Factorio Forums

Posted: **Sat May 15, 2021 3:24 pm**

I am a bit hesitant to post this here since I fear I just did something wrong but I am 99% certain this is not my fault. Anyway I wrote a mod that stops a train if one of its rolling stock gets destroyed and creates a ghost to replace it.

Code: Select all

script.on_event(defines.events.on_entity_died, function(event)
    	local entity = event.entity
	local train = entity.train
	-- stops the train
   	train.speed = 0
	-- creates ghost entity
    	game.surfaces[entity.surface.name].create_entity{
        	name = "entity-ghost",
       		inner_name = entity.name,
       		position = entity.position,
		direction = entity.direction,
        	force = entity.force,
        	create_build_effect_smoke = false,
        	 }
end, {{filter = "rolling-stock"}})

The issue I am having is that the created locomotive ghosts are the wrong way around if the destroyed locomotives got rotated before they got built.

Reproduction steps

Paste the code above into control.lua
Start a game and build some rails
Take a locomotive item
Press R
Build the locomotive
Shoot the locomotive
Observe that the created ghost is the wrong way around

If you rotate the locomotive after you build it you get the same issue.
If you do it without pressing R the locomotive has the right direction.

Posted: **Sat May 15, 2021 5:57 pm**

See also viewtopic.php?t=58256

Posted: **Sun May 16, 2021 6:41 am**

Thanks for the report however i am moving this to Not a bug because your code is broken.

Your assumption is that the LuaEntity::direction will return direction of a rolling stock, but rolling stocks do not use directions so it always returns North. Please use LuaEntity::orientation and do create_entity{orientation=...} instead.

Posted: **Sun May 16, 2021 8:05 am**

Thanks for your answer. That fixed it!

In my defense: it's not documented in https://lua-api.factorio.com/latest/Lua ... ate_entity. I'll post it in documentation improvements.

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[1.1.33] Rotated locomotive returns wrong direction

[1.1.33] Rotated locomotive returns wrong direction

Re: [1.1.33] Rotated locomotive returns wrong direction

Re: [1.1.33] Rotated locomotive returns wrong direction

Re: [1.1.33] Rotated locomotive returns wrong direction