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[Bananaraka]

Writing a Cassiopeia script, and am including an option to 'only ult enemies facing you.'

 

Since the API doesn't seem to have such a function, here's an implementation:

function MyScript:IsFacing(target)
	-- make sure directions are facing opposite:
	local dotProduct = myHero.dir.x*target.dir.x + myHero.dir.z*target.dir.z
	if (dotProduct < 0) then
		-- also make sure you dont have your backs to each other:
		if (myHero.dir.x > 0 and myHero.dir.z > 0) then
			return ((target.pos.x - myHero.pos.x > 0) and (target.pos.z - myHero.pos.z > 0))
		elseif (myHero.dir.x < 0 and myHero.dir.z < 0) then
			return ((target.pos.x - myHero.pos.x < 0) and (target.pos.z - myHero.pos.z < 0))
		elseif (myHero.dir.x > 0 and myHero.dir.z < 0) then
			return ((target.pos.x - myHero.pos.x > 0) and (target.pos.z - myHero.pos.z < 0))
		elseif (myHero.dir.x < 0 and myHero.dir.z > 0) then
			return ((target.pos.x - myHero.pos.x < 0) and (target.pos.z - myHero.pos.z > 0))
		end
	end
	return false
end

[Feretorix]

Hello, to improve the function i would suggest storing the dir and pos of the target and yourself in a local variable at the beginning of the function, the rest should be the same.

 

The thing is that each time you call a member from the class (like myHero.dir.x), you call a function in the core which takes extra processing time (even if it's 0.001 it's still something).

 

Thank you for the contribution.