Vector Mimicking Rotation Matrices

local dx,dy
local angle=0
local next=next
local pcall=pcall
local atan2=math.atan2
local abs=math.abs
local part=game.Workspace.Part
local part2=game.Workspace.Part2
local x1,y1,z1,R00,R01,R02,R10,R11,R12,R20,R21,R22=part.CFrame:components()
local r1,r2,r3=part.Rotation.X,part.Rotation.Y,part.Rotation.Z
local n1,n2,n3,n4,n5,n6,n7,n8,n9,n10,n11,n12,n13,n14,n15=0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
local function changed(part)
    local amt1,amt2,amt3,amt4,amt5,amt6,amt7,amt8,amt9,amt10,amt11,amt12,amt13,amt14,amt15=0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
    local x2,y2,z2,R001,R011,R021,R101,R111,R121,R201,R211,R221=part.CFrame:components()
    local r11,r21,r31=part.Rotation.X,part.Rotation.Y,part.Rotation.Z
    if x2~=x1 or y2~=y1 or z2~=z1 or R001~=R00 or R011~=R01 or R021~=R02 or R101~=R10 or R111~=R11 or R121~=R12 or R201~=R20 or R211~= R21 or R221~= R22 or r11~=r1 or r21~=r2 or r31~=r3 then
        amt1=x2-x1
        amt2=y2-y1
        amt3=z2-z1
        amt4=R001-R00
        amt5=R011-R01
        amt6=R021-R02
        amt7=R101-R10
        amt8=R111-R11
        amt9=R121-R12
        amt10=R201-R20
        amt11=R211-R21
        amt12=R221-R22
        amt13=r11-r1
        amt14=r21-r2
        amt15=r31-r3
        x1,y1,z1,
        R00,R01,R02,
        R10,R11,R12,
        R20,R21,R22,
        n1,n2,n3,
        n4,n5,n6,
        n7,n8,n9,
        n10,n11,n12,
        n13,n14,n15=x2,y2,z2,
        R001,R011,R021,
        R101,R111,R121,
        R201,R211,R221,
        amt1,amt2,amt3,
        amt4,amt5,amt6,
        amt7,amt8,amt9,
        amt10,amt11,amt12,
        amt13,amt14,amt15
        return amt1,amt2,amt3,amt4,amt5,amt6,amt7,amt8,amt9,amt10,amt11,amt12,amt13,amt14,amt15
    end
    --[[if x2~=x1 then
        if y2~=y1 then
            if z2~=z1 then
                amt1=x2-x1
                amt2=y2-y1
                amt3=z2-z1
                x1,y1,z1,n1,n2,n3=x2,y2,z2,amt1,amt2,amt3
                return amt1,amt2,amt3
            else
                amt1=x2-x1
                amt2=y2-y1
                x1,y1,z1,n1,n2,n3=x2,y2,z2,amt1,amt2,amt3
                return amt1,amt2,amt3
            end
        elseif z2~=z1 then
            amt1=x2-x1
            amt3=z2-z1
            x1,y1,z1,n1,n2,n3=x2,y2,z2,amt1,amt2,amt3
            return amt1,amt2,amt3
        end
    elseif y2~=y1 then
        if z2~=z1 then
            amt2=y2-y1
            amt3=z2-z1
            x1,y1,z1,n1,n2,n3=x2,y2,z2,amt1,amt2,amt3
            return amt1,amt2,amt3
        else
            amt2=y2-y1
            x1,y1,z1,n1,n2,n3=x2,y2,z2,amt1,amt2,amt3
            return amt1,amt2,amt3
        end
    elseif z2~=z1 then
        amt3=z2-z1
        x1,y1,z1,n1,n2,n3=x2,y2,z2,amt1,amt2,amt3
        return amt1,amt2,amt3
    end]]
end
local function rot()
    if part and part2 then
        local dx=(part.CFrame.X-part2.CFrame.X)
        local dy=0
        local dz=(part.CFrame.Z-part2.CFrame.Z)
        local angle=atan2(dz,dx)
        if angle<0 and angle>-3.14 then
            print("Part can still see Part 2")
        else
            print("Part cannot see Part 2")
        end
    end
end
local function rot2()
    if changed(part) then
        local x,y,z,R00,R01,R02,R10,R11,R12,R20,R21,R22=part2.CFrame:components()
        local r1,r2,r3=part2.Rotation.X,part2.Rotation.Y,part2.Rotation.Z
        part2.CFrame=CFrame.new(x+n1,y+n2,z+n3,R00+n4,R01+n5,R02+n6,R10+n7,R11+n8,R12+n9,R20+n10,R21+n11,R22+n12)
        --part2.Rotation=Vector3.new(r1+n13,r2+n14,r3+n15)
    end
end
print("hi")
game:service'RunService'.Stepped:connect(function() rot2() end)