Message with range between two groups.

[EasyEB]

Hi!

 

Is it possible to get a message to player with range between two groups? For knstance have a message for ten seconds saying "Blue1 is 2 nm from target" and "target" beeing group Red1.

 

So,I'm still learning this. I guess what I need is a way to get the position of Blue1 (a) and Red1 (b) and then to measure that distance (n). And then make a message that says "[a] is [n] from target"

Edited February 26, 2017 by EasyEB

[brontolo]

take a look here:

 

https://forums.eagle.ru/showthread.php?t=176715&highlight=unit+position&page=2

[EasyEB]

That seems basically like it! Thanks!

 

So, here's the code

 

function getDistance(obj1PosX, obj1PosZ, obj2PosX, obj2PosZ)

local xDiff = obj1PosX - obj2PosX

local yDiff = obj1PosZ - obj2PosZ

return math.sqrt(xDiff * xDiff + yDiff * yDiff) -- meters

end

 

local unit1 = Unit.getByName('Unit 1')

local unit1Pos = unit1:getPosition()

 

local unit2 = Unit.getByName('Unit 2')

local unit2Pos = unit2:getPosition()

 

local distance = getDistance(unit2Pos.p.x, unit2Pos.p.z, unit1Pos.p.x, unit1Pos.p.z)

 

trigger.action.outText("Unit 1 is " .. distance .. " from Unit 2.",10)

 

This gives me a message about the distance in meters between "Unit 1" and "Unit 2".

 

What I need now is

 

1: To get "Unit 1" unit name from the leader of a group called Red1.

2: To get "Unit 2" unit name from the leader of a group called Blue1.

3: To get the distance in nautical miles.

 

I'm just thinking out loud here, but if anyone has the know how, please chime in!

 

Update: Ok, so I had to ask my wife for help and she gave me this:

function getDistance(obj1PosX, obj1PosZ, obj2PosX, obj2PosZ)

local xDiff = obj1PosX - obj2PosX

local yDiff = obj1PosZ - obj2PosZ

-- return math.sqrt(xDiff * xDiff + yDiff * yDiff) -- meters

return math.sqrt(xDiff * xDiff + yDiff * yDiff)/1852 -- meters

end

 

 

local unit1 = Unit.getByName('Unit 1')

local unit1Pos = unit1:getPosition()

 

local unit2 = Unit.getByName('Unit 2')

local unit2Pos = unit2:getPosition()

 

local distance = getDistance(unit2Pos.p.x, unit2Pos.p.z, unit1Pos.p.x, unit1Pos.p.z)

 

trigger.action.outText("Unit 1 is " .. distance .. " from Unit 2.",10)

 

So now it's in nautical miles. But it's showing like ten decimals, and I want it to round off to just show one decimal.

 

Update 2: Ok, so now I've got it down to one decimals.

 

function round(num, numDecimalPlaces)

local mult = 10^(numDecimalPlaces or 0)

return math.floor(num * mult + 0.5) / mult

end

 

function getDistance(obj1PosX, obj1PosZ, obj2PosX, obj2PosZ)

local xDiff = obj1PosX - obj2PosX

local yDiff = obj1PosZ - obj2PosZ

local nautic = math.sqrt(xDiff * xDiff + yDiff * yDiff)/1852 -- position in nautic miles

return round(nautic, 1)

-- return math.sqrt(xDiff * xDiff + yDiff * yDiff)/1852

end

 

local unit1 = Unit.getByName('Unit 1')

local unit1Pos = unit1:getPosition()

 

local unit2 = Unit.getByName('Unit 2')

local unit2Pos = unit2:getPosition()

 

local distance = getDistance(unit2Pos.p.x, unit2Pos.p.z, unit1Pos.p.x, unit1Pos.p.z)

 

trigger.action.outText("Unit 1 is " .. distance .. " from Unit 2.",10)

 

Update 3:

 

Ok, so I went and got a beer and my wife gave me this:

 

Using MIST to get lead position of groups Blue1 and Red1.

 

function round(num, numDecimalPlaces)

local mult = 10^(numDecimalPlaces or 0)

return math.floor(num * mult + 0.5) / mult

end

 

function getDistance(obj1PosX, obj1PosZ, obj2PosX, obj2PosZ)

local xDiff = obj1PosX - obj2PosX

local yDiff = obj1PosZ - obj2PosZ

local nautic = math.sqrt(xDiff * xDiff + yDiff * yDiff)/1852 -- position in nautic miles

return round(nautic, 1)

end

 

local red1Pos = mist.getLeadPos('Red1')

 

local blue1Pos = mist.getLeadPos('Blue1')

 

local distance = getDistance(blue1Pos.x, blue1Pos.z, red1Pos.x, red1Pos.z)

 

trigger.action.outText("Red1 is " .. distance .. " nautical miles from Blue1.",10)

 

Update 4:

 

Ok, so now I want Blue1 to give their MGRS coordinates aswell. I need to find a way to convert the Vec3 from blue1pos to MGRS and get it into the message.

 

Update 5:

 

Ok, got it. This will result in a message where group Blue1 gives their MGRS coordinates, and hos far away they are from group Red1 in nautical miles, rounded off two one decimal. I think I will try to change mist.getLeadPos to mist.getAvgPos, but whatever.

 

function round(num, numDecimalPlaces)

local mult = 10^(numDecimalPlaces or 0)

return math.floor(num * mult + 0.5) / mult

end

 

function getDistance(obj1PosX, obj1PosZ, obj2PosX, obj2PosZ)

local xDiff = obj1PosX - obj2PosX

local yDiff = obj1PosZ - obj2PosZ

local nautic = math.sqrt(xDiff * xDiff + yDiff * yDiff)/1852 -- position in nautic miles

return round(nautic, 1)

end

 

local blue1Units = mist.makeUnitTable({'[g]Blue1'})

 

local blue1MGRS = mist.getMGRSString({units=blue1Units, acc = 5})

 

local red1Pos = mist.getLeadPos('Red1')

 

local blue1Pos = mist.getLeadPos('Blue1')

 

local distance = getDistance(blue1Pos.x, blue1Pos.z, red1Pos.x, red1Pos.z)

 

trigger.action.outText("Blue1 current position is " .. blue1MGRS .. ", " .. distance .. " miles from target.",10)

 

Update 6: So here is the same thing but using mist.getAvgPos instead of mist.getLeadPos.

 

function round(num, numDecimalPlaces)

local mult = 10^(numDecimalPlaces or 0)

return math.floor(num * mult + 0.5) / mult

end

 

function getDistance(obj1PosX, obj1PosZ, obj2PosX, obj2PosZ)

local xDiff = obj1PosX - obj2PosX

local yDiff = obj1PosZ - obj2PosZ

local nautic = math.sqrt(xDiff * xDiff + yDiff * yDiff)/1852 -- position in nautic miles

return round(nautic, 1)

end

 

local blue1Units = mist.makeUnitTable({'[g]Blue1'})

 

local blue1MGRS = mist.getMGRSString({units=blue1Units, acc = 5})

 

local red1Pos = mist.getAvgPos(mist.makeUnitTable({'[g]Red1'}))

 

local blue1Pos = mist.getAvgPos(mist.makeUnitTable({'[g]Blue1'}))

 

local distance = getDistance(blue1Pos.x, blue1Pos.z, red1Pos.x, red1Pos.z)

 

trigger.action.outText("Blue1 current position is " .. blue1MGRS .. ", " .. distance .. " miles from target.",10)

Edited February 26, 2017 by EasyEB