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

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#define COMP_LOGIC_AND "AND"
#define COMP_LOGIC_OR "OR"
#define COMP_LOGIC_XOR "XOR"
/**
* # Logic Component
*
* General logic unit with AND OR capabilities
*/
/obj/item/circuit_component/compare/logic
display_name = "Logic"
desc = "A component with 'and' and 'or' capabilities."
var/datum/port/input/option/logic_options
/obj/item/circuit_component/compare/logic/populate_options()
var/static/component_options = list(
COMP_LOGIC_AND,
COMP_LOGIC_OR,
COMP_LOGIC_XOR,
)
logic_options = add_option_port("Logic Options", component_options)
/obj/item/circuit_component/compare/logic/do_comparisons(list/ports)
. = FALSE
var/current_option = logic_options.value
// Used by XOR
var/total_ports = 0
var/total_true_ports = 0
for(var/datum/port/input/port as anything in ports)
if(isnull(port.value) && length(port.connected_ports) == 0)
continue
total_ports += 1
switch(current_option)
if(COMP_LOGIC_AND)
if(!port.value)
return FALSE
. = TRUE
if(COMP_LOGIC_OR)
if(port.value)
return TRUE
if(COMP_LOGIC_XOR)
if(port.value)
. = TRUE
total_true_ports += 1
if(current_option == COMP_LOGIC_XOR)
if(total_ports == total_true_ports)
return FALSE
if(.)
return TRUE
#undef COMP_LOGIC_AND
#undef COMP_LOGIC_OR
#undef COMP_LOGIC_XOR