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S.P.L.U.R.T-Station-13/code/modules/wiremod/components/list/index_table.dm
2021-10-28 12:51:31 +08:00

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/**
* # Index Table Component
*
* Gets the row of a table using the index inputted. Will return no value if the index is invalid or a proper table is not returned.
*/
/obj/item/circuit_component/index_table
display_name = "Index Table"
desc = "Gets the row of a table using the index inputted. Will return no value if the index is invalid or a proper table is not returned."
circuit_flags = CIRCUIT_FLAG_INPUT_SIGNAL|CIRCUIT_FLAG_OUTPUT_SIGNAL
/// The list to perform the filter on
var/datum/port/input/received_table
/// The target index
var/datum/port/input/target_index
/// The filtered list
var/datum/port/output/output_list
/obj/item/circuit_component/index_table/Initialize()
. = ..()
received_table = add_input_port("Input", PORT_TYPE_TABLE)
target_index = add_input_port("Index", PORT_TYPE_NUMBER)
output_list = add_output_port("Output", PORT_TYPE_LIST)
/obj/item/circuit_component/index_table/input_received(datum/port/input/port)
. = ..()
if(.)
return
var/list/target_list = received_table.value
if(!islist(target_list) || !length(target_list))
output_list.set_output(null)
return
var/index = target_index.value
if(index < 1 || index > length(target_list))
output_list.set_output(null)
return
output_list.set_output(target_list[index])