ComfyFactorio/modules/scrap_towny_ffa/tick_tack_trap.lua

-- timer traps -- by mewmew
local table_insert = table.insert
local math_random = math.random

local Table = require 'modules.scrap_towny_ffa.table'

local tick_tacks = {'*tick*', '*tick*', '*tack*', '*tak*', '*tik*', '*tok*'}

local kaboom_weights = {
    {name = 'grenade', chance = 7},
    {name = 'cluster-grenade', chance = 1},
    {name = 'destroyer-capsule', chance = 1},
    {name = 'defender-capsule', chance = 4},
    {name = 'distractor-capsule', chance = 3},
    {name = 'poison-capsule', chance = 2},
    {name = 'explosive-uranium-cannon-projectile', chance = 3},
    {name = 'explosive-cannon-projectile', chance = 5}
}

local kabooms = {}
for _, t in pairs(kaboom_weights) do
    for _ = 1, t.chance, 1 do
        table_insert(kabooms, t.name)
    end
end

local function create_flying_text(surface, position, text)
    surface.create_entity(
        {
            name = 'flying-text',
            position = position,
            text = text,
            color = {r = 0.75, g = 0.75, b = 0.75}
        }
    )
    if text == '...' then
        return
    end
    surface.play_sound({path = 'utility/armor_insert', position = position, volume_modifier = 0.75})
end

local function create_kaboom(surface, position, name)
    local target = position
    local speed = 0.5
    if name == 'defender-capsule' or name == 'destroyer-capsule' or name == 'distractor-capsule' then
        surface.create_entity(
            {
                name = 'flying-text',
                position = position,
                text = '(((Sentries Engaging Target)))',
                color = {r = 0.8, g = 0.0, b = 0.0}
            }
        )
        local nearest_player_unit = surface.find_nearest_enemy({position = position, max_distance = 128, force = 'enemy'})
        if nearest_player_unit then
            target = nearest_player_unit.position
        end
        speed = 0.001
    end
    surface.create_entity(
        {
            name = name,
            position = position,
            force = 'enemy',
            target = target,
            speed = speed
        }
    )
end

local function tick_tack_trap(surface, position)
    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 tick_tack_count = math_random(5, 9)
    for t = 60, tick_tack_count * 60, 60 do
        if not ffatable.on_tick_schedule[game.tick + t] then
            ffatable.on_tick_schedule[game.tick + t] = {}
        end

        if t < tick_tack_count * 60 then
            ffatable.on_tick_schedule[game.tick + t][#ffatable.on_tick_schedule[game.tick + t] + 1] = {
                func = create_flying_text,
                args = {surface, {x = position.x, y = position.y}, tick_tacks[math_random(1, #tick_tacks)]}
            }
        else
            if math_random(1, 10) == 1 then
                ffatable.on_tick_schedule[game.tick + t][#ffatable.on_tick_schedule[game.tick + t] + 1] = {
                    func = create_flying_text,
                    args = {surface, {x = position.x, y = position.y}, '...'}
                }
            else
                ffatable.on_tick_schedule[game.tick + t][#ffatable.on_tick_schedule[game.tick + t] + 1] = {
                    func = create_kaboom,
                    args = {surface, {x = position.x, y = position.y}, kabooms[math_random(1, #kabooms)]}
                }
            end
        end
    end
end

return tick_tack_trap