Initial chrono port

2025-10-30 23:47:41 +02:00 · 2024-10-03 00:38:48 +02:00
parent 2b2a05c263
commit eba6e052d2
31 changed files with 592 additions and 549 deletions
--- a/maps/chronosphere/ai.lua
+++ b/maps/chronosphere/ai.lua
@@ -1,8 +1,8 @@
 local Chrono_table = require 'maps.chronosphere.table'
 local Balance = require 'maps.chronosphere.balance'
 local Difficulty = require 'modules.difficulty_vote'
-local Rand = require 'maps.chronosphere.random'
 local Raffle = require 'maps.chronosphere.raffles'
+local AI = require 'utils.functions.AI'
 local Public = {}

 local random = math.random
@@ -24,83 +24,6 @@ local fish_area = { left_top = { -1100, -400 }, right_bottom = { 1100, 400 } }

 -----------commands-----------

-local function move_to(position)
-    local command = {
-        type = defines.command.go_to_location,
-        destination = position,
-        distraction = defines.distraction.by_anything
-    }
-    return command
-end
-
-local function attack_target(target)
-    if not target.valid then
-        return
-    end
-    local command = {
-        type = defines.command.attack,
-        target = target,
-        distraction = defines.distraction.by_anything
-    }
-    return command
-end
-
-local function attack_area(position, radius)
-    local command = {
-        type = defines.command.attack_area,
-        destination = position,
-        radius = radius or 25,
-        distraction = defines.distraction.by_anything
-    }
-    return command
-end
-
-local function attack_obstacles(surface, position)
-    local commands = {}
-    local obstacles = surface.find_entities_filtered { position = position, radius = 25, type = { 'simple-entity', 'tree', 'simple-entity-with-owner' }, limit = 100 }
-    if obstacles then
-        Rand.shuffle(obstacles)
-        Rand.shuffle_distance(obstacles, position)
-        for i = 1, #obstacles, 1 do
-            if obstacles[i].valid then
-                commands[#commands + 1] = {
-                    type = defines.command.attack,
-                    target = obstacles[i],
-                    distraction = defines.distraction.by_anything
-                }
-            end
-        end
-    end
-    commands[#commands + 1] = move_to(position)
-    local command = {
-        type = defines.command.compound,
-        structure_type = defines.compound_command.return_last,
-        commands = commands
-    }
-    return command
-end
-
-local function multicommand(group, commands)
-    if #commands > 0 then
-        local command = {
-            type = defines.command.compound,
-            structure_type = defines.compound_command.return_last,
-            commands = commands
-        }
-        group.set_command(command)
-    end
-end
-
-local function multi_attack(surface, target)
-    surface.set_multi_command(
-        {
-            command = attack_target(target),
-            unit_count = 16 + random(1, floor(1 + game.forces['enemy'].evolution_factor * 100)) * Difficulty.get().difficulty_vote_value,
-            force = 'enemy',
-            unit_search_distance = 1024
-        }
-    )
-end

 ------------------------misc functions----------------------

@@ -141,13 +64,13 @@ local function generate_side_attack_target(surface, position, area)
            goto retry
        end
    end
-    entities = Rand.shuffle(entities)
-    entities = Rand.shuffle_distance(entities, position)
+    table.shuffle_table(entities)
+    table.shuffle_by_distance(entities, position)
    local weights = {}
    for index, _ in pairs(entities) do
        weights[#weights + 1] = 1 + floor((#entities - index) / 2)
    end
-    return Rand.raffle(entities, weights)
+    return table.get_random_weighted_t(entities, weights)
 end

 local function generate_main_attack_target()
@@ -173,13 +96,13 @@ local function get_random_close_spawner(surface)
    if not spawners[1] then
        return false
    end
-    spawners = Rand.shuffle(spawners)
-    spawners = Rand.shuffle_distance(spawners, objective.locomotive.position)
+    table.shuffle_table(spawners)
+    table.shuffle_by_distance(spawners, objective.locomotive.position)
    local weights = {}
    for index, _ in pairs(spawners) do
        weights[#weights + 1] = 1 + floor((#spawners - index) / 2)
    end
-    return Rand.raffle(spawners, weights), area
+    return table.get_random_weighted_t(spawners, weights), area
 end

 local function is_biter_inactive(biter)
@@ -189,10 +112,10 @@ local function is_biter_inactive(biter)
    if not biter.entity.valid then
        return true
    end
-    if not biter.entity.unit_group then
+    if not biter.entity.commandable then
        return true
    end
-    if not biter.entity.unit_group.valid then
+    if not biter.entity.commandable.valid then
        return true
    end
    if game.tick - biter.active_since > 162000 then
@@ -258,10 +181,10 @@ local function select_units_around_spawner(spawner, size)
                local local_pollution =
                    math.min(
                        spawner.surface.get_pollution(spawner.position),
-                        400 * game.map_settings.pollution.enemy_attack_pollution_consumption_modifier * game.forces.enemy.evolution_factor
+                        400 * game.map_settings.pollution.enemy_attack_pollution_consumption_modifier * game.forces.enemy.get_evolution_factor(spawner.surface)
                    )
                spawner.surface.pollute(spawner.position, -local_pollution)
-                game.pollution_statistics.on_flow('biter-spawner', -local_pollution)
+                game.get_pollution_statistics(spawner.surface).on_flow('biter-spawner', -local_pollution)
                if local_pollution < 1 then
                    break
                end
@@ -290,7 +213,7 @@ local function pollution_requirement(surface, position, main)
    end
    if pollution > multiplier * pollution_to_eat then
        surface.pollute(position, -pollution_to_eat)
-        game.pollution_statistics.on_flow('small-biter', -pollution_to_eat)
+        game.get_pollution_statistics(surface).on_flow('small-biter', -pollution_to_eat)
        return true
    end
    return false
@@ -343,14 +266,14 @@ end
 local function colonize(group)
    --if _DEBUG then game.print(game.tick ..": colonizing") end
    local surface = group.surface
-    local evo = group.force.evolution_factor
+    local evo = group.force.get_evolution_factor(surface)
    local nests = random(1 + floor(evo * 20), 2 + floor(evo * 20) * 2)
    local commands = {}
    local biters = surface.find_entities_filtered { position = group.position, radius = 30, name = Raffle.biters, force = 'enemy' }
    local goodbiters = {}
    if #biters > 1 then
        for i = 1, #biters, 1 do
-            if biters[i].unit_group == group then
+            if biters[i].commandable == group then
                goodbiters[#goodbiters + 1] = biters[i]
            end
        end
@@ -381,7 +304,7 @@ local function colonize(group)
            end
        else
            commands = {
-                attack_obstacles(surface, group.position)
+                AI.command_attack_obstacles(surface, group.position)
            }
        end
    end
@@ -395,7 +318,7 @@ local function colonize(group)
    end
    if #commands > 0 then
        --game.print("Attacking [gps=" .. commands[1].target.position.x .. "," .. commands[1].target.position.y .. "]")
-        multicommand(group, commands)
+        AI.multicommand(group, commands)
    end
 end

@@ -412,7 +335,7 @@ local function send_near_biters_to_objective()
        if _DEBUG then
            game.print(game.tick .. ': sending objective wave')
        end
-        multi_attack(target.surface, target)
+        AI.multi_attack(target.surface, target, game.forces.enemy)
    end
 end

@@ -420,16 +343,16 @@ local function attack_check(group, target, main)
    local commands
    if pollution_requirement(group.surface, target.position, main) then
        commands = {
-            attack_target(target),
-            attack_area(target.position, 32)
+            AI.command_attack_target(target),
+            AI.command_attack_area(target.position, 32)
        }
    else
        local position = generate_expansion_position(group.position)
        commands = {
-            attack_obstacles(group.surface, position)
+            AI.command_attack_obstacles(group.surface, position)
        }
    end
-    multicommand(group, commands)
+    AI.multicommand(group, commands)
 end

 local function give_new_orders(group)
@@ -442,10 +365,10 @@ local function give_new_orders(group)
        return
    end
    local commands = {
-        attack_target(target),
-        attack_area(target.position, 32)
+        AI.command_attack_target(target),
+        AI.command_attack_area(target.position, 32)
    }
-    multicommand(group, commands)
+    AI.multicommand(group, commands)
 end

 ------------------------- tick minute functions--------------------
@@ -453,7 +376,7 @@ end
 local function destroy_inactive_biters()
    local bitertable = Chrono_table.get_biter_table()
    for unit_number, biter in pairs(bitertable.active_biters) do
-        if is_biter_inactive(biter, unit_number) then
+        if is_biter_inactive(biter) then
            bitertable.active_biters[unit_number] = nil
            bitertable.free_biters = bitertable.free_biters + 1
        end
--- a/maps/chronosphere/balance.lua
+++ b/maps/chronosphere/balance.lua
@@ -235,24 +235,24 @@ Public.dayspeed_weights = {
 }
 function Public.market_offers()
    return {
-        {price = {{'coin', 40}}, offer = {type = 'give-item', item = 'raw-fish'}},
-        {price = {{'coin', 40}}, offer = {type = 'give-item', item = 'wood', count = 50}},
-        {price = {{'coin', 100}}, offer = {type = 'give-item', item = 'iron-ore', count = 50}},
-        {price = {{'coin', 100}}, offer = {type = 'give-item', item = 'copper-ore', count = 50}},
-        {price = {{'coin', 100}}, offer = {type = 'give-item', item = 'stone', count = 50}}, -- needed?
-        {price = {{'coin', 100}}, offer = {type = 'give-item', item = 'coal', count = 50}},
-        {price = {{'coin', 400}}, offer = {type = 'give-item', item = 'uranium-ore', count = 50}},
-        {price = {{'coin', 50}, {'empty-barrel', 1}}, offer = {type = 'give-item', item = 'crude-oil-barrel', count = 1}},
-        {price = {{'coin', 500}, {'steel-plate', 20}, {'electronic-circuit', 20}}, offer = {type = 'give-item', item = 'loader', count = 1}},
+        {price = {{name = 'coin', count = 40}}, offer = {type = 'give-item', item = 'raw-fish'}},
+        {price = {{name = 'coin', count = 40}}, offer = {type = 'give-item', item = 'wood', count = 50}},
+        {price = {{name = 'coin', count = 100}}, offer = {type = 'give-item', item = 'iron-ore', count = 50}},
+        {price = {{name = 'coin', count = 100}}, offer = {type = 'give-item', item = 'copper-ore', count = 50}},
+        {price = {{name = 'coin', count = 100}}, offer = {type = 'give-item', item = 'stone', count = 50}}, -- needed?
+        {price = {{name = 'coin', count = 100}}, offer = {type = 'give-item', item = 'coal', count = 50}},
+        {price = {{name = 'coin', count = 400}}, offer = {type = 'give-item', item = 'uranium-ore', count = 50}},
+        {price = {{name = 'coin', count = 50}, {name = 'barrel', count = 1}}, offer = {type = 'give-item', item = 'crude-oil-barrel', count = 1}},
+        {price = {{name = 'coin', count = 500}, {name = 'steel-plate', count = 20}, {name = 'electronic-circuit', count = 20}}, offer = {type = 'give-item', item = 'loader', count = 1}},
        {
-            price = {{'coin', 1000}, {'steel-plate', 40}, {'advanced-circuit', 10}, {'loader', 1}},
+            price = {{name = 'coin', count = 1000}, {name = 'steel-plate', count = 40}, {name = 'advanced-circuit', count = 10}, {name = 'loader', count = 1}},
            offer = {type = 'give-item', item = 'fast-loader', count = 1}
        },
        {
-            price = {{'coin', 3000}, {'express-transport-belt', 10}, {'fast-loader', 1}},
+            price = {{name = 'coin', count = 3000}, {name = 'express-transport-belt', count = 10}, {name = 'fast-loader', count = 1}},
            offer = {type = 'give-item', item = 'express-loader', count = 1}
        },
-        {price = {{'coin', 2}, {'steel-plate', 1}, {'explosives', 10}}, offer = {type = 'give-item', item = 'land-mine', count = 1}}
+        {price = {{name = 'coin', count = 2}, {name = 'steel-plate', count = 1}, {name = 'explosives', count = 10}}, offer = {type = 'give-item', item = 'land-mine', count = 1}}
    }
 end
 function Public.initial_cargo_boxes()
@@ -262,7 +262,7 @@ function Public.initial_cargo_boxes()
        {name = 'coal', count = math_random(32, 64)},
        {name = 'iron-ore', count = math_random(32, 128)},
        {name = 'copper-ore', count = math_random(32, 128)},
-        {name = 'empty-barrel', count = math_random(16, 32)},
+        {name = 'barrel', count = math_random(16, 32)},
        {name = 'submachine-gun', count = 1},
        {name = 'submachine-gun', count = 1},
        {name = 'shotgun', count = 1},
@@ -324,7 +324,7 @@ function Public.scrap()
        ['processing-unit'] = {amount = 2, chance = 1},
        ['used-up-uranium-fuel-cell'] = {amount = 1, chance = 4},
        ['uranium-fuel-cell'] = {amount = 0.3, chance = 1},
-        ['rocket-control-unit'] = {amount = 0.3, chance = 1},
+        --['rocket-control-unit'] = {amount = 0.3, chance = 1},
        ['low-density-structure'] = {amount = 0.5, chance = 2},
        ['heat-pipe'] = {amount = 1, chance = 1},
        ['engine-unit'] = {amount = 3, chance = 3},
@@ -353,7 +353,7 @@ function Public.scrap()
        ['rocket-fuel'] = {amount = 0.3, chance = 8},
        ['grenade'] = {amount = 0.3, chance = 40},
        ['solid-fuel'] = {amount = 0.4, chance = 50},
-        ['empty-barrel'] = {amount = 0.1, chance = 50},
+        ['barrel'] = {amount = 0.1, chance = 50},
        ['crude-oil-barrel'] = {amount = 0.1, chance = 70},
        ['lubricant-barrel'] = {amount = 0.1, chance = 40},
        ['petroleum-gas-barrel'] = {amount = 0.1, chance = 60},
@@ -375,8 +375,8 @@ function Public.scrap()
            table.insert(second_raffle, {name = k, amount = t.amount})
        end
    end
-    Rand.shuffle(scrap_raffle)
-    Rand.shuffle(second_raffle)
+    table.shuffle_table(scrap_raffle)
+    table.shuffle_table(second_raffle)

    return {main = scrap_raffle, second = second_raffle}
 end
--- a/maps/chronosphere/chrono.lua
+++ b/maps/chronosphere/chrono.lua
@@ -11,22 +11,28 @@ local Server = require 'utils.server'
 local math_random = math.random
 local math_max = math.max

-function Public.get_map_gen_settings()
+function Public.get_map_gen_settings(planet_name)
    local seed = math_random(1, 1000000)
-    local map_gen_settings = {
-        ['seed'] = seed,
-        ['width'] = 960,
-        ['height'] = 960,
-        ['water'] = 0.1,
-        ['starting_area'] = 1,
-        ['cliff_settings'] = {cliff_elevation_interval = 0, cliff_elevation_0 = 0},
-        ['default_enable_all_autoplace_controls'] = true,
-        ['autoplace_settings'] = {
-            ['entity'] = {treat_missing_as_default = false},
-            ['tile'] = {treat_missing_as_default = true},
-            ['decorative'] = {treat_missing_as_default = true}
-        }
-    }
+    local map_gen_settings = prototypes.space_location['nauvis'].map_gen_settings
+    -- if planet_name then
+    --     map_gen_settings = prototypes.space_location[planet_name].map_gen_settings
+    -- else
+    --     map_gen_settings = {
+    --         ['water'] = 0.1,
+    --         ['default_enable_all_autoplace_controls'] = true,
+    --         ['autoplace_settings'] = {
+    --             ['entity'] = {treat_missing_as_default = false},
+    --             ['tile'] = {treat_missing_as_default = true},
+    --             ['decorative'] = {treat_missing_as_default = true}
+    --         }
+    --     }
+    -- end
+    map_gen_settings.seed = seed
+    map_gen_settings.width = 960
+    map_gen_settings.height = 960
+    map_gen_settings.starting_area = 1
+    map_gen_settings.cliff_settings = {name = 'cliff', cliff_elevation_interval = 0, cliff_elevation_0 = 0, cliff_smoothing = 0.5, richness = 0}
+    map_gen_settings.default_enable_all_autoplace_controls = false
    return map_gen_settings
 end

@@ -115,9 +121,9 @@ function Public.restart_settings()
    for _, player in pairs(game.connected_players) do
        playertable.flame_boots[player.index] = {fuel = 1, steps = {}}
    end
-    global.friendly_fire_history = {}
-    global.landfill_history = {}
-    global.mining_history = {}
+    storage.friendly_fire_history = {}
+    storage.landfill_history = {}
+    storage.mining_history = {}
    get_score.score_table = {}

    game.difficulty_settings.technology_price_multiplier = Balance.Tech_price_multiplier
@@ -150,18 +156,18 @@ function Public.restart_settings()
    game.map_settings.path_finder.long_cache_size = 100
    game.map_settings.unit_group.max_gathering_unit_groups = 10
    game.forces.neutral.character_inventory_slots_bonus = 500
-    game.forces.enemy.evolution_factor = 0.0001
+    game.forces.enemy.set_evolution_factor(0.0001)
    game.forces.scrapyard.set_friend('enemy', true)
    game.forces.enemy.set_friend('scrapyard', true)
    game.forces.enemy.set_ammo_damage_modifier('rocket', -0.5)
    game.forces.player.technologies['land-mine'].enabled = false
    game.forces.player.technologies['landfill'].enabled = false
    game.forces.player.technologies['cliff-explosives'].enabled = false
-    game.forces.player.technologies['fusion-reactor-equipment'].enabled = false
+    game.forces.player.technologies['fission-reactor-equipment'].enabled = false
    game.forces.player.technologies['power-armor-mk2'].enabled = false
    game.forces.player.technologies['railway'].researched = true
    game.forces.player.recipes['pistol'].enabled = false
-    game.forces.player.ghost_time_to_live = 15 * 60 * 60
+    --game.forces.player.ghost_time_to_live = 15 * 60 * 60
 end

 function Public.set_difficulty_settings()
@@ -331,10 +337,11 @@ function Public.post_jump()
    local difficulty = Difficulty.get().difficulty_vote_value

    game.forces.enemy.reset_evolution()
+    local surface = game.get_surface(objective.active_surface_index)
    if objective.chronojumps + objective.overstaycount <= 40 and objective.world.id ~= 7 then
-        game.forces.enemy.evolution_factor = 0 + 0.025 * (objective.chronojumps + objective.overstaycount)
+        game.forces.enemy.set_evolution_factor(0 + 0.025 * (objective.chronojumps + objective.overstaycount), surface)
    else
-        game.forces.enemy.evolution_factor = 1
+        game.forces.enemy.set_evolution_factor(1, surface)
    end
    if objective.world.id == 7 then
        objective.locomotive_cargo[1].insert({name = 'space-science-pack', count = 1000})
@@ -367,7 +374,7 @@ function Public.post_jump()
    game.forces.enemy.set_ammo_damage_modifier('melee', 0.1 * objective.overstaycount)
    game.forces.enemy.set_ammo_damage_modifier('biological', 0.1 * objective.overstaycount)
    game.map_settings.pollution.enemy_attack_pollution_consumption_modifier = Balance.defaultai_attack_pollution_consumption_modifier(difficulty)
-    game.map_settings.pollution.max_unit_group_size = Balance.max_new_attack_group_size(difficulty)
+    --game.map_settings.pollution.max_unit_group_size = Balance.max_new_attack_group_size(difficulty)

    if objective.chronojumps == 1 then
        if difficulty < 1 then
@@ -403,7 +410,7 @@ local function create_chunk_list(surface)
            chunks[#chunks + 1] = {pos = {x, y}, generated = surface.is_chunk_generated({x, y}), distance = math.sqrt(x * x + y * y)}
        end
    end
-    for k, v in Rand.spairs(
+    for k, v in table.spairs(
        chunks,
        function(t, a, b)
            return t[b].distance > t[a].distance
--- a/maps/chronosphere/comfylatron.lua
+++ b/maps/chronosphere/comfylatron.lua
@@ -4,6 +4,7 @@ local math_random = math.random
 local Rand = require 'maps.chronosphere.random'
 local Balance = require 'maps.chronosphere.balance'
 local Difficulty = require 'modules.difficulty_vote'
+local FT = require 'utils.functions.flying_texts'
 local Public = {}

 local texts = {
@@ -294,6 +295,15 @@ local texts = {
    }
 }

+local function get_comfylatron_kind()
+    local SA = script.active_mods['space-travel']
+    if SA then
+        return 'small-strafer-pentapod'
+    else
+        return 'behemoth-biter'
+    end
+end
+
 local function set_comfy_speech_bubble(text)
    local objective = Chrono_table.get_table()
    if objective.comfybubble then
@@ -365,7 +375,7 @@ local function visit_player()
    end
    local player = players[math_random(1, #players)]

-    objective.comfylatron.set_command(
+    objective.comfylatron.commandable.set_command(
        {
            type = defines.command.go_to_location,
            destination_entity = player.character,
@@ -509,16 +519,16 @@ local function desync(event)
        )
    end
    local blocked = false
-    if not objective.comfylatron.surface.find_non_colliding_position('compilatron', objective.comfylatron.position, 0.5, 0.1) then
+    if not objective.comfylatron.surface.find_non_colliding_position(get_comfylatron_kind(), objective.comfylatron.position, 0.5, 0.1) then
        blocked = true
    end
    if not event or blocked or math_random(1, 5) == 1 then
        objective.comfylatron.surface.create_entity({name = 'medium-explosion', position = objective.comfylatron.position})
-        objective.comfylatron.surface.create_entity({name = 'flying-text', position = objective.comfylatron.position, text = 'desync', color = {r = 150, g = 0, b = 0}})
+        FT.flying_text(nil, objective.comfylatron.surface, objective.comfylatron.position, 'desync', {r = 150, g = 0, b = 0})
        objective.comfylatron.destroy()
        objective.comfylatron = nil
    else
-        objective.comfylatron.surface.create_entity({name = 'flying-text', position = objective.comfylatron.position, text = 'desync evaded', color = {r = 0, g = 150, b = 0}})
+        FT.flying_text(nil, objective.comfylatron.surface, objective.comfylatron.position, 'desync evaded', {r = 0, g = 150, b = 0})
        if event.cause then
            if event.cause.valid and event.cause.player then
                game.print({'chronosphere.message_comfylatron_desync', event.cause.player.name}, {r = 200, g = 0, b = 0})
@@ -547,7 +557,8 @@ local function alone()
 end

 local analyze_blacklist = {
-    ['compilatron'] = true,
+    ['small-strafer-pentapod'] = true,
+    ['behemoth-biter'] = true,
    ['car'] = true,
    ['compi-speech-bubble'] = true,
    ['entity-ghost'] = true,
@@ -572,7 +583,7 @@ local function analyze_random_nearby_entity()
    if not entities[1] then
        return false
    end
-    entities = Rand.shuffle(entities)
+    table.shuffle_table(entities)
    local entity = false
    for _, e in pairs(entities) do
        if not analyze_blacklist[e.name] then
@@ -603,7 +614,7 @@ local function analyze_random_nearby_entity()
    set_comfy_speech_bubble(str)

    if not objective.comfylatron_greet_player_index then
-        objective.comfylatron.set_command(
+        objective.comfylatron.commandable.set_command(
            {
                type = defines.command.go_to_location,
                destination_entity = entity,
@@ -640,7 +651,7 @@ local function go_to_some_location()
            objective.comfylatron_greet_player_index = nil
            return false
        end
-        objective.comfylatron.set_command(
+        objective.comfylatron.commandable.set_command(
            {
                type = defines.command.go_to_location,
                destination_entity = player.character,
@@ -655,14 +666,14 @@ local function go_to_some_location()
        )
    else
        local p = {x = objective.comfylatron.position.x + (-96 + math_random(0, 192)), y = objective.comfylatron.position.y + (-96 + math_random(0, 192))}
-        local target = objective.comfylatron.surface.find_non_colliding_position('compilatron', p, 8, 1)
+        local target = objective.comfylatron.surface.find_non_colliding_position(get_comfylatron_kind(), p, 8, 1)
        if not target then
            return false
        end
        if not is_target_inside_habitat(target, objective.comfylatron.surface) then
            return false
        end
-        objective.comfylatron.set_command(
+        objective.comfylatron.commandable.set_command(
            {
                type = defines.command.go_to_location,
                destination = target,
@@ -707,7 +718,7 @@ local function spawn_comfylatron(surface_index, x, y)
    objective.comfylatron =
        surface.create_entity(
        {
-            name = 'compilatron',
+            name = get_comfylatron_kind(),
            position = {x, y + math_random(0, 256)},
            force = 'player',
            create_build_effect_smoke = false
--- a/maps/chronosphere/event_functions.lua
+++ b/maps/chronosphere/event_functions.lua
@@ -8,6 +8,7 @@ local Public = {}
 local tick_tack_trap = require 'utils.functions.tick_tack_trap'
 local unearthing_worm = require 'utils.functions.unearthing_worm'
 local unearthing_biters = require 'utils.functions.unearthing_biters'
+local FT = require 'utils.functions.flying_texts'

 local math_random = math.random
 local math_floor = math.floor
@@ -59,17 +60,6 @@ local function reward_ores(amount, mined_loot, surface, player, entity)
    end
 end

-local function flying_text(surface, position, text, color)
-    surface.create_entity(
-        {
-            name = 'flying-text',
-            position = {position.x, position.y - 0.5},
-            text = text,
-            color = color
-        }
-    )
-end
-
 function Public.biters_chew_rocks_faster(event)
    if not event.cause then
        return
@@ -123,7 +113,7 @@ end
 function Public.lava_planet(event)
    local playertable = Chrono_table.get_player_table()
    local player = game.get_player(event.player_index)
-    if not player.character then
+    if not player or not player.character then
        return
    end
    if player.character.driving then
@@ -159,7 +149,7 @@ function Public.lava_planet(event)
 end

 function Public.shred_simple_entities(entity)
-    if game.forces.enemy.evolution_factor < 0.25 then
+    if game.forces.enemy.get_evolution_factor(entity.surface) < 0.25 then
        return
    end
    local simple_entities = entity.surface.find_entities_filtered({type = {'simple-entity', 'tree'}, area = {{entity.position.x - 3, entity.position.y - 3}, {entity.position.x + 3, entity.position.y + 3}}})
@@ -175,7 +165,7 @@ function Public.spawner_loot(surface, position)
        local objective = Chrono_table.get_table()
        local count = math_random(1, 1 + objective.chronojumps)
        objective.research_tokens.weapons = objective.research_tokens.weapons + count
-        flying_text(surface, position, {'chronosphere.token_weapons_add', count}, {r = 0.8, g = 0.8, b = 0.8})
+        FT.flying_text(nil, surface, position, {'chronosphere.token_weapons_add', count}, {r = 0.8, g = 0.8, b = 0.8})
        script.raise_event(Chrono_table.events['update_upgrades_gui'], {})
    end
 end
@@ -217,7 +207,7 @@ function Public.choppy_loot(event)
        local main_item = choppy_entity_yield[entity.name][math_random(1, #choppy_entity_yield[entity.name])]
        local text = '+' .. amount .. ' [item=' .. main_item .. '] +' .. second_item_amount .. ' [item=' .. second_item .. ']'
        local player = game.get_player(event.player_index)
-        flying_text(entity.surface, entity.position, text, {r = 0.8, g = 0.8, b = 0.8})
+        FT.flying_text(player, entity.surface, entity.position, text, {r = 0.8, g = 0.8, b = 0.8})
        reward_ores(amount, main_item, entity.surface, player, player)
        reward_ores(second_item_amount, second_item, entity.surface, player, player)
    end
@@ -225,11 +215,12 @@ end

 function Public.rocky_loot(event)
    local player = game.get_player(event.player_index)
+    if not player or not player.valid then return end
    local amount = math_ceil(get_ore_amount(false))
    local rock_mining = {'iron-ore', 'iron-ore', 'iron-ore', 'iron-ore', 'copper-ore', 'copper-ore', 'copper-ore', 'stone', 'stone', 'coal', 'coal'}
    local mined_loot = rock_mining[math_random(1, #rock_mining)]
    local text = '+' .. amount .. ' [item=' .. mined_loot .. ']'
-    flying_text(player.surface, player.position, text, {r = 0.98, g = 0.66, b = 0.22})
+    FT.flying_text(player, player.surface, player.position, text, {r = 0.98, g = 0.66, b = 0.22})
    reward_ores(amount, mined_loot, player.surface, player, player)
    reward_ores(math_random(1, 3), 'raw-fish', player.surface, player, player)
 end
@@ -242,13 +233,14 @@ function Public.scrap_loot(event)
    local amount = math_ceil(get_ore_amount(true) * scrap.amount)
    local amount2 = math_ceil(get_ore_amount(true) * scrap2.amount)
    local player = game.get_player(event.player_index)
+    if not player or not player.valid then return end
    local text = '+' .. amount .. ' [item=' .. scrap.name .. '] + ' .. amount2 .. ' [item=' .. scrap2.name .. ']'
-    flying_text(player.surface, player.position, text, {r = 0.98, g = 0.66, b = 0.22})
+    FT.flying_text(player, player.surface, player.position, text, {r = 0.98, g = 0.66, b = 0.22})
    reward_ores(amount, scrap.name, player.surface, player, player)
    reward_ores(amount2, scrap2.name, player.surface, player, player)
    if math_random(1, 50) == 1 then
        objective.research_tokens.tech = objective.research_tokens.tech + 1
-        flying_text(player.surface, {x = player.position.x, y = player.position.y - 0.5}, {'chronosphere.token_tech_add', 1}, {r = 0.8, g = 0.8, b = 0.8})
+        FT.flying_text(player, player.surface, {x = player.position.x, y = player.position.y - 0.5}, {'chronosphere.token_tech_add', 1}, {r = 0.8, g = 0.8, b = 0.8})
    end
 end

@@ -284,7 +276,7 @@ function Public.swamp_loot(event)
    local mined_loot = rock_mining[math_random(1, #rock_mining)]
    reward_ores(amount, mined_loot, surface, nil, event.entity)
    local text = '+' .. amount .. ' [img=item/' .. mined_loot .. ']'
-    flying_text(surface, event.entity.position, text, {r = 0.7, g = 0.8, b = 0.4})
+    FT.flying_text(nil, surface, event.entity.position, text, {r = 0.7, g = 0.8, b = 0.4})
 end

 function Public.biter_loot(event)
@@ -308,8 +300,8 @@ function Public.danger_silo(entity)
                    objective.dangers[i].solar.destroy()
                    objective.dangers[i].acu.destroy()
                    objective.dangers[i].pole.destroy()
-                    rendering.destroy(objective.dangers[i].text)
-                    rendering.destroy(objective.dangers[i].timer)
+                    objective.dangers[i].text.destroy()
+                    objective.dangers[i].timer.destroy()
                    objective.dangers[i].text = -1
                    objective.dangers[i].timer = -1
                end
@@ -426,12 +418,12 @@ function Public.on_technology_effects_reset(event)

        local fake_event = {}
        Public.mining_buffs(nil)
-        for tech, bonuses in pairs(mining_researches) do
-            tech = force.technologies[tech]
-            if tech.researched == true or bonuses.infinite == true then
-                fake_event.research = tech
-                if bonuses.infinite and bonuses.infinite_level and tech.level > bonuses.infinite_level then
-                    for i = bonuses.infinite_level, tech.level - 1 do
+        for name, bonuses in pairs(mining_researches) do
+            technology = force.technologies[name]
+            if technology.researched == true or bonuses.infinite == true then
+                fake_event.research = technology
+                if bonuses.infinite and bonuses.infinite_level and technology.level > bonuses.infinite_level then
+                    for i = bonuses.infinite_level, technology.level - 1 do
                        Public.mining_buffs(fake_event)
                    end
                else
@@ -462,8 +454,11 @@ function Public.render_train_hp()
        rendering.draw_text {
        text = {'chronosphere.train_HP', objective.health, objective.max_health},
        surface = surface,
-        target = objective.locomotive,
-        target_offset = {0, -2.5},
+        target = {
+            entity = objective.locomotive,
+            offset = {0, -2.5},
+            position = objective.locomotive.position
+        },
        color = objective.locomotive.color,
        scale = 1.40,
        font = 'default-game',
@@ -474,8 +469,11 @@ function Public.render_train_hp()
        rendering.draw_text {
        text = {'chronosphere.train_name'},
        surface = surface,
-        target = objective.locomotive,
-        target_offset = {0, -4.25},
+        target = {
+            entity = objective.locomotive,
+            offset = {0, -4.25},
+            position = objective.locomotive.position
+        },
        color = objective.locomotive.color,
        scale = 1.80,
        font = 'default-game',
@@ -500,7 +498,7 @@ function Public.set_objective_health(final_damage_amount)
    if objective.health < objective.max_health / 2 and final_damage_amount > 0 then
        Upgrades.trigger_poison()
    end
-    rendering.set_text(objective.health_text, {'chronosphere.train_HP', objective.health, objective.max_health})
+    objective.health_text.text = {'chronosphere.train_HP', objective.health, objective.max_health}
 end

 function Public.nuclear_artillery(entity, cause)
--- a/maps/chronosphere/gui.lua
+++ b/maps/chronosphere/gui.lua
@@ -40,8 +40,7 @@ local function create_gui(player)
    label.style.minimal_width = 10
    label.style.font_color = {r = 255, g = 200, b = 200}

-    local progressbar = frame.add({type = 'progressbar', name = 'progressbar', value = 0})
-    progressbar.style = 'achievement_progressbar'
+    local progressbar = frame.add({type = 'progressbar', name = 'progressbar', value = 0, style = 'achievement_progressbar'})
    progressbar.style.minimal_width = 96
    progressbar.style.maximal_width = 96
    progressbar.style.top_padding = 1
@@ -238,7 +237,7 @@ local function update_world_gui(player)
    local difficulty = Difficulty.get().difficulty_vote_value
    local overstay_jump = Balance.jumps_until_overstay_is_on(difficulty) or 3
    local world = objective.world
-    local evolution = game.forces['enemy'].evolution_factor
+    local evolution = game.forces['enemy'].get_evolution_factor(game.get_surface(objective.active_surface_index))
    local evo_color = {
        r = math_floor(255 * 1 * math_max(0, math_min(1, 1.2 - evolution * 2))),
        g = math_floor(255 * 1 * math_max(math_abs(0.5 - evolution * 1.5), 1 - evolution * 4)),
@@ -254,7 +253,7 @@ local function update_world_gui(player)
    frame['world_ores']['uranium-ore'].number = world.variant.u
    frame['world_ores']['oil'].number = world.variant.o
    frame['richness'].caption = {'chronosphere.gui_world_2', world.ores.name}
-    frame['world_biters'].caption = {'chronosphere.gui_world_3', math_floor(evolution * 100, 1)}
+    frame['world_biters'].caption = {'chronosphere.gui_world_3', math_floor(evolution * 100)}
    frame['world_biters'].style.font_color = evo_color

    frame['world_biters3'].caption = {'chronosphere.gui_world_4_1', objective.overstaycount * 2.5, objective.overstaycount * 10}
@@ -291,7 +290,7 @@ local function world_gui(player)
    end
    local objective = Chrono_table.get_table()
    local world = objective.world
-    local evolution = game.forces['enemy'].evolution_factor
+    local evolution = game.forces['enemy'].get_evolution_factor(game.get_surface(objective.active_surface_index))
    local frame = player.gui.screen.add {type = 'frame', name = 'gui_world', caption = {'chronosphere.gui_world_button'}, direction = 'vertical'}
    frame.location = {x = 650, y = 45}
    frame.style.minimal_height = 300
@@ -310,7 +309,7 @@ local function world_gui(player)
    frame.add({type = 'label', name = 'richness', caption = {'chronosphere.gui_world_2', world.ores.name}})
    frame.add({type = 'label', name = 'world_time', caption = {'chronosphere.gui_world_5', world.dayspeed.name}})
    frame.add({type = 'line'})
-    frame.add({type = 'label', name = 'world_biters', caption = {'chronosphere.gui_world_3', math_floor(evolution * 100, 1)}})
+    frame.add({type = 'label', name = 'world_biters', caption = {'chronosphere.gui_world_3', math_floor(evolution * 100)}})
    frame.add({type = 'label', name = 'world_biters2', caption = {'chronosphere.gui_world_4'}})
    frame.add({type = 'label', name = 'world_biters3', caption = {'chronosphere.gui_world_4_1', objective.overstaycount * 2.5, objective.overstaycount * 10}})
    frame.add({type = 'line'})
--- a/maps/chronosphere/main.lua
+++ b/maps/chronosphere/main.lua
@@ -43,10 +43,11 @@ local function reset_map()
    Worlds.determine_world(nil)
    local world = objective.world
    if not objective.active_surface_index then
-        objective.active_surface_index = game.create_surface('chronosphere', Chrono.get_map_gen_settings()).index
+        objective.active_surface_index = game.create_surface('chronosphere', Chrono.get_map_gen_settings(world.planet_name)).index
+        --/c game.create_surface("pizza", prototypes.space_location["gleba"].map_gen_settings)
    else
        game.forces.player.set_spawn_position({12, 10}, game.surfaces[objective.active_surface_index])
-        objective.active_surface_index = Reset.soft_reset_map(game.surfaces[objective.active_surface_index], Chrono.get_map_gen_settings(), Balance.starting_items).index
+        objective.active_surface_index = Reset.soft_reset_map(game.surfaces[objective.active_surface_index], Chrono.get_map_gen_settings(world.planet_name), Balance.starting_items).index
    end

    local surface = game.surfaces[objective.active_surface_index]
@@ -110,7 +111,8 @@ local function chronojump(choice)
        end
    end
    scheduletable.lab_cells = {}
-    objective.active_surface_index = game.create_surface('chronosphere' .. objective.chronojumps, Chrono.get_map_gen_settings()).index
+    Worlds.determine_world(nil)
+    objective.active_surface_index = game.create_surface('chronosphere' .. objective.chronojumps, Chrono.get_map_gen_settings(objective.world.planet_name)).index
    local surface = game.surfaces[objective.active_surface_index]

    generate_overworld(surface, choice)
--- a/maps/chronosphere/on_event.lua
+++ b/maps/chronosphere/on_event.lua
@@ -34,7 +34,7 @@ function Public.on_player_mined_entity(event)
            Event_functions.trap(entity, false)
            Event_functions.choppy_loot(event)
        end
-    elseif entity.name == 'rock-huge' or entity.name == 'rock-big' or entity.name == 'sand-rock-big' then
+    elseif entity.name == 'huge-rock' or entity.name == 'big-rock' or entity.name == 'big-sand-rock' then
        if objective.world.id == 3 then --rocky worlds
            event.buffer.clear()
        -- elseif objective.world.id == 5 then --maze worlds
@@ -51,7 +51,7 @@ end
 function Public.pre_player_mined_item(event)
    local objective = Chrono_table.get_table()
    if objective.world.id == 3 then --rocky worlds
-        if event.entity.name == 'rock-huge' or event.entity.name == 'rock-big' or event.entity.name == 'sand-rock-big' then
+        if event.entity.name == 'huge-rock' or event.entity.name == 'big-rock' or event.entity.name == 'big-sand-rock' then
            Event_functions.trap(event.entity, false)
            event.entity.destroy()
            Event_functions.rocky_loot(event)
@@ -62,6 +62,7 @@ end
 function Public.on_pre_player_left_game(event)
    local playertable = Chrono_table.get_player_table()
    local player = game.get_player(event.player_index)
+    if not player or not player.valid then return end
    if player.controller_type == defines.controllers.editor then
        player.toggle_map_editor()
    end
@@ -74,6 +75,7 @@ function Public.on_player_joined_game(event)
    local objective = Chrono_table.get_table()
    local playertable = Chrono_table.get_player_table()
    local player = game.get_player(event.player_index)
+    if not player or not player.valid then return end
    if not playertable.flame_boots[event.player_index] then
        playertable.flame_boots[event.player_index] = {}
    end
@@ -85,7 +87,7 @@ function Public.on_player_joined_game(event)
    local surface = game.surfaces[objective.active_surface_index]

    if player.online_time == 0 then
-        player.teleport(surface.find_non_colliding_position('character', game.forces.player.get_spawn_position(surface), 32, 0.5), surface)
+        player.teleport(surface.find_non_colliding_position('character', player.force.get_spawn_position(surface), 32, 0.5) or {0, 0}, surface)
        for item, amount in pairs(Balance.starting_items) do
            player.insert({name = item, count = amount})
        end
@@ -95,16 +97,16 @@ function Public.on_player_joined_game(event)
        player.character = nil
        player.set_controller({type = defines.controllers.god})
        player.create_character()
-        player.teleport(surface.find_non_colliding_position('character', game.forces.player.get_spawn_position(surface), 32, 0.5), surface)
+        player.teleport(surface.find_non_colliding_position('character', player.force.get_spawn_position(surface), 32, 0.5) or {0, 0}, surface)
        for item, amount in pairs(Balance.starting_items) do
            player.insert({name = item, count = amount})
        end
    end

-    local tile = surface.get_tile(player.position)
+    local tile = surface.get_tile(player.position.x, player.position.y)
    if tile.valid then
        if tile.name == 'out-of-map' then
-            player.teleport(surface.find_non_colliding_position('character', game.forces.player.get_spawn_position(surface), 32, 0.5), surface)
+            player.teleport(surface.find_non_colliding_position('character', player.force.get_spawn_position(surface), 32, 0.5) or {0, 0}, surface)
        end
    end
    Minimap.update_surface(player)
@@ -113,6 +115,7 @@ end

 function Public.on_player_changed_surface(event)
    local player = game.get_player(event.player_index)
+    if not player or not player.valid then return end
    Minimap.toggle_button(player)
    if not player.is_cursor_empty() then
        if player.cursor_stack and player.cursor_stack.valid_for_read then
@@ -134,9 +137,54 @@ function Public.on_player_changed_surface(event)

 end

+local function try_destroy_platform(entity, cause) 
+    local pos = entity.position
+    local surface = entity.surface
+    if surface.platform then return end
+    local asteroids = {
+        ['small-metallic-asteroid'] = {size = 1, amount = 1},
+        ['medium-metallic-asteroid'] = {size = 2, amount = 2},
+        ['big-metallic-asteroid'] = {size = 3, amount = 4},
+        ['huge-metallic-asteroid'] = {size = 6, amount = 6},
+        ['small-carbonic-asteroid'] = {size = 1, amount = 1},
+        ['medium-carbonic-asteroid'] = {size = 2, amount = 2},
+        ['big-carbonic-asteroid'] = {size = 3, amount = 4},
+        ['huge-carbonic-asteroid'] = {size = 6, amount = 6},
+        ['small-oxide-asteroid'] = {size = 1, amount = 1},
+        ['medium-oxide-asteroid'] = {size = 2, amount = 2},
+        ['big-oxide-asteroid'] = {size = 3, amount = 4},
+        ['huge-oxide-asteroid'] = {size = 6, amount = 6},
+        ['small-interstellar-asteroid'] = {size = 1, amount = 1},
+        ['medium-interstellar-asteroid'] = {size = 2, amount = 2},
+        ['big-interstellar-asteroid'] = {size = 3, amount = 4},
+        ['huge-interstellar-asteroid'] = {size = 6, amount = 6},
+    }
+    local stone = asteroids[entity.name]
+    if cause then
+        for i = stone.amount, 0, -1 do
+            --register some loot or something. Can't spawn chunks outside the actual space platform!       
+        end
+        return
+    end
+    local tiles = {}
+    local size = stone.size
+    for x = -size, size, 1 do
+        for y = -size, size, 1 do
+            local tile = entity.surface.get_tile(pos.x + x,pos.y + y)
+            if tile and tile.valid and tile.name == 'space-platform-foundation' then 
+                tiles[#tiles+1] = {position = {x = pos.x + x, y = pos.y + y}, name = 'empty-space'}
+            end
+        end
+    end
+    entity.surface.set_tiles(tiles)
+end
+
 function Public.on_entity_died(event)
    local objective = Chrono_table.get_table()
    local entity = event.entity
+    if entity.type == 'asteroid' then
+        try_destroy_platform(entity, event.cause)
+    end
    if entity.type == 'tree' and objective.world.id == 4 then --choppy planet
        if event.cause then
            if event.cause.valid then
@@ -248,9 +296,9 @@ function Public.on_built_entity(event)
        return
    end
    local objective = Chrono_table.get_table()
-    if entity.type == 'entity-ghost' then
+    --[[ if entity.type == 'entity-ghost' then
        entity.time_to_live = game.forces.player.ghost_time_to_live
-    end
+    end ]]
    if entity.name == 'spidertron' then
        if objective.world.id ~= 7 or entity.surface.name == 'cargo_wagon' then
            entity.destroy()
@@ -263,6 +311,7 @@ end

 function Public.on_pre_player_died(event)
    local player = game.get_player(event.player_index)
+    if not player or not player.valid then return end
    local surface = player.surface
    local poisons = surface.count_entities_filtered {position = player.position, radius = 10, name = 'poison-cloud'}
    if poisons > 0 then
@@ -277,7 +326,13 @@ end
 function Public.script_raised_revive(event)
 	local entity = event.entity
 	if not entity or not entity.valid then return end
-	if entity.force.name == "player" then return end
+	if entity.force.name == "player" then
+        entity.minable = false
+        entity.destructible = false
+        if entity.name == 'solar-panel' or entity.name == 'substation' then
+            entity.operable = false
+        end
+    end
 	if entity.force.name == "scrapyard" then
 		if entity.name == "gun-turret" then
            local objective = Chrono_table.get_table()
--- a/maps/chronosphere/production.lua
+++ b/maps/chronosphere/production.lua
@@ -1,10 +1,10 @@
 local Chrono_table = require 'maps.chronosphere.table'
-local Rand = require 'maps.chronosphere.random'
 local Balance = require 'maps.chronosphere.balance'
 local Difficulty = require 'modules.difficulty_vote'

 local Public = {}
 local List = require 'maps.chronosphere.production_list'
+local FT = require 'utils.functions.flying_texts'

 local function roll_assembler()
    local objective = Chrono_table.get_table()
@@ -15,7 +15,7 @@ local function roll_assembler()
            table.insert(choices.weights, item.weight)
        end
    end
-    return Rand.raffle(choices.types, choices.weights)
+    return table.get_random_weighted_t(choices.types, choices.weights)
 end

 function Public.calculate_factory_level(xp, whole_level)
@@ -53,13 +53,14 @@ local function produce(factory, train)
            factory.progress = factory.progress - (1 + multi) * List[id].base_time * 60
            local inserted = factory.entity.get_output_inventory().insert {name = List[id].name, count = 1 + multi}
            factory.produced = factory.produced + inserted
-            factory.entity.surface.pollute(factory.entity.position, inserted * pollution_coef)
+            local surface = factory.entity.surface
+            surface.pollute(factory.entity.position, inserted * pollution_coef)
            if train then
-                game.pollution_statistics.on_flow('cargo-wagon', inserted * pollution_coef)
-                game.forces.player.item_production_statistics.on_flow(List[id].name, inserted)
+                game.get_pollution_statistics(surface).on_flow('cargo-wagon', inserted * pollution_coef)
+                game.forces.player.get_item_production_statistics(surface).on_flow(List[id].name, inserted)
                factory.entity.products_finished = factory.entity.products_finished + inserted
            else
-                game.pollution_statistics.on_flow('item-on-ground', inserted * pollution_coef)
+                game.get_pollution_statistics(surface).on_flow('item-on-ground', inserted * pollution_coef)
            end
        end
    end
@@ -84,17 +85,6 @@ local function levelup_train_factory(id)
  production.train_assemblers[id].tier = level
 end

-local function flying_text(surface, position, text, color)
-    surface.create_entity(
-        {
-            name = 'flying-text',
-            position = {position.x, position.y - 0.5},
-            text = text,
-            color = color
-        }
-    )
-end
-
 function Public.produce_assemblers()
    local production = Chrono_table.get_production_table()
    for _, factory in pairs(production.assemblers) do
@@ -159,10 +149,10 @@ function Public.check_activity()
        local count = surface.count_entities_filtered {position = entity.position, radius = 10, force = 'player'}
        if count > 10 then
            factory.active = true
-            flying_text(surface, entity.position, 'Active', {r = 0, g = 0.98, b = 0})
+            FT.flying_text(nil, surface, entity.position, 'Active', {r = 0, g = 0.98, b = 0})
        else
            factory.active = false
-            flying_text(surface, entity.position, 'Not Active', {r = 0.98, g = 0, b = 0})
+            FT.flying_text(nil, surface, entity.position, 'Not Active', {r = 0.98, g = 0, b = 0})
        end
        ::continue::
    end
--- a/maps/chronosphere/production_list.lua
+++ b/maps/chronosphere/production_list.lua
@@ -44,7 +44,7 @@ List[6] = {
    id = 6,
    jump_min = 6,
    name = 'light-oil-barrel',
-    recipe_override = 'fill-light-oil-barrel',
+    recipe_override = 'light-oil-barrel',
    kind = 'fluid-assembler',
    base_time = 8,
    weight = 3
@@ -60,7 +60,7 @@ List[7] = {
 List[8] = {
    id = 8,
    jump_min = 4,
-    name = 'empty-barrel',
+    name = 'barrel',
    kind = 'assembler',
    base_time = 10,
    weight = 3
--- a/maps/chronosphere/raffles.lua
+++ b/maps/chronosphere/raffles.lua
@@ -12,27 +12,27 @@ Public.biters = {
 }

 Public.rocks = {
-    'sand-rock-big',
-    'sand-rock-big',
-    'rock-big',
-    'rock-big',
-    'rock-big',
-    'rock-big',
-    'rock-big',
-    'rock-big',
-    'rock-big',
-    'rock-huge'
+    'big-sand-rock',
+    'big-sand-rock',
+    'big-rock',
+    'big-rock',
+    'big-rock',
+    'big-rock',
+    'big-rock',
+    'big-rock',
+    'big-rock',
+    'huge-rock'
 }

 Public.rock_decoratives = {
-    'rock-medium',
-    'rock-small',
-    'rock-small',
-    'rock-tiny',
-    'rock-tiny',
-    'rock-tiny',
-    'sand-rock-medium',
-    'sand-rock-small'
+    'medium-rock',
+    'small-rock',
+    'small-rock',
+    'tiny-rock',
+    'tiny-rock',
+    'tiny-rock',
+    'medium-sand-rock',
+    'small-sand-rock'
 }

 Public.ores = {
--- a/maps/chronosphere/random.lua
+++ b/maps/chronosphere/random.lua
@@ -1,73 +0,0 @@
-local math_random = math.random
-local Public = {}
-
-function Public.shuffle(tbl)
-    local size = #tbl
-    for i = size, 1, -1 do
-        local rand = math_random(size)
-        tbl[i], tbl[rand] = tbl[rand], tbl[i]
-    end
-    return tbl
-end
-
-local function is_closer(pos1, pos2, pos)
-    return ((pos1.x - pos.x) ^ 2 + (pos1.y - pos.y) ^ 2) < ((pos2.x - pos.x) ^ 2 + (pos2.y - pos.y) ^ 2)
-end
-
-function Public.shuffle_distance(tbl, position)
-    local size = #tbl
-    for i = size, 1, -1 do
-        local rand = math_random(size)
-        if is_closer(tbl[i].position, tbl[rand].position, position) and i > rand then
-            tbl[i], tbl[rand] = tbl[rand], tbl[i]
-        end
-    end
-    return tbl
-end
-
-function Public.raffle(values, weights) --arguments of the form {[a] = A, [b] = B, ...} and {[a] = a_weight, [b] = b_weight, ...} or just {a,b,c,...} and {1,2,3...}
-    local total_weight = 0
-    for k, w in pairs(weights) do
-        assert(values[k])
-        if w > 0 then
-            total_weight = total_weight + w
-        end
-        -- negative weights treated as zero
-    end
-    assert(total_weight > 0)
-
-    local cumulative_probability = 0
-    local rng = math_random()
-    for k, v in pairs(values) do
-        assert(weights[k])
-        cumulative_probability = cumulative_probability + (weights[k] / total_weight)
-        if rng <= cumulative_probability then
-            return v
-        end
-    end
-end
-
-function Public.spairs(t, order)
-    -- collect the keys
-    local keys = {}
-    for k in pairs(t) do keys[#keys+1] = k end
-
-    -- if order function given, sort by it by passing the table and keys a, b,
-    -- otherwise just sort the keys
-    if order then
-        table.sort(keys, function(a,b) return order(t, a, b) end)
-    else
-        table.sort(keys)
-    end
-
-    -- return the iterator function
-    local i = 0
-    return function()
-        i = i + 1
-        if keys[i] then
-            return keys[i], t[keys[i]]
-        end
-    end
-end
-
-return Public
--- a/maps/chronosphere/table.lua
+++ b/maps/chronosphere/table.lua
@@ -132,7 +132,7 @@ function Public.reset_table()
    chronosphere.research_tokens.tech = 0
    chronosphere.research_tokens.ecology = 0
    chronosphere.research_tokens.weapons = 0
-    chronosphere.laser_battery = 0
+    chronosphere.laser_battery = nil
    chronosphere.last_artillery_event = 0
    chronosphere.poison_mastery_unlocked = 0
    chronosphere.gen_speed = 2
--- a/maps/chronosphere/terrain_specials.lua
+++ b/maps/chronosphere/terrain_specials.lua
@@ -22,8 +22,11 @@ function Public.danger_event(surface, left_top)
        rendering.draw_text {
        text = 'Nuclear silo',
        surface = surface,
-        target = pole,
-        target_offset = {5, -2.5},
+        target = {
+            entity = pole,
+            offset = {5, -2.5},
+            position = pole.position
+        },
        color = {r = 0.98, g = 0, b = 0},
        scale = 1.00,
        font = 'default-game',
@@ -35,17 +38,20 @@ function Public.danger_event(surface, left_top)
        rendering.draw_text {
        text = ' ',
        surface = surface,
-        target = pole,
-        target_offset = {5, -1.5},
+        target = {
+            entity = pole,
+            offset = {5, -1.5},
+            position = pole.position
+        },
        color = {r = 0.98, g = 0, b = 0},
        scale = 1.00,
        font = 'default-game',
        alignment = 'center',
        scale_with_zoom = false
    }
-    silo.get_module_inventory().insert('effectivity-module-3')
+    silo.get_module_inventory().insert('efficiency-module-3')
    silo.rocket_parts = 100
-    --silo.get_module_inventory().insert("effectivity-module-3")
+    --silo.get_module_inventory().insert("efficiency-module-3")
    local combinator =
        surface.create_entity({name = 'constant-combinator', position = {x = left_top.x + 11, y = left_top.y + 10}, force = 'player', create_build_effect_smoke = false})
    local speaker =
@@ -59,7 +65,7 @@ function Public.danger_event(surface, left_top)
            alert_parameters = {show_alert = true, show_on_map = true, icon_signal_id = {type = 'item', name = 'atomic-bomb'}, alert_message = 'Nuclear missile silo detected!'}
        }
    )
-    combinator.connect_neighbour({wire = defines.wire_type.green, target_entity = speaker})
+    combinator.get_wire_connector(defines.wire_connector_id.circuit_green, true).connect_to(speaker.get_wire_connector(defines.wire_connector_id.circuit_green, true), false)
    local rules = combinator.get_or_create_control_behavior()
    local rules2 = speaker.get_or_create_control_behavior()
    rules.set_signal(1, {signal = {type = 'virtual', name = 'signal-A'}, count = 1})
@@ -100,8 +106,11 @@ function Public.fish_market(surface, left_top)
    rendering.draw_text {
        text = 'Fish Market',
        surface = surface,
-        target = market,
-        target_offset = {0, -2.5},
+        target = {
+            entity = market,
+            offset = {0, -2.5},
+            position = market.position
+        },
        color = objective.locomotive.color,
        scale = 1.00,
        font = 'default-game',
@@ -116,8 +125,11 @@ function Public.fish_market(surface, left_top)
    rendering.draw_text {
        text = 'Deposit fish here',
        surface = surface,
-        target = fishchest,
-        target_offset = {0, -2.5},
+        target = {
+            entity = fishchest,
+            offset = {0, -2.5},
+            position = fishchest.position
+        },
        color = objective.locomotive.color,
        scale = 0.75,
        font = 'default-game',
--- a/maps/chronosphere/tick_functions.lua
+++ b/maps/chronosphere/tick_functions.lua
@@ -79,8 +79,9 @@ function Public.train_pollution(source, interior_pollution)
    elseif source == 'wagons' then
        pollution = interior_pollution * Balance.machine_pollution_transfer_from_inside_factor(difficulty, objective.upgrades[2])
    end
-    game.surfaces[objective.active_surface_index].pollute(pos, pollution)
-    game.pollution_statistics.on_flow(stat_target, pollution - interior_pollution)
+    local surface = game.surfaces[objective.active_surface_index]
+    surface.pollute(pos, pollution)
+    game.get_pollution_statistics(surface).on_flow(stat_target, pollution - interior_pollution)
 end

 function Public.transfer_pollution()
@@ -101,12 +102,12 @@ function Public.ramp_evolution()
        objective.passivetimer * objective.passive_chronocharge_rate > objective.chronochargesneeded * 0.50 and
            objective.chronojumps >= Balance.jumps_until_overstay_is_on(Difficulty.get().difficulty_vote_value)
     then
-        local evolution = game.forces.enemy.evolution_factor
+        local evolution = game.forces.enemy.get_evolution_factor(game.get_surface(objective.active_surface_index))
        evolution = evolution * Balance.evoramp50_multiplier_per_10s(difficulty)
        if evolution > 1 then
            evolution = 1
        end
-        game.forces.enemy.evolution_factor = evolution
+        game.forces.enemy.set_evolution_factor(evolution, game.get_surface(objective.active_surface_index))
    end
 end

@@ -327,7 +328,7 @@ function Public.dangertimer()
                        objective.dangers[i].silo.launch_rocket()
                        objective.dangers[i].silo.rocket_parts = 100
                    end
-                    rendering.set_text(objective.dangers[i].timer, math_floor(timer / 60) .. ' min, ' .. timer % 60 .. ' s')
+                    objective.dangers[i].timer.text = math_floor(timer / 60) .. ' min, ' .. timer % 60 .. ' s'
                end
            end
        end
@@ -372,7 +373,7 @@ function Public.offline_players()
                    player_inv[4] = game.players[players[i].index].get_inventory(defines.inventory.character_ammo)
                    player_inv[5] = game.players[players[i].index].get_inventory(defines.inventory.character_trash)
                    local e = surface.create_entity({name = 'character', position = game.forces.player.get_spawn_position(surface), force = 'neutral'})
-                    local inv = e.get_inventory(defines.inventory.character_main)
+                    local inv = e and e.get_inventory(defines.inventory.character_main)
                    for ii = 1, 5, 1 do
                        if player_inv[ii].valid then
                            for iii = 1, #player_inv[ii], 1 do
@@ -384,14 +385,18 @@ function Public.offline_players()
                    end
                    if #items > 0 then
                        for item = 1, #items, 1 do
-                            if items[item].valid then
+                            if items[item].valid and inv and inv.valid then
                                inv.insert(items[item])
                            end
                        end
                        game.print({'chronosphere.message_accident'}, {r = 0.98, g = 0.66, b = 0.22})
-                        e.die('neutral')
+                        if e and e.valid then
+                            e.die('neutral')
+                        end
                    else
-                        e.destroy()
+                        if e and e.valid then
+                            e.destroy()
+                        end
                    end

                    for ii = 1, 5, 1 do
@@ -512,7 +517,7 @@ function Public.giftmas_lights()
        [4] = {r = 63, g = 49, b = 255, a = 1}, --modrá
    }
    for _ = 1, 5, 1 do
-        rendering.set_color(lights[math_random(1, nr)], colors[math_random(1, 4)])
+        lights[math_random(1, nr)].color = colors[math_random(1, 4)]
    end
 end

--- a/maps/chronosphere/treasure.lua
+++ b/maps/chronosphere/treasure.lua
@@ -1,5 +1,4 @@
 local Chrono_table = require 'maps.chronosphere.table'
-local Rand = require 'maps.chronosphere.random'
 local Balance = require 'maps.chronosphere.balance'
 local Difficulty = require 'modules.difficulty_vote'
 local math_random = math.random
@@ -36,8 +35,8 @@ local function treasure_chest_loot(difficulty, world)
        {3, 0, 1, false, 'small-lamp', 8, 32},
        {2, 0, 1, false, 'electric-mining-drill', 2, 4},
        {3, 0, 1, false, 'long-handed-inserter', 4, 16},
-        {0.5, 0, 1, false, 'filter-inserter', 2, 12},
-        {0.2, 0, 1, false, 'stack-filter-inserter', 2, 6},
+        --{0.5, 0, 1, false, 'filter-inserter', 2, 12},
+        --{0.2, 0, 1, false, 'stack-filter-inserter', 2, 6},
        {0.2, 0, 1, false, 'slowdown-capsule', 2, 4},
        {0.2, 0, 1, false, 'destroyer-capsule', 2, 4},
        {0.2, 0, 1, false, 'defender-capsule', 2, 4},
@@ -47,7 +46,7 @@ local function treasure_chest_loot(difficulty, world)
        {1, 0.15, 1, false, 'pump', 1, 2},
        {2, 0.15, 1, false, 'pumpjack', 1, 3},
        {0.02, 0.15, 1, false, 'oil-refinery', 1, 2},
-        {3, 0, 1, false, 'effectivity-module', 1, 4},
+        {3, 0, 1, false, 'efficiency-module', 1, 4},
        {3, 0, 1, false, 'speed-module', 1, 4},
        {3, 0, 1, false, 'productivity-module', 1, 4},
        --shotgun meta:
@@ -149,7 +148,7 @@ local function treasure_chest_loot(difficulty, world)
        -- super late-game:
        --{9, 0.8, 1.2, false, "railgun-dart", 12, 20},
        {1, 0.9, 1.1, true, 'power-armor-mk2', 1, 1},
-        {1, 0.8, 1.2, true, 'fusion-reactor-equipment', 1, 1}
+        {1, 0.8, 1.2, true, 'fission-reactor-equipment', 1, 1}

        --{2, 0, 1, , "computer", 1, 1},
        --{1, 0.2, 1, , "railgun", 1, 1},
@@ -178,7 +177,7 @@ local function treasure_chest_loot(difficulty, world)
            {2, 0.2, 1.6, true, 'nuclear-reactor', 1, 1},
            {2, 0.2, 1, false, 'centrifuge', 1, 1},
            {1, 0.25, 1.75, true, 'nuclear-fuel', 1, 1},
-            {1, 0.5, 1.5, true, 'fusion-reactor-equipment', 1, 1},
+            {1, 0.5, 1.5, true, 'fission-reactor-equipment', 1, 1},
            {1, 0.5, 1.5, true, 'atomic-bomb', 1, 1}
        }
    end
@@ -186,14 +185,14 @@ local function treasure_chest_loot(difficulty, world)
    --[[
 	if world.id == 7 then --biterwrld
 		specialised_loot_raw = {
-			{4, 0, 1, false, "effectivity-module", 1, 4},
+			{4, 0, 1, false, "efficiency-module", 1, 4},
 			{4, 0, 1, false, "productivity-module", 1, 4},
 			{4, 0, 1, false, "speed-module", 1, 4},
 			{2, 0, 1, false, "beacon", 1, 1},
-			{0.5, 0, 1, false, "effectivity-module-2", 1, 4},
+			{0.5, 0, 1, false, "efficiency-module-2", 1, 4},
 			{0.5, 0, 1, false, "productivity-module-2", 1, 4},
 			{0.5, 0, 1, false, "speed-module-2", 1, 4},
-			{0.1, 0, 1, false, "effectivity-module-3", 1, 4},
+			{0.1, 0, 1, false, "efficiency-module-3", 1, 4},
 			{0.1, 0, 1, false, "productivity-module-3", 1, 4},
 			{0.1, 0, 1, false, "speed-module-3", 1, 4},

@@ -321,7 +320,7 @@ function Public.treasure_chest(surface, position, container_name)
    e.minable = false
    local inv = e.get_inventory(defines.inventory.chest)
    for _ = 1, math_random(2, 6), 1 do
-        local loot = Rand.raffle(loot_types, loot_weights)
+        local loot = table.get_random_weighted_t(loot_types, loot_weights)
        local difficulty_scaling = Balance.treasure_quantity_difficulty_scaling(difficulty)
        if objective.chronojumps == 0 then
            difficulty_scaling = 1
--- a/maps/chronosphere/upgrade_list.lua
+++ b/maps/chronosphere/upgrade_list.lua
@@ -77,7 +77,7 @@ function Public.upgrade2(coin_scaling)
    local difficulty = Difficulty.get().difficulty_vote_value
    local upgrade = {
        name = {'chronosphere.upgrade_filter'},
-        sprite = 'recipe/effectivity-module',
+        sprite = 'recipe/efficiency-module',
        max_level = 9,
        type = 'train',
        enabled = true,
@@ -182,9 +182,9 @@ function Public.upgrade5(coin_scaling)
            item3 = {name = 'iron-chest', tt = 'entity-name', sprite = 'item/iron-chest', count = math_max(0, 250 - math_abs(objective.upgrades[5] - 1) * 250)},
            item4 = {name = 'steel-chest', tt = 'entity-name', sprite = 'item/steel-chest', count = math_max(0, 250 - math_abs(objective.upgrades[5] - 2) * 250)},
            item5 = {
-                name = 'logistic-chest-storage',
+                name = 'storage-chest',
                tt = 'entity-name',
-                sprite = 'item/logistic-chest-storage',
+                sprite = 'item/storage-chest',
                count = math_max(0, 250 - math_abs(objective.upgrades[5] - 3) * 250)
            }
        },
@@ -267,7 +267,7 @@ function Public.upgrade9(coin_scaling)
    local objective = Chrono_table.get_table()
    local upgrade = {
        name = {'chronosphere.upgrade_storage'},
-        sprite = 'item/logistic-chest-storage',
+        sprite = 'item/storage-chest',
        max_level = 4,
        type = 'train',
        enabled = true,
@@ -285,9 +285,9 @@ function Public.upgrade9(coin_scaling)
            item3 = {name = 'iron-chest', tt = 'entity-name', sprite = 'item/iron-chest', count = math_max(0, 250 - math_abs(objective.upgrades[9] - 1) * 250)},
            item4 = {name = 'steel-chest', tt = 'entity-name', sprite = 'item/steel-chest', count = math_max(0, 250 - math_abs(objective.upgrades[9] - 2) * 250)},
            item5 = {
-                name = 'logistic-chest-storage',
+                name = 'storage-chest',
                tt = 'entity-name',
-                sprite = 'item/logistic-chest-storage',
+                sprite = 'item/storage-chest',
                count = math_max(0, 250 - math_abs(objective.upgrades[9] - 3) * 250)
            }
        },
@@ -318,10 +318,10 @@ function Public.upgrade10(coin_scaling)
    return upgrade
 end

-function Public.upgrade11()
+function Public.upgrade11(_coin_scaling)
    local upgrade = {
        name = {'chronosphere.upgrade_fusion'},
-        sprite = 'recipe/fusion-reactor-equipment',
+        sprite = 'recipe/fission-reactor-equipment',
        max_level = 999,
        type = 'player',
        enabled = true,
@@ -340,7 +340,7 @@ function Public.upgrade11()
    return upgrade
 end

-function Public.upgrade12()
+function Public.upgrade12(_coin_scaling)
    local upgrade = {
        name = {'chronosphere.upgrade_mk2'},
        sprite = 'recipe/power-armor-mk2',
@@ -410,7 +410,7 @@ function Public.upgrade15(coin_scaling)
    local objective = Chrono_table.get_table()
    local upgrade = {
        name = {'chronosphere.upgrade_computer3'},
-        sprite = 'item/rocket-control-unit',
+        sprite = 'item/utility-science-pack',
        max_level = 10,
        type = 'quest',
        enabled = objective.upgrades[14] == 1,
@@ -420,7 +420,7 @@ function Public.upgrade15(coin_scaling)
        cost = {
            item1 = {name = 'coin', tt = 'item-name', sprite = 'item/coin', count = 2000 * coin_scaling},
            item2 = {name = 'low-density-structure', tt = 'item-name', sprite = 'item/low-density-structure', count = 100},
-            item3 = {name = 'rocket-control-unit', tt = 'item-name', sprite = 'item/rocket-control-unit', count = 100},
+            item3 = {name = 'utility-science-pack', tt = 'item-name', sprite = 'item/utility-science-pack', count = 100},
            item4 = {name = 'uranium-fuel-cell', tt = 'item-name', sprite = 'item/uranium-fuel-cell', count = 50}
        },
        virtual_cost = {
@@ -430,11 +430,11 @@ function Public.upgrade15(coin_scaling)
    return upgrade
 end

-function Public.upgrade16()
+function Public.upgrade16(_coin_scaling)
    local objective = Chrono_table.get_table()
    local upgrade = {
        name = {'chronosphere.upgrade_computer4'},
-        sprite = 'item/satellite',
+        sprite = 'item/space-science-pack',
        max_level = 1,
        type = 'quest',
        enabled = objective.upgrades[15] == 10,
@@ -443,7 +443,7 @@ function Public.upgrade16()
        jump_limit = 25,
        cost = {
            item1 = {name = 'rocket-silo', tt = 'entity-name', sprite = 'item/rocket-silo', count = 1},
-            item2 = {name = 'satellite', tt = 'item-name', sprite = 'item/satellite', count = 1},
+            item2 = {name = 'space-science-pack', tt = 'item-name', sprite = 'item/space-science-pack', count = 1},
            item3 = {name = 'spidertron', tt = 'entity-name', sprite = 'item/spidertron', count = 2}
        },
        virtual_cost = {
@@ -476,7 +476,7 @@ function Public.upgrade17(coin_scaling)
    return upgrade
 end

-function Public.upgrade18()
+function Public.upgrade18(_coin_scaling)
    local objective = Chrono_table.get_table()
    local upgrade = {
        name = {'chronosphere.upgrade_researchspeed'},
@@ -562,7 +562,7 @@ function Public.upgrade20(coin_scaling)
    return upgrade
 end

-function Public.upgrade21()
+function Public.upgrade21(_coin_scaling)
    local objective = Chrono_table.get_table()
    local difficulty = Difficulty.get().difficulty_vote_value
    local upgrade = {
@@ -634,8 +634,8 @@ function Public.upgrade23(coin_scaling)
            item2 = {name = 'artillery-turret', tt = 'entity-name', sprite = 'item/artillery-turret', count = 10},
            item3 = {name = 'military-science-pack', tt = 'item-name', sprite = 'item/military-science-pack', count = 1000},
            item4 = {name = 'atomic-bomb', tt = 'item-name', sprite = 'item/atomic-bomb', count = 20},
-            item5 = {name = 'rocket-control-unit', tt = 'item-name', sprite = 'item/rocket-control-unit', count = 50},
-            item6 = {name = 'satellite', tt = 'item-name', sprite = 'item/satellite', count = 1}
+            item5 = {name = 'utility-science-pack', tt = 'item-name', sprite = 'item/utility-science-pack', count = 50},
+            item6 = {name = 'space-science-pack', tt = 'item-name', sprite = 'item/space-science-pack', count = 1}
        },
        virtual_cost = {
            virtual1 = {type = 'tech', name = Public.tokens.tech.name, tt = 'chronosphere', sprite = Public.tokens.tech.sprite, count = 200}
@@ -644,7 +644,7 @@ function Public.upgrade23(coin_scaling)
    return upgrade
 end

-function Public.upgrade24()
+function Public.upgrade24(_coin_scaling)
    local objective = Chrono_table.get_table()
    local upgrade = {
        name = {'chronosphere.upgrade_nuclear_artillery_ammo'},
@@ -665,7 +665,7 @@ function Public.upgrade24()
    return upgrade
 end

-function Public.upgrade25()
+function Public.upgrade25(_coin_scaling)
    local objective = Chrono_table.get_table()
    local upgrade = {
        name = {'chronosphere.upgrade_poison_mastery'},
--- a/maps/chronosphere/upgrades.lua
+++ b/maps/chronosphere/upgrades.lua
@@ -36,7 +36,7 @@ end
 local function upgrade_hp()
    local objective = Chrono_table.get_table()
    objective.max_health = 10000 + 2500 * objective.upgrades[1]
-    rendering.set_text(objective.health_text, 'HP: ' .. objective.health .. ' / ' .. objective.max_health)
+    objective.health_text.text = 'HP: ' .. objective.health .. ' / ' .. objective.max_health
 end

 local function spawn_accumulators()
@@ -90,14 +90,18 @@ local function upgrade_out()
    local positions = {{-16, -62}, {15, -62}, {-16, 66}, {15, 66}}
    for i = 1, 4, 1 do
        local e = game.surfaces['cargo_wagon'].create_entity({name = 'blue-chest', position = positions[i], force = 'player'})
+        if not e or not e.valid then break end
        e.destructible = false
        e.minable = false
        objective.outchests[i] = e
        rendering.draw_text {
            text = 'Output',
            surface = e.surface,
-            target = e,
-            target_offset = {0, -1.5},
+            target = {
+                entity = e,
+                offset = {0, -1.5},
+                position = e.position
+            },
            color = objective.locomotive.color,
            scale = 0.80,
            font = 'default-game',
--- a/maps/chronosphere/world_functions.lua
+++ b/maps/chronosphere/world_functions.lua
@@ -70,7 +70,7 @@ local function get_replacement_tile(surface, position)
        table.shuffle_table(vectors)
        for k, v in pairs(vectors) do
            local tile = surface.get_tile(position.x + v[1], position.y + v[2])
-            if not tile.collides_with('resource') then
+            if tile and tile.valid and not tile.collides_with('resource') then
                return tile.name
            end
        end
@@ -97,7 +97,7 @@ function Public.replace_water(surface, left_top)
            local p = { x = left_top.x + x, y = left_top.y + y }
            local tile = surface.get_tile(p)
            if tile.hidden_tile then
-                surface.set_hidden_tile(p, get_replacement_tile(surface, p).name)
+                surface.set_hidden_tile(p, get_replacement_tile(surface, p))
            elseif tile.collides_with('resource') then
                tiles[#tiles + 1] = { name = get_replacement_tile(surface, p), position = p }
            end
@@ -220,15 +220,16 @@ function Public.process_labyrinth_cell(pos, seed)
 end

 function Public.build_blueprint(surface, position, id, force)
-    local item = surface.create_entity { name = "item-on-ground", position = position, stack = { name = "blueprint", count = 1 } }
-    local success = item.stack.import_stack(Blueprints[id])
+    local nauvis = game.get_surface(1)
+    local item = nauvis and nauvis.create_entity { name = "item-on-ground", position = position, stack = { name = "blueprint", count = 1 } }
+    local success = item and item.stack.import_stack(Blueprints[id])
    if success <= 0 then
-        local ghosts = item.stack.build_blueprint { surface = surface, force = force, position = position, build_mode = defines.build_mode.forced }
+        local ghosts = item and item.stack.build_blueprint { surface = surface, force = force, position = position, build_mode = defines.build_mode.forced } or {}
        for _, ghost in pairs(ghosts) do
            ghost.silent_revive({ raise_revive = true })
        end
    end
-    if item.valid then item.destroy() end
+    if item and item.valid then item.destroy() end
 end

 return Public
--- a/maps/chronosphere/world_list.lua
+++ b/maps/chronosphere/world_list.lua
@@ -1,7 +1,6 @@
 local Chrono_table = require 'maps.chronosphere.table'
 local Balance = require 'maps.chronosphere.balance'
 local Difficulty = require 'modules.difficulty_vote'
-local Rand = require 'maps.chronosphere.random'
 local random = math.random
 local Public = {}
 local Worlds = {}
@@ -10,17 +9,18 @@ Worlds[1] = {
    world_id = 1,
    map = require 'maps.chronosphere.worlds.basic',
    variants = {
-        [1] = {id = 1, min = 1, weight = 1, name = {'chronosphere.map_1_1'}, fe = 6, cu = 1, c = 1, s = 1, u = 0, o = 1, biters = 16, moisture = -0.2, fa = 1},
-        [2] = {id = 2, min = 1, weight = 1, name = {'chronosphere.map_1_2'}, fe = 1, cu = 6, c = 1, s = 1, u = 0, o = 1, biters = 16, moisture = 0.2, fa = 1},
-        [3] = {id = 3, min = 2, weight = 1, name = {'chronosphere.map_1_3'}, fe = 1, cu = 1, c = 1, s = 6, u = 0, o = 1, biters = 16, moisture = -0.2, fa = 1},
-        [4] = {id = 4, min = 4, weight = 1, name = {'chronosphere.map_1_4'}, fe = 1, cu = 1, c = 1, s = 1, u = 0, o = 6, biters = 16, moisture = 0.1, fa = 1},
-        [5] = {id = 5, min = 6, weight = 1, name = {'chronosphere.map_1_5'}, fe = 1, cu = 1, c = 1, s = 1, u = 6, o = 1, biters = 16, moisture = -0.2, fa = 1},
-        [6] = {id = 6, min = 2, weight = 1, name = {'chronosphere.map_1_6'}, fe = 1, cu = 1, c = 6, s = 1, u = 0, o = 1, biters = 16, moisture = 0, fa = 1},
-        [7] = {id = 7, min = 4, weight = 1, name = {'chronosphere.map_1_7'}, fe = 2, cu = 2, c = 2, s = 2, u = 4, o = 3, biters = 40, moisture = 0.2, fa = 0},
-        [8] = {id = 8, min = 2, weight = 1, name = {'chronosphere.map_1_8'}, fe = 1, cu = 1, c = 1, s = 1, u = 0, o = 0, biters = 16, moisture = 0.1, fa = 4},
-        [9] = {id = 9, min = 1, weight = 1, name = {'chronosphere.map_1_9'}, fe = 2, cu = 2, c = 2, s = 2, u = 0, o = 2, biters = 10, moisture = 0, fa = 1},
-        [10] = {id = 10, min = 0, weight = 0, name = {'chronosphere.map_1_10'}, fe = 4, cu = 3, c = 4, s = 2, u = 0, o = 0, biters = 1, moisture = -0.3, fa = 0},
-        [11] = {id = 11, min = 6, weight = 1, name = {'chronosphere.map_1_11'}, fe = 3, cu = 3, c = 2, s = 3, u = 0, o = 0, biters = 6, moisture = -0.5, fa = 4}
+        [1] = {id = 1, min = 1, weight = 1, name = {'chronosphere.map_1_1'}, pl = 'nauvis', fe = 6, cu = 1, c = 1, s = 1, u = 0, o = 1, biters = 16, moisture = -0.2, fa = 1},
+        [2] = {id = 2, min = 1, weight = 1, name = {'chronosphere.map_1_2'}, pl = 'nauvis',fe = 1, cu = 6, c = 1, s = 1, u = 0, o = 1, biters = 16, moisture = 0.2, fa = 1},
+        [3] = {id = 3, min = 2, weight = 1, name = {'chronosphere.map_1_3'}, pl = 'nauvis',fe = 1, cu = 1, c = 1, s = 6, u = 0, o = 1, biters = 16, moisture = -0.2, fa = 1},
+        [4] = {id = 4, min = 4, weight = 1, name = {'chronosphere.map_1_4'}, pl = 'nauvis',fe = 1, cu = 1, c = 1, s = 1, u = 0, o = 6, biters = 16, moisture = 0.1, fa = 1},
+        [5] = {id = 5, min = 6, weight = 1, name = {'chronosphere.map_1_5'}, pl = 'nauvis',fe = 1, cu = 1, c = 1, s = 1, u = 6, o = 1, biters = 16, moisture = -0.2, fa = 1},
+        [6] = {id = 6, min = 2, weight = 1, name = {'chronosphere.map_1_6'}, pl = 'nauvis',fe = 1, cu = 1, c = 6, s = 1, u = 0, o = 1, biters = 16, moisture = 0, fa = 1},
+        [7] = {id = 7, min = 4, weight = 1, name = {'chronosphere.map_1_7'}, pl = 'nauvis',fe = 2, cu = 2, c = 2, s = 2, u = 4, o = 3, biters = 40, moisture = 0.2, fa = 0},
+        [8] = {id = 8, min = 2, weight = 1, name = {'chronosphere.map_1_8'}, pl = 'nauvis',fe = 1, cu = 1, c = 1, s = 1, u = 0, o = 0, biters = 16, moisture = 0.1, fa = 4},
+        [9] = {id = 9, min = 1, weight = 1, name = {'chronosphere.map_1_9'}, pl = 'nauvis',fe = 2, cu = 2, c = 2, s = 2, u = 0, o = 2, biters = 10, moisture = 0, fa = 1},
+        [10] = {id = 10, min = 0, weight = 0, name = {'chronosphere.map_1_10'}, pl = 'nauvis',fe = 4, cu = 3, c = 4, s = 2, u = 0, o = 0, biters = 1, moisture = -0.3, fa = 0},
+        [11] = {id = 11, min = 6, weight = 1, name = {'chronosphere.map_1_11'}, pl = 'nauvis',fe = 3, cu = 3, c = 2, s = 3, u = 0, o = 0, biters = 6, moisture = -0.5, fa = 4},
+        --[12] = {id = 12, min = 1, weight = 100, name = {'chronosphere.map_1_11'}, pl = 'vulcanus',fe = 3, cu = 3, c = 2, s = 3, u = 0, o = 0, biters = 0, moisture = -0.5, fa = 4}
    },
    modifiers = {},
    default_tile = 'grass-1'
@@ -173,10 +173,11 @@ end
 function Public.determine_world(optional_choice)
    local objective = Chrono_table.get_table()
    local difficulty = Difficulty.get().difficulty_vote_value
+    local SA = script.active_mods['space-travel']
    local chosen_id
    local chosen_variant_id
-    local ores = Rand.raffle(ore_richness_variants, Balance.ore_richness_weights(difficulty))
-    local dayspeed = Rand.raffle(time_speed_variants, time_speed_weights)
+    local ores = table.get_random_weighted_t(ore_richness_variants, Balance.ore_richness_weights(difficulty))
+    local dayspeed = table.get_random_weighted_t(time_speed_variants, time_speed_weights)
    local daytime = random(0, 100) / 100
    local special = special_world()
    if special.yes then
@@ -195,6 +196,7 @@ function Public.determine_world(optional_choice)
            id = chosen_id,
            variant = Worlds[chosen_id].variants[chosen_variant_id],
            default_tile = Worlds[chosen_id].default_tile or 'grass-1',
+            planet_name = SA and Worlds[chosen_id].variants[chosen_variant_id].pl or 'nauvis',
            ores = ores,
            dayspeed = dayspeed,
            daytime = daytime
@@ -217,7 +219,7 @@ function Public.determine_world(optional_choice)
    if Worlds[tonumber(optional_choice)] then
        chosen_id = tonumber(optional_choice)
    else
-        chosen_id = Rand.raffle(choices.types, choices.weights)
+        chosen_id = table.get_random_weighted_t(choices.types, choices.weights)
    end
    local variant_choices = {types = {}, weights = {}}
    for _, variant in pairs(Worlds[chosen_id].variants) do
@@ -230,7 +232,7 @@ function Public.determine_world(optional_choice)
        optional_choice = nil
        goto retry
    end
-    chosen_variant_id = Rand.raffle(variant_choices.types, variant_choices.weights)
+    chosen_variant_id = table.get_random_weighted_t(variant_choices.types, variant_choices.weights)
    local modifiers = get_modifiers(chosen_id)
    if modifiers.ores then
        ores = modifiers.ores
@@ -251,6 +253,7 @@ function Public.determine_world(optional_choice)
        id = chosen_id,
        variant = Worlds[chosen_id].variants[chosen_variant_id],
        default_tile = Worlds[chosen_id].default_tile,
+        planet_name = SA and Worlds[chosen_id].variants[chosen_variant_id].pl or 'nauvis',
        ores = ores,
        dayspeed = dayspeed,
        daytime = daytime
--- a/maps/chronosphere/worlds/basic.lua
+++ b/maps/chronosphere/worlds/basic.lua
@@ -55,7 +55,7 @@ local function process_tile(p, seed, entities, treasure, factories)
                if roll == 1 then
                    entities[#entities + 1] = {name = Raffle.spawners[random(1, #Raffle.spawners)], position = p, spawn_decorations = true}
                elseif roll == 2 then
-                    local evo = game.forces['enemy'].evolution_factor
+                    local evo = game.forces.enemy.get_evolution_factor(game.get_surface(objective.active_surface_index))
                    entities[#entities + 1] = {name = Raffle.worms[random(1 + floor(evo * 8), floor(1 + evo * 16))], position = p, spawn_decorations = true}
                elseif roll == 3 then
                    if random(1, 50) == 1 then
--- a/maps/chronosphere/worlds/blueprints.lua
+++ b/maps/chronosphere/worlds/blueprints.lua
@@ -1,4 +1,6 @@
 local Public = {}
+--[[top of locomotive]]
+Public[1] = '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'

 --[[red research]]
 Public[4] = '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'
--- a/maps/chronosphere/worlds/caveworld.lua
+++ b/maps/chronosphere/worlds/caveworld.lua
@@ -66,7 +66,7 @@ local function process_tile(p, seed, tiles, entities, treasure, decoratives)

    if noise3 > -0.25 and noise3 < 0.25 then
        tiles[#tiles + 1] = {name = 'dirt-6', position = p}
-        local evo = game.forces['enemy'].evolution_factor
+        local evo = game.forces.enemy.get_evolution_factor(game.get_surface(objective.active_surface_index))
        local roll = random(1, 1000)
        if roll > 830 + tunnels then
            entities[#entities + 1] = {name = Raffle.rocks[random(1, #Raffle.rocks)], position = p}
--- a/maps/chronosphere/worlds/locomotive_surface.lua
+++ b/maps/chronosphere/worlds/locomotive_surface.lua
@@ -3,6 +3,7 @@ local Chrono_table = require 'maps.chronosphere.table'
 local Factories = require 'maps.chronosphere.production'
 local Upgrades = require 'maps.chronosphere.upgrade_list'
 local List = require 'maps.chronosphere.production_list'
+local Functions = require 'maps.chronosphere.world_functions'
 local math_floor = math.floor
 local math_random = math.random

@@ -14,6 +15,13 @@ local function protect(entity, operable)
    entity.operable = operable
 end

+local function connect_entities(entity1, entity2, wire_type)
+    local wireconnector1 = entity1.get_wire_connector(wire_type, true)
+    local wireconnector2 = entity2.get_wire_connector(wire_type, true)
+    wireconnector1.connect_to(wireconnector2)
+end
+
+
 function Public.create_wagon_room()
    local objective = Chrono_table.get_table()
    local width = 64
@@ -132,61 +140,79 @@ function Public.create_wagon_room()
    end
    surface.set_tiles(water_tiles)

-    local combinators = {}
-    for x = width * -0.5 - 6, width * -0.5 + 3, 1 do
-        for y = -250, -244, 2 do
-            combinators[#combinators + 1] = {name = 'arithmetic-combinator', position = {x, y}, force = 'player', create_build_effect_smoke = false}
-        end
-    end
-    local combimade = {}
-    for i = 1, #combinators, 1 do
-        combimade[i] = surface.create_entity(combinators[i])
-        protect(combimade[i], false)
+    Functions.build_blueprint(surface, {-38, -251}, 1, "player")
+    -- local combinators = {}
+    -- for x = width * -0.5 - 6, width * -0.5 + 3, 1 do
+    --     for y = -250, -244, 2 do
+    --         combinators[#combinators + 1] = {name = 'arithmetic-combinator', position = {x, y}, force = 'player', create_build_effect_smoke = false}
+    --     end
+    -- end
+    -- local combimade = {}
+    -- for i = 1, #combinators, 1 do
+    --     combimade[i] = surface.create_entity(combinators[i])
+    --     protect(combimade[i], false)

-        if i > 1 then
-            combimade[i].connect_neighbour({wire = defines.wire_type.green, target_entity = combimade[i - 1], source_circuit_id = 2, target_circuit_id = 1})
-            local rule = combimade[i].get_or_create_control_behavior()
-            rule.parameters = {first_signal = {type = 'virtual', name = 'signal-A'}, second_constant = 0, operation = '+', output_signal = {type = 'virtual', name = 'signal-A'}}
-        else
-            local rule2 = combimade[i].get_or_create_control_behavior()
-            rule2.parameters = {first_signal = {type = 'virtual', name = 'signal-A'}, second_constant = 0, operation = '+', output_signal = {type = 'virtual', name = 'signal-B'}}
-        end
-    end
-    local checker = surface.create_entity({name = 'decider-combinator', position = {x = width * -0.5 - 6, y = -242}, force = 'player', create_build_effect_smoke = false})
-    local rules3 = checker.get_or_create_control_behavior()
-    rules3.parameters = {
-        first_signal = {type = 'virtual', name = 'signal-A'},
-        second_signal = {type = 'virtual', name = 'signal-B'},
-        comparator = '>',
-        output_signal = {type = 'virtual', name = 'signal-C'},
-        copy_count_from_input = false
-    }
-    local combipower = surface.create_entity({name = 'substation', position = {x = width * -0.5 - 4, y = -242}, force = 'player', create_build_effect_smoke = false})
-    combipower.connect_neighbour({wire = defines.wire_type.green, target_entity = checker, target_circuit_id = 1})
-    combipower.connect_neighbour({wire = defines.wire_type.green, target_entity = combimade[#combimade], target_circuit_id = 1})
-    combimade[1].connect_neighbour({wire = defines.wire_type.green, target_entity = checker, source_circuit_id = 2, target_circuit_id = 1})
-    local speaker =
-        surface.create_entity(
-        {
-            name = 'programmable-speaker',
-            position = {x = width * -0.5 - 6, y = -241},
-            force = 'player',
-            create_build_effect_smoke = false,
-            parameters = {playback_volume = 0.6, playback_globally = true, allow_polyphony = false},
-            alert_parameters = {show_alert = true, show_on_map = true, icon_signal_id = {type = 'item', name = 'accumulator'}, alert_message = 'Train Is Charging!'}
-        }
-    )
-    speaker.connect_neighbour({wire = defines.wire_type.green, target_entity = checker, target_circuit_id = 2})
-    local rules4 = speaker.get_or_create_control_behavior()
-    rules4.circuit_condition = {condition = {first_signal = {type = 'virtual', name = 'signal-C'}, second_constant = 0, comparator = '>'}}
-    rules4.circuit_parameters = {signal_value_is_pitch = false, instrument_id = 8, note_id = 5}
-    local solar1 = surface.create_entity({name = 'solar-panel', position = {x = width * -0.5 - 2, y = -242}, force = 'player', create_build_effect_smoke = false})
-    local solar2 = surface.create_entity({name = 'solar-panel', position = {x = width * -0.5 + 1, y = -242}, force = 'player', create_build_effect_smoke = false})
-    protect(solar1, true)
-    protect(solar2, true)
-    protect(combipower, false)
-    protect(speaker, false)
-    protect(checker, false)
+    --     if i > 1 then
+    --         combimade[i].connect_neighbour({wire = defines.wire_type.green, target_entity = combimade[i - 1], source_circuit_id = 2, target_circuit_id = 1})
+    --         local rule = combimade[i].get_or_create_control_behavior()
+    --         rule.parameters = {first_signal = {type = 'virtual', name = 'signal-A'}, second_constant = 0, operation = '+', output_signal = {type = 'virtual', name = 'signal-A'}}
+    --     else
+    --         local rule2 = combimade[i].get_or_create_control_behavior()
+    --         rule2.parameters = {first_signal = {type = 'virtual', name = 'signal-A'}, second_constant = 0, operation = '+', output_signal = {type = 'virtual', name = 'signal-B'}}
+    --     end
+    -- end
+    -- local checker = surface.create_entity({name = 'decider-combinator', position = {x = width * -0.5 - 6, y = -242}, force = 'player', create_build_effect_smoke = false})
+    -- if not checker or not checker.valid then return end 
+    -- local rules3 = checker.get_control_behavior()
+    -- local dec_condition = {
+    --     first_signal = {type = 'virtual', name = 'signal-A'},
+    --     second_signal = {type = 'virtual', name = 'signal-B'},
+    --     comparator = '>',
+        
+    -- }
+    -- local dec_output = {
+    --     output_signal = {type = 'virtual', name = 'signal-C'},
+    --     copy_count_from_input = false
+    -- }
+    
+    -- rules3.set_condition(1, dec_condition)
+    -- rules3.set_output(1, dec_output)
+    -- rules3.parameters = {
+    --     first_signal = {type = 'virtual', name = 'signal-A'},
+    --     second_signal = {type = 'virtual', name = 'signal-B'},
+    --     comparator = '>',
+    --     output_signal = {type = 'virtual', name = 'signal-C'},
+    --     copy_count_from_input = false
+    -- }
+    -- local combipower = surface.create_entity({name = 'substation', position = {x = width * -0.5 - 4, y = -242}, force = 'player', create_build_effect_smoke = false})
+    -- connect_entities(combipower, checker, defines.wire_connector_id.circuit_green)
+
+    -- combipower.connect_neighbour({wire = defines.wire_type.green, target_entity = checker, target_circuit_id = 1})
+    -- combipower.get_wire_connector(defines.wire_connector_id.circuit_green, true).connect_to(checker.get_wire_connector(defines.wire_connector_id.circuit_green, true), false)
+    -- combipower.connect_neighbour({wire = defines.wire_type.green, target_entity = combimade[#combimade], target_circuit_id = 1})
+    -- combimade[1].connect_neighbour({wire = defines.wire_type.green, target_entity = checker, source_circuit_id = 2, target_circuit_id = 1})
+    -- local speaker =
+    --     surface.create_entity(
+    --     {
+    --         name = 'programmable-speaker',
+    --         position = {x = width * -0.5 - 6, y = -241},
+    --         force = 'player',
+    --         create_build_effect_smoke = false,
+    --         parameters = {playback_volume = 0.6, playback_globally = true, allow_polyphony = false},
+    --         alert_parameters = {show_alert = true, show_on_map = true, icon_signal_id = {type = 'item', name = 'accumulator'}, alert_message = 'Train Is Charging!'}
+    --     }
+    -- )
+    -- speaker.connect_neighbour({wire = defines.wire_type.green, target_entity = checker, target_circuit_id = 2})
+    -- local rules4 = speaker.get_or_create_control_behavior()
+    -- rules4.circuit_condition = {condition = {first_signal = {type = 'virtual', name = 'signal-C'}, second_constant = 0, comparator = '>'}}
+    -- rules4.circuit_parameters = {signal_value_is_pitch = false, instrument_id = 8, note_id = 5}
+    -- local solar1 = surface.create_entity({name = 'solar-panel', position = {x = width * -0.5 - 2, y = -242}, force = 'player', create_build_effect_smoke = false})
+    -- local solar2 = surface.create_entity({name = 'solar-panel', position = {x = width * -0.5 + 1, y = -242}, force = 'player', create_build_effect_smoke = false})
+    -- protect(solar1, true)
+    -- protect(solar2, true)
+    -- protect(combipower, false)
+    -- protect(speaker, false)
+    -- protect(checker, false)

    for k, x in pairs({-1, 0}) do
        for i = 1, 12, 1 do
@@ -196,24 +222,24 @@ function Public.create_wagon_room()
            protect(e, true)
            --e.link_id = 1000 + i + 12 * (k - 1)
            table.insert(objective.comfychests2, e)
-            table.insert(objective.comfychest_invs2, e.get_inventory(defines.inventory.chest))
+            table.insert(objective.comfychest_invs2, e and e.get_inventory(defines.inventory.chest))
        end
    end

    for i = 1, 9, 1 do
        local y = -0.7 * height + 18 + 9 + 18 * (math_floor((i - 1) / 3))
        local x = -0.5 * width + 5 + 9 + 18 * (i % 3)
-        local substation = surface.create_entity({name = 'substation', position = {x, y}, force = 'player', create_build_effect_smoke = false})
-        if i == 3 then
-            substation.disconnect_neighbour(combipower)
-            substation.connect_neighbour({wire = defines.wire_type.green, target_entity = combipower})
-        end
-        protect(substation, true)
+        -- local substation = surface.create_entity({name = 'substation', position = {x, y}, force = 'player', create_build_effect_smoke = false})
+        -- if i == 3 then
+        --     substation.disconnect_neighbour(combipower)
+        --     substation.connect_neighbour({wire = defines.wire_type.green, target_entity = combipower})
+        -- end
+        -- protect(substation, true)
        for j = 1, 4, 1 do
            local xx = x - 2 * j
            local acumulator = surface.create_entity({name = 'accumulator', position = {xx, y}, force = 'player', create_build_effect_smoke = false})
            if i == 3 and j == 1 then
-                acumulator.connect_neighbour({wire = defines.wire_type.green, target_entity = substation})
+                --acumulator.connect_neighbour({wire = defines.wire_type.green, target_entity = substation})
            end
            protect(acumulator, true)
            table.insert(objective.accumulators, acumulator)
@@ -234,8 +260,11 @@ function Public.create_wagon_room()
    rendering.draw_text {
        text = {'chronosphere.train_laser_battery'},
        surface = surface,
-        target = laser_battery,
-        target_offset = {0, -2.5},
+        target = {
+            entity = laser_battery,
+            offset = {0, -2.5},
+            position = laser_battery and laser_battery.position
+        },
        color = objective.locomotive.color,
        scale = 1.00,
        font = 'default-game',
@@ -251,7 +280,11 @@ function Public.create_wagon_room()
    rendering.draw_text {
        text = {'chronosphere.train_repair_chest'},
        surface = surface,
-        target = repairchest,
+        target = {
+            entity = repairchest,
+            offset = {0, -2.5},
+            position = repairchest and repairchest.position
+        },
        target_offset = {0, -2.5},
        color = objective.locomotive.color,
        scale = 1.00,
@@ -267,8 +300,11 @@ function Public.create_wagon_room()
        rendering.draw_sprite {
            sprite = upgrades[i].sprite,
            surface = surface,
-            target = e,
-            target_offset = {0, -1.3},
+            target = {
+                entity = e,
+                offset = {0, -1.3},
+                position = e and e.position
+            },
            font = 'default-game',
            visible = true
        }
@@ -277,7 +313,11 @@ function Public.create_wagon_room()
    rendering.draw_text {
        text = {'chronosphere.train_market'},
        surface = surface,
-        target = market,
+        target = {
+            entity = market,
+            offset = {0, -3.5},
+            position = market and market.position
+        },
        target_offset = {0, -3.5},
        color = objective.locomotive.color,
        scale = 1.00,
@@ -288,8 +328,11 @@ function Public.create_wagon_room()
    rendering.draw_text {
        text = {'chronosphere.train_upgrades'},
        surface = surface,
-        target = objective.upgradechest[8],
-        target_offset = {0, -3.5},
+        target = {
+            entity = objective.upgradechest[8],
+            offset = {0, -3.5},
+            position = objective.upgradechest[8].position
+        },
        color = objective.locomotive.color,
        scale = 1.00,
        font = 'default-game',
@@ -299,8 +342,11 @@ function Public.create_wagon_room()
    rendering.draw_text {
        text = {'chronosphere.train_upgrades_sub'},
        surface = surface,
-        target = objective.upgradechest[8],
-        target_offset = {0, -2.5},
+        target = {
+            entity = objective.upgradechest[8],
+            offset = {0, -2.5},
+            position = objective.upgradechest[8].position
+        },
        color = objective.locomotive.color,
        scale = 0.80,
        font = 'default-game',
@@ -309,6 +355,7 @@ function Public.create_wagon_room()
    }

    for _, offer in pairs(Balance.market_offers()) do
+        if not market or not market.valid then break end
        market.add_market_item(offer)
    end

@@ -324,6 +371,7 @@ function Public.create_wagon_room()
    objective.car_exits = {}
    for i = 1, 6, 1 do
        local e = surface.create_entity({name = 'car', position = car_pos[i], force = 'player', create_build_effect_smoke = false})
+        if not e or not e.valid then break end
        e.get_inventory(defines.inventory.fuel).insert({name = 'wood', count = 16})
        protect(e, false)
        objective.car_exits[i] = e
@@ -352,7 +400,9 @@ function Public.create_wagon_room()
            break
        end
        local e = surface.create_entity({name = 'wooden-chest', position = positions[i], force = 'player', create_build_effect_smoke = false})
+        if not e or not e.valid then break end
        local inventory = e.get_inventory(defines.inventory.chest)
+        if not inventory or not inventory.valid then break end
        inventory.insert({name = 'raw-fish', count = math_random(2, 5)})
        i = i + 1
    end
@@ -371,7 +421,9 @@ function Public.create_wagon_room()
            break
        end
        local e = surface.create_entity({name = 'wooden-chest', position = positions[i], force = 'player', create_build_effect_smoke = false})
+        if not e or not e.valid then break end
        local inventory = e.get_inventory(defines.inventory.chest)
+        if not inventory or not inventory.valid then break end
        inventory.insert(cargo_boxes[loot_i])
        i = i + 1
    end
@@ -389,6 +441,7 @@ function Public.create_wagon_room()
        e.rotatable = false
        Factories.register_train_assembler(e, key)
        if List[key].kind == 'assembler' or List[key].kind == 'fluid-assembler' then
+            if not e or not e.valid then break end
            e.set_recipe(List[key].recipe_override or List[key].name)
            e.recipe_locked = true
            e.direction = defines.direction.south
--- a/maps/chronosphere/worlds/maze.lua
+++ b/maps/chronosphere/worlds/maze.lua
@@ -42,7 +42,7 @@ local function path_tile(p, tiles, entities, treasure, things)
        end
    else
        if random(1, 150) == 1 and Functions.distance(p.x, p.y) > 200 then
-            local evo = game.forces['enemy'].evolution_factor
+            local evo = game.forces['enemy'].get_evolution_factor(game.get_surface(objective.active_surface_index))
            entities[#entities + 1] = {name = Raffle.worms[random(1 + floor(evo * 8), floor(1 + evo * 16))], position = p, spawn_decorations = true}
        end
    end
--- a/maps/chronosphere/worlds/swamp.lua
+++ b/maps/chronosphere/worlds/swamp.lua
@@ -9,7 +9,7 @@ local Chrono_table = require 'maps.chronosphere.table'
 local function process_tile(p, seed, tiles, entities, treasure)
    local objective = Chrono_table.get_table()
    local noise1 = Functions.get_noise('scrapyard', p, seed)
-    local evo = game.forces['enemy'].evolution_factor
+    local evo = game.forces.enemy.get_evolution_factor(game.get_surface(objective.active_surface_index))
    local handicap = max(0, 120 - objective.chronojumps * 20)

    if noise1 < -0.70 or noise1 > 0.70 then
--- a/maps/expanse/main.lua
+++ b/maps/expanse/main.lua
@@ -14,7 +14,6 @@ local Global = require 'utils.global'
 local Map_info = require 'modules.map_info'
 local Gui = require 'utils.gui'
 local format_number = require 'util'.format_number
-local Random = require 'maps.chronosphere.random'
 local Autostash = require 'modules.autostash'

 local expanse = {
@@ -125,7 +124,7 @@ local function reset()
    Functions.expand(expanse, { x = 0, y = 0 })

    for _, player in pairs(game.players) do
-        player.teleport(surface.find_non_colliding_position('character', { expanse.square_size * 0.5, expanse.square_size * 0.5 }, 8, 0.5), surface)
+        player.teleport(surface.find_non_colliding_position('character', { expanse.square_size * 0.5, expanse.square_size * 0.5 }, 8, 0.5) or {5, 5}, surface)
    end
 end

@@ -241,7 +240,7 @@ local function container_opened(event)
        game.print({ 'expanse.tile_unlock', colored_player_name, { 'expanse.gps', math.floor(expansion_position.x), math.floor(expansion_position.y), 'expanse' } })
        expanse.size = (expanse.size or 1) + 1
        if math.random(1, 4) == 1 then
-            if surface.count_tiles_filtered({ position = expansion_position, radius = 6, collision_mask = 'water_tile' }) > 40 then
+            if surface and surface.count_tiles_filtered({ position = expansion_position, radius = 6, collision_mask = 'water_tile' }) > 40 then
                return
            end
            local render = rendering.draw_sprite {
@@ -424,7 +423,7 @@ local function create_main_frame(player)
    frame.add({ type = 'label', name = 'biters', caption = { 'expanse.stats_attack', #expanse.invasion_candidates, invasion_numbers.candidates, invasion_numbers.groups } })
    local scroll = frame.add({ type = 'scroll-pane', name = 'scroll_pane', horizontal_scroll_policy = 'never', vertical_scroll_policy = 'auto-and-reserve-space' })
    local frame_table = scroll.add({ type = 'table', name = 'resource_stats', column_count = 8 })
-    for name, count in Random.spairs(expanse.cost_stats, function (t, a, b) return t[a] > t[b] end) do
+    for name, count in table.spairs(expanse.cost_stats, function (t, a, b) return t[a] > t[b] end) do
        resource_stats(frame_table, name, count)
    end
 end
--- a/modules/admins_operate_biters.lua
+++ b/modules/admins_operate_biters.lua
@@ -1,5 +1,6 @@
 --luacheck: ignore
-local event = require 'utils.event'
+local Event = require 'utils.event'
+local AI = require 'utils.functions.AI'
 local math_random = math.random
 local math_floor = math.floor
 storage.biter_command = {}
@@ -31,29 +32,9 @@ local worm_raffle = {
    'behemoth-worm-turret'
 }

-local function shuffle(tbl)
-    local size = #tbl
-    for i = size, 1, -1 do
-        local rand = math_random(size)
-        tbl[i], tbl[rand] = tbl[rand], tbl[i]
-    end
-    return tbl
-end

-local function is_closer(pos1, pos2, pos)
-    return ((pos1.x - pos.x) ^ 2 + (pos1.y - pos.y) ^ 2) < ((pos2.x - pos.x) ^ 2 + (pos2.y - pos.y) ^ 2)
-end

-local function shuffle_distance(tbl, position)
-    local size = #tbl
-    for i = size, 1, -1 do
-        local rand = math_random(size)
-        if is_closer(tbl[i].position, tbl[rand].position, position) and i > rand then
-            tbl[i], tbl[rand] = tbl[rand], tbl[i]
-        end
-    end
-    return tbl
-end
+

 local function get_evo(force)
    local evo = math_floor(game.forces['enemy'].evolution_factor * 20)
@@ -71,7 +52,7 @@ local function place_nest_near_unit_group(group)
        return false
    end
    local units = group.members
-    shuffle(units)
+    table.shuffle_table(units)
    for i = 1, 5, 1 do
        if not units[i].valid then
            return false
@@ -105,7 +86,7 @@ local function build_worm(group)
        return false
    end
    local units = group.members
-    shuffle(units)
+    table.shuffle_table(units)
    for i = 1, 5, 1 do
        if not units[i].valid then
            return false
@@ -142,15 +123,6 @@ end

 -----------commands-----------

-local function move_to(position, distraction)
-    local command = {
-        type = defines.command.go_to_location,
-        destination = position,
-        distraction = distraction,
-        pathfind_flags = { allow_destroy_friendly_entities = true }
-    }
-    return command
-end

 -- local function attackmaincommand(target)
 --   local wave_defense_table = WD.get_table()
@@ -164,34 +136,7 @@ end
 --   return command
 -- end

-local function attackareacommand(position)
-    local command = {
-        type = defines.command.attack_area,
-        destination = position,
-        radius = 25,
-        distraction = defines.distraction.by_enemy
-    }
-    return command
-end

-local function attackobstaclescommand(surface, position)
-    local commands = {}
-    local obstacles = surface.find_entities_filtered { position = position, radius = 20, type = { 'simple-entity', 'tree' }, limit = 100 }
-    if obstacles then
-        shuffle(obstacles)
-        shuffle_distance(obstacles, position)
-        for i = 1, #obstacles, 1 do
-            if obstacles[i].valid then
-                commands[#commands + 1] = {
-                    type = defines.command.attack,
-                    target = obstacles[i],
-                    distraction = defines.distraction.by_enemy
-                }
-            end
-        end
-    end
-    return commands
-end

 local function get_coords(group, source_player)
    local position
@@ -231,14 +176,14 @@ local function disband(group, source_player)
 end

 local function movetome(group, source_player)
-    group.set_command(move_to(source_player.position, defines.distraction.none))
+    group.set_command(AI.command_move_to(source_player.position, defines.distraction.none))
    flying_text(nil, 1, group.position, source_player)
 end

 local function movetoposition(group, source_player)
    local position = get_coords(group, source_player)
    if position then
-        group.set_command(move_to(position, defines.distraction.none))
+        group.set_command(AI.command_move_to(position, defines.distraction.none))
        flying_text(nil, 1, group.position, source_player)
    else
        flying_text(nil, 2, group.position, source_player)
@@ -246,14 +191,14 @@ local function movetoposition(group, source_player)
 end

 local function patroltome(group, source_player)
-    group.set_command(move_to(source_player.position, defines.distraction.by_enemy))
+    group.set_command(AI.command_move_to(source_player.position, defines.distraction.by_enemy))
    flying_text(nil, 1, group.position, source_player)
 end

 local function patroltoposition(group, source_player)
    local position = get_coords(group, source_player)
    if position then
-        group.set_command(move_to(position, defines.distraction.by_enemy))
+        group.set_command(AI.command_move_to(position, defines.distraction.by_enemy))
        flying_text(nil, 1, group.position, source_player)
    else
        flying_text(nil, 2, group.position, source_player)
@@ -288,11 +233,11 @@ end

 local function attackenemiesaround(group, source_player)
    flying_text(nil, 3, group.position, source_player)
-    group.set_command(attackareacommand(group.position))
+    group.set_command(AI.command_attack_area(group.position, 25))
 end

 local function attackobstaclesaround(group, source_player)
-    local commands = attackobstaclescommand(group.surface, group.position)
+    local commands = AI.command_attack_obstacles(group.surface, group.position)
    if #commands > 1 then
        group.set_command(
            {
@@ -309,12 +254,12 @@ local function attackobstaclesaround(group, source_player)
 end

 local function attackenemiesaroundme(group, source_player)
-    group.set_command(attackareacommand(source_player.position))
+    group.set_command(AI.command_attack_area(source_player.position, 25))
    flying_text(nil, 3, group.position, source_player)
 end

 local function attackobstaclesaroundme(group, source_player)
-    local commands = attackobstaclescommand(source_player.surface, source_player.position)
+    local commands = AI.command_attack_obstacles(source_player.surface, source_player.position)
    if #commands > 1 then
        group.set_command(
            {
@@ -708,7 +653,7 @@ local function on_unit_removed_from_group(event)
    end
 end

-event.add(defines.events.on_unit_removed_from_group, on_unit_removed_from_group)
-event.add(defines.events.on_unit_group_created, on_unit_group_created)
-event.add(defines.events.on_player_joined_game, on_player_joined_game)
-event.add(defines.events.on_gui_click, on_gui_click)
+Event.add(defines.events.on_unit_removed_from_group, on_unit_removed_from_group)
+Event.add(defines.events.on_unit_group_created, on_unit_group_created)
+Event.add(defines.events.on_player_joined_game, on_player_joined_game)
+Event.add(defines.events.on_gui_click, on_gui_click)
--- a/modules/biters_yield_coins.lua
+++ b/modules/biters_yield_coins.lua
@@ -103,13 +103,13 @@ local function on_entity_died(event)
            end
        end
        if entities_that_earn_coins[event.cause.name] then
-            event.entity.surface.spill_item_stack(event.cause.position, { name = 'coin', count = coin_count }, true)
+            event.entity.surface.spill_item_stack({position = event.cause.position, stack = { name = 'coin', count = coin_count }, enable_looted = true})
            reward_has_been_given = true
        end
    end

    if reward_has_been_given == false then
-        event.entity.surface.spill_item_stack(event.entity.position, { name = 'coin', count = coin_count }, true)
+        event.entity.surface.spill_item_stack({position = event.entity.position, stack = { name = 'coin', count = coin_count }, enable_looted = true})
    end
 end

--- a/modules/biters_yield_ore.lua
+++ b/modules/biters_yield_ore.lua
@@ -56,7 +56,7 @@ local function on_tick()
        local surface = game.surfaces[entry[3]]
        for _ = 1, 3, 1 do
            local vector = drop_vectors[math_random(1, size_of_drop_vectors)]
-            surface.spill_item_stack({ entry[1][1] + vector[1], entry[1][2] + vector[2] }, { name = drop_raffle[math_random(1, size_of_drop_raffle)], count = 1 }, true)
+            surface.spill_item_stack({position = { entry[1][1] + vector[1], entry[1][2] + vector[2] }, stack = { name = drop_raffle[math_random(1, size_of_drop_raffle)], count = 1 }, enable_looted = true})
            storage.biters_drop_ore[key][2] = storage.biters_drop_ore[key][2] - 1
            if storage.biters_drop_ore[key][2] <= 0 then
                table_remove(storage.biters_drop_ore, key)
--- a/utils/functions/AI.lua
+++ b/utils/functions/AI.lua
@@ -0,0 +1,108 @@
+--library to make working with unit commands easier
+
+local Public = {}
+
+local Global = require 'utils.global'
+local Utils = require 'utils.utils'
+
+---Command to move
+---@param position MapPosition
+---@param distraction defines.distraction|nil
+function Public.command_move_to(position, distraction)
+    local command = {
+        type = defines.command.go_to_location,
+        destination = position,
+        distraction = distraction or defines.distraction.by_enemy,
+        no_break = true
+    }
+    return command
+end
+
+---Command to attack entity
+---@param target LuaEntity
+---@param distraction defines.distraction|nil
+function Public.command_attack_target(target, distraction)
+    local command = {
+        type = defines.command.attack,
+        target = target,
+        distraction = distraction or defines.distraction.by_enemy
+    }
+    return command
+end
+
+---Command to attack things in area
+---@param position MapPosition
+---@param radius integer
+---@param distraction defines.distraction|nil
+function Public.command_attack_area(position, radius, distraction)
+    local command = {
+        type = defines.command.attack_area,
+        destination = position,
+        radius = radius or 25,
+        distraction = distraction or defines.distraction.by_enemy
+    }
+    return command
+end
+
+---Command to attack natural obstacles
+---@param surface LuaSurface
+---@param position MapPosition
+---@param distraction defines.distraction|nil
+function Public.command_attack_obstacles(surface, position, distraction)
+    local commands = {}
+    local obstacles = surface.find_entities_filtered {position = position, radius = 25, type = {'simple-entity', 'tree', 'simple-entity-with-owner'}, limit = 100}
+    if obstacles then
+        --table.shuffle_table(obstacles)
+        table.shuffle_by_distance(obstacles, position)
+        for i = 1, #obstacles, 1 do
+            if obstacles[i].valid then
+                commands[#commands + 1] = {
+                    type = defines.command.attack,
+                    target = obstacles[i],
+                    distraction = distraction
+                }
+            end
+        end
+    end
+    commands[#commands + 1] = Public.command_move_to(position)
+    local command = {
+        type = defines.command.compound,
+        structure_type = defines.compound_command.return_last,
+        commands = commands
+    }
+    return command
+end
+
+---Give list of commands to unit or group
+---@param unit LuaCommandable
+---@param commands Command
+function Public.multicommand(unit, commands)
+    if #commands > 0 then
+        local command = {
+            type = defines.command.compound,
+            structure_type = defines.compound_command.return_last,
+            commands = commands
+        }
+        unit.set_command(command)
+    end
+end
+
+---Give list of commands to unit or group
+---@param surface LuaSurface
+---@param target LuaEntity
+---@param force LuaForce
+---@param size_multiplier number|nil #defaults to 1 if nil or less than 0
+function Public.multi_attack(surface, target, force, size_multiplier)
+    surface.set_multi_command(
+        {
+            command = Public.command_attack_target(target),
+            unit_count = 16 + math.random(1, math.floor(1 + force.get_evolution_factor(surface) * 100)) * ((size_multiplier or 1) > 0 and size_multiplier or 1),
+            force = force,
+            unit_search_distance = 512
+        }
+    )
+end
+
+---TODO: more advanced functions and direct LuaCommandable stuff
+
+return Public