Events

Version 1.1.77 / Runtime Docs / Events <>

Events are delivered to mods in response to certain actions happening in the game. A mod can register a callback for a given event using the LuaBootstrap::on_event function. Events receive a parameter that is a table containing fields name and tick specifying the event ID (see defines.events) and the tick the event happened. This table may also contain additional fields that depend on what event it is. Additionally, some events can use filters to provide improved performance when a mod doesn't need or want to react to everything a given event may be triggered by.

CustomInputEvent	Called when a CustomInput is activated.
on_ai_command_completed	Called when a unit/group completes a command.
on_area_cloned	Called when an area of the map is cloned.
on_biter_base_built	Called when a biter migration builds a base.
on_brush_cloned	Called when a set of positions on the map is cloned.
on_build_base_arrived	Called when a defines.command.build_base command reaches its destination, and before building starts.
on_built_entity	Called when player builds something.
on_cancelled_deconstruction	Called when the deconstruction of an entity is canceled.
on_cancelled_upgrade	Called when the upgrade of an entity is canceled.
on_character_corpse_expired	Called when a character corpse expires due to timeout or all of the items being removed from it.
on_chart_tag_added	Called when a chart tag is created.
on_chart_tag_modified	Called when a chart tag is modified by a player.
on_chart_tag_removed	Called just before a chart tag is deleted.
on_chunk_charted	Called when a chunk is charted or re-charted.
on_chunk_deleted	Called when one or more chunks are deleted using LuaSurface::delete_chunk.
on_chunk_generated	Called when a chunk is generated.
on_combat_robot_expired	Called when a combat robot expires through a lack of energy, or timeout.
on_console_chat	Called when a message is sent to the in-game console, either by a player or through the server interface.
on_console_command	Called when someone enters a command-like message regardless of it being a valid command.
on_cutscene_cancelled	Called when a cutscene is cancelled by the player or by script.
on_cutscene_waypoint_reached	Called when a cutscene is playing, each time it reaches a waypoint in that cutscene.
on_difficulty_settings_changed	Called when the map difficulty settings are changed.
on_entity_cloned	Called when an entity is cloned.
on_entity_damaged	Called when an entity is damaged.
on_entity_destroyed	Called after an entity is destroyed that has been registered with LuaBootstrap::register_on_entity_destroyed.
on_entity_died	Called when an entity dies.
on_entity_logistic_slot_changed	Called when one of an entity's personal logistic slots changes.
on_entity_renamed	Called after an entity has been renamed either by the player or through script.
on_entity_settings_pasted	Called after entity copy-paste is done.
on_entity_spawned	Called when an entity is spawned by a EnemySpawner
on_equipment_inserted	Called after equipment is inserted into an equipment grid.
on_equipment_removed	Called after equipment is removed from an equipment grid.
on_force_cease_fire_changed	Called when the a forces cease fire values change.
on_force_created	Called when a new force is created using `game.create_force()`
on_force_friends_changed	Called when the a forces friends change.
on_force_reset	Called when LuaForce::reset is finished.
on_forces_merged	Called after two forces have been merged using `game.merge_forces()`.
on_forces_merging	Called when two forces are about to be merged using `game.merge_forces()`.
on_game_created_from_scenario	Called when a game is created from a scenario.
on_gui_checked_state_changed	Called when LuaGuiElement checked state is changed (related to checkboxes and radio buttons).
on_gui_click	Called when LuaGuiElement is clicked.
on_gui_closed	Called when the player closes the GUI they have open.
on_gui_confirmed	Called when a LuaGuiElement is confirmed, for example by pressing Enter in a textfield.
on_gui_elem_changed	Called when LuaGuiElement element value is changed (related to choose element buttons).
on_gui_location_changed	Called when LuaGuiElement element location is changed (related to frames in `player.gui.screen`).
on_gui_opened	Called when the player opens a GUI.
on_gui_selected_tab_changed	Called when LuaGuiElement selected tab is changed (related to tabbed-panes).
on_gui_selection_state_changed	Called when LuaGuiElement selection state is changed (related to drop-downs and listboxes).
on_gui_switch_state_changed	Called when LuaGuiElement switch state is changed (related to switches).
on_gui_text_changed	Called when LuaGuiElement text is changed by the player.
on_gui_value_changed	Called when LuaGuiElement slider value is changed (related to the slider element).
on_land_mine_armed	Called when a land mine is armed.
on_lua_shortcut	Called when a custom Lua shortcut is pressed.
on_marked_for_deconstruction	Called when an entity is marked for deconstruction with the Deconstruction planner or via script.
on_marked_for_upgrade	Called when an entity is marked for upgrade with the Upgrade planner or via script.
on_market_item_purchased	Called after a player purchases some offer from a `market` entity.
on_mod_item_opened	Called when the player uses the 'Open item GUI' control on an item defined with the 'mod-openable' flag
on_permission_group_added	Called directly after a permission group is added.
on_permission_group_deleted	Called directly after a permission group is deleted.
on_permission_group_edited	Called directly after a permission group is edited in some way.
on_permission_string_imported	Called directly after a permission string is imported.
on_picked_up_item	Called when a player picks up an item.
on_player_alt_reverse_selected_area	Called after a player alt-reverse-selects an area with a selection-tool item.
on_player_alt_selected_area	Called after a player alt-selects an area with a selection-tool item.
on_player_ammo_inventory_changed	Called after a players ammo inventory changed in some way.
on_player_armor_inventory_changed	Called after a players armor inventory changed in some way.
on_player_banned	Called when a player is banned.
on_player_built_tile	Called after a player builds tiles.
on_player_cancelled_crafting	Called when a player cancels crafting.
on_player_changed_force	Called after a player changes forces.
on_player_changed_position	Called when the tile position a player is located at changes.
on_player_changed_surface	Called after a player changes surfaces.
on_player_cheat_mode_disabled	Called when cheat mode is disabled on a player.
on_player_cheat_mode_enabled	Called when cheat mode is enabled on a player.
on_player_clicked_gps_tag	Called when a player clicks a gps tag
on_player_configured_blueprint	Called when a player clicks the "confirm" button in the configure Blueprint GUI.
on_player_configured_spider_remote	Called when a player configures spidertron remote to be connected with a given spidertron
on_player_crafted_item	Called when the player finishes crafting an item.
on_player_created	Called after the player was created.
on_player_cursor_stack_changed	Called after a players cursorstack changed in some way.
on_player_deconstructed_area	Called when a player selects an area with a deconstruction planner.
on_player_demoted	Called when a player is demoted.
on_player_died	Called after a player dies.
on_player_display_resolution_changed	Called when the display resolution changes for a given player.
on_player_display_scale_changed	Called when the display scale changes for a given player.
on_player_driving_changed_state	Called when the player's driving state has changed, meaning a player has either entered or left a vehicle.
on_player_dropped_item	Called when a player drops an item on the ground.
on_player_fast_transferred	Called when a player fast-transfers something to or from an entity.
on_player_flushed_fluid	Called after player flushed fluid
on_player_gun_inventory_changed	Called after a players gun inventory changed in some way.
on_player_joined_game	Called after a player joins the game.
on_player_kicked	Called when a player is kicked.
on_player_left_game	Called after a player leaves the game.
on_player_main_inventory_changed	Called after a players main inventory changed in some way.
on_player_mined_entity	Called after the results of an entity being mined are collected just before the entity is destroyed.
on_player_mined_item	Called when the player mines something.
on_player_mined_tile	Called after a player mines tiles.
on_player_muted	Called when a player is muted.
on_player_pipette	Called when a player invokes the "smart pipette" over an entity.
on_player_placed_equipment	Called after the player puts equipment in an equipment grid
on_player_promoted	Called when a player is promoted.
on_player_removed	Called when a player is removed (deleted) from the game.
on_player_removed_equipment	Called after the player removes equipment from an equipment grid
on_player_repaired_entity	Called when a player repairs an entity.
on_player_respawned	Called after a player respawns.
on_player_reverse_selected_area	Called after a player reverse-selects an area with a selection-tool item.
on_player_rotated_entity	Called when the player rotates an entity.
on_player_selected_area	Called after a player selects an area with a selection-tool item.
on_player_set_quick_bar_slot	Called when a player sets a quickbar slot to anything (new value, or set to empty).
on_player_setup_blueprint	Called when a player selects an area with a blueprint.
on_player_toggled_alt_mode	Called when a player toggles alt mode, also known as "show entity info".
on_player_toggled_map_editor	Called when a player toggles the map editor on or off.
on_player_trash_inventory_changed	Called after a players trash inventory changed in some way.
on_player_unbanned	Called when a player is un-banned.
on_player_unmuted	Called when a player is unmuted.
on_player_used_capsule	Called when a player uses a capsule that results in some game action.
on_player_used_spider_remote	Called when a player uses spidertron remote to send a spidertron to a given position
on_post_entity_died	Called after an entity dies.
on_pre_build	Called when players uses an item to build something.
on_pre_chunk_deleted	Called before one or more chunks are deleted using LuaSurface::delete_chunk.
on_pre_entity_settings_pasted	Called before entity copy-paste is done.
on_pre_ghost_deconstructed	Called before a ghost entity is destroyed as a result of being marked for deconstruction.
on_pre_ghost_upgraded	Called before a ghost entity is upgraded.
on_pre_permission_group_deleted	Called directly before a permission group is deleted.
on_pre_permission_string_imported	Called directly before a permission string is imported.
on_pre_player_crafted_item	Called when a player queues something to be crafted.
on_pre_player_died	Called before a players dies.
on_pre_player_left_game	Called before a player leaves the game.
on_pre_player_mined_item	Called when the player completes a mining action, but before the entity is potentially removed from the map.
on_pre_player_removed	Called before a player is removed (deleted) from the game.
on_pre_player_toggled_map_editor	Called before a player toggles the map editor on or off.
on_pre_robot_exploded_cliff	Called directly before a robot explodes cliffs.
on_pre_script_inventory_resized	Called just before a script inventory is resized.
on_pre_surface_cleared	Called just before a surface is cleared (all entities removed and all chunks deleted).
on_pre_surface_deleted	Called just before a surface is deleted.
on_research_cancelled	Called when research is cancelled.
on_research_finished	Called when a research finishes.
on_research_reversed	Called when a research is reversed (unresearched).
on_research_started	Called when a technology research starts.
on_resource_depleted	Called when a resource entity reaches 0 or its minimum yield for infinite resources.
on_robot_built_entity	Called when a construction robot builds an entity.
on_robot_built_tile	Called after a robot builds tiles.
on_robot_exploded_cliff	Called directly after a robot explodes cliffs.
on_robot_mined	Called when a robot mines an entity.
on_robot_mined_entity	Called after the results of an entity being mined are collected just before the entity is destroyed.
on_robot_mined_tile	Called after a robot mines tiles.
on_robot_pre_mined	Called before a robot mines an entity.
on_rocket_launch_ordered	Called when a rocket silo is ordered to be launched.
on_rocket_launched	Called when the rocket is launched.
on_runtime_mod_setting_changed	Called when a runtime mod setting is changed by a player.
on_script_inventory_resized	Called just after a script inventory is resized.
on_script_path_request_finished	Called when a LuaSurface::request_path call completes.
on_script_trigger_effect	Called when a script trigger effect is triggered.
on_sector_scanned	Called when an entity of type `radar` finishes scanning a sector.
on_selected_entity_changed	Called after the selected entity changes for a given player.
on_spider_command_completed	Called when a spider finishes moving to its autopilot position.
on_string_translated	Called when a translation request generated through LuaPlayer::request_translation or LuaPlayer::request_translations has been completed.
on_surface_cleared	Called just after a surface is cleared (all entities removed and all chunks deleted).
on_surface_created	Called when a surface is created.
on_surface_deleted	Called after a surface is deleted.
on_surface_imported	Called after a surface is imported.
on_surface_renamed	Called when a surface is renamed.
on_technology_effects_reset	Called when LuaForce::reset_technology_effects is finished.
on_tick	It is fired once every tick.
on_train_changed_state	Called when a train changes state (started to stopped and vice versa)
on_train_created	Called when a new train is created either through disconnecting/connecting an existing one or building a new one.
on_train_schedule_changed	Called when a trains schedule is changed either by the player or through script.
on_trigger_created_entity	Called when an entity with a trigger prototype (such as capsules) create an entity AND that trigger prototype defined `trigger_created_entity="true"`.
on_trigger_fired_artillery	Called when an entity with a trigger prototype (such as capsules) fire an artillery projectile AND that trigger prototype defined `trigger_fired_artillery="true"`.
on_unit_added_to_group	Called when a unit is added to a unit group.
on_unit_group_created	Called when a new unit group is created, before any members are added to it.
on_unit_group_finished_gathering	Called when a unit group finishes gathering and starts executing its command.
on_unit_removed_from_group	Called when a unit is removed from a unit group.
on_worker_robot_expired	Called when a worker (construction or logistic) robot expires through a lack of energy.
script_raised_built	A static event mods can use to tell other mods they built something by script.
script_raised_destroy	A static event mods can use to tell other mods they destroyed something by script.
script_raised_revive	A static event mods can use to tell other mods they revived something by script.
script_raised_set_tiles	A static event mods can use to tell other mods they changed tiles on a surface by script.
script_raised_teleported	A static event mods can use to tell other mods they teleported something by script.

CustomInputEvent

Called when a CustomInput is activated.

player_index	:: uint	The player that activated the custom input.
The player that activated the custom input.
input_name	:: string	The prototype name of the custom input that was activated.
The prototype name of the custom input that was activated.
cursor_position	:: MapPosition	The mouse cursor position when the custom input was activated.
The mouse cursor position when the custom input was activated.
selected_prototype	:: SelectedPrototypeData?	Information about the prototype that is selected when the custom input is used. Needs to be enabled on the custom input's prototype. `nil` if none is selected.
Information about the prototype that is selected when the custom input is used. Needs to be enabled on the custom input's prototype. `nil` if none is selected.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_ai_command_completed

Called when a unit/group completes a command.

unit_number	:: uint	unit_number/group_number of the unit/group which just completed a command.
unit_number/group_number of the unit/group which just completed a command.
result	:: defines.behavior_result
was_distracted	:: boolean	Was this command generated by a distraction.
Was this command generated by a distraction.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_area_cloned

Called when an area of the map is cloned.

source_surface	:: LuaSurface
source_area	:: BoundingBox
destination_surface	:: LuaSurface
destination_area	:: BoundingBox
destination_force	:: LuaForce?
clone_tiles	:: boolean
clone_entities	:: boolean
clone_decoratives	:: boolean
clear_destination_entities	:: boolean
clear_destination_decoratives	:: boolean
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_biter_base_built

Called when a biter migration builds a base.

entity	:: LuaEntity	The entity that was built.
The entity that was built.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

This will be called multiple times for each migration, once for every biter that is sacrificed to build part of the new base.

on_brush_cloned

Called when a set of positions on the map is cloned.

source_offset	:: TilePosition
destination_offset	:: TilePosition
source_surface	:: LuaSurface
source_positions	:: array[TilePosition]
destination_surface	:: LuaSurface
destination_force	:: LuaForce?
clone_tiles	:: boolean
clone_entities	:: boolean
clone_decoratives	:: boolean
clear_destination_entities	:: boolean
clear_destination_decoratives	:: boolean
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_build_base_arrived

Called when a defines.command.build_base command reaches its destination, and before building starts.

unit	:: LuaEntity?	The unit the command was assigned to.
The unit the command was assigned to.
group	:: LuaUnitGroup?	The unit group the command was assigned to.
The unit group the command was assigned to.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_built_entity

Called when player builds something. Can be filtered using LuaPlayerBuiltEntityEventFilter.

created_entity	:: LuaEntity
player_index	:: uint
stack	:: LuaItemStack
item	:: LuaItemPrototype?	The item prototype used to build the entity. Note this won't exist in some situations (built from blueprint, undo, etc).
The item prototype used to build the entity. Note this won't exist in some situations (built from blueprint, undo, etc).
tags	:: Tags?	The tags associated with this entity if any.
The tags associated with this entity if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_cancelled_deconstruction

Called when the deconstruction of an entity is canceled. Can be filtered using LuaEntityDeconstructionCancelledEventFilter.

entity	:: LuaEntity
player_index	:: uint?
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_cancelled_upgrade

Called when the upgrade of an entity is canceled. Can be filtered using LuaUpgradeCancelledEventFilter.

entity	:: LuaEntity
player_index	:: uint?
target	:: LuaEntityPrototype
direction	:: defines.direction?
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_character_corpse_expired

Called when a character corpse expires due to timeout or all of the items being removed from it.

corpse	:: LuaEntity	The corpse.
The corpse.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

this is not called if the corpse is mined. See defines.events.on_pre_player_mined_item to detect that.

on_chart_tag_added

Called when a chart tag is created.

tag	:: LuaCustomChartTag
force	:: LuaForce
player_index	:: uint?
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_chart_tag_modified

Called when a chart tag is modified by a player.

tag	:: LuaCustomChartTag
player_index	:: uint?
force	:: LuaForce
old_text	:: string
old_icon	:: SignalID?
old_player	:: uint?
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_chart_tag_removed

Called just before a chart tag is deleted.

tag	:: LuaCustomChartTag
force	:: LuaForce
player_index	:: uint?
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_chunk_charted

Called when a chunk is charted or re-charted.

surface_index	:: uint
position	:: ChunkPosition
area	:: BoundingBox	Area of the chunk.
Area of the chunk.
force	:: LuaForce
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_chunk_deleted

Called when one or more chunks are deleted using LuaSurface::delete_chunk.

surface_index	:: uint
positions	:: array[ChunkPosition]	The chunks deleted.
The chunks deleted.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_chunk_generated

Called when a chunk is generated.

area	:: BoundingBox	Area of the chunk.
Area of the chunk.
position	:: ChunkPosition	Position of the chunk.
Position of the chunk.
surface	:: LuaSurface	The surface the chunk is on.
The surface the chunk is on.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_combat_robot_expired

Called when a combat robot expires through a lack of energy, or timeout.

robot	:: LuaEntity
owner	:: LuaEntity?	The entity that owns the robot if any.
The entity that owns the robot if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_console_chat

Called when a message is sent to the in-game console, either by a player or through the server interface.

player_index	:: uint?	The player doing the chatting, if any.
The player doing the chatting, if any.
message	:: string	The chat message that was sent.
The chat message that was sent.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

This event only fires for plain messages, not for any commands (including /shout or /whisper).

on_console_command

Called when someone enters a command-like message regardless of it being a valid command.

player_index	:: uint?	The player if any.
The player if any.
command	:: string	The command as typed without the preceding forward slash ('/').
The command as typed without the preceding forward slash ('/').
parameters	:: string	The parameters provided if any.
The parameters provided if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_cutscene_cancelled

Called when a cutscene is cancelled by the player or by script.

player_index	:: uint	The player the cutscene was shown to.
The player the cutscene was shown to.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_cutscene_waypoint_reached

Called when a cutscene is playing, each time it reaches a waypoint in that cutscene.

This refers to an index in the table previously passed to set_controller which started the cutscene.

player_index	:: uint	The player index of the player viewing the cutscene.
The player index of the player viewing the cutscene.
waypoint_index	:: uint	The index of the waypoint we just completed.
The index of the waypoint we just completed.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

Due to implementation omission, waypoint_index is 0-based.

on_difficulty_settings_changed

Called when the map difficulty settings are changed.

old_recipe_difficulty	:: uint
old_technology_difficulty	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

It's not guaranteed that both settings are changed - just that at least one has been changed.

on_entity_cloned

Called when an entity is cloned. Can be filtered for the source entity using LuaEntityClonedEventFilter.

source	:: LuaEntity
destination	:: LuaEntity
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_entity_damaged

Called when an entity is damaged. Can be filtered using LuaEntityDamagedEventFilter.

entity	:: LuaEntity
damage_type	:: LuaDamagePrototype
original_damage_amount	:: float	The damage amount before resistances.
The damage amount before resistances.
final_damage_amount	:: float	The damage amount after resistances.
The damage amount after resistances.
final_health	:: float	The health of the entity after the damage was applied.
The health of the entity after the damage was applied.
cause	:: LuaEntity?	The entity that did the attacking if available.
The entity that did the attacking if available.
force	:: LuaForce?	The force that did the attacking if any.
The force that did the attacking if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

This is not called when an entities health is set directly by another mod.

on_entity_destroyed

Called after an entity is destroyed that has been registered with LuaBootstrap::register_on_entity_destroyed.

registration_number	:: uint64	The number returned by register_on_entity_destroyed to uniquely identify this entity during this event.
The number returned by register_on_entity_destroyed to uniquely identify this entity during this event.
unit_number	:: uint?	The LuaEntity::unit_number of the destroyed entity, if it had one.
The LuaEntity::unit_number of the destroyed entity, if it had one.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

Depending on when a given entity is destroyed, this event will be fired at the end of the current tick or at the end of the next tick.

on_entity_died

Called when an entity dies. Can be filtered using LuaEntityDiedEventFilter.

entity	:: LuaEntity	The entity that died.
The entity that died.
cause	:: LuaEntity?	The entity that did the killing if available.
The entity that did the killing if available.
loot	:: LuaInventory	The loot generated by this entity if any.
The loot generated by this entity if any.
force	:: LuaForce?	The force that did the killing if any.
The force that did the killing if any.
damage_type	:: LuaDamagePrototype?	The damage type if any.
The damage type if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_entity_logistic_slot_changed

Called when one of an entity's personal logistic slots changes.

player_index	:: uint?	The player who changed the slot, or `nil` if changed by script.
The player who changed the slot, or `nil` if changed by script.
entity	:: LuaEntity	The entity for whom a logistic slot was changed.
The entity for whom a logistic slot was changed.
slot_index	:: uint	The slot index that was changed.
The slot index that was changed.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

"Personal logistic slot" refers to a character or vehicle's personal request / auto-trash slots, not the request slots on logistic chests.

on_entity_renamed

Called after an entity has been renamed either by the player or through script.

player_index	:: uint?	If by_script is true this will not be included.
If by_script is true this will not be included.
by_script	:: boolean
entity	:: LuaEntity
old_name	:: string
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_entity_settings_pasted

Called after entity copy-paste is done.

player_index	:: uint
source	:: LuaEntity	The source entity settings were copied from.
The source entity settings were copied from.
destination	:: LuaEntity	The destination entity settings were copied to.
The destination entity settings were copied to.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_entity_spawned

Called when an entity is spawned by a EnemySpawner

spawner	:: LuaEntity
entity	:: LuaEntity
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_equipment_inserted

Called after equipment is inserted into an equipment grid.

grid	:: LuaEquipmentGrid	The equipment grid inserted into.
The equipment grid inserted into.
equipment	:: LuaEquipment	The equipment inserted.
The equipment inserted.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_equipment_removed

Called after equipment is removed from an equipment grid.

grid	:: LuaEquipmentGrid	The equipment grid removed from.
The equipment grid removed from.
equipment	:: string	The equipment removed.
The equipment removed.
count	:: uint	The count of equipment removed.
The count of equipment removed.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_force_cease_fire_changed

Called when the a forces cease fire values change.

force	:: LuaForce	The force who's cease fire changed.
The force who's cease fire changed.
other_force	:: LuaForce	Which force was added or removed.
Which force was added or removed.
added	:: boolean	If the other force was added or removed.
If the other force was added or removed.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_force_created

Called when a new force is created using game.create_force()

force	:: LuaForce	The newly created force.
The newly created force.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

This is not called when the default forces ('player', 'enemy', 'neutral') are created as they will always exist.

on_force_friends_changed

Called when the a forces friends change.

force	:: LuaForce	The force who's friends changed.
The force who's friends changed.
other_force	:: LuaForce	Which force was added or removed.
Which force was added or removed.
added	:: boolean	If the other force was added or removed.
If the other force was added or removed.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_force_reset

Called when LuaForce::reset is finished.

force	:: LuaForce
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_forces_merged

Called after two forces have been merged using game.merge_forces().

source_name	:: string	The force destroyed.
The force destroyed.
source_index	:: uint	The index of the destroyed force.
The index of the destroyed force.
destination	:: LuaForce	The force entities where reassigned to.
The force entities where reassigned to.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

The source force is invalidated before this event is called and the name can be re-used in this event if desired.

on_forces_merging

Called when two forces are about to be merged using game.merge_forces().

source	:: LuaForce	The force to be destroyed
The force to be destroyed
destination	:: LuaForce	The force to reassign entities to.
The force to reassign entities to.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_game_created_from_scenario

Called when a game is created from a scenario. This is fired for every mod, even when the scenario's save data already includes it. In those cases however, LuaBootstrap::on_init is not fired.

name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

This event is not fired when the scenario is loaded via the map editor.

on_gui_checked_state_changed

Called when LuaGuiElement checked state is changed (related to checkboxes and radio buttons).

element	:: LuaGuiElement	The element whose checked state changed.
The element whose checked state changed.
player_index	:: uint	The player who did the change.
The player who did the change.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_gui_click

Called when LuaGuiElement is clicked.

element	:: LuaGuiElement	The clicked element.
The clicked element.
player_index	:: uint	The player who did the clicking.
The player who did the clicking.
button	:: defines.mouse_button_type	The mouse button used if any.
The mouse button used if any.
alt	:: boolean	If alt was pressed.
If alt was pressed.
control	:: boolean	If control was pressed.
If control was pressed.
shift	:: boolean	If shift was pressed.
If shift was pressed.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_gui_closed

Called when the player closes the GUI they have open.

This can only be raised when the GUI's player controller is still valid. If a GUI is thus closed due to the player disconnecting, dying, or becoming a spectator in other ways, it won't cause this event to be raised.

player_index	:: uint	The player.
The player.
gui_type	:: defines.gui_type	The GUI type that was open.
The GUI type that was open.
entity	:: LuaEntity?	The entity that was open
The entity that was open
item	:: LuaItemStack?	The item that was open
The item that was open
equipment	:: LuaEquipment?	The equipment that was open
The equipment that was open
other_player	:: LuaPlayer?	The other player that was open
The other player that was open
element	:: LuaGuiElement?	The custom GUI element that was open
The custom GUI element that was open
technology	:: LuaTechnology?	The technology that was automatically selected when opening the research GUI
The technology that was automatically selected when opening the research GUI
tile_position	:: TilePosition?	The tile position that was open
The tile position that was open
inventory	:: LuaInventory?	The script inventory that was open
The script inventory that was open
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

It's not advised to open any other GUI during this event because if this is run as a request to open a different GUI the game will force close the new opened GUI without notice to ensure the original requested GUI is opened.

on_gui_confirmed

Called when a LuaGuiElement is confirmed, for example by pressing Enter in a textfield.

element	:: LuaGuiElement	The confirmed element.
The confirmed element.
player_index	:: uint	The player who did the confirming.
The player who did the confirming.
alt	:: boolean	If alt was pressed.
If alt was pressed.
control	:: boolean	If control was pressed.
If control was pressed.
shift	:: boolean	If shift was pressed.
If shift was pressed.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_gui_elem_changed

Called when LuaGuiElement element value is changed (related to choose element buttons).

element	:: LuaGuiElement	The element whose element value changed.
The element whose element value changed.
player_index	:: uint	The player who did the change.
The player who did the change.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_gui_location_changed

Called when LuaGuiElement element location is changed (related to frames in player.gui.screen).

element	:: LuaGuiElement	The element whose location changed.
The element whose location changed.
player_index	:: uint	The player who did the change.
The player who did the change.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_gui_opened

Called when the player opens a GUI.

player_index	:: uint	The player.
The player.
gui_type	:: defines.gui_type	The GUI type that was opened.
The GUI type that was opened.
entity	:: LuaEntity?	The entity that was opened
The entity that was opened
item	:: LuaItemStack?	The item that was opened
The item that was opened
equipment	:: LuaEquipment?	The equipment that was opened
The equipment that was opened
other_player	:: LuaPlayer?	The other player that was opened
The other player that was opened
element	:: LuaGuiElement?	The custom GUI element that was opened
The custom GUI element that was opened
inventory	:: LuaInventory?	The script inventory that was opened
The script inventory that was opened
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_gui_selected_tab_changed

Called when LuaGuiElement selected tab is changed (related to tabbed-panes).

element	:: LuaGuiElement	The tabbed pane whose selected tab changed.
The tabbed pane whose selected tab changed.
player_index	:: uint	The player who did the change.
The player who did the change.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_gui_selection_state_changed

Called when LuaGuiElement selection state is changed (related to drop-downs and listboxes).

element	:: LuaGuiElement	The element whose selection state changed.
The element whose selection state changed.
player_index	:: uint	The player who did the change.
The player who did the change.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_gui_switch_state_changed

Called when LuaGuiElement switch state is changed (related to switches).

element	:: LuaGuiElement	The switch whose switch state changed.
The switch whose switch state changed.
player_index	:: uint	The player who did the change.
The player who did the change.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_gui_text_changed

Called when LuaGuiElement text is changed by the player.

element	:: LuaGuiElement	The edited element.
The edited element.
player_index	:: uint	The player who did the edit.
The player who did the edit.
text	:: string	The new text in the element.
The new text in the element.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_gui_value_changed

Called when LuaGuiElement slider value is changed (related to the slider element).

element	:: LuaGuiElement	The element whose value changed.
The element whose value changed.
player_index	:: uint	The player who did the change.
The player who did the change.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_land_mine_armed

Called when a land mine is armed.

mine	:: LuaEntity
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_lua_shortcut

Called when a custom Lua shortcut is pressed.

player_index	:: uint
prototype_name	:: string	Shortcut prototype name of the shortcut that was clicked.
Shortcut prototype name of the shortcut that was clicked.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_marked_for_deconstruction

Called when an entity is marked for deconstruction with the Deconstruction planner or via script. Can be filtered using LuaEntityMarkedForDeconstructionEventFilter.

entity	:: LuaEntity
player_index	:: uint?
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_marked_for_upgrade

Called when an entity is marked for upgrade with the Upgrade planner or via script. Can be filtered using LuaEntityMarkedForUpgradeEventFilter.

entity	:: LuaEntity
target	:: LuaEntityPrototype
player_index	:: uint?
direction	:: defines.direction?	The new direction (if any)
The new direction (if any)
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_market_item_purchased

Called after a player purchases some offer from a market entity.

player_index	:: uint	The player who did the purchasing.
The player who did the purchasing.
market	:: LuaEntity	The market entity.
The market entity.
offer_index	:: uint	The index of the offer purchased.
The index of the offer purchased.
count	:: uint	The amount of offers purchased.
The amount of offers purchased.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_mod_item_opened

Called when the player uses the 'Open item GUI' control on an item defined with the 'mod-openable' flag

player_index	:: uint	The player.
The player.
item	:: LuaItemPrototype	The item clicked on.
The item clicked on.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_permission_group_added

Called directly after a permission group is added.

player_index	:: uint	The player that added the group.
The player that added the group.
group	:: LuaPermissionGroup	The group added.
The group added.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_permission_group_deleted

Called directly after a permission group is deleted.

player_index	:: uint	The player doing the deletion.
The player doing the deletion.
group_name	:: string	The group that was deleted.
The group that was deleted.
id	:: uint	The group id that was deleted.
The group id that was deleted.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_permission_group_edited

Called directly after a permission group is edited in some way.

player_index	:: uint	The player that did the editing.
The player that did the editing.
group	:: LuaPermissionGroup	The group being edited.
The group being edited.
type	:: string	The edit type: "add-permission", "remove-permission", "enable-all", "disable-all", "add-player", "remove-player", "rename".
The edit type: "add-permission", "remove-permission", "enable-all", "disable-all", "add-player", "remove-player", "rename".
action	:: defines.input_action	The action when the `type` is "add-permission" or "remove-permission".
The action when the `type` is "add-permission" or "remove-permission".
other_player_index	:: uint	The other player when the `type` is "add-player" or "remove-player".
The other player when the `type` is "add-player" or "remove-player".
old_name	:: string	The old group name when the `type` is "rename".
The old group name when the `type` is "rename".
new_name	:: string	The new group name when the `type` is "rename".
The new group name when the `type` is "rename".
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_permission_string_imported

Called directly after a permission string is imported.

player_index	:: uint	The player that imported the string.
The player that imported the string.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_picked_up_item

Called when a player picks up an item.

item_stack	:: SimpleItemStack
player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_alt_reverse_selected_area

Called after a player alt-reverse-selects an area with a selection-tool item.

player_index	:: uint	The player doing the selection.
The player doing the selection.
surface	:: LuaSurface	The surface selected.
The surface selected.
area	:: BoundingBox	The area selected.
The area selected.
item	:: string	The item used to select the area.
The item used to select the area.
entities	:: array[LuaEntity]	The entities selected.
The entities selected.
tiles	:: array[LuaTile]	The tiles selected.
The tiles selected.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_alt_selected_area

Called after a player alt-selects an area with a selection-tool item.

player_index	:: uint	The player doing the selection.
The player doing the selection.
surface	:: LuaSurface	The surface selected.
The surface selected.
area	:: BoundingBox	The area selected.
The area selected.
item	:: string	The item used to select the area.
The item used to select the area.
entities	:: array[LuaEntity]	The entities selected.
The entities selected.
tiles	:: array[LuaTile]	The tiles selected.
The tiles selected.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_ammo_inventory_changed

Called after a players ammo inventory changed in some way.

player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_armor_inventory_changed

Called after a players armor inventory changed in some way.

player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_banned

Called when a player is banned.

player_index	:: uint?	The player banned.
The player banned.
player_name	:: string	The banned player name.
The banned player name.
by_player	:: uint?	The player that did the banning if any.
The player that did the banning if any.
reason	:: string?	The reason given if any.
The reason given if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_built_tile

Called after a player builds tiles.

player_index	:: uint
surface_index	:: uint	The surface the tile(s) were built on.
The surface the tile(s) were built on.
tiles	:: array[OldTileAndPosition]	The position data.
The position data.
tile	:: LuaTilePrototype	The tile prototype that was placed.
The tile prototype that was placed.
item	:: LuaItemPrototype?	The item type used to build the tiles
The item type used to build the tiles
stack	:: LuaItemStack?	The stack used to build the tiles (may be empty if all of the items where used to build the tiles).
The stack used to build the tiles (may be empty if all of the items where used to build the tiles).
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_cancelled_crafting

Called when a player cancels crafting.

player_index	:: uint	The player that did the crafting.
The player that did the crafting.
items	:: LuaInventory	The crafting items returned to the player's inventory.
The crafting items returned to the player's inventory.
recipe	:: LuaRecipe	The recipe that has been cancelled.
The recipe that has been cancelled.
cancel_count	:: uint	The number of crafts that have been cancelled.
The number of crafts that have been cancelled.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_changed_force

Called after a player changes forces.

player_index	:: uint	The player who changed forces.
The player who changed forces.
force	:: LuaForce	The old force.
The old force.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_changed_position

Called when the tile position a player is located at changes.

player_index	:: uint	The player.
The player.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_changed_surface

Called after a player changes surfaces.

player_index	:: uint	The player who changed surfaces.
The player who changed surfaces.
surface_index	:: uint	The surface index the player was on.
The surface index the player was on.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

In the instance a player is moved off a surface due to it being deleted this is not called.

on_player_cheat_mode_disabled

Called when cheat mode is disabled on a player.

player_index	:: uint	The player.
The player.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_cheat_mode_enabled

Called when cheat mode is enabled on a player.

player_index	:: uint	The player.
The player.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_clicked_gps_tag

Called when a player clicks a gps tag

player_index	:: uint	Index of the player
Index of the player
position	:: MapPosition	Map position contained in gps tag
Map position contained in gps tag
surface	:: string	Surface name contained in gps tag, even when such surface does not exists
Surface name contained in gps tag, even when such surface does not exists
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_configured_blueprint

Called when a player clicks the "confirm" button in the configure Blueprint GUI.

player_index	:: uint	The player.
The player.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_configured_spider_remote

Called when a player configures spidertron remote to be connected with a given spidertron

player_index	:: uint	The player that configured the remote.
The player that configured the remote.
vehicle	:: LuaEntity	Spider vehicle to which remote was connected to.
Spider vehicle to which remote was connected to.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_crafted_item

Called when the player finishes crafting an item. This event fires just before the results are inserted into the player's inventory, not when the crafting is queued (see on_pre_player_crafted_item).

item_stack	:: LuaItemStack	The item that has been crafted.
The item that has been crafted.
player_index	:: uint	The player doing the crafting.
The player doing the crafting.
recipe	:: LuaRecipe	The recipe used to craft this item.
The recipe used to craft this item.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_created

Called after the player was created.

player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_cursor_stack_changed

Called after a players cursorstack changed in some way.

player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_deconstructed_area

Called when a player selects an area with a deconstruction planner.

player_index	:: uint	The player doing the selection.
The player doing the selection.
surface	:: LuaSurface	The surface selected.
The surface selected.
area	:: BoundingBox	The area selected.
The area selected.
item	:: string	The item used to select the area.
The item used to select the area.
alt	:: boolean	If normal selection or alt selection was used.
If normal selection or alt selection was used.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_demoted

Called when a player is demoted.

player_index	:: uint	The player.
The player.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_died

Called after a player dies.

player_index	:: uint
cause	:: LuaEntity?
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_display_resolution_changed

Called when the display resolution changes for a given player.

player_index	:: uint	The player
The player
old_resolution	:: DisplayResolution	The old display resolution
The old display resolution
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_display_scale_changed

Called when the display scale changes for a given player.

player_index	:: uint	The player
The player
old_scale	:: double	The old display scale
The old display scale
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_driving_changed_state

Called when the player's driving state has changed, meaning a player has either entered or left a vehicle.

player_index	:: uint
entity	:: LuaEntity?	The vehicle if any.
The vehicle if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

This event is not raised when the player is ejected from a vehicle due to it being destroyed.

on_player_dropped_item

Called when a player drops an item on the ground.

player_index	:: uint
entity	:: LuaEntity	The item-on-ground entity.
The item-on-ground entity.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_fast_transferred

Called when a player fast-transfers something to or from an entity.

player_index	:: uint	The player transferred from or to.
The player transferred from or to.
entity	:: LuaEntity	The entity transferred from or to.
The entity transferred from or to.
from_player	:: boolean	Whether the transfer was from player to entity. If `false`, the transfer was from entity to player.
Whether the transfer was from player to entity. If `false`, the transfer was from entity to player.
is_split	:: boolean	Whether the transfer was a split action (half stack).
Whether the transfer was a split action (half stack).
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_flushed_fluid

Called after player flushed fluid

player_index	:: uint	Index of the player
Index of the player
fluid	:: string	Name of a fluid that was flushed
Name of a fluid that was flushed
amount	:: double	Amount of fluid that was removed
Amount of fluid that was removed
entity	:: LuaEntity	Entity from which flush was performed
Entity from which flush was performed
only_this_entity	:: boolean	True if flush was requested only on this entity
True if flush was requested only on this entity
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_gun_inventory_changed

Called after a players gun inventory changed in some way.

player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_joined_game

Called after a player joins the game. This is not called when loading a save file in singleplayer, as the player doesn't actually leave the game, and the save is just on pause until they rejoin.

player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_kicked

Called when a player is kicked.

player_index	:: uint	The player kicked.
The player kicked.
by_player	:: uint?	The player that did the kicking if any.
The player that did the kicking if any.
reason	:: string?	The reason given if any.
The reason given if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_left_game

Called after a player leaves the game. This is not called when closing a save file in singleplayer, as the player doesn't actually leave the game, and the save is just on pause until they rejoin.

player_index	:: uint
reason	:: defines.disconnect_reason
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_main_inventory_changed

Called after a players main inventory changed in some way.

player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_mined_entity

Called after the results of an entity being mined are collected just before the entity is destroyed. After this event any items in the buffer will be transferred into the player as if they came from mining the entity. Can be filtered using LuaPlayerMinedEntityEventFilter.

player_index	:: uint	The index of the player doing the mining.
The index of the player doing the mining.
entity	:: LuaEntity	The entity that has been mined.
The entity that has been mined.
buffer	:: LuaInventory	The temporary inventory that holds the result of mining the entity.
The temporary inventory that holds the result of mining the entity.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

The buffer inventory is special in that it's only valid during this event and has a dynamic size expanding as more items are transferred into it.

on_player_mined_item

Called when the player mines something.

item_stack	:: SimpleItemStack	The item given to the player
The item given to the player
player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_mined_tile

Called after a player mines tiles.

player_index	:: uint
surface_index	:: uint	The surface the tile(s) were mined from.
The surface the tile(s) were mined from.
tiles	:: array[OldTileAndPosition]	The position data.
The position data.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_muted

Called when a player is muted.

player_index	:: uint	The player.
The player.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_pipette

Called when a player invokes the "smart pipette" over an entity.

player_index	:: uint	The player
The player
item	:: LuaItemPrototype	The item put in the cursor
The item put in the cursor
used_cheat_mode	:: boolean	If cheat mode was used to give a free stack of the item.
If cheat mode was used to give a free stack of the item.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_placed_equipment

Called after the player puts equipment in an equipment grid

player_index	:: uint
equipment	:: LuaEquipment	The equipment put in the equipment grid.
The equipment put in the equipment grid.
grid	:: LuaEquipmentGrid	The equipment grid the equipment was put in.
The equipment grid the equipment was put in.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_promoted

Called when a player is promoted.

player_index	:: uint	The player.
The player.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_removed

Called when a player is removed (deleted) from the game. Not to be confused with the player logging of this is different in that the player is deleted as if he never existed in the save file.

player_index	:: uint	The player index that was removed
The player index that was removed
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_removed_equipment

Called after the player removes equipment from an equipment grid

player_index	:: uint
grid	:: LuaEquipmentGrid	The equipment grid removed from.
The equipment grid removed from.
equipment	:: string	The equipment removed.
The equipment removed.
count	:: uint	The count of equipment removed.
The count of equipment removed.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_repaired_entity

Called when a player repairs an entity. Can be filtered using LuaPlayerRepairedEntityEventFilter.

player_index	:: uint
entity	:: LuaEntity
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_respawned

Called after a player respawns.

player_index	:: uint
player_port	:: LuaEntity?	The player port used to respawn if one was used.
The player port used to respawn if one was used.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_reverse_selected_area

Called after a player reverse-selects an area with a selection-tool item.

player_index	:: uint	The player doing the selection.
The player doing the selection.
surface	:: LuaSurface	The surface selected.
The surface selected.
area	:: BoundingBox	The area selected.
The area selected.
item	:: string	The item used to select the area.
The item used to select the area.
entities	:: array[LuaEntity]	The entities selected.
The entities selected.
tiles	:: array[LuaTile]	The tiles selected.
The tiles selected.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_rotated_entity

Called when the player rotates an entity. This event is only fired when the entity actually changes its orientation -- pressing the rotate key on an entity that can't be rotated won't fire this event.

entity	:: LuaEntity	The rotated entity.
The rotated entity.
previous_direction	:: defines.direction	The previous direction
The previous direction
player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_selected_area

Called after a player selects an area with a selection-tool item.

player_index	:: uint	The player doing the selection.
The player doing the selection.
surface	:: LuaSurface	The surface selected.
The surface selected.
area	:: BoundingBox	The area selected.
The area selected.
item	:: string	The item used to select the area.
The item used to select the area.
entities	:: array[LuaEntity]	The entities selected.
The entities selected.
tiles	:: array[LuaTile]	The tiles selected.
The tiles selected.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_set_quick_bar_slot

Called when a player sets a quickbar slot to anything (new value, or set to empty).

player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_setup_blueprint

Called when a player selects an area with a blueprint.

player_index	:: uint	The player doing the selection.
The player doing the selection.
surface	:: LuaSurface	The surface selected.
The surface selected.
area	:: BoundingBox	The area selected.
The area selected.
item	:: string	The item used to select the area.
The item used to select the area.
alt	:: boolean	If normal selection or alt selection was used.
If normal selection or alt selection was used.
mapping	:: LuaLazyLoadedValue(dictionary[uint → LuaEntity])	The blueprint entity index to source entity mapping. Note: if any mod changes the blueprint this will be incorrect.
The blueprint entity index to source entity mapping. Note: if any mod changes the blueprint this will be incorrect.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_toggled_alt_mode

Called when a player toggles alt mode, also known as "show entity info".

player_index	:: uint
alt_mode	:: boolean	The new alt mode value. This value is a shortcut for accessing GameViewSettings::show_entity_info on the player.
The new alt mode value. This value is a shortcut for accessing GameViewSettings::show_entity_info on the player.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_toggled_map_editor

Called when a player toggles the map editor on or off.

player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_trash_inventory_changed

Called after a players trash inventory changed in some way.

player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_unbanned

Called when a player is un-banned.

player_index	:: uint?	The player un-banned.
The player un-banned.
player_name	:: string	The player name un-banned.
The player name un-banned.
by_player	:: uint?	The player that did the un-banning if any.
The player that did the un-banning if any.
reason	:: string?	The reason the player was banned if any.
The reason the player was banned if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_unmuted

Called when a player is unmuted.

player_index	:: uint	The player.
The player.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_used_capsule

Called when a player uses a capsule that results in some game action.

player_index	:: uint	The player.
The player.
item	:: LuaItemPrototype	The capsule item used.
The capsule item used.
position	:: MapPosition	The position the capsule was used.
The position the capsule was used.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_player_used_spider_remote

Called when a player uses spidertron remote to send a spidertron to a given position

player_index	:: uint	The player that used the remote.
The player that used the remote.
vehicle	:: LuaEntity	Spider vehicle which was requested to move.
Spider vehicle which was requested to move.
position	:: MapPosition	Goal position to which spidertron was sent to.
Goal position to which spidertron was sent to.
success	:: boolean	If the use was successful. It may fail when spidertron has different driver or when player is on different surface.
If the use was successful. It may fail when spidertron has different driver or when player is on different surface.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_post_entity_died

Called after an entity dies. Can be filtered using LuaPostEntityDiedEventFilter.

ghost	:: LuaEntity?	The ghost created by the entity dying if any.
The ghost created by the entity dying if any.
force	:: LuaForce?	The force that did the killing if any.
The force that did the killing if any.
position	:: MapPosition	Position where the entity died.
Position where the entity died.
prototype	:: LuaEntityPrototype	The entity prototype of the entity that died.
The entity prototype of the entity that died.
damage_type	:: LuaDamagePrototype?	The damage type if any.
The damage type if any.
corpses	:: array[LuaEntity]	The corpses created by the entity dying if any.
The corpses created by the entity dying if any.
surface_index	:: uint	The surface the entity was on.
The surface the entity was on.
unit_number	:: uint?	The unit number the entity had if any.
The unit number the entity had if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_build

Called when players uses an item to build something. Called before on_built_entity.

player_index	:: uint	The player who did the placing.
The player who did the placing.
position	:: MapPosition	Where the item was placed.
Where the item was placed.
shift_build	:: boolean	Item was placed using shift building.
Item was placed using shift building.
direction	:: defines.direction	The direction the item was facing when placed.
The direction the item was facing when placed.
flip_horizontal	:: boolean	Whether the blueprint was flipped horizontally. `nil` if not built by a blueprint.
Whether the blueprint was flipped horizontally. `nil` if not built by a blueprint.
flip_vertical	:: boolean	Whether the blueprint was flipped vertically. `nil` if not built by a blueprint.
Whether the blueprint was flipped vertically. `nil` if not built by a blueprint.
created_by_moving	:: boolean	Whether the item was placed while moving.
Whether the item was placed while moving.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_chunk_deleted

Called before one or more chunks are deleted using LuaSurface::delete_chunk.

surface_index	:: uint
positions	:: array[ChunkPosition]	The chunks to be deleted.
The chunks to be deleted.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_entity_settings_pasted

Called before entity copy-paste is done.

player_index	:: uint
source	:: LuaEntity	The source entity settings will be copied from.
The source entity settings will be copied from.
destination	:: LuaEntity	The destination entity settings will be copied to.
The destination entity settings will be copied to.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_ghost_deconstructed

Called before a ghost entity is destroyed as a result of being marked for deconstruction. Can be filtered using LuaPreGhostDeconstructedEventFilter.

player_index	:: uint?	The player that did the deconstruction if any.
The player that did the deconstruction if any.
ghost	:: LuaEntity
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_ghost_upgraded

Called before a ghost entity is upgraded. Can be filtered using LuaPreGhostUpgradedEventFilter.

player_index	:: uint?	The player that did the upgrade if any.
The player that did the upgrade if any.
ghost	:: LuaEntity
target	:: LuaEntityPrototype
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_permission_group_deleted

Called directly before a permission group is deleted.

player_index	:: uint	The player doing the deletion.
The player doing the deletion.
group	:: LuaPermissionGroup	The group to be deleted.
The group to be deleted.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_permission_string_imported

Called directly before a permission string is imported.

player_index	:: uint	The player importing the string.
The player importing the string.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_player_crafted_item

Called when a player queues something to be crafted.

player_index	:: uint	The player doing the crafting.
The player doing the crafting.
recipe	:: LuaRecipe	The recipe being queued.
The recipe being queued.
items	:: LuaInventory	The items removed from the players inventory to do the crafting.
The items removed from the players inventory to do the crafting.
queued_count	:: uint	The number of times the recipe is being queued.
The number of times the recipe is being queued.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_player_died

Called before a players dies.

player_index	:: uint
cause	:: LuaEntity?
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_player_left_game

Called before a player leaves the game.

player_index	:: uint
reason	:: defines.disconnect_reason
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_player_mined_item

Called when the player completes a mining action, but before the entity is potentially removed from the map. This is called even if the entity does not end up being removed. Can be filtered using LuaPrePlayerMinedEntityEventFilter.

entity	:: LuaEntity	The entity being mined
The entity being mined
player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_player_removed

Called before a player is removed (deleted) from the game. Not to be confused with the player logging of this is different in that the player is deleted as if he never existed in the save file.

player_index	:: uint	The player index that will be removed
The player index that will be removed
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_player_toggled_map_editor

Called before a player toggles the map editor on or off.

player_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_robot_exploded_cliff

Called directly before a robot explodes cliffs.

robot	:: LuaEntity
cliff	:: LuaEntity
item	:: LuaItemPrototype	The cliff explosive used.
The cliff explosive used.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_script_inventory_resized

Called just before a script inventory is resized.

player_index	:: uint?	If done by console command; the player who ran the command.
If done by console command; the player who ran the command.
mod	:: string	The mod that did the resizing. This will be `"core"` if done by console command or scenario script.
The mod that did the resizing. This will be `"core"` if done by console command or scenario script.
inventory	:: LuaInventory
old_size	:: uint	The old inventory size.
The old inventory size.
new_size	:: uint	The new inventory size.
The new inventory size.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_surface_cleared

Called just before a surface is cleared (all entities removed and all chunks deleted).

surface_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_pre_surface_deleted

Called just before a surface is deleted.

surface_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_research_cancelled

Called when research is cancelled.

research	:: dictionary[string → uint]	A mapping of technology name to how many times it was cancelled.
A mapping of technology name to how many times it was cancelled.
force	:: LuaForce	The force whose research was cancelled.
The force whose research was cancelled.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_research_finished

Called when a research finishes.

research	:: LuaTechnology	The researched technology
The researched technology
by_script	:: boolean	If the technology was researched by script.
If the technology was researched by script.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_research_reversed

Called when a research is reversed (unresearched).

research	:: LuaTechnology	The technology un-researched
The technology un-researched
by_script	:: boolean	If the technology was un-researched by script.
If the technology was un-researched by script.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_research_started

Called when a technology research starts.

research	:: LuaTechnology	The technology being researched
The technology being researched
last_research	:: LuaTechnology?
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_resource_depleted

Called when a resource entity reaches 0 or its minimum yield for infinite resources.

entity	:: LuaEntity
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_robot_built_entity

Called when a construction robot builds an entity. Can be filtered using LuaRobotBuiltEntityEventFilter.

robot	:: LuaEntity	The robot that did the building.
The robot that did the building.
created_entity	:: LuaEntity	The entity built.
The entity built.
stack	:: LuaItemStack	The item used to do the building.
The item used to do the building.
tags	:: Tags?	The tags associated with this entity if any.
The tags associated with this entity if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_robot_built_tile

Called after a robot builds tiles.

robot	:: LuaEntity	The robot.
The robot.
tiles	:: array[OldTileAndPosition]	The position data.
The position data.
tile	:: LuaTilePrototype	The tile prototype that was placed.
The tile prototype that was placed.
item	:: LuaItemPrototype	The item type used to build the tiles.
The item type used to build the tiles.
stack	:: LuaItemStack	The stack used to build the tiles (may be empty if all of the items where used to build the tiles).
The stack used to build the tiles (may be empty if all of the items where used to build the tiles).
surface_index	:: uint	The surface the tile(s) are build on.
The surface the tile(s) are build on.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_robot_exploded_cliff

Called directly after a robot explodes cliffs.

robot	:: LuaEntity
item	:: LuaItemPrototype	The cliff explosive used.
The cliff explosive used.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_robot_mined

Called when a robot mines an entity.

robot	:: LuaEntity	The robot that did the mining.
The robot that did the mining.
item_stack	:: SimpleItemStack	The entity the robot just picked up.
The entity the robot just picked up.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_robot_mined_entity

Called after the results of an entity being mined are collected just before the entity is destroyed. After this event any items in the buffer will be transferred into the robot as if they came from mining the entity. Can be filtered using LuaRobotMinedEntityEventFilter.

robot	:: LuaEntity	The robot doing the mining.
The robot doing the mining.
entity	:: LuaEntity	The entity that has been mined.
The entity that has been mined.
buffer	:: LuaInventory	The temporary inventory that holds the result of mining the entity.
The temporary inventory that holds the result of mining the entity.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

The buffer inventory is special in that it's only valid during this event and has a dynamic size expanding as more items are transferred into it.

on_robot_mined_tile

Called after a robot mines tiles.

robot	:: LuaEntity	The robot.
The robot.
tiles	:: array[OldTileAndPosition]	The position data.
The position data.
surface_index	:: uint	The surface the tile(s) were mined on.
The surface the tile(s) were mined on.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_robot_pre_mined

Called before a robot mines an entity. Can be filtered using LuaPreRobotMinedEntityEventFilter.

robot	:: LuaEntity	The robot that's about to do the mining.
The robot that's about to do the mining.
entity	:: LuaEntity	The entity which is about to be mined.
The entity which is about to be mined.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_rocket_launch_ordered

Called when a rocket silo is ordered to be launched.

rocket	:: LuaEntity
rocket_silo	:: LuaEntity
player_index	:: uint?	The player that is riding the rocket, if any.
The player that is riding the rocket, if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_rocket_launched

Called when the rocket is launched.

rocket	:: LuaEntity
rocket_silo	:: LuaEntity?
player_index	:: uint?	The player that is riding the rocket, if any.
The player that is riding the rocket, if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_runtime_mod_setting_changed

Called when a runtime mod setting is changed by a player.

player_index	:: uint?	If the `setting_type` is `"global"` and it was changed through the mod settings GUI, this is the index of the player that changed the global setting. If the `setting_type` is `"runtime-per-user"` and it changed a current setting of the player, this is the index of the player whose setting was changed. In all other cases, this is `nil`.
If the `setting_type` is `"global"` and it was changed through the mod settings GUI, this is the index of the player that changed the global setting. If the `setting_type` is `"runtime-per-user"` and it changed a current setting of the player, this is the index of the player whose setting was changed. In all other cases, this is `nil`.
setting	:: string	The prototype name of the setting that was changed.
The prototype name of the setting that was changed.
setting_type	:: string	Either "runtime-per-user" or "runtime-global".
Either "runtime-per-user" or "runtime-global".
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_script_inventory_resized

Called just after a script inventory is resized.

player_index	:: uint?	If done by console command; the player who ran the command.
If done by console command; the player who ran the command.
mod	:: string	The mod that did the resizing. This will be `"core"` if done by console command or scenario script.
The mod that did the resizing. This will be `"core"` if done by console command or scenario script.
inventory	:: LuaInventory
old_size	:: uint	The old inventory size.
The old inventory size.
new_size	:: uint	The new inventory size.
The new inventory size.
overflow_inventory	:: LuaInventory	Any items which didn't fit into the new inventory size.
Any items which didn't fit into the new inventory size.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_script_path_request_finished

Called when a LuaSurface::request_path call completes.

path	:: array[PathfinderWaypoint]?	The actual path that the pathfinder has determined. `nil` if pathfinding failed.
The actual path that the pathfinder has determined. `nil` if pathfinding failed.
id	:: uint	Handle to associate the callback with a particular call to LuaSurface::request_path.
Handle to associate the callback with a particular call to LuaSurface::request_path.
try_again_later	:: boolean	Indicates that the pathfinder failed because it is too busy, and that you can retry later.
Indicates that the pathfinder failed because it is too busy, and that you can retry later.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_script_trigger_effect

Called when a script trigger effect is triggered.

effect_id	:: string	The effect_id specified in the trigger effect.
The effect_id specified in the trigger effect.
surface_index	:: uint	The surface the effect happened on.
The surface the effect happened on.
source_position	:: MapPosition?
source_entity	:: LuaEntity?
target_position	:: MapPosition?
target_entity	:: LuaEntity?
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_sector_scanned

Called when an entity of type radar finishes scanning a sector. Can be filtered for the radar using LuaSectorScannedEventFilter.

radar	:: LuaEntity	The radar that did the scanning.
The radar that did the scanning.
chunk_position	:: ChunkPosition	The chunk scanned.
The chunk scanned.
area	:: BoundingBox	Area of the scanned chunk.
Area of the scanned chunk.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_selected_entity_changed

Called after the selected entity changes for a given player.

player_index	:: uint	The player whose selected entity changed.
The player whose selected entity changed.
last_entity	:: LuaEntity?	The last selected entity if it still exists and there was one.
The last selected entity if it still exists and there was one.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_spider_command_completed

Called when a spider finishes moving to its autopilot position.

vehicle	:: LuaEntity	Spider vehicle which was requested to move.
Spider vehicle which was requested to move.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_string_translated

Called when a translation request generated through LuaPlayer::request_translation or LuaPlayer::request_translations has been completed.

player_index	:: uint	The player whose locale was used for the translation.
The player whose locale was used for the translation.
localised_string	:: LocalisedString	The localised string being translated.
The localised string being translated.
result	:: string	The translated `localised_string`.
The translated `localised_string`.
id	:: uint	The unique id for this translation request.
The unique id for this translation request.
translated	:: boolean	Whether the requested localised string was valid and could be translated.
Whether the requested localised string was valid and could be translated.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_surface_cleared

Called just after a surface is cleared (all entities removed and all chunks deleted).

surface_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_surface_created

Called when a surface is created.

surface_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

Note

This is not called when the default surface is created as it will always exist.

on_surface_deleted

Called after a surface is deleted.

surface_index	:: uint
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_surface_imported

Called after a surface is imported.

surface_index	:: uint
original_name	:: string	The original surface name.
The original surface name.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_surface_renamed

Called when a surface is renamed.

surface_index	:: uint
old_name	:: string
new_name	:: string
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_technology_effects_reset

Called when LuaForce::reset_technology_effects is finished.

force	:: LuaForce
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_tick

It is fired once every tick. Since this event is fired every tick, its handler shouldn't include performance heavy code.

name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_train_changed_state

Called when a train changes state (started to stopped and vice versa)

train	:: LuaTrain
old_state	:: defines.train_state
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_train_created

Called when a new train is created either through disconnecting/connecting an existing one or building a new one.

train	:: LuaTrain
old_train_id_1	:: uint?	The first old train id when splitting/merging trains.
The first old train id when splitting/merging trains.
old_train_id_2	:: uint?	The second old train id when splitting/merging trains.
The second old train id when splitting/merging trains.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_train_schedule_changed

Called when a trains schedule is changed either by the player or through script.

train	:: LuaTrain
player_index	:: uint?	The player who made the change if any.
The player who made the change if any.
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_trigger_created_entity

Called when an entity with a trigger prototype (such as capsules) create an entity AND that trigger prototype defined trigger_created_entity="true".

entity	:: LuaEntity
source	:: LuaEntity?
name	:: defines.events	Identifier of the event
Identifier of the event
tick	:: uint	Tick the event was generated.
Tick the event was generated.

on_trigger_fired_artillery

Called when an entity with a trigger prototype (such as capsules) fire an artillery projectile AND that trigger prototype defined trigger_fired_artillery="true".

entity	:: LuaEntity
source	:: LuaEntity?
name	:: defines.events	Identifier of the event
Identifier of the event
tick

Factorio Runtime Docs

Events

CustomInputEvent

on_ai_command_completed

on_area_cloned

on_biter_base_built

Note

on_brush_cloned

on_build_base_arrived

on_built_entity

on_cancelled_deconstruction

on_cancelled_upgrade

on_character_corpse_expired

Note

on_chart_tag_added

on_chart_tag_modified

on_chart_tag_removed

on_chunk_charted

on_chunk_deleted

on_chunk_generated

on_combat_robot_expired

on_console_chat

Note

on_console_command

on_cutscene_cancelled

on_cutscene_waypoint_reached

Note

on_difficulty_settings_changed

Note

on_entity_cloned

on_entity_damaged

Note

on_entity_destroyed

Note

on_entity_died

on_entity_logistic_slot_changed

Note

on_entity_renamed

on_entity_settings_pasted

on_entity_spawned

on_equipment_inserted

on_equipment_removed

on_force_cease_fire_changed

on_force_created

Note

on_force_friends_changed

on_force_reset

on_forces_merged

Note

on_forces_merging

on_game_created_from_scenario

Note

on_gui_checked_state_changed

on_gui_click

on_gui_closed

Note

on_gui_confirmed

on_gui_elem_changed

on_gui_location_changed

on_gui_opened

on_gui_selected_tab_changed

on_gui_selection_state_changed

on_gui_switch_state_changed

on_gui_text_changed

on_gui_value_changed

on_land_mine_armed

on_lua_shortcut

on_marked_for_deconstruction

on_marked_for_upgrade

on_market_item_purchased

on_mod_item_opened

on_permission_group_added

on_permission_group_deleted

on_permission_group_edited

on_permission_string_imported

on_picked_up_item

on_player_alt_reverse_selected_area

on_player_alt_selected_area

on_player_ammo_inventory_changed

on_player_armor_inventory_changed