//
// This code was written by stom (not davema, who reposted it). 
// For more TTS scripts and mods, see my workshop page: https://steamcommunity.com/id/st0m/myworkshopfiles/
//


function onLoad()
	circle = {
		color             = {0, 0.8, 0.4}, --RGB color of the circle
		radius            = 5,           --radius of the circle around the object
		show              = false,       --should the circle be shown by default?
		steps             = 32,          --number of segments that make up the circle
		thickness         = 0.25,         --thickness of the circle line
		vertical_position = 1,           --vertical height of the circle relative to the object
	}
end

function onDrop()
	if circle then toggleCircle() end
end

function toggleCircle()
	circle.show = not circle.show
	if circle.show then
		self.setVectorLines({
			{
				points    = getCircleVectorPoints(circle.radius, circle.steps, circle.vertical_position),
				color     = circle.color,
				thickness = circle.thickness,
				rotation  = {0,0,0},
			}
		})
	else
		self.setVectorLines({})
	end
end

function getCircleVectorPoints(radius, steps, y)
	local t = {}
	local d,s,c,r = 360/steps, math.sin, math.cos, math.rad
	for i = 0,steps do
		table.insert(t, {
			c(r(d*i))*radius,
			y,
			s(r(d*i))*radius
		})
	end
	return t
end