ComfyFactorio/modules/scrap_towny_ffa/unearthing_worm.lua

local math_random = math.random
local math_ceil = math.ceil

local Table = require 'modules.scrap_towny_ffa.table'

local function create_particles(surface, position, amount)
    if not surface.valid then
        return
    end
    for _ = 1, amount, 1 do
        local m = math_random(8, 24)
        local m2 = m * 0.005

        surface.create_particle(
            {
                name = 'stone-particle',
                position = position,
                frame_speed = 0.1,
                vertical_speed = 0.1,
                height = 0.1,
                movement = {m2 - (math_random(0, m) * 0.01), m2 - (math_random(0, m) * 0.01)}
            }
        )
    end
end

local function spawn_worm(surface, position, evolution_index)
    if not surface.valid then
        return
    end
    local worm_raffle_table = {
        [1] = {'small-worm-turret', 'small-worm-turret', 'small-worm-turret', 'small-worm-turret', 'small-worm-turret', 'small-worm-turret'},
        [2] = {'small-worm-turret', 'small-worm-turret', 'small-worm-turret', 'small-worm-turret', 'small-worm-turret', 'medium-worm-turret'},
        [3] = {'small-worm-turret', 'small-worm-turret', 'small-worm-turret', 'small-worm-turret', 'medium-worm-turret', 'medium-worm-turret'},
        [4] = {'small-worm-turret', 'small-worm-turret', 'small-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'medium-worm-turret'},
        [5] = {'small-worm-turret', 'small-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'big-worm-turret'},
        [6] = {'small-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'big-worm-turret'},
        [7] = {'medium-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'big-worm-turret', 'big-worm-turret'},
        [8] = {'medium-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'big-worm-turret', 'big-worm-turret'},
        [9] = {'medium-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'big-worm-turret', 'big-worm-turret', 'big-worm-turret'},
        [10] = {'medium-worm-turret', 'medium-worm-turret', 'medium-worm-turret', 'big-worm-turret', 'big-worm-turret', 'big-worm-turret'}
    }
    local raffle = worm_raffle_table[evolution_index]
    local worm_name = raffle[math_random(1, #raffle)]
    surface.create_entity({name = worm_name, position = position})
end

local function unearthing_worm(surface, position, relative_evolution)
    local ffatable = Table.get_table()
    if not surface then
        return
    end
    if not position then
        return
    end
    if not position.x then
        return
    end
    if not position.y then
        return
    end

    local evolution_index = math.ceil(relative_evolution * 10)
    if evolution_index < 1 then
        evolution_index = 1
    end

    for t = 1, 330, 1 do
        if not ffatable.on_tick_schedule[game.tick + t] then
            ffatable.on_tick_schedule[game.tick + t] = {}
        end

        ffatable.on_tick_schedule[game.tick + t][#ffatable.on_tick_schedule[game.tick + t] + 1] = {
            func = create_particles,
            args = {surface, {x = position.x, y = position.y}, math_ceil(t * 0.05)}
        }

        if t == 330 then
            ffatable.on_tick_schedule[game.tick + t][#ffatable.on_tick_schedule[game.tick + t] + 1] = {
                func = spawn_worm,
                args = {surface, {x = position.x, y = position.y}, evolution_index}
            }
        end
    end
end

return unearthing_worm