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//
// 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