Factorio Forums

Tami wrote:Is it possible to disable placement of structures like laser towers without preventing laser tower tech or turrets?
Same goes for solar panels.

Tami wrote:Example with /permissions settings.
Would be great to disable placement of certain structures.
If not possible with permissions (as it is yet), maybe a simble lua command script could help too if there is one. Keep in mind that the laser turrets needs to be build for certain receipe, but not be placed, same for solar for certain receipes.

script.on_event(defines.events.on_built_entity, function(event)
  
  local entity = event.created_entity
  local player = game.players[event.player_index]
  
  if entity.name == "laser-turret" then
    entity.destroy()
    player.insert{name = "laser-turret", count = 1}
    player.print("Placing laser turrets is not allowed")
    return
  end
  
  if entity.name == "entity-ghost" and entity.ghost_name == "laser-turret" then
    entity.destroy()
    player.print("Don't build ghosts or blueprints of laser turrets either.")
    return
  end
  
end)

Klonan wrote: Tue Oct 24, 2017 5:44 pm

Tami wrote:Example with /permissions settings.
Would be great to disable placement of certain structures.
If not possible with permissions (as it is yet), maybe a simble lua command script could help too if there is one. Keep in mind that the laser turrets needs to be build for certain receipe, but not be placed, same for solar for certain receipes.

You will have to listen to on_built_event, something like this:

Code: Select all

script.on_event(defines.events.on_built_entity, function(event)
  
  local entity = event.created_entity
  local player = game.players[event.player_index]
  
  if entity.name == "laser-turret" then
    entity.destroy()
    player.insert{name = "laser-turret", count = 1}
    player.print("Placing laser turrets is not allowed")
    return
  end
  
  if entity.name == "entity-ghost" and entity.ghost_name == "laser-turret" then
    entity.destroy()
    player.print("Don't build ghosts or blueprints of laser turrets either.")
    return
  end
  
end)

Klonan wrote: Tue Oct 24, 2017 5:44 pm

Tami wrote:Example with /permissions settings.
Would be great to disable placement of certain structures.
If not possible with permissions (as it is yet), maybe a simble lua command script could help too if there is one. Keep in mind that the laser turrets needs to be build for certain receipe, but not be placed, same for solar for certain receipes.

You will have to listen to on_built_event, something like this:

Code: Select all

script.on_event(defines.events.on_built_entity, function(event)
  
  local entity = event.created_entity
  local player = game.players[event.player_index]
  
  if entity.name == "laser-turret" then
    entity.destroy()
    player.insert{name = "laser-turret", count = 1}
    player.print("Placing laser turrets is not allowed")
    return
  end
  
  if entity.name == "entity-ghost" and entity.ghost_name == "laser-turret" then
    entity.destroy()
    player.print("Don't build ghosts or blueprints of laser turrets either.")
    return
  end
  
end)

mrvn wrote: Mon Apr 24, 2023 1:02 pm
I think a better solution to preventing placing entites, at least when you want to do it for all players for the whole game, is to simply remove the place_result property from the item:

https://wiki.factorio.com/Prototype/Item#place_result

hackamod wrote: Wed Apr 26, 2023 9:31 pm I have more questions than answers but:
If you want to prevent the placement in order to maintain status for an achievement, then it is probably too late to catch it after it has been placed and remove it. I am not sure, but that would be my guess.

Again I am not sure, entity flags include "placeable-player" which seems to mean the player is allowed or able to place the entity... you can probably remove that flag or something
I do not know if that will prevent bots from placing one on a ghosted blueprint either but would like to find out