I've read the wiki page that includes lookVector, but it only provides a one sentence explanation. How would one use it to determine which way it is facing? Currently, I'm trying to make a sliding door and I want it to work whichever way the door is facing. Little help?
lookVector of a CFrame is a unit vector pointing in the direction of the CFrame's forward direction (-z in object space) or front face.
If the door's front face points the way you want it to move, then the math would look something like
startCFrame = part.CFrame slideAmount = 5 -- Studs to slide slideDirection = part.CFrame.lookVector -- Direction to slide in slideCFrame = startCFrame + slideDirection * slideAmount -- Start + Motion