43 lines
1017 B
Plaintext
43 lines
1017 B
Plaintext
/**
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* # Index Component
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*
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* Return the index of a list
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*/
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/obj/item/circuit_component/index
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display_name = "Index List"
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desc = "A component that returns the value of a list at a given index."
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/// The input port
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var/datum/port/input/list_port
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var/datum/port/input/index_port
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/// The result from the output
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var/datum/port/output/output
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circuit_flags = CIRCUIT_FLAG_INPUT_SIGNAL|CIRCUIT_FLAG_OUTPUT_SIGNAL
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/obj/item/circuit_component/index/Initialize(mapload)
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. = ..()
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index_port = add_input_port("Index", PORT_TYPE_ANY)
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list_port = add_input_port("List", PORT_TYPE_LIST)
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output = add_output_port("Value", PORT_TYPE_ANY)
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/obj/item/circuit_component/index/input_received(datum/port/input/port)
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. = ..()
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if(.)
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return
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var/index = index_port.value
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var/list/list_input = list_port.value
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if(!islist(list_input) || !index)
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output.set_output(null)
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return
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if(isnum(index) && (index < 1 || index > length(list_input)))
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output.set_output(null)
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return
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output.set_output(list_input[index])
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