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60 lines
2.1 KiB
Lua
60 lines
2.1 KiB
Lua
--Author: MewMew / (Threaded by Valansch)
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require "map_gen.shared.perlin_noise"
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local Event = require "utils.event"
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--SETTINGS:
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local width_modifier = 0.8
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local ore_base_amounts = {
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["iron-ore"] = 700,
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["coal"] = 400,
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["copper-ore"] = 400,
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["stone"] = 400,
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["uranium-ore"] = 400
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}
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local function init()
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global.perlin_noise_seed = math.random(1000, 1000000)
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end
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Event.on_init(init)
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local function do_resource(name, x, y, world, noise_terrain, noise_band_high, noise_band_low, seed)
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if noise_terrain > -noise_band_high * width_modifier and noise_terrain <= -noise_band_low * width_modifier then
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local noise_resource_amount_modifier = perlin:noise(((x + seed) / 200), ((y + seed) / 200), 0)
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local resource_amount =
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1 +
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((ore_base_amounts[name] + (ore_base_amounts[name] * noise_resource_amount_modifier * 0.2)) *
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world.amount_distance_multiplicator)
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return {name = name, amount = resource_amount}
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end
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end
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return function(x, y, world)
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if not world.amount_distance_multiplicator then
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local distance = math.sqrt(world.x * world.x + world.y * world.y)
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local amount_distance_multiplicator = (((distance + 1) / 75) / 75) + 1
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world.amount_distance_multiplicator = amount_distance_multiplicator
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end
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local entities = world.surface.find_entities_filtered {position = {world.x + 0.5, world.y + 0.5}, type = "resource"}
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for _, e in ipairs(entities) do
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if e.name ~= "crude-oil" then
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e.destroy()
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end
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end
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local seed = global.perlin_noise_seed
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local noise_terrain_1 = perlin:noise(((x + seed) / 350), ((y + seed) / 350), 0)
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local noise_terrain_2 = perlin:noise(((x + seed) / 50), ((y + seed) / 50), 0)
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local noise_terrain = noise_terrain_1 + (noise_terrain_2 * 0.01)
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return do_resource("iron-ore", x, y, world, noise_terrain, 0.1, 0.075, seed) or
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do_resource("copper-ore", x, y, world, noise_terrain, 0.075, 0.05, seed) or
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do_resource("stone", x, y, world, noise_terrain, 0.05, 0.04, seed) or
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do_resource("coal", x, y, world, noise_terrain, 0.04, 0.03, seed) or
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do_resource("uranium-ore", x, y, world, noise_terrain, 0.03, 0.02, seed)
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end
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