scripts.on_event not working

[kingarthur]

im trying to set up a script that will upon an entity's death create an entity at that position. i think im close to getting it to work but im having issues with factorio telling me (attempt to index gobal 'script' a nil value). im not sure what is wrong with it as any references to script.on_event look the same as what i did.

here is the code

Code: Select all

local oretest = {}

script.on_event(defines.events.on_entity_died, function(event)
  if event.entity.name == "small-biter" then
  local smallbiter = event.entity
  local targetpos = smallbiter.surface.find_non_colliding_position("copper-ore", smallbiter.position, 10, 1)
	end
	
	local tore = player.surface.create_entity({
         name = "copper-ore", 
         position = targetPos
         })
		 end)

[prg]

"script" shouldn't be the problem here, if that's nil... are you actually doing this in control.lua, not data.lua? Or are you using some ancient version of Factorio?

Actual problems:

• You're defining targetpos as a local variable in an if block, then try to use it outside that block where it's not in scope anymore.
• Lua is case sensitive. You're defining targetpos, then try to use it as targetPos.
• You're trying to index player, which isn't defined anywhere. Using the entity that died here would make more sense.

[kingarthur]

i was not doing it in control.lua or data.lua. i was trying to it inside entity.lua in the prototypes folder of the mod. the player reference was a mistake, as i copyed an example code and forgot to fix it. thanks

[kingarthur]

now it works perfectly. thank you

[prg]

i was not doing it in control.lua or data.lua. i was trying to it inside entity.lua in the prototypes folder of the mod.

That counts as data.lua, since all those prototype definitions are included from there.

[kingarthur]

oh. well that will be good to know moving forward