How do I make an anchored brick face a specific brick at all times?

Asked by

Stravellia 0

9 years ago

Here is my orbit script. I need to modify it so that the part that orbits has a specific face constantly face a specified brick while orbiting.

Parent = script.Parent
Rotate = script.Parent.Parent.LeaderboardRotate

while wait() do
    local t = tick() * (math.pi * 2) * .1 -- 1.5 revolutions per second
    local orbit = Vector3.new( math.cos(t), 0, math.sin(t) )
    Parent.CFrame = CFrame.new( Rotate.Position + orbit * 7 )
end

"Parent" is the brick that is orbiting. "Rotate" is the brick it is orbiting.

I'd just like to point out that Referring to script.Parent as "Parent", can cause issues BSIncorporated 640 — 9y

Wait about a day while I get my calculus book out. This involves rotation matrices. DewnOracle 115 — 9y

1 answer

Answered by

BlueTaslem 18071

9 years ago

CFrame.new has a convenient constructor that takes two Vector3s, from and to and produces a CFrame looking from from and toward to.

For instance, the following will make Parent move the same way it did before, but always look towards Rotate:

Parent.CFrame = CFrame.new( Rotate.Position + orbit * 7, Rotate.Position )

By "towards", I mean the Front-face is pointing in the direction of the to, and the Top-face is roughly pointing up (as opposed to down, or left, or whatever)

How do I make an anchored brick face a specific brick at all times?

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