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ComfyFactorio/modules/surrounded_by_worms.lua
2021-03-24 20:14:55 +01:00

55 lines
1.9 KiB
Lua

-- this spawns additional worms around the center of the map_gen_settings
-- global.average_worm_amount_per_chunk sets the average amount of worms
-- (default = 1)
local Event = require 'utils.event'
local math_random = math.random
local turrets = {
[1] = 'small-worm-turret',
[2] = 'medium-worm-turret',
[3] = 'big-worm-turret',
[4] = 'behemoth-worm-turret'
}
local tile_coords = {}
for x = 0, 31, 1 do
for y = 0, 31, 1 do
tile_coords[#tile_coords + 1] = {x, y}
end
end
local function on_chunk_generated(event)
local surface = event.surface
if not global.worm_distance then
global.worm_distance = surface.map_gen_settings.starting_area * 200
end
--local starting_distance = surface.map_gen_settings.starting_area * 200
local left_top = event.area.left_top
local chunk_distance_to_center = math.sqrt(left_top.x ^ 2 + left_top.y ^ 2)
if global.worm_distance > chunk_distance_to_center then
return
end
local highest_worm_tier = math.floor((chunk_distance_to_center - global.worm_distance) * 0.002) + 1
if highest_worm_tier > 4 then
highest_worm_tier = 4
end
if not global.average_worm_amount_per_chunk then
global.average_worm_amount_per_chunk = 1
end
local worm_amount = math_random(math.floor(global.average_worm_amount_per_chunk * 0.5), math.ceil(global.average_worm_amount_per_chunk * 1.5))
for _ = 1, worm_amount, 1 do
local coord_modifier = tile_coords[math_random(1, #tile_coords)]
local pos = {left_top.x + coord_modifier[1], left_top.y + coord_modifier[2]}
local name = turrets[math_random(1, highest_worm_tier)]
local position = surface.find_non_colliding_position('big-worm-turret', pos, 8, 1)
if position then
surface.create_entity({name = name, position = position, force = 'enemy'})
end
end
end
Event.add(defines.events.on_chunk_generated, on_chunk_generated)