Bezier Maker

local Vector2 = {}
local v2mt = {}
function Vector2.new(X, Y)
    return setmetatable({x = X or 0, y = Y or 0}, v2mt)
end
v2mt.__add = function(myVector, otherVector)
    myVector.x = myVector.x + otherVector.x
    myVector.y = myVector.y + otherVector.y
    return myVector
end
v2mt.__sub = function(myVector, otherVector)
    myVector.x = myVector.x - otherVector.x
    myVector.y = myVector.y - otherVector.y
    return myVector
end
v2mt.__mul = function(scalar, myVector)
    myVector.x = myVector.x * scalar
    myVector.y = myVector.y * scalar
    return myVector
end
v2mt.__tostring = function(mytable)
    return "("..mytable.x..", "..mytable.y..")"
end
v2mt.__call = function(mytable)
    return Vector2.new(mytable.x, mytable.y)
end

local function bezier(t, ...)
    local points = {...}

    local function lerp(v,a,b)
        return v*(b()-a())+a()
    end

    local pts = {}
    for i = 1, #points-1, 1 do
        local a,b = points[i],points[i+1]
        table.insert(pts, lerp(t, a, b))
    end
    if #pts > 1 then
        return bezier(t, table.unpack(pts))
    end
    return table.unpack(pts)
end

local pts = {
    Vector2.new(-1,0),
    Vector2.new(0,1),
    Vector2.new(0,-1),
    Vector2.new(1,0)
}
local bez = bezier(0.5, table.unpack(pts))
print(bez)