require "vendor/math"

channel = {}
channel.tomap = love.thread.getChannel("tomap")
channel.blocks = love.thread.getChannel("blocks")

function generateMapBlock(mapWidth, mapHeight)
	local block = {}
	local center = math.ceil( mapWidth/2 )
	local defaultWidth=8

	-- Fill empty
	for y=1, mapHeight do
		local row = {}
		for x=1, mapWidth do
			table.insert(row, 0)
		end

		table.insert(block, row)
	end

	-- Draw simple road
	for y=1, mapHeight do
		for x=center-(defaultWidth/2), center+(defaultWidth/2) do
			block[y][x] = 1
		end
	end

	return block
end

while true do
	local tomap = channel.tomap:pop()
	if tomap then
		if tomap.message == "generateblock" then
			channel.blocks:push(generateMapBlock( tomap.width, tomap.height ))
		end
	end
end