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-- Make sure our functions get called for specific events.
-- A robot built one.
game.onevent(defines.events.onrobotbuiltentity, function(event) OnBuilt(event.createdentity) end)
-- A player built one.
game.onevent(defines.events.onbuiltentity, function(event) OnBuilt(event.createdentity) end)

-- A player removed one.
game.onevent(defines.events.onpreplayermineditem, function(event) OnRemoved(event.entity) end)
-- A robot removed one.
game.onevent(defines.events.onrobotpremined, function(event) OnRemoved(event.entity) end)
-- It died.
game.onevent(defines.events.onentitydied, function(event) OnRemoved(event.entity) end)

function OnBuilt(entity)
   -- We've just built the pole.
   if entity.name == "small-electric-pole-with-lights" then
      -- Spawn a light source at its position.
      game.createentity{name = "pole-light", position = entity.position, force = entity.force}
   end
end

function OnRemoved(entity)
   -- The pole died, remove the "pole-light".
   if entity.name == "small-electric-pole-with-lights" then
      -- Search the area around the pole for the light.
      res = game.findentitiesfiltered{name="pole-light", area=GetArea(entity.position, 0.5)}
      if #res then
         -- If we've found it, destroy it.
         res[1].destroy()
      end
   end
   -- The "pole-light" died, remove the pole.
   if entity.name == "pole-light" then
      res = game.findentitiesfiltered{name="small-electric-pole-with-lights", area=GetArea(entity.position, 0.5)}
      if #res then
         res[1].destroy()
      end
   end
end

function GetArea(pos, radius)
   -- This calculates a box of the given radius around the given position.
   return {{x = pos.x - radius, y = pos.y - radius}, {x = pos.x + radius, y = pos.y + radius}}
end

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script.on_event(defines.events.on_chunk_generated, function(event) OnBuilt(event.createdentity) end)

-- A player mines the ore out.
script.on_event(defines.events.on_resource_depleted, function(event) OnRemoved(event.entity) end)

function OnBuilt(entity)
   -- When ore spawned
   if entity.name == "glow-ore" then
      -- Spawn a light source at its position.
      game.createentity{name = "ore-light", position = entity.position, force = entity.force}
   end
end

function OnRemoved(entity)
   -- The ore is mined out, remove the "ore-light".
   if entity.name == "glow-ore" then
      -- Search the area around the ore for the light.
      res = game.findentitiesfiltered{name="ore-light", area=GetArea(entity.position, 0.5)}
      if #res then
         -- If we've found it, destroy it.
         res[1].destroy()
      end
   end
end

function GetArea(pos, radius)
   -- This calculates a box of the given radius around the given position.
   return {{x = pos.x - radius, y = pos.y - radius}, {x = pos.x + radius, y = pos.y + radius}}
end

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script.on_event(defines.events.on_chunk_generated, function(event) 
	if game.get_surface(1).find_entities_filtered{area=event.area,name="glow-ore",type="resource"} then
		game.get_surface(1).create_entity{name="ore-light",position={0,0}}
	end
end)

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collision_mask = {"ghost-layer"},

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script.on_event(defines.events.on_chunk_generated, function(event) 
  local s =event.surface --Makes it multi-surface support
	for k, r in pairs (s.find_entities_filtered{area=event.area,name="glow-ore"}) do --iterates over every value in the array
		s.create_entity{name="ore-light",position=r.position} --creates the light with each iteration, with the position at that entities position
        end
end)

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flags = {"placeable-off-grid", "not-on-map"},