Factorio Forums

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function on_rocket_launched (event)
	local rocket = event.rocket
	if rocket then
		local inventory = rocket.get_inventory(defines.inventory.rocket)
		if inventory then
			local count = inventory.get_item_count("name-of-some-item")
			local surface = rocket.surface
			# Do something here with count of launched item and surface
		end
	end
end
script.on_event(defines.events.on_rocket_launched, on_rocket_launched)

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script.on_event(defines.events.on_tick,function(event)
  for _, player in pairs(game.players) do change_output(player.surface,"player","ds-energy-loader") end
end)

function change_output(surface, force, entity_name)
  local entities = surface.find_entities_filtered{force=force, name=entity_name}
  for _, entity in pairs(entities) do
	if global.dysonsphere == nil then 
		global.dysonsphere = 0
	end 
	entity.power_production = global.dysonsphere / #entities * 100000 / 60
  end
end

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script.on_event(defines.events.on_rocket_launched,function(event)
  rocketLaunched(event)
end)

function rocketLaunched(event)
  local rocket_inventory = event.rocket.get_inventory(1)
  if rocket_inventory.get_item_count("dyson-sphere-satellite") == 0 then
    return
  end
  if global.dysonsphere == nil then
   global.dysonsphere = 0
  end
  global.dysonsphere = global.dysonsphere+1
  game.players[1].print("launched, count "..global.dysonsphere)
end

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{
	type = "electric-energy-interface",
	name = "ds-energy-loader",
	icon = "__base__/graphics/icons/accumulator.png",
	icon_size = 64,
	flags = {"placeable-neutral", "placeable-player", "player-creation"},
	minable = {hardness = 0.2, mining_time = 0.5, result = "ds-energy-loader"},
	max_health = 250,
	energy_source = {
		type = "electric",
		usage_priority = "tertiary",
		--input_flow_limit = "0MW",
		--output_flow_limit = "1000GW",
	},
	allow_copy_paste = true,
	collision_box = {{-0.9, -0.9}, {0.9, 0.9}},
    	selection_box = {{-1, -1}, {1, 1}},
	collision_mask = {},
	picture = accumulator_picture( {r=0.6, g=1, b=1, a=1} ),
	energy_production = "1ZW",
	energy_usage = "0kW",
}

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{
	type = "electric-energy-interface",
	name = "ds-energy-loader",
	icon = "__base__/graphics/icons/accumulator.png",
	icon_size = 64,
	flags = {"placeable-neutral", "placeable-player", "player-creation"},
	minable = {hardness = 0.2, mining_time = 0.5, result = "ds-energy-loader"},
	max_health = 250,
	energy_source = {
		type = "electric",
		usage_priority = "tertiary",
		buffer_capacity = "10GJ",
		render_no_power_icon=true,
		--input_flow_limit = "0MW",
		--output_flow_limit = "1000GW",
	},
	allow_copy_paste = true,
	collision_box = {{-0.9, -0.9}, {0.9, 0.9}},
    selection_box = {{-1, -1}, {1, 1}},
	collision_mask = {},
	picture = accumulator_picture( {r=0.6, g=1, b=1, a=1} ),
	energy_production = "0kW",
	energy_usage = "0kW",
	--corpse = "medium-remnants",
    --subgroup = "other",
}

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local ticktime=0
script.on_event(defines.events.on_tick,function(event)
	if ticktime < 60 then
		ticktime = ticktime+1
	else 
		for _, player in pairs(game.players) do change_output(player.surface,"player","ds-energy-loader") end
		ticktime=0
	end
end)

function change_output(surface, force, entity_name)
  local entities = surface.find_entities_filtered{force=force, name=entity_name}
  for _, entity in pairs(entities) do
	if global.dysonsphere == nil then 
		global.dysonsphere = 0
	end 
	--game.players[1].print("worked! "..global.dysonsphere)
	entity.power_production = global.dysonsphere / #entities * 100000 / 60
	entity.electric_buffer_size = global.dysonsphere / #entities * 100000 / 60
  end
end

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local entities = surface.find_entities_filtered{force=force, name=entity_name}

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/c script.on_event(defines.events.on_tick, function() local a = game.players[1].surface.find_entities_filtered{name = 'burner-inserter'} end)

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script.on_init(function(event)
    global.things_I_care_about = {}
    global.things_I_care_about_count = 0
end)

function add_entity(event)
    global.things_I_care_about[event.entity] = true
    global.things_I_care_about_count = global.things_I_care_about_count + 1
end

function remove_entity(event)
    if global.things_I_care_about[event.entity] ~= nil then
        global.things_I_care_about[event.entity] = nil
        global.things_I_care_about_count = global.things_I_care_about_count - 1
    end
end

script.on_event(defines.events.on_something_added,                     add_entity)
script.on_event(defines.events.on_another_event_where_something_added, add_entity)

script.on_event(defines.events.on_something_removed,                remove_entity)

script.on_event(defines.events.on_event_where_I_go_through_my_items, function(event)
    -- If you just need count then 
    -- global.things_I_care_about_count
    -- is the same as 
    -- table_size(global.things_I_care_about) 
    -- but is faster since it's already calculated

    for entity, _ in pairs(global.things_I_care_about) do
        if entity.valid then 
            do_stuff(entity)
        else
            global.things_I_care_about[entity] = nil
            global.things_I_care_about_count = global.things_I_care_about_count - 1
        end
    end
end)

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global.generators[entity] = entity

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for entity, _ in pairs(global.things_I_care_about) do
        if entity.valid then 
            do_stuff(entity)
	…
        end

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global = {
	things_I_care_about = {
		entity1 = true,
		entity2 = true,
		…
	}
}

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global = {
	things_I_care_about = {
		[1] = {entity, true}
		[2] = {entity, true}
		…
	}
}

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for _, entity in pairs(global.things_I_care_about) do

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for entity, _ in pairs(global.things_I_care_about) do

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local xpression = 5
local my_table = {
	blubb = 3,
	['key with space'] = 9,
	[xpression] = 11
}
my_table[1026] = 34
my_table[1025] = 33
my_table[1] = 99 
for k, v in pairs(my_table) do
	game.print(game.table_to_json({key = k, value = v}))
end

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{"key":1,"value":99}
{"key":5,"value":11}
{"key":"blubb","value":3}
{"key":"key with space","value":9}
{"key":1026,"value":34}
{"key":1025,"value":33}