I am making a building system for my game, for which I need to make a clamping function.

This function should clamp the hit position of the player´s mouse for a part following the mouse to stay within specific bounds (the player´s baseplate) so it doesn´t clip out on any side in any rotation.

My problem here, is that I don´t know how to execute this. I´ve prepared some variables for myself (such as the part´s and baseplate´s Look- and RightVectors and their negatives) but I don´t exactly know how to use them.

I am thinking about:

1. getting the hit position relative to the baseplate

2. clamping that position along x and z so that the max value is (baseplateSize-(partSize/2))

This would work, but only if the part couldn´t rotate, and even so could work on only most sides.

My current progress:

function clamp(hit,obj:Model)
    local part = obj.PrimaryPart
    local partSize = part.Size/2
    
    local partFront = part.CFrame.LookVector
    local partBack = -partFront
    local partRight = part.CFrame.RightVector
    local partLeft = -partRight
    
    local plateFront = platePart.CFrame.LookVector
    local plateBack = -plateFront
    local plateRight = platePart.CFrame.RightVector
    local plateLeft = -plateRight
    
    return CFrame.new()
end

(I really don´t know how to write proper StackOverflow questions, please ask me for more context/information if needed)