Getting the cursors X angle

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#1

Reference: How to get an angle from cursor position?

I want to do something similar to this:

    local new_delta = Vector3.new(delta.x, 0, delta.z)
    local unit_delta = new_delta.unit
    local angle = math.atan2(unit_delta.z, unit_delta.x)

But the issue is, I want it to only find the x angle. I’ve tinkered with this for hours and hours at this point, with no real result.

Does anybody know what’s up??