DDist(landPoint, offset2)),
[6] = points,
[7] = offset1,
[8] = offset2,
[9] = mId,
[10] = math.floor(mist.utils.get2DDist(landPoint, offset1)*3.28),
[11] = math.floor(mist.utils.get2DDist(landPoint, offset2)*3.28)
}
end
end
end
if Pilot[PilotID] ~= nil then
mist.scheduleFunction(PilotStopped, {event.initiator, PilotID, PilotName}, timer.getTime()+5)
else
trigger.action.outTextForUnit(PilotID , PilotName..' you landed outside of runway boundaries !',10)
end
elseif event.id == world.event.S_EVENT_LAND and not event.place and event.initiator:isExist() == true
and event.initiator:getPlayerName() and event.initiator:getDesc()["category"] == 0 then
local PilotID = event.initiator:getID()
trigger.action.outTextForUnit(PilotID , 'TouchDown !',3)
local PilotName = event.initiator:getPlayerName()
Pilot[PilotID] = nil
Pilot[PilotID] = {[1] = event.initiator:getPoint()}
mist.scheduleFunction(PilotStopped2, {event.initiator, PilotID, PilotName}, timer.getTime()+3)
end
end
function PilotStopped2(PilotUnit, PilotID, PilotName)
if PilotUnit:isExist() == true then
local PilotVec = PilotUnit:getVelocity()
local PilotSpeed = math.floor(math.sqrt(PilotVec.x^2 + PilotVec.y^2 + PilotVec.z^2))
local stopPoint = PilotUnit:getPoint()
if PilotSpeed == 0 then
local landDist = math.floor(mist.utils.get2DDist(Pilot[PilotID][1], stopPoint))
local landDist2 = math.floor(mist.utils.get2DDist(Pilot[PilotID][1], stopPoint)*3.28)
trigger.action.outTextForUnit(PilotID , PilotName..' you landed in openfield.\n\nLanding distance : '..landDist..
' meters / '..landDist2..' feet.',30)
else
mist.scheduleFunction(PilotStopped2, {PilotUnit, PilotID, PilotName}, timer.getTime()+0.5)
end
end
end
function PilotStopped(PilotUnit, PilotID, PilotName)
if PilotUnit:isExist() == true then
local PilotVec = PilotUnit:getVelocity()
local PilotSpeed = math.floor(math.sqrt(PilotVec.x^2 + PilotVec.y^2 + PilotVec.z^2))
local stopPoint = PilotUnit:getPoint()
if PilotSpeed == 0 then
if mist.pointInPolygon(stopPoint, Pilot[PilotID][6]) == true then
if math.floor(mist.utils.get2DDist(stopPoint, Pilot[PilotID][7])) > Pilot[PilotID][4] then
landDistEntry = Pilot[PilotID][4]
landDistEntry2 = Pilot[PilotID][10]
landDistStop = math.floor(mist.utils.get2DDist(stopPoint, Pilot[PilotID][8]))
landDistStop2 = math.floor(mist.utils.get2DDist(stopPoint, Pilot[PilotID][8])*3.28)
else
landDistEntry = Pilot[PilotID][5]
landDistEntry2 = Pilot[PilotID][11]
landDistStop = math.floor(mist.utils.get2DDist(stopPoint, Pilot[PilotID][7]))
landDistStop2 = math.floor(mist.utils.get2DDist(stopPoint, Pilot[PilotID][7])*3.28)
end
local landDist = math.floor(mist.utils.get2DDist(Pilot[PilotID][1], stopPoint))
local landDist2 = math.floor(mist.utils.get2DDist(Pilot[PilotID][1], stopPoint)*3.28)
trigger.action.outTextForUnit(PilotID , PilotName..' you landed at '..Pilot[PilotID][2]..' on runway '..Pilot[PilotID][3]..
'.\n\nLanding distance : '..landDist..
' meters / '..landDist2..
' feet.\n\nDistance from runway entry at landing point : '..landDistEntry..
' meters / '..landDistEntry2..
' feet.\n\nDistance from runway end at stop point : '..landDistStop..
' meters / '..landDistStop2..' feet.',30)
else
trigger.action.outTextForUnit(PilotID , PilotName..' you stopped outside of runway boundaries !',10)
end
mist.scheduleFunction(trigger.action.removeMark, {Pilot[PilotID][9]}, timer.getTime()+60)
else
mist.scheduleFunction(PilotStopped, {PilotUnit, PilotID, PilotName}, timer.getTime()+0.5)
end
end
end
landingID = mist.addEventHandler(landing)

 

 

 

 

test-landing-distance.miz

Edited September 21, 2022 by toutenglisse
second script update

[Rudel_chw]

1 hour ago, toutenglisse said:

Here is a script I wrote for you

 

Thank you so much for doing this for me  hopefully it will be useful to other mission designers as well. I'm having great fun trying to land this aircraft on as little space as possible:

 

So I tought about giving the playeer feedback on this after landing ... thanks a lot again for this, will test the script tonight and save it on my script library for future use 

Best regards,

 

Eduardo

[Rudel_chw]

4 hours ago, Rudel_chw said:

will test the script tonight and save it on my script library for future use

 

@toutenglisse .. just tested it, worked perfectly, thanks a lot 

 

 

[Zeagle]

Rudel learning Lua is fun. It is much simpler than many other languages. Anyway that script can be written without Mist. 

[Rudel_chw]

1 hour ago, Zeagle said:

Rudel learning Lua is fun. It is much simpler than many other languages. Anyway that script can be written without Mist. 

 

While I find the DCS MIssion Editor to be almost as fun as flying the aircrafts, learning LUA programming within the context of DCS is not simple ... for one there is much too little documentation (sure, there is a lot for standard LUA, but not for using it within DCS) and little tutorials and code samples.

From my point of view, using LUA frameworks like Moose or Mist is not a detriment, since they don't require the end user to install anything, they are not User Mods, as they are encapsulated inside the MIZ file.

[Rudel_chw]

On 9/14/2022 at 9:02 AM, toutenglisse said:

Script will detect when a Player or Client lands on an airbase with an airplane on any map.

 

Hi @toutenglisse .. just a short post to let you know that I finished the mission that uses your script, a training one for the OV-10A mod, it worked perfectly and since the script works on any airbase at any map, I will probably use it on other missions of this kind ... here you can take a look at how it improves the feedback that a studentr pilot receives after landing 

 

 

Cheers, and thanks again 

 

[toutenglisse]

@Rudel_chw nice work with this training mission !

[MPalmer]

That is fantastic!!!, toutenglisse...my I use your script and it possible, can I have it displayed in imperial measurements (feet).

[toutenglisse]

On 9/21/2022 at 12:57 AM, MPalmer said:

That is fantastic!!!, toutenglisse...my I use your script and it possible, can I have it displayed in imperial measurements (feet).

No problem. I have updated my previous post with script and example, to display both metric and imperial units.

EDIT : I've updated again right now my previous post to also include landing in openfield (ouside of any base radius. Note ! : this invisible radius in game is 4kms around airbase center, while in mission editor it is a 2kms black circle).

Edited September 23, 2022 by toutenglisse
in post