diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..83fabae
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+build
+build/*
+factorio_mods
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..e0f7493
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,13 @@
+Copyright (c) 2016, Afforess
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..e6277ce
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,42 @@
+PACKAGE_NAME := Big_Brother
+VERSION_STRING := 0.1.0
+
+OUTPUT_NAME := $(PACKAGE_NAME)_$(VERSION_STRING)
+OUTPUT_DIR := build/$(OUTPUT_NAME)
+
+PKG_COPY := $(wildcard *.md) graphics locale
+
+SED_FILES := $(shell find . -iname '*.json' -type f -not -path "./build/*") $(shell find . -iname '*.lua' -type f -not -path "./build/*")
+OUT_FILES := $(SED_FILES:%=$(OUTPUT_DIR)/%)
+
+SED_EXPRS := -e 's/{{MOD_NAME}}/$(PACKAGE_NAME)/g'
+SED_EXPRS += -e 's/{{VERSION}}/$(VERSION_STRING)/g'
+
+all: clean package install_mod
+
+package-copy: $(PKG_DIRS) $(PKG_FILES)
+ mkdir -p $(OUTPUT_DIR)
+ifneq ($(PKG_COPY),)
+ cp -r $(PKG_COPY) build/$(OUTPUT_NAME)
+endif
+
+$(OUTPUT_DIR)/%.lua: %.lua
+ @mkdir -p $(@D)
+ @sed $(SED_EXPRS) $< > $@
+ luac -p $@
+
+$(OUTPUT_DIR)/%: %
+ mkdir -p $(@D)
+ sed $(SED_EXPRS) $< > $@
+
+package: package-copy $(OUT_FILES)
+ cd build && zip -r $(OUTPUT_NAME).zip $(OUTPUT_NAME)
+
+clean:
+ rm -rf build/
+
+install_mod:
+ if [ -L factorio_mods ] ; \
+ then \
+ cp -R build/$(OUTPUT_NAME) factorio_mods ; \
+ fi;
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e93fbb1
--- /dev/null
+++ b/README.md
@@ -0,0 +1,12 @@
+Repository for the Factorio Concrete Logistics mod.
+
+Description
+===========
+
+Mod compatibility
+=================
+Requires color-coding factorio mod.
+
+Contributing
+============
+Contributions are welcome.
diff --git a/control.lua b/control.lua
new file mode 100644
index 0000000..508385c
--- /dev/null
+++ b/control.lua
@@ -0,0 +1,263 @@
+require 'defines'
+require 'stdlib/string'
+require 'stdlib/surface'
+require 'stdlib/table'
+require 'stdlib/event/event'
+require 'stdlib/log/logger'
+require 'stdlib/area/position'
+require 'stdlib/entity/entity'
+
+LOGGER = Logger.new('Big_Brother', 'main', true)
+MAX_SURVEILLANCE_DISTANCE = 25000
+MAX_SURVEILLANCE_DISTANCE_SQUARED = MAX_SURVEILLANCE_DISTANCE * MAX_SURVEILLANCE_DISTANCE
+
+Event.register({defines.events.on_built_entity, defines.events.on_robot_built_entity}, function(event)
+ local entity = event.created_entity
+ local name = entity.name
+ if name == 'radar' then
+ track_entity('radars', entity)
+ upgrade_radars(entity.force)
+ elseif name == 'big-electric-pole' then
+ track_entity('power_poles', entity)
+ if entity.force.technologies['surveillance-2'].researched then
+ update_surveillance(entity, false)
+ end
+ elseif entity.type == 'car' then
+ track_entity('vehicles', entity)
+ update_surveillance(entity, true)
+ elseif entity.type == 'locomotive' then
+ track_entity('trains', entity)
+ update_surveillance(entity, true)
+ elseif entity.name == 'big_brother-surveillance-center' then
+ entity.backer_name = ''
+ track_entity('surveillance_centers', entity)
+ if global.vehicles then
+ for _, vehicle in pairs(global.vehicles) do
+ update_surveillance(vehicle, true)
+ end
+ end
+ if global.trains then
+ for _, train in pairs(global.trains) do
+ update_surveillance(train, true)
+ end
+ end
+ end
+end)
+
+-- Scan the map once if the mod has never been loaded (then deregister on_tick)
+Event.register(defines.events.on_tick, function(event)
+ if not global.scanned_map then
+ if not global.map_scan_countdown then global.map_scan_countdown = 120 end
+ global.map_scan_countdown = global.map_scan_countdown - 1
+ if global.map_scan_countdown <= 0 then
+ Event.remove(defines.events.on_tick, event._handler)
+ -- track all radars
+ local radars = Surface.find_all_entities({name = 'radar'})
+ for i = 1, #radars do
+ track_entity('radars', radars[i])
+ end
+ for _, force in pairs(game.forces) do
+ upgrade_radars(force)
+ end
+
+ -- track all vehicles
+ local vehicles = Surface.find_all_entities({type = 'car'})
+ for i = 1, #vehicles do
+ track_entity('vehicles', vehicles[i])
+ end
+
+ -- track all trains
+ local trains = Surface.find_all_entities({type = 'locomotive'})
+ LOGGER.log("Locomotives found: " .. #trains)
+ for i = 1, #trains do
+ track_entity('trains', trains[i])
+ end
+
+ -- track all big-electric-poles
+ local power_poles = Surface.find_all_entities({name = 'big-electric-pole'})
+ for i = 1, #power_poles do
+ track_entity('power_poles', power_poles[i])
+ end
+
+ global.map_scan_countdown = nil
+ global.scanned_map = true
+ end
+ end
+end)
+
+Event.register(defines.events.on_research_finished, function(event)
+ local tech_name = event.research.name
+ if tech_name:starts_with('radar-amplifier') or tech_name:starts_with('radar-efficiency') then
+ -- update radars in 1 tick
+ local force = event.research.force
+ Event.register(defines.events.on_tick, function(event)
+ upgrade_radars(force)
+
+ Event.remove(defines.events.on_tick, event._handler)
+ end)
+ elseif tech_name == 'surveillance-2' then
+ if global.power_poles and global.surveillance_centers then
+ local power_poles = global.power_poles
+ for i = #power_poles, 1, -1 do
+ local entity = power_poles[i]
+ if entity.valid then
+ update_surveillance(entity, false)
+ else
+ table.remove(power_poles, i)
+ end
+ end
+ end
+ end
+end)
+
+Event.register(defines.events.on_sector_scanned, function(event)
+ if not global.following then return end
+ if event.radar.name == 'big_brother-surveillance-center' then
+ for i = #global.following, 1, -1 do
+ local entity = global.following[i]
+ if not entity.valid then
+ table.remove(global.following, i)
+ else
+ if entity.type == 'locomotive' then
+ local train = entity.train
+ local speed = train.speed
+ if math.abs(speed) > 0.05 then
+ chart_locomotive(entity, speed)
+ else
+ for _, wagon in pairs(train.cargo_wagons) do
+ entity.force.chart(entity.surface, Position.expand_to_area(wagon.position, 1))
+ end
+ end
+ else
+ entity.force.chart(entity.surface, Position.expand_to_area(pos, 1))
+ end
+ end
+ end
+ end
+end)
+
+function chart_locomotive(entity, speed)
+ local pos = entity.position
+
+ local x = pos.x + 16 * math.sin(2 * math.pi * entity.orientation)
+ local y = pos.y - 16 * math.cos(2 * math.pi * entity.orientation)
+ local area = {{x = x, y = y}, pos}
+ if pos.x < x then
+ area[1].x = pos.x
+ area[2].x = x
+ end
+ if pos.y < y then
+ area[1].y = pos.y
+ area[2].y = y
+ end
+ entity.force.chart(entity.surface, area)
+end
+
+function upgrade_radars(force)
+ if not global.radars then return end
+
+ local radar_efficiency_level = calculate_tech_level(force, 'radar-efficiency', 9)
+ local radar_amplifier_level = calculate_tech_level(force, 'radar-amplifier', 9)
+ local radar_name = 'big_brother-radar_ra-' .. radar_amplifier_level .. '_re-' .. radar_efficiency_level
+ LOGGER.log("Upgrading " .. force.name .. "'s radars to " .. radar_name)
+ for i = #global.radars, 1, -1 do
+ local radar = global.radars[i]
+ if not radar.valid then
+ table.remove(global.radars, i)
+ elseif radar.force == force then
+ local pos = radar.position
+ local direction = radar.direction
+ local health = radar.health
+ local surface = radar.surface
+
+ LOGGER.log("Upgrading radar {" .. radar.name .. "} at " .. serpent.line(pos, {comment=false}))
+
+ radar.destroy()
+ local new_radar = surface.create_entity({ name = radar_name, position = pos, direction = direction, force = force})
+ new_radar.health = health
+
+ global.radars[i] = new_radar
+ end
+ end
+end
+
+function calculate_tech_level(force, tech_name, max_levels)
+ for i = max_levels, 1, -1 do
+ local full_tech_name = tech_name
+ if i > 1 then
+ full_tech_name = tech_name .. '-' .. i
+ end
+
+ if force.technologies[full_tech_name].researched then
+ return i
+ end
+ end
+ return 0
+end
+
+function update_surveillance(entity, follow)
+ local surv_center = get_nearest_surveillance_center(entity.position, entity.surface, entity.force)
+ if surv_center then
+ local data = Entity.get_data(entity)
+ if not data then
+ if not follow then
+ local surveillance = entity.surface.create_entity({name = 'big_brother-surveillance-small', position = entity.position, force = entity.force})
+ surveillance.destructible = false
+ surveillance.operable = false
+ surveillance.minable = false
+ data = { surveillance = surveillance }
+ Entity.set_data(entity, data)
+ else
+ track_entity('following', entity)
+ end
+ end
+ else
+ if follow then
+ if not global.following then return end
+ for i = #global.following, 1, -1 do
+ local data = global.following[i]
+ if data.entity == entity then
+ table.remove(global.following, i)
+ end
+ end
+ else
+ local data = Entity.get_data(entity)
+ if data and data.surveillance and data.surveillance.valid then
+ data.surveillance.destroy()
+ Entity.set_data(entity, nil)
+ end
+ end
+ end
+end
+
+function get_nearest_surveillance_center(position, surface, force)
+ if global.surveillance_centers then
+ global.surveillance_centers = table.filter(global.surveillance_centers, Game.VALID_FILTER)
+ local list = table.filter(global.surveillance_centers, function(entity)
+ return entity.surface == surface and entity.force == force
+ end)
+ table.sort(list, function(a, b)
+ return Position.distance_squared(a.position, position) < Position.distance_squared(b.position, position)
+ end)
+ local nearest = table.first(list)
+ if nearest and Position.distance_squared(nearest.position, position) < MAX_SURVEILLANCE_DISTANCE_SQUARED then
+ return nearest
+ end
+ end
+end
+
+function track_entity(category, entity)
+ if not global[category] then global[category] = {} end
+ local entity_list = global[category]
+ for i = #entity_list, 1, -1 do
+ local e = entity_list[i]
+ if not e.valid then
+ table.remove(entity_list, i)
+ elseif e == entity then
+ return false
+ end
+ end
+
+ table.insert(entity_list, entity)
+ return true
+end
diff --git a/data-updates.lua b/data-updates.lua
new file mode 100644
index 0000000..e69de29
diff --git a/data.lua b/data.lua
new file mode 100755
index 0000000..f9fbb0e
--- /dev/null
+++ b/data.lua
@@ -0,0 +1,5 @@
+require("prototypes.technology.radar")
+require("prototypes.item.surveillance")
+require("prototypes.recipe.surveillance")
+require("prototypes.entity.radar")
+require("prototypes.entity.surveillance")
diff --git a/graphics/entity/radar/radar1.png b/graphics/entity/radar/radar1.png
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diff --git a/graphics/entity/radar/split.sh b/graphics/entity/radar/split.sh
new file mode 100755
index 0000000..de0bb38
--- /dev/null
+++ b/graphics/entity/radar/split.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+files=(*.png)
+count=64
+for ((i=${#files[@]}-1; i >= 0; i--)); do
+ convert -crop 306x262 "${files[$i]}" tile_%d.png
+ for j in {0..3}; do
+ mv "tile_$((3-${j})).png" "tile_${count}.png"
+ echo "Moving tile_$((3-${j})).png to tile_${count}.png"
+ count=$((count-1))
+ done
+done
+
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diff --git a/graphics/icons/radar-amplifier.png b/graphics/icons/radar-amplifier.png
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diff --git a/info.json b/info.json
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index 0000000..b115ce7
--- /dev/null
+++ b/info.json
@@ -0,0 +1,9 @@
+{
+ "name": "Big_Brother",
+ "version": "{{VERSION}}",
+ "title": "Big Brother",
+ "author": "Afforess",
+ "homepage": "http://afforess.com",
+ "description": "Proudly building the perfect surveillance state",
+ "dependencies": ["base >= 0.12.31"]
+}
diff --git a/locale/en/big-brother.cfg b/locale/en/big-brother.cfg
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index 0000000..cf00a67
--- /dev/null
+++ b/locale/en/big-brother.cfg
@@ -0,0 +1,128 @@
+
+[entity-name]
+big_brother-radar_ra-0_re-0=Radar
+big_brother-radar_ra-1_re-0=Radar
+big_brother-radar_ra-2_re-0=Radar
+big_brother-radar_ra-3_re-0=Radar
+big_brother-radar_ra-4_re-0=Radar
+big_brother-radar_ra-5_re-0=Radar
+big_brother-radar_ra-6_re-0=Radar
+big_brother-radar_ra-7_re-0=Radar
+big_brother-radar_ra-8_re-0=Radar
+big_brother-radar_ra-9_re-0=Radar
+
+big_brother-radar_ra-0_re-1=Radar
+big_brother-radar_ra-1_re-1=Radar
+big_brother-radar_ra-2_re-1=Radar
+big_brother-radar_ra-3_re-1=Radar
+big_brother-radar_ra-4_re-1=Radar
+big_brother-radar_ra-5_re-1=Radar
+big_brother-radar_ra-6_re-1=Radar
+big_brother-radar_ra-7_re-1=Radar
+big_brother-radar_ra-8_re-1=Radar
+big_brother-radar_ra-9_re-1=Radar
+
+big_brother-radar_ra-0_re-2=Radar
+big_brother-radar_ra-1_re-2=Radar
+big_brother-radar_ra-2_re-2=Radar
+big_brother-radar_ra-3_re-2=Radar
+big_brother-radar_ra-4_re-2=Radar
+big_brother-radar_ra-5_re-2=Radar
+big_brother-radar_ra-6_re-2=Radar
+big_brother-radar_ra-7_re-2=Radar
+big_brother-radar_ra-8_re-2=Radar
+big_brother-radar_ra-9_re-2=Radar
+
+big_brother-radar_ra-0_re-3=Radar
+big_brother-radar_ra-1_re-3=Radar
+big_brother-radar_ra-2_re-3=Radar
+big_brother-radar_ra-3_re-3=Radar
+big_brother-radar_ra-4_re-3=Radar
+big_brother-radar_ra-5_re-3=Radar
+big_brother-radar_ra-6_re-3=Radar
+big_brother-radar_ra-7_re-3=Radar
+big_brother-radar_ra-8_re-3=Radar
+big_brother-radar_ra-9_re-3=Radar
+
+big_brother-radar_ra-0_re-4=Radar
+big_brother-radar_ra-1_re-4=Radar
+big_brother-radar_ra-2_re-4=Radar
+big_brother-radar_ra-3_re-4=Radar
+big_brother-radar_ra-4_re-4=Radar
+big_brother-radar_ra-5_re-4=Radar
+big_brother-radar_ra-6_re-4=Radar
+big_brother-radar_ra-7_re-4=Radar
+big_brother-radar_ra-8_re-4=Radar
+big_brother-radar_ra-9_re-4=Radar
+
+big_brother-radar_ra-0_re-5=Radar
+big_brother-radar_ra-1_re-5=Radar
+big_brother-radar_ra-2_re-5=Radar
+big_brother-radar_ra-3_re-5=Radar
+big_brother-radar_ra-4_re-5=Radar
+big_brother-radar_ra-5_re-5=Radar
+big_brother-radar_ra-6_re-5=Radar
+big_brother-radar_ra-7_re-5=Radar
+big_brother-radar_ra-8_re-5=Radar
+big_brother-radar_ra-9_re-5=Radar
+
+big_brother-radar_ra-0_re-6=Radar
+big_brother-radar_ra-1_re-6=Radar
+big_brother-radar_ra-2_re-6=Radar
+big_brother-radar_ra-3_re-6=Radar
+big_brother-radar_ra-4_re-6=Radar
+big_brother-radar_ra-5_re-6=Radar
+big_brother-radar_ra-6_re-6=Radar
+big_brother-radar_ra-7_re-6=Radar
+big_brother-radar_ra-8_re-6=Radar
+big_brother-radar_ra-9_re-6=Radar
+
+big_brother-radar_ra-0_re-7=Radar
+big_brother-radar_ra-1_re-7=Radar
+big_brother-radar_ra-2_re-7=Radar
+big_brother-radar_ra-3_re-7=Radar
+big_brother-radar_ra-4_re-7=Radar
+big_brother-radar_ra-5_re-7=Radar
+big_brother-radar_ra-6_re-7=Radar
+big_brother-radar_ra-7_re-7=Radar
+big_brother-radar_ra-8_re-7=Radar
+big_brother-radar_ra-9_re-7=Radar
+
+big_brother-radar_ra-0_re-8=Radar
+big_brother-radar_ra-1_re-8=Radar
+big_brother-radar_ra-2_re-8=Radar
+big_brother-radar_ra-3_re-8=Radar
+big_brother-radar_ra-4_re-8=Radar
+big_brother-radar_ra-5_re-8=Radar
+big_brother-radar_ra-6_re-8=Radar
+big_brother-radar_ra-7_re-8=Radar
+big_brother-radar_ra-8_re-8=Radar
+big_brother-radar_ra-9_re-8=Radar
+
+big_brother-radar_ra-0_re-9=Radar
+big_brother-radar_ra-1_re-9=Radar
+big_brother-radar_ra-2_re-9=Radar
+big_brother-radar_ra-3_re-9=Radar
+big_brother-radar_ra-4_re-9=Radar
+big_brother-radar_ra-5_re-9=Radar
+big_brother-radar_ra-6_re-9=Radar
+big_brother-radar_ra-7_re-9=Radar
+big_brother-radar_ra-8_re-9=Radar
+big_brother-radar_ra-9_re-9=Radar
+
+big_brother-surveillance-center=Surveillance center
+big_brother-surveillance-small=Surveillance camera
+
+[item-name]
+big_brother-surveillance-center=Surveillance center
+
+[technology-name]
+radar-amplifier=Radar amplification
+radar-efficiency=Radar efficiency
+surveillance=Surveillance
+
+[technology-description]
+radar-amplifier=Expands the Radar line of sight and scan range
+radar-efficiency=Radars scan distant sectors more quickly
+surveillance=Vehicles and Trains are always in the line of sight on the map
+surveillance-2=Big electric poles are always in the line of sight on the map
diff --git a/prototypes/entity/radar.lua b/prototypes/entity/radar.lua
new file mode 100644
index 0000000..791d520
--- /dev/null
+++ b/prototypes/entity/radar.lua
@@ -0,0 +1,40 @@
+local radars = {}
+
+for radar_amplification_type = 0, 9 do
+ for radar_efficiency_type = 0, 9 do
+ local max_distance_of_sector_revealed = data.raw['radar']['radar'].max_distance_of_sector_revealed + radar_amplification_type * 3
+ local max_distance_of_nearby_sector_revealed = data.raw['radar']['radar'].max_distance_of_nearby_sector_revealed + radar_amplification_type * 2
+ local extra_energy_cost = 75 * radar_amplification_type
+
+ -- base time to scan is ~40s
+ local energy_per_sector = (10000 + extra_energy_cost * 40) / (1 + math.pow(radar_efficiency_type, 1.5))
+
+ local radar = table.deepcopy(data.raw['radar']['radar'])
+ radar.name = 'big_brother-radar_ra-' .. radar_amplification_type .. '_re-' .. radar_efficiency_type
+ radar.max_distance_of_sector_revealed = max_distance_of_sector_revealed
+ radar.max_distance_of_nearby_sector_revealed = max_distance_of_nearby_sector_revealed
+ radar.energy_per_sector = energy_per_sector .. "KJ"
+ radar.energy_usage = (300 + extra_energy_cost) .. "kW"
+ radar.order ="d-c"
+
+ local file_names = {}
+ for i = 1, 64 do
+ table.insert(file_names, "__Big_Brother__/graphics/entity/radar/tile_" .. i .. ".png")
+ end
+ radar.pictures = {
+ apply_projection = false,
+ direction_count = #file_names,
+ filenames = file_names,
+ height = 262,
+ line_length = 1,
+ lines_per_file = 1,
+ priority = "low",
+ scale = 0.5,
+ shift = {0.875, -0.34375},
+ width = 306,
+ }
+ table.insert(radars, radar)
+ end
+end
+
+data:extend(radars)
diff --git a/prototypes/entity/surveillance.lua b/prototypes/entity/surveillance.lua
new file mode 100644
index 0000000..f74ef49
--- /dev/null
+++ b/prototypes/entity/surveillance.lua
@@ -0,0 +1,77 @@
+local file_names = {}
+for i = 0, 63 do
+ table.insert(file_names, "__Big_Brother__/graphics/entity/surveillance/tile-" .. i .. ".png")
+end
+data:extend({
+ {
+ type = "radar",
+ name = "big_brother-surveillance-center",
+ icon = "__Big_Brother__/graphics/icons/surveillance.png",
+ flags = {"placeable-player", "player-creation"},
+ minable = {hardness = 0.2, mining_time = 0.5, result = "big_brother-surveillance-center"},
+ max_health = 400,
+ corpse = "big-remnants",
+ resistances =
+ {
+ {
+ type = "fire",
+ percent = 70
+ }
+ },
+ collision_box = {{-2.1, -2.1}, {2.1, 2.1}},
+ selection_box = {{-2.25, -2.25}, {2.25, 2.25}},
+ energy_per_sector = "400kJ",
+ max_distance_of_sector_revealed = 0,
+ max_distance_of_nearby_sector_revealed = 1,
+ energy_per_nearby_scan = "250kJ",
+ energy_source =
+ {
+ type = "electric",
+ usage_priority = "secondary-input"
+ },
+ energy_usage = "1MW",
+ pictures =
+ {
+ direction_count = #file_names,
+ filenames = file_names,
+ priority = "low",
+ width = 338,
+ height = 280,
+ scale = 0.75,
+ axially_symmetrical = false,
+ apply_projection = false,
+ line_length = 1,
+ lines_per_file = 1,
+ shift = {1.55, 0.9}
+ }
+ },
+ {
+ type = "radar",
+ name = "big_brother-surveillance-small",
+ icon = "__Big_Brother__/graphics/icons/surveillance.png",
+ order = 'd-f',
+ max_health = 100,
+ selectable_in_game = false,
+ energy_per_sector = "10KJ",
+ max_distance_of_sector_revealed = 0,
+ max_distance_of_nearby_sector_revealed = 1,
+ energy_per_nearby_scan = "10kJ",
+ energy_source =
+ {
+ type = "electric",
+ usage_priority = "secondary-input"
+ },
+ energy_usage = "3kW",
+ pictures =
+ {
+ filename = "__base__/graphics/entity/radar/radar.png",
+ priority = "low",
+ width = 0,
+ height = 0,
+ apply_projection = false,
+ direction_count = 1,
+ line_length = 1,
+ shift = {0.0, 0.0}
+ }
+ },
+})
diff --git a/prototypes/item/surveillance.lua b/prototypes/item/surveillance.lua
new file mode 100644
index 0000000..b2b4b53
--- /dev/null
+++ b/prototypes/item/surveillance.lua
@@ -0,0 +1,12 @@
+data:extend({
+ {
+ type = "item",
+ name = "big_brother-surveillance-center",
+ icon = "__Big_Brother__/graphics/icons/surveillance.png",
+ flags = {"goes-to-main-inventory"},
+ subgroup = "defensive-structure",
+ order = "d[radar]-a[surveillance]",
+ place_result = "big_brother-surveillance-center",
+ stack_size = 1
+ }
+})
diff --git a/prototypes/recipe/surveillance.lua b/prototypes/recipe/surveillance.lua
new file mode 100644
index 0000000..b1d54c8
--- /dev/null
+++ b/prototypes/recipe/surveillance.lua
@@ -0,0 +1,15 @@
+data:extend(
+{
+ {
+ type = "recipe",
+ name = "big_brother-surveillance-center",
+ ingredients =
+ {
+ {"radar", 5},
+ {"processing-unit", 5},
+ {"steel-plate", 40},
+ {"copper-cable", 40}
+ },
+ result = "big_brother-surveillance-center"
+ }
+})
diff --git a/prototypes/technology/radar.lua b/prototypes/technology/radar.lua
new file mode 100644
index 0000000..b233ff7
--- /dev/null
+++ b/prototypes/technology/radar.lua
@@ -0,0 +1,384 @@
+data:extend(
+{
+ {
+ type = "technology",
+ name = "radar-amplifier",
+ icon = "__Big_Brother__/graphics/icons/radar-amplifier.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"military", "optics"},
+ unit = {
+ count = 25,
+ ingredients = {
+ {"science-pack-1", 1},
+ },
+ time = 15
+ },
+ order = "e-a-a"
+ },
+ {
+ type = "technology",
+ name = "radar-amplifier-2",
+ icon = "__Big_Brother__/graphics/icons/radar-amplifier.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-amplifier"},
+ unit = {
+ count = 25,
+ ingredients = {
+ {"science-pack-1", 2},
+ {"science-pack-2", 1},
+ },
+ time = 20
+ },
+ upgrade = true,
+ order = "e-a-a"
+ },
+ {
+ type = "technology",
+ name = "radar-amplifier-3",
+ icon = "__Big_Brother__/graphics/icons/radar-amplifier.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-amplifier-2", "circuit-network"},
+ unit = {
+ count = 50,
+ ingredients = {
+ {"science-pack-1", 2},
+ {"science-pack-2", 1},
+ },
+ time = 25
+ },
+ upgrade = true,
+ order = "e-a-a"
+ },
+ {
+ type = "technology",
+ name = "radar-amplifier-4",
+ icon = "__Big_Brother__/graphics/icons/radar-amplifier.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-amplifier-3", "modules"},
+ unit = {
+ count = 80,
+ ingredients = {
+ {"science-pack-1", 2},
+ {"science-pack-2", 1},
+ },
+ time = 30
+ },
+ upgrade = true,
+ order = "e-a-a"
+ },
+ {
+ type = "technology",
+ name = "radar-amplifier-5",
+ icon = "__Big_Brother__/graphics/icons/radar-amplifier.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"effect-transmission", "radar-amplifier-4"},
+ unit = {
+ count = 125,
+ ingredients = {
+ {"science-pack-1", 2},
+ {"science-pack-2", 1},
+ {"science-pack-3", 1},
+ },
+ time = 35
+ },
+ upgrade = true,
+ order = "e-a-a"
+ },
+ {
+ type = "technology",
+ name = "radar-amplifier-6",
+ icon = "__Big_Brother__/graphics/icons/radar-amplifier.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"productivity-module-2", "radar-amplifier-5"},
+ unit = {
+ count = 75,
+ ingredients = {
+ {"science-pack-1", 4},
+ {"science-pack-2", 3},
+ {"science-pack-3", 2},
+ },
+ time = 40
+ },
+ upgrade = true,
+ order = "e-a-a"
+ },
+ {
+ type = "technology",
+ name = "radar-amplifier-7",
+ icon = "__Big_Brother__/graphics/icons/radar-amplifier.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"productivity-module-3", "radar-amplifier-6"},
+ unit = {
+ count = 100,
+ ingredients = {
+ {"science-pack-1", 4},
+ {"science-pack-2", 3},
+ {"science-pack-3", 1},
+ {"alien-science-pack", 2},
+ },
+ time = 45
+ },
+ upgrade = true,
+ order = "e-a-a"
+ },
+ {
+ type = "technology",
+ name = "radar-amplifier-8",
+ icon = "__Big_Brother__/graphics/icons/radar-amplifier.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-amplifier-7"},
+ unit = {
+ count = 130,
+ ingredients = {
+ {"science-pack-1", 4},
+ {"science-pack-2", 3},
+ {"science-pack-3", 1},
+ {"alien-science-pack", 2},
+ },
+ time = 50
+ },
+ upgrade = true,
+ order = "e-a-a"
+ },
+ {
+ type = "technology",
+ name = "radar-amplifier-9",
+ icon = "__Big_Brother__/graphics/icons/radar-amplifier.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-amplifier-8"},
+ unit = {
+ count = 150,
+ ingredients = {
+ {"science-pack-1", 4},
+ {"science-pack-2", 3},
+ {"science-pack-3", 1},
+ {"alien-science-pack", 2},
+ },
+ time = 60
+ },
+ upgrade = true,
+ order = "e-a-a"
+ },
+
+ {
+ type = "technology",
+ name = "radar-efficiency",
+ icon = "__Big_Brother__/graphics/icons/radar-efficiency.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"military", "optics"},
+ unit = {
+ count = 25,
+ ingredients = {
+ {"science-pack-1", 1},
+ },
+ time = 20
+ },
+ order = "e-a-b"
+ },
+ {
+ type = "technology",
+ name = "radar-efficiency-2",
+ icon = "__Big_Brother__/graphics/icons/radar-efficiency.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-efficiency"},
+ unit = {
+ count = 30,
+ ingredients = {
+ {"science-pack-1", 2},
+ {"science-pack-2", 1},
+ },
+ time = 25
+ },
+ upgrade = true,
+ order = "e-a-b"
+ },
+ {
+ type = "technology",
+ name = "radar-efficiency-3",
+ icon = "__Big_Brother__/graphics/icons/radar-efficiency.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-efficiency-2", "advanced-electronics"},
+ unit = {
+ count = 100,
+ ingredients = {
+ {"science-pack-1", 2},
+ {"science-pack-2", 1},
+ },
+ time = 30
+ },
+ upgrade = true,
+ order = "e-a-b"
+ },
+ {
+ type = "technology",
+ name = "radar-efficiency-4",
+ icon = "__Big_Brother__/graphics/icons/radar-efficiency.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-efficiency-3", "laser"},
+ unit = {
+ count = 75,
+ ingredients = {
+ {"science-pack-1", 4},
+ {"science-pack-2", 2},
+ },
+ time = 35
+ },
+ upgrade = true,
+ order = "e-a-b"
+ },
+ {
+ type = "technology",
+ name = "radar-efficiency-5",
+ icon = "__Big_Brother__/graphics/icons/radar-efficiency.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-efficiency-4", "advanced-electronics-2"},
+ unit = {
+ count = 100,
+ ingredients = {
+ {"science-pack-1", 2},
+ {"science-pack-2", 1},
+ {"science-pack-3", 1},
+ },
+ time = 40
+ },
+ upgrade = true,
+ order = "e-a-b"
+ },
+ {
+ type = "technology",
+ name = "radar-efficiency-6",
+ icon = "__Big_Brother__/graphics/icons/radar-efficiency.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-efficiency-5", "effectivity-module-2"},
+ unit = {
+ count = 75,
+ ingredients = {
+ {"science-pack-1", 4},
+ {"science-pack-2", 3},
+ {"science-pack-3", 2},
+ },
+ time = 45
+ },
+ upgrade = true,
+ order = "e-a-b"
+ },
+ {
+ type = "technology",
+ name = "radar-efficiency-7",
+ icon = "__Big_Brother__/graphics/icons/radar-efficiency.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-efficiency-6", "effectivity-module-3"},
+ unit = {
+ count = 100,
+ ingredients = {
+ {"science-pack-1", 4},
+ {"science-pack-2", 3},
+ {"science-pack-3", 1},
+ {"alien-science-pack", 2},
+ },
+ time = 50
+ },
+ upgrade = true,
+ order = "e-a-b"
+ },
+ {
+ type = "technology",
+ name = "radar-efficiency-8",
+ icon = "__Big_Brother__/graphics/icons/radar-efficiency.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-efficiency-7"},
+ unit = {
+ count = 150,
+ ingredients = {
+ {"science-pack-1", 4},
+ {"science-pack-2", 3},
+ {"science-pack-3", 1},
+ {"alien-science-pack", 2},
+ },
+ time = 60
+ },
+ upgrade = true,
+ order = "e-a-b"
+ },
+ {
+ type = "technology",
+ name = "radar-efficiency-9",
+ icon = "__Big_Brother__/graphics/icons/radar-efficiency.png",
+ icon_size = 128,
+ effects = { },
+ prerequisites = {"radar-efficiency-8"},
+ unit = {
+ count = 200,
+ ingredients = {
+ {"science-pack-1", 4},
+ {"science-pack-2", 3},
+ {"science-pack-3", 1},
+ {"alien-science-pack", 2},
+ },
+ time = 70
+ },
+ upgrade = true,
+ order = "e-a-b"
+ },
+
+ {
+ type = "technology",
+ name = "surveillance",
+ icon = "__Big_Brother__/graphics/icons/tech_surveillance.png",
+ icon_size = 128,
+ effects = {
+ {
+ type = "unlock-recipe",
+ recipe = "big_brother-surveillance-center"
+ }
+ },
+ prerequisites = {"radar-amplifier-4", "electric-energy-distribution-1"},
+ unit = {
+ count = 80,
+ ingredients = {
+ {"science-pack-1", 2},
+ {"science-pack-2", 1},
+ {"science-pack-3", 1},
+ },
+ time = 60
+ },
+ order = "e-a-d"
+ },
+ {
+ type = "technology",
+ name = "surveillance-2",
+ icon = "__Big_Brother__/graphics/icons/tech_surveillance.png",
+ icon_size = 128,
+ upgrade = true,
+ effects = { },
+ prerequisites = {"radar-amplifier-5", "surveillance"},
+ unit = {
+ count = 110,
+ ingredients = {
+ {"science-pack-1", 2},
+ {"science-pack-2", 1},
+ {"science-pack-3", 1},
+ },
+ time = 75
+ },
+ order = "e-a-e"
+ }
+}
+)
diff --git a/stdlib/area/area.lua b/stdlib/area/area.lua
new file mode 100644
index 0000000..6df71f8
--- /dev/null
+++ b/stdlib/area/area.lua
@@ -0,0 +1,114 @@
+--- Area module
+-- @module area
+
+require 'stdlib/core'
+require 'stdlib/area/position'
+
+Area = {}
+
+--- Tests if a position {x, y} is inside (inclusive) of area
+-- @param area the area
+-- @param pos the position to check
+-- @return true if the position is inside of the area
+function Area.inside(area, pos)
+ fail_if_missing(pos, "missing pos value")
+ fail_if_missing(area, "missing area value")
+ pos = Position.to_table(pos)
+ area = Area.to_table(area)
+
+ local left_top = Position.to_table(area.left_top)
+ local right_bottom = Position.to_table(area.right_bottom)
+ return pos.x >= left_top.x and pos.y >= left_top.y and pos.x <= right_bottom.x and pos.y <= right_bottom.y
+end
+
+--- Shrinks the size of an area by the given amount
+-- @param area the area
+-- @param amount to shrink each edge of the area inwards by
+-- @return the shrunk area
+function Area.shrink(area, amount)
+ fail_if_missing(area, "missing area value")
+ fail_if_missing(amount, "missing amount value")
+ if amount < 0 then error("Can not shrunk area by a negative amount (see Area.expand)!", 2) end
+ area = Area.to_table(area)
+
+ local left_top = Position.to_table(area.left_top)
+ local right_bottom = Position.to_table(area.right_bottom)
+ return {left_top = {x = left_top.x + amount, y = left_top.y + amount}, right_bottom = {x = right_bottom.x - amount, y = right_bottom.y - amount}}
+end
+
+--- Expands the size of an area by the given amount
+-- @param area the area
+-- @param amount to expand each edge of the area outwards by
+-- @return the expanded area
+function Area.expand(area, amount)
+ fail_if_missing(area, "missing area value")
+ fail_if_missing(amount, "missing amount value")
+ if amount < 0 then error("Can not expand area by a negative amount (see Area.shrink)!", 2) end
+ area = Area.to_table(area)
+
+ local left_top = Position.to_table(area.left_top)
+ local right_bottom = Position.to_table(area.right_bottom)
+ return {left_top = {x = left_top.x - amount, y = left_top.y - amount}, right_bottom = {x = right_bottom.x + amount, y = right_bottom.y + amount}}
+end
+
+--- Offsets the area by the {x, y} values
+-- @param area the area
+-- @param pos the {x, y} amount to offset the area
+-- @return offset area by the position values
+function Area.offset(area, pos)
+ fail_if_missing(area, "missing area value")
+ fail_if_missing(pos, "missing pos value")
+ area = Area.to_table(area)
+
+ return {left_top = Position.add(area.left_top, pos), right_bottom = Position.add(area.right_bottom, pos)}
+end
+
+--- Converts an area to the integer representation, by taking the floor of the left_top and the ceiling of the right_bottom
+-- @param area the area
+-- @return the rounded integer representation
+function Area.round_to_integer(area)
+ fail_if_missing(area, "missing area value")
+ area = Area.to_table(area)
+
+ local left_top = Position.to_table(area.left_top)
+ local right_bottom = Position.to_table(area.right_bottom)
+ return {left_top = {x = math.floor(left_top.x), y = math.floor(left_top.y)},
+ right_bottom = {x = math.ceil(right_bottom.x), y = math.ceil(right_bottom.y)}}
+end
+
+--- Iterates an area. Example:
+--
+-- for x,y in Area.iterate({{0, -5}, {3, -3}}) do
+-- ...
+-- end
+-- @param area the area
+-- @return iterator
+function Area.iterate(area)
+ fail_if_missing(area, "missing area value")
+
+ local iterator = {idx = 0}
+ function iterator.iterate(area)
+ local rx = area.right_bottom.x - area.left_top.x + 1
+ local dx = iterator.idx % rx
+ local dy = math.floor(iterator.idx / rx)
+ iterator.idx = iterator.idx + 1
+ if (area.left_top.y + dy) > area.right_bottom.y then
+ return
+ end
+ return (area.left_top.x + dx), (area.left_top.y + dy)
+ end
+ return iterator.iterate, Area.to_table(area), 0
+end
+
+--- Converts an area in the array format to an array in the table format
+-- @param area_arr the area to convert
+-- @return a converted position, { x = pos_arr[1], y = pos_arr[2] }
+function Area.to_table(area_arr)
+ fail_if_missing(area_arr, "missing area value")
+ if #area_arr == 2 then
+ return { left_top = Position.to_table(area_arr[1]), right_bottom = Position.to_table(area_arr[2]) }
+ end
+ return area_arr
+end
+
+return Area
diff --git a/stdlib/area/position.lua b/stdlib/area/position.lua
new file mode 100644
index 0000000..9ce0fa2
--- /dev/null
+++ b/stdlib/area/position.lua
@@ -0,0 +1,159 @@
+--- Position module
+-- @module position
+
+Position = {}
+
+require 'stdlib/core'
+
+--- Creates a position that is offset by x,y coordinate pair
+-- @param pos the position to offset
+-- @param x the amount to offset the position in the x direction
+-- @param y the amount to offset the position in the y direction
+-- @return a new position, offset by the x,y coordinates
+function Position.offset(pos, x, y)
+ fail_if_missing(pos, "missing position argument")
+ fail_if_missing(x, "missing x-coordinate value")
+ fail_if_missing(y, "missing y-coordinate value")
+
+ if #pos == 2 then
+ return { x = pos[1] + x, y = pos[2] + y }
+ else
+ return { x = pos.x + x, y = pos.y + y }
+ end
+end
+
+--- Adds 2 positions
+-- @param pos1 the first position
+-- @param pos2 the second position
+-- @return a new position
+function Position.add(pos1, pos2)
+ fail_if_missing(pos1, "missing first position argument")
+ fail_if_missing(pos2, "missing second position argument")
+
+ pos1 = Position.to_table(pos1)
+ pos2 = Position.to_table(pos2)
+ return { x = pos1.x + pos2.x, y = pos1.y + pos2.y}
+end
+
+--- Subtracts 2 positions
+-- @param pos1 the first position
+-- @param pos2 the second position
+-- @return a new position
+function Position.subtract(pos1, pos2)
+ fail_if_missing(pos1, "missing first position argument")
+ fail_if_missing(pos2, "missing second position argument")
+
+ pos1 = Position.to_table(pos1)
+ pos2 = Position.to_table(pos2)
+ return { x = pos1.x - pos2.x, y = pos1.y - pos2.y }
+end
+
+--- Translates a position in the given direction
+-- @param pos the position to translate
+-- @param direction in which direction to translate (see defines.direction)
+-- @param distance distance of the translation
+-- @return the translated position
+function Position.translate(pos, direction, distance)
+ fail_if_missing(pos, "missing position argument")
+ fail_if_missing(direction, "missing direction argument")
+ fail_if_missing(distance, "missing distance argument")
+
+ pos = Position.to_table(pos)
+
+ if direction == defines.direction.north then
+ return { x = pos.x, y = pos.y - distance }
+ elseif direction == defines.direction.northeast then
+ return { x = pos.x + distance, y = pos.y - distance }
+ elseif direction == defines.direction.east then
+ return { x = pos.x + distance, y = pos.y }
+ elseif direction == defines.direction.southeast then
+ return { x = pos.x + distance, y = pos.y + distance }
+ elseif direction == defines.direction.south then
+ return { x = pos.x, y = pos.y + distance }
+ elseif direction == defines.direction.southwest then
+ return { x = pos.x - distance, y = pos.y + distance }
+ elseif direction == defines.direction.west then
+ return { x = pos.x - distance, y = pos.y }
+ elseif direction == defines.direction.northwest then
+ return { x = pos.x - distance, y = pos.y - distance }
+ end
+end
+
+--- Expands a position to a square area
+-- @param pos the position to expand into an area
+-- @param radius half the side length of the area
+-- @return a bounding box
+function Position.expand_to_area(pos, radius)
+ fail_if_missing(pos, "missing position argument")
+ fail_if_missing(radius, "missing radius argument")
+
+ if #pos == 2 then
+ return { left_top = { x = pos[1] - radius, y = pos[2] - radius }, right_bottom = { x = pos[1] + radius, y = pos[2] + radius } }
+ end
+ return { left_top = { x = pos.x - radius, y = pos.y - radius}, right_bottom = { x = pos.x + radius, y = pos.y + radius } }
+end
+
+--- Calculates the Euclidean distance squared between two positions, useful when sqrt is not needed
+-- @param pos1 the first position
+-- @param pos2 the second position
+-- @return the square of the Euclidean distance
+function Position.distance_squared(pos1, pos2)
+ fail_if_missing(pos1, "missing first position argument")
+ fail_if_missing(pos2, "missing second position argument")
+
+ pos1 = Position.to_table(pos1)
+ pos2 = Position.to_table(pos2)
+ local axbx = pos1.x - pos2.x
+ local ayby = pos1.y - pos2.y
+ return axbx * axbx + ayby * ayby
+end
+
+--- Calculates the Euclidean distance between two positions
+-- @param pos1 the first position
+-- @param pos2 the second position
+-- @return the square of the Euclidean distance
+function Position.distance(pos1, pos2)
+ fail_if_missing(pos1, "missing first position argument")
+ fail_if_missing(pos2, "missing second position argument")
+
+ return math.sqrt(Position.distance_squared(pos1, pos2))
+end
+
+--- Calculates the manhatten distance between two positions
+-- @param pos1 the first position
+-- @param pos2 the second position
+-- @return the square of the Euclidean distance
+function Position.manhattan_distance(pos1, pos2)
+ fail_if_missing(pos1, "missing first position argument")
+ fail_if_missing(pos2, "missing second position argument")
+ pos1 = Position.to_table(pos1)
+ pos2 = Position.to_table(pos2)
+
+ return math.abs(pos2.x - pos1.x) + math.abs(pos2.y - pos1.y)
+end
+
+--- Converts a position in the array format to a position in the table format
+-- @param pos_arr the position to convert
+-- @return a converted position, { x = pos_arr[1], y = pos_arr[2] }
+function Position.to_table(pos_arr)
+ fail_if_missing(pos_arr, "missing position argument")
+
+ if #pos_arr == 2 then
+ return { x = pos_arr[1], y = pos_arr[2] }
+ end
+ return pos_arr
+end
+
+--- Converts a position to a string
+-- @param pos the position to convert
+-- @return string representation of pos
+function Position.tostring(pos)
+ fail_if_missing(pos, "missing position argument")
+ if #pos == 2 then
+ return "Position {x = " .. pos[1] .. ", y = " .. pos[2] .. "}"
+ else
+ return "Position {x = " .. pos.x .. ", y = " .. pos.y .. "}"
+ end
+end
+
+return Position
diff --git a/stdlib/core.lua b/stdlib/core.lua
new file mode 100644
index 0000000..c2e784d
--- /dev/null
+++ b/stdlib/core.lua
@@ -0,0 +1,16 @@
+--- Core module
+-- @module core
+
+--- Errors if the variable evaluates to false, with an optional msg
+-- @param var variable to evaluate
+-- @param msg (optional) message
+function fail_if_missing(var, msg)
+ if not var then
+ if msg then
+ error(msg, 3)
+ else
+ error("Missing value", 3)
+ end
+ end
+ return false
+end
diff --git a/stdlib/entity/entity.lua b/stdlib/entity/entity.lua
new file mode 100644
index 0000000..06bf5de
--- /dev/null
+++ b/stdlib/entity/entity.lua
@@ -0,0 +1,100 @@
+--- Entity module
+-- @module entity
+
+require 'stdlib/core'
+require 'stdlib/surface'
+require 'stdlib/area/area'
+
+Entity = {}
+
+--- Converts an entity and its selection_box to the area around it
+-- @param entity to convert to an area
+-- @return area that entity selection_box is valid for
+function Entity.to_selection_area(entity)
+ fail_if_missing(entity, "missing entity argument")
+
+ local pos = entity.position
+ local bb = entity.prototype.selection_box
+ return Area.offset(bb, pos)
+end
+
+--- Converts an entity and its selection_box to the area around it
+-- @param entity to convert to an area
+-- @return area that entity selection_box is valid for
+function Entity.to_collision_area(entity)
+ fail_if_missing(entity, "missing entity argument")
+
+ local pos = entity.position
+ local bb = entity.prototype.collision_box
+ return Area.offset(bb, pos)
+end
+
+--- Tests whether an entity has access to the field
+-- @param entity to test field access
+-- @param field_name that should be tested for
+-- @return true if the entity has access to the field, false if the entity threw an exception accessing the field
+function Entity.has(entity, field_name)
+ fail_if_missing(entity, "missing entity argument")
+ fail_if_missing(field_name, "missing field name argument")
+
+ local status = pcall(function() return entity[field_name]; end)
+ return status
+end
+
+--- Gets user data from the entity, stored in a mod's global data.
+--- The data will persist between loads, and will be removed for an entity when it becomes invalid
+-- @param the entity to look up data for
+-- @return the data, or nil if no data exists for the entity
+function Entity.get_data(entity)
+ fail_if_missing(entity, "missing entity argument")
+ if not global._entity_data then return nil end
+
+ local entity_name = entity.name
+ if not global._entity_data[entity_name] then return nil end
+ local entity_category = global._entity_data[entity_name]
+ for _, entity_data in pairs(entity_category) do
+ if entity_data.entity == entity then
+ return entity_data.data
+ end
+ end
+ return nil
+end
+
+--- Sets user data on the entity, stored in a mod's global data.
+--- The data will persist between loads, and will be removed for an entity when it becomes invalid
+-- @param the entity to set data for
+-- @param the data to set, or nil to delete the data associated with the entity
+-- @return the previous data associated with the entity, or nil if the entity had no previous data
+function Entity.set_data(entity, data)
+ fail_if_missing(entity, "missing entity argument")
+
+ if not global._entity_data then global._entity_data = {} end
+
+ local entity_name = entity.name
+ if not global._entity_data[entity_name] then
+ global._entity_data[entity_name] = { pos_data = {}, data = {} }
+ end
+
+ local entity_category = global._entity_data[entity_name]
+
+ for i = #entity_category, 1, -1 do
+ local entity_data = entity_category[i]
+ if not entity_data.entity.valid then
+ table.remove(entity_category, i)
+ end
+ if entity_data.entity == entity then
+ local prev = entity_data.data
+ if data then
+ entity_data.data = data
+ else
+ table.remove(entity_category, i)
+ end
+ return prev
+ end
+ end
+
+ table.insert(entity_category, { entity = entity, data = data })
+ return nil
+end
+
+return Entity
diff --git a/stdlib/entity/inventory.lua b/stdlib/entity/inventory.lua
new file mode 100644
index 0000000..71ed231
--- /dev/null
+++ b/stdlib/entity/inventory.lua
@@ -0,0 +1,28 @@
+--- Inventory module
+-- @module inventory
+
+Inventory = {}
+
+require 'stdlib/core'
+
+--- Copies an inventory contents to a destination inventory
+-- @param src source inventory to copy from
+-- @param dest destination inventory, to copy to
+-- @return an array of SimpleItemStacks of left over items that could not be copied.
+function Inventory.copy_inventory(src, dest)
+ fail_if_missing(src, "missing source inventory")
+ fail_if_missing(dest, "missing destination inventory")
+
+ local contents = src.get_contents()
+ local left_over = {}
+ for n, c in pairs(contents) do
+ local inserted = dest.insert({name=n, count=c})
+ local amt_not_inserted = c - inserted
+ if amt_not_inserted > 0 then
+ table.insert(left_over, { name = n, count = amt_not_inserted })
+ end
+ end
+ return left_over
+end
+
+return Inventory
diff --git a/stdlib/event/event.lua b/stdlib/event/event.lua
new file mode 100644
index 0000000..02d2e2b
--- /dev/null
+++ b/stdlib/event/event.lua
@@ -0,0 +1,86 @@
+--- Event module
+-- @module Event
+
+require 'stdlib/core'
+require 'stdlib/game'
+
+Event = {_registry = {}}
+
+--- Registers a function for a given event
+-- @param event or array containing events to register
+-- @param handler Function to call when event is triggered
+-- @return #Event
+function Event.register(event, handler)
+ fail_if_missing(event, "missing event argument")
+
+ if type(event) == "number" then
+ event = {event}
+ end
+
+ for _, event_id in pairs(event) do
+ fail_if_missing(event_id, "missing event id")
+ if handler == nil then
+ Event._registry[event_id] = nil
+ script.on_event(event_id, nil)
+ else
+ if not Event._registry[event_id] then
+ Event._registry[event_id] = {}
+ script.on_event(event_id, Event.dispatch)
+ end
+ table.insert(Event._registry[event_id], handler)
+ end
+ end
+ return Event
+end
+
+--- Calls the registerd handlers
+-- @param event LuaEvent as created by game.raise_event
+function Event.dispatch(event)
+ fail_if_missing(event, "missing event argument")
+
+ if Event._registry[event.name] then
+ for _, handler in pairs(Event._registry[event.name]) do
+ local metatbl = { __index = function(tbl, key) if key == '_handler' then return handler else return rawget(tbl, key) end end }
+ setmetatable(event, metatbl)
+ local success, err = pcall(handler, event)
+ if not success then
+ Game.print_all(err)
+ return
+ end
+ if err then
+ return
+ end
+ end
+ end
+end
+
+--- Removes the handler from the event
+-- @param event event or array containing events to remove the handler
+-- @param handler to remove
+-- @return #Event
+function Event.remove(event, handler)
+ fail_if_missing(event, "missing event argument")
+ fail_if_missing(handler, "missing handler argument")
+
+ if type(event) == "number" then
+ event = {event}
+ end
+
+ for _, event_id in pairs(event) do
+ fail_if_missing(event_id, "missing event id")
+ if Event._registry[event_id] then
+ for i=#Event._registry[event_id], 1, -1 do
+ if Event._registry[event_id][i] == handler then
+ table.remove(Event._registry[event_id], i)
+ end
+ end
+ if #Event._registry[event_id] == 0 then
+ Event._registry[event_id] = nil
+ script.on_event(event_id, nil)
+ end
+ end
+ end
+ return Event
+end
+
+return Event
diff --git a/stdlib/game.lua b/stdlib/game.lua
new file mode 100644
index 0000000..3a1bf06
--- /dev/null
+++ b/stdlib/game.lua
@@ -0,0 +1,58 @@
+--- Game module
+-- @module game
+
+Game = {}
+Game.VALID_FILTER = function(v)
+ return v.valid
+end
+
+--- Messages all players currently connected to the game
+-- @param msg message to send to players
+-- @param condition (optional) optional condition to be true for the player to be messaged
+-- @return the number of players who received the message
+function Game.print_all(msg, condition)
+ local num = 0
+ for _, player in ipairs(game.players) do
+ if player.valid and player.connected then
+ if condition == nil or select(2, pcall(condition, player)) then
+ player.print(msg)
+ num = num + 1
+ end
+ end
+ end
+ return num
+end
+
+--- Messages all players with the given force connected to the game
+-- @param force (may be force name string, or force object) the players with the given force to message
+-- @param msg message to send to players
+-- @return the number of players who received the message
+function Game.print_force(force, msg)
+ local force_name
+ if type(force) == "string" then
+ force_name = force
+ else
+ force_name = force.name
+ end
+ return Game.print_all(msg, function(player)
+ return player.force.name == force_name
+ end)
+end
+
+--- Messages all players with the given surface connected to the game
+-- @param surface the players with the given surface to message
+-- @param msg message to send to players
+-- @return the number of players who received the message
+function Game.print_surface(surface, msg)
+ local surface_name
+ if type(surface) == "string" then
+ surface_name = surface
+ else
+ surface_name = surface.name
+ end
+ return Game.print_all(msg, function(player)
+ return player.surface.name == surface_name
+ end)
+end
+
+return Game
diff --git a/stdlib/log/logger.lua b/stdlib/log/logger.lua
new file mode 100644
index 0000000..b575aab
--- /dev/null
+++ b/stdlib/log/logger.lua
@@ -0,0 +1,59 @@
+--- Logger module
+-- @module log
+
+Logger = {}
+
+--- Creates a new logger object
+-- @param mod_name [required] the name of the mod to create the logger for
+-- @param log_name (optional, default: 'main') the name of the logger
+-- @param debug_mode (optional, default: false) toggles the debug state of logger.
+-- In debug mode, the logger writes immediately. Otherwise it buffers lines.
+-- Logger flushes after 60 seconds has elapsed since the last message.
+-- @return the logger instance
+function Logger.new(mod_name, log_name, debug_mode)
+ if not mod_name then
+ error("Logger must be given a mod_name as the first argument")
+ end
+ if not log_name then
+ log_name = "main"
+ end
+ local Logger = {mod_name = mod_name, log_name = log_name, debug_mode = debug_mode, buffer = {}, last_written = 0, ever_written = false}
+
+ --- Logs a message
+ -- @param msg a string, the message to log
+ -- @return true if the message was written, false if it was queued for a later write
+ function Logger.log(msg)
+ if _G["game"] then
+ local time_s = math.floor(game.tick/60)
+ local time_minutes = math.floor(time_s/60)
+ local time_hours = math.floor(time_minutes/60)
+ table.insert(Logger.buffer, string.format("%02d:%02d:%02d: %s\n", time_hours, time_minutes % 60, time_s % 60, msg))
+
+ -- write the log every minute
+ if (Logger.debug_mode or (game.tick - Logger.last_written) > 216000) then
+ return Logger.write()
+ end
+ else
+ table.insert(Logger.buffer, string.format("00:00:00: %s\n", msg))
+ end
+ return false
+ end
+
+ --- Writes out all buffered messages immediately
+ -- @return true if there any messages were written, false if not
+ function Logger.write()
+ if _G["game"] then
+ Logger.last_written = game.tick
+ local file_name = "logs/" .. Logger.mod_name .. "/" .. Logger.log_name .. ".log"
+ game.write_file(file_name, table.concat(Logger.buffer), Logger.ever_written)
+ Logger.buffer = {}
+ Logger.ever_written = true
+ return true
+ end
+ return false
+ end
+
+ return Logger
+end
+
+return Logger
diff --git a/stdlib/string.lua b/stdlib/string.lua
new file mode 100644
index 0000000..0992428
--- /dev/null
+++ b/stdlib/string.lua
@@ -0,0 +1,25 @@
+--- String module
+-- @module string
+
+--- Returns a copy of the string with any leading or trailing whitespace from the string removed.
+-- @param s the string to remove leading or trailing whitespace from
+-- @return a copy of the string without leading or trailing whitespace
+function string.trim(s)
+ return (s:gsub("^%s*(.-)%s*$", "%1"))
+end
+
+--- Tests if a string starts with a given substring
+-- @param s the string to check for the start substring
+-- @param start the substring to test for
+-- @return true if the start substring was found in the string
+function string.starts_with(s, start)
+ return string.find(s, start, 1, true) == 1
+end
+
+--- Tests if a string ends with a given substring
+-- @param s the string to check for the end substring
+-- @param ends the substring to test for
+-- @return true if the end substring was found in the string
+function string.ends_with(s, ends)
+ return #s >= #ends and string.find(s, ends, #s - #ends + 1, true) and true or false
+end
diff --git a/stdlib/surface.lua b/stdlib/surface.lua
new file mode 100644
index 0000000..6cd3a3e
--- /dev/null
+++ b/stdlib/surface.lua
@@ -0,0 +1,79 @@
+--- Surface module
+-- @module surface
+
+require 'stdlib/core'
+
+Surface = {}
+
+--- Flexible, safe lookup function for surfaces.
+-- May be given a string, the name of a surface, or may be given a table with surface names,
+-- may be given the a surface object, or may be given a table of surface objects, or
+-- may be given nil.
+-- Returns an array of surface objects of all valid, existing surfaces
+-- If a surface does not exist for the surface, it is ignored, if no surfaces
+-- are given, an empty array is returned.
+-- @param surface to lookup
+-- @return the list of surfaces looked up
+function Surface.lookup(surface)
+ if not surface then
+ return {}
+ end
+ if type(surface) == 'string' then
+ if game.surfaces[surface] then
+ return {game.surfaces[surface]}
+ end
+ return {}
+ end
+ local result = {}
+ for _, surface_item in pairs(surface) do
+ if type(surface_item) == 'string' then
+ if game.surfaces[surface_item] then
+ table.insert(result, game.surfaces[surface_item])
+ end
+ elseif type(surface_item) == 'table' and surface_item['__self'] then
+ table.insert(result, surface_item)
+ end
+ end
+ return result
+end
+
+--- Given search criteria, a table that contains a name or type of entity to search for,
+-- and optionally surface or force, searches all loaded chunks for the entities that
+-- match the critera.
+--
Ex:
+-- Surface.final_all_entities({ type = 'unit', surface = 'nauvis' })
+-- Will return all units on the nauvis surface.
+-- @param search_criteria a table of criteria. Must contain either the name or type or force of an entity. May contain surface or force.
+-- @return an array of all entities that matched the criteria
+function Surface.find_all_entities(search_criteria)
+ fail_if_missing(search_criteria, "missing search_criteria argument")
+ if search_criteria.name == nil and search_criteria.type == nil and search_criteria.force == nil then
+ error("Missing search criteria field: name or type or force of entity", 2)
+ end
+
+ local surface_list = Surface.lookup(search_criteria.surface)
+ if search_criteria.surface == nil then
+ surface_list = game.surfaces
+ end
+
+ local result = {}
+
+ for _, surface in pairs(surface_list) do
+ for chunk in surface.get_chunks() do
+ local entities = surface.find_entities_filtered(
+ {
+ area = { left_top = { x = chunk.x * 32, y = chunk.y * 32 }, right_bottom = {x = (chunk.x + 1) * 32, y = (chunk.y + 1) * 32}},
+ name = search_criteria.name,
+ type = search_criteria.type,
+ force = search_criteria.force
+ })
+ for _, entity in ipairs(entities) do
+ table.insert(result, entity)
+ end
+ end
+ end
+
+ return result
+end
+
+return Surface
diff --git a/stdlib/table.lua b/stdlib/table.lua
new file mode 100644
index 0000000..6bb8b4d
--- /dev/null
+++ b/stdlib/table.lua
@@ -0,0 +1,67 @@
+--- Table module
+-- @module table
+
+--- Given a mapping function, creates a transformed copy of the table
+--- by calling the function for each element in the table, and using
+--- the result as the new value for the key.
+---
Ex:
+--- table.map({ 1, 2, 3, 4, 5}, function(v) return v * 10 end)
+--- produces: { 10, 20, 30, 40, 50 }
+-- @param tbl to be mapped to the transform
+-- @param func to transform values
+-- @result a new table containing the keys and mapped values
+function table.map(tbl, func)
+ local newtbl = {}
+ for i, v in pairs(tbl) do
+ newtbl[i] = func(v)
+ end
+ return newtbl
+end
+
+--- Given a filter function, creates a filtered copy of the table
+--- by calling the function for each element in the table, and
+--- filtering out any key-value pairs for non-true results
+--- Ex:
+--- table.filter({ 1, 2, 3, 4, 5}, function(v) return v % 2 == 0 end)
+--- produces: { 2, 4 }
+-- @param tbl to be filtered
+-- @param func to filter values
+-- @return a new table containing the filtered key-value pairs
+function table.filter(tbl, func)
+ local newtbl = {}
+ local insert = #tbl > 0
+ for k, v in pairs(tbl) do
+ if func(v) then
+ if insert then table.insert(newtbl, v)
+ else newtbl[k] = v end
+ end
+ end
+ return newtbl
+end
+
+--- Given a function, apply it to each element in the table
+-- @param tbl to be iterated
+-- @param func to apply to values
+-- @return the given table
+function table.each(tbl, func)
+ for _, v in pairs(tbl) do
+ func(v)
+ end
+ return tbl
+end
+
+--- Given an array, returns the first element or nil if no element exists
+-- @param tbl the array
+-- @return the first element
+function table.first(tbl)
+ return tbl[1]
+end
+
+--- Given an array, returns the last element or nil if no elements exist
+-- @param tbl the array
+-- @return the last element
+function table.last(tbl)
+ local size = #tbl
+ if size == 0 then return nil end
+ return tbl[size]
+end