Lights = {}
LightTimer = 0

function CreateDarkness()
	return love.graphics.newCanvas(game.width, game.height)
end

function CreateLight(x,y,range,lum,flicker)
	local o = {}
	o.pos = {
		x = x,
		y = y
	}
	o.range = range
	o.lum = lum or 1
	o.flicker_value = flicker or 1
	o.flicker = 0
	o.dim = 0
	o.flicker_speed = flicker_speed or 10
	o.flicker_time = 0
	table.insert(Lights,o)
	return o
end

function SetDarkness()
	love.graphics.setColor(0,0,0,1)
	love.graphics.rectangle("fill",0,0,game.width,game.height)
end

function DoLights()

	for _, light in pairs(Lights) do
	light.flicker_time = light.flicker_time + 1

	if light.flicker_time >= light.flicker_speed then
		light.flicker_time = light.flicker_time - light.flicker_speed
			light.flicker = 0 + math.random(-1,1)
			light.flicker = math.min(math.max(light.flicker, -light.flicker_value),light.flicker_value)
		end
	end
--[[
	-- first, border
	love.graphics.setColor(1,1,1)
	for _, light in pairs(Lights) do

	love.graphics.circle(
		"fill",
		light.pos.x - Camera.pos.x,
		light.pos.y - Camera.pos.y,
		light.range + light.flicker + 1
	)
	end
	]]
	love.graphics.setBlendMode("replace")
	for _, enty in pairs(LoadedEntities) do
	end

	local shades = 200
	for i=1, shades do
		for _, light in pairs(Lights) do
			local luminosity = shades*light.lum/100
			love.graphics.setColor(0,0,0,math.min(1,math.max(0,(shades-i-luminosity+1)/(shades-luminosity+1))))
			love.graphics.circle(
				"fill",
				light.pos.x - Camera.pos.x,
				light.pos.y - Camera.pos.y,
				(light.range + light.flicker)*(shades-i+1)/shades
			)
		end
	end
	love.graphics.setBlendMode("alpha")
end

function DoBorder()
end

function DrawDarkness()
	love.graphics.draw(Canvas.Darkness, 0, 0, 0, 0.5, 0.5)
end