Dot product help

[xDeltaXen]

I want to tell if the player is looking left of a position or part or right of it. The trouble is I don’t have a lookvector for that position. I only have the lookvector of the player. How can I find the dot product between them to tell if I am looking left or right of the position?

[dthecoolest]

Use cross product as it tells you the directionality of a vector.

Specifically this function made by @sleitnick is really awesome, angle between signed.

Detecting the Direction of a Spin

Oh, for this use this function I found from AeroGameFramework this should give a sign to your vector angles stuff. AngleBetweenSigned: Same as AngleBetween, but returns a signed value. v1 = Vector3.new(10, 0, 0) v2 = Vector3.new(0, 0, -10) axis = Vector3.new(0, 1, 0) AngleBetweenSigned(v1, v2, axis) == math.rad(90)

Also you can find the vector towards that part position from the humanoids position using the common formula:

Part.position- humanoid root part.Position