Target Prediction

[Wildbreath]

cheap and cheerful
anyway it using for single time for me, cant spam it

[aeo]

I don't see the need to check the unit speed would that not be accounted for in the position difference itself?
Edit2: I stand corrected, it clearly needs to take speed into account. More math lol

I just got it working and realized it works great for everything but mouseover, something to do with the Timer.After clearing the mouseover unit so it cant get the second position.

I'll do more testing tonight as Im at work and testing over RDP where moving is impossible. But it hit stationary targets as expected.

Edit: Also this timer function will help in creating a better TimeUntilDeath function. Easily get a frames change in HP.

[aeo]

After all this work I think I've developed something that works decently:
I still have some testing to do but calculating a velocity vector based on the change in position in 1 frame seems to be giving decent results. The only real issue at this point is that the trap is an arcing projectile. I could probably find some gravitational equation to roughly guess the time of travel based on an arc.

function PredictTrapPosition2(unit)
    unit = unit or 'target'
	local framerate = GetFramerate();
    local x1, y1, _,_,_ = GetUnitPosition(unit)
	local startTime = GetTime()
    C_Timer.After(.1, function()
        if UnitExists(unit) then
			local x2, y2,z,_,_ = GetUnitPosition(unit)
			local px, py,_,_,_ = GetUnitPosition('player')


			local endTime = GetTime()
			local dx,dy,dz
			dx = (x2-x1) / (endTime - startTime)
			dy = (y2-y1) / (endTime - startTime)
			dz = 0


			local distance = math.sqrt((x2 - px)^2 + (y2 - py)^2)
			local flightTime  = distance / 25 * cos((30 * 3.1459) /180) --Works nicely decreases as target gets closer. 


			local x = x2 + dx * flightTime
			local y = y2 + dy * flightTime


			local newz = z;
			while InLineOfSight(x,y,z,x,y,newz,4) == 0 do
				newz = newz - 5;
			end
			AceRunMacroText("/script ClickPosition("..x..","..y..","..newz..")")
		end
    end)


end