Need help with a coil shape generating function

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#1

What I’m talking about:
image

How would I make a function that generates one of these between two points? I’ve tried googling ways to do this but I can’t find any good resources for how to make something like this.

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#2

I’m guessing a SpringConstraint isn’t sufficient for your specific needs?

#3

this is actually really easy:

local radius = 10

local e = 0

for i=1, 100 do
e += 1
p=Instance.new("Part", workspace)
p.Size = Vector3.new(1, 1, 1)
p.CFrame = CFrame.new(0, 10, 0) + Vector3.new(math.sin(e) * radius, math.cos(e) * radius, e)
game.Debris:AddItem(p, 3)
end
#4

That creates more of a helix than a coil. I also need help with getting the size and rotation of parts to make it look more like a coil.

#5

It is not, I need it for effect stuff which needs more effects then a SpringConstraint can support.

#6

If you understand all the maths then there’s an answer on StackOverflow relating to this:

I don’t (I’m really bad at maths), and so I’d probably go about using CFrames to rotate a cylinder around a central point, and moving it up the axis until it reached the end (calculating the current and next point in order to ensure it faces the right direction).

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#7

ok i got it perfect:

local radius = 5

local e = 0

for i=1, 1000 do
    e += 0.1
    local p = Instance.new("Part", workspace)
    p.Size = Vector3.new(1, 1, 1)
    p.CFrame = CFrame.new(0, 10, 0) + Vector3.new(math.sin(e) * radius, math.cos(e) * radius, e)
end
#8

Almost would work, but any idea on how I could have it so that the parts are rotated to connect to each other instead of there just being more parts to create a more smoother shape? Also, how would I have that go between a start point and an end point?

#9

the start cframe is easy, but i cant tell you right now exactly how you will do the end point, the calculation will involve some .Magnitude calcs and division of the e variable based on the magnitude.

local startCFrame = CFrame.new(0, 10, 0) -- this can be done easily
local radius = 5

local e = 0

for i=1, 1000 do
    e += 0.1
    local p = Instance.new("Part", workspace)
    p.Size = Vector3.new(1, 1, 1)
    p.CFrame = startCFrame + Vector3.new(math.sin(e) * radius, math.cos(e) * radius, e)
end
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#10

Any idea how I could have the parts making up the coil connect to each other like this so it looks more smoother and uses less parts? Also how would I rotate it so it goes in a direction towards an endpoint?

image
image746×392 229 KB

#11

you have to mess with the incriments of the e and radius variable and the parts size until you find something you like, and for the direction, use (EndCFrame.p - StartCFrame.p).Unit, and finally, take into account what i said in my last post to you about the magnitude.

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