local L = love
local G = L.graphics

local R = 10

local canv
function L.load()
	canv = G.newCanvas()
	canv:renderTo(function()
		G.clear(1,1,1)
	end)
	G.setLineWidth(R)
end

local T = 0
function L.update(dt)
	T = T + dt
end


local function line_between(x0,y0,x1,y1)
	canv:renderTo(function()
		G.line(x0,y0,x1,y1)
	end)
end
local function circle(x,y)
	canv:renderTo(function()
		G.circle('fill',x,y,R/2)
	end)
end


local last = nil
function L.draw()
	G.setColor(0,0,0)
	local x,y = L.mouse.getPosition()
	if L.mouse.isDown(1) then
		if last == nil then
			circle(x,y)
			last = {x,y}
		else
			circle(x,y)
			line_between(last[1],last[2],x,y)
			last[1],last[2] = x,y
		end
	elseif last ~= nil then
		circle(x,y)
		line_between(last[1],last[2],x,y)
		last=nil
	end

	G.setColor(1,1,1)
	G.draw(canv)

end