--Adjust the following variables to modify your Circle or Curve.
--To run this levelgen in your level, press Ctrl-R in the Editor.
--To add the created curve to your level, press Ctrl-I after running.

--Item Type
--Choose "BarrierMaker" or "GoalZone" or "LoadoutZone" or "PolyWall"
ItemType = "BarrierMaker"

--Barrier Width of Circle
BarrierWidth = 50

--X Coordinate of Center of Circle
CenterX = 0

--Y Coordinate of Center of Circle
CenterY = 0

--Radius in X Direction of Circle (Keep XRadius and YRadius the same for Circles.  Make them different for elipses.)
XRadius = 1

--Radius in Y Direction of Circle (Keep XRadius and YRadius the same for Circles.  Make them different for elipses.)
YRadius = 1

--Percent of Circle you want to Draw
--Use 1 for 100% of circle, .75 for 75%, etc.
--You may have to use .51 for 50%.
PercentofCircle = 1

--Where you want point 0 of the curve to be
--Use 0 to Start at (1,0)
--Use .5 * math.pi to Start at (0,-1)
--Use math.pi to Start at (-1,0)
--Use 1.5 * math.pi to Start at (0,1)
StartPoint = 1

--For Higher Resolution Curves, use a higher number.
--Some values might produce curves with too many points to plot.
--if PercentofCircle = 1, lower values will produce regular polygons.
--Suggested Resolutions: 30 or 60
Resolution = 90

-----------------------------------
--Do not edit the following code.--
-----------------------------------
if(ItemType=="BarrierMaker") then
    Curve = ItemType .. " " .. BarrierWidth .. " "
elseif(ItemType=="PolyWall") then
    Curve = ItemType .. " "
else
    Curve = ItemType .. " 0 "
end

Destination = PercentofCircle * 2 * math.pi + StartPoint
for x = StartPoint, Destination,  2 * math.pi / Resolution do
    Curve = Curve .. XRadius * math.cos(x) + CenterX .. " " .. YRadius * math.sin(x) - CenterY .. "  "
end

if(PercentofCircle == 1) then
    Curve = Curve .. XRadius * math.cos(StartPoint) + CenterX .. " " .. YRadius * math.sin(StartPoint) - CenterY .. "  "
end

levelgen:addLevelLine(Curve)