Factorio Forums

Code: Select all

local shuffle_src = {}

for i = 1,freq do
	for j = 1,freq do
		shuffle_src[i * freq + j] = i * freq + j
	end
end

local shuffle = {}

while 0 < #shuffle_src do
	local p = math.random(1,#shuffle_src)
	table.insert(shuffle, shuffle_src[p])
	table.remove(shuffle_src, p)
end

Code: Select all

playermap_freq = 4
playermap = {}

function update_player_map(m, surface)
	mm = m % #shuffle + 1
	mx = shuffle[mm] % freq
	my = math.floor(shuffle[mm] / freq)
  	for chunk in surface.get_chunks() do
  		if fmod(chunk.x + mx, freq) == 0 and fmod(chunk.y + my, freq) == 0 and
  			0 < surface.count_entities_filtered{area = {{chunk.x * chunksize, chunk.y * chunksize}, {(chunk.x + 1) * chunksize, (chunk.y + 1) * chunksize}}, force = "player"} then
			px = math.floor(chunk.x / 4)
			py = math.floor(chunk.y / 4)
  			if playermap[py] == nil then
  				playermap[py] = {}
  			end

Code: Select all

if not global.player_map then 
    global.player_map = {}

Code: Select all

local function update_player_map(m, surface)

Code: Select all

local function update_global.player_map(m, surface)