FancyPolygonThing

oc=oc or function(f) return f end

function regularNGon(n,scale,off)
    local points={}
    for i=0,n-1 do
        points[i+1]=Vector3.new(math.cos(2*math.pi*i/n+off),0,math.sin(2*math.pi*i/n+off))*scale
    end
    return points
end

function createRegularNGon(n,scale,centerP,off)
    local points=regularNGon(n,scale,off)
    local model=Instance.new("Model")
    for i,p1 in pairs(points) do
        local p2=points[i%n+1]
        local center=(p2+p1)/2
        local len=(p2-p1).magnitude

        local part=Instance.new("Part",model)
        part.FormFactor="Custom"
        part.Size=Vector3.new(0.2,0.2,len)
        part.Anchored=true
        part.CFrame=CFrame.new(center,p2)+centerP
        part.CanCollide=false
    end
    return model
end

local plr=game.Players.LocalPlayer
local char=plr.Character

local welds,dirs={},{}
local function gWeld(p0,p1)
    local w=Instance.new("Weld",p0)
    w.Part0=p0
    w.Part1=p1
    w.C0=p0.CFrame:inverse()
    w.C1=p1.CFrame:inverse()
    return w
end

plr.Chatted:connect(oc(function(m)
    if not tonumber(m) then return end
    local sides=tonumber(m)
    local len=25
    local center=char.Torso.CFrame.p

    for i=1,15 do
        local newLen=len*((math.sqrt(2-2*math.cos((sides-2)*math.pi/sides)))/2)
        local ang=math.pi*i/sides
        local mod=createRegularNGon(sides,newLen,center,ang)
        mod.Parent=char
        len=newLen
    end
end))