/obj/item/integrated_circuit/passive/power
	name = "power thingy"
	desc = "Does power stuff."
	complexity = 5
	origin_tech = list(TECH_POWER = 2, TECH_ENGINEERING = 2, TECH_DATA = 2)
	category_text = "Power - Passive"

/obj/item/integrated_circuit/passive/power/proc/make_energy()
	return

// For calculators.
/obj/item/integrated_circuit/passive/power/solar_cell
	name = "tiny photovoltaic cell"
	desc = "It's a very tiny solar cell, generally used in calculators."
	extended_desc = "The cell generates 1W of power per second in optimal lighting conditions.  Less light will result in less power being generated."
	icon_state = "solar_cell"
	complexity = 8
	origin_tech = list(TECH_POWER = 3, TECH_ENGINEERING = 3, TECH_DATA = 2)
	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
	var/max_power = 30

/obj/item/integrated_circuit/passive/power/solar_cell/make_energy()
	var/turf/T = get_turf(src)
	var/light_amount = T ? T.get_lumcount() : 0
	var/adjusted_power = max(max_power * light_amount, 0)
	adjusted_power = round(adjusted_power, 0.1)
	if(adjusted_power)
		if(assembly)
			assembly.give_power(adjusted_power)

/obj/item/integrated_circuit/passive/power/starter
	name = "starter"
	desc = "This tiny circuit will send pulse right after device is turned on. Or when power is restored."
	icon_state = "led"
	complexity = 1
	activators = list("pulse out" = IC_PINTYPE_PULSE_OUT)
	origin_tech = list(TECH_POWER = 3, TECH_ENGINEERING = 3, TECH_DATA = 2)
	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
	var/is_charge = FALSE

/obj/item/integrated_circuit/passive/power/starter/make_energy()
	if(assembly.battery)
		if(assembly.battery.charge)
			if(!is_charge)
				activate_pin(1)
			is_charge = TRUE
		else
			is_charge = FALSE
	else
		is_charge=FALSE
	return FALSE

// For fat machines that need fat power, like drones.
/obj/item/integrated_circuit/passive/power/relay
	name = "tesla power relay"
	desc = "A seemingly enigmatic device which connects to nearby APCs wirelessly and draws power from them."
	w_class = WEIGHT_CLASS_SMALL
	extended_desc = "The siphon generates 50 W of power, so long as an APC is in the same room, with a cell that has energy.  It will always drain \
	from the 'equipment' power channel."
	icon_state = "power_relay"
	complexity = 7
	origin_tech = list(TECH_POWER = 3, TECH_ENGINEERING = 3, TECH_DATA = 2)
	spawn_flags = IC_SPAWN_RESEARCH
	var/power_amount = 50
//fuel cell

/obj/item/integrated_circuit/passive/power/chemical_cell
	name = "fuel cell"
	desc = "Produces electricity from chemicals."
	icon_state = "chemical_cell"
	extended_desc = "This is effectively an internal beaker.It will consume and produce power from phoron, slime jelly, welding fuel, carbon,\
	 ethanol, nutriments and blood , in order of decreasing efficiency. It will consume fuel only if the battery can take more energy."
	container_type = OPENCONTAINER_1
	complexity = 4
	inputs = list()
	outputs = list("volume used" = IC_PINTYPE_NUMBER,"self reference" = IC_PINTYPE_REF)
	activators = list()
	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
	origin_tech = list(TECH_ENGINEERING = 2, TECH_DATA = 2, TECH_BIO = 2)
	var/volume = 60
	var/list/fuel = list("plasma" = 10000, "welding_fuel" = 3000, "carbon" = 2000, "ethanol"= 2000, "nutriment" =1600, "blood" = 1000)

/obj/item/integrated_circuit/passive/power/chemical_cell/New()
	..()
	create_reagents(volume)

/obj/item/integrated_circuit/passive/power/chemical_cell/interact(mob/user)
	set_pin_data(IC_OUTPUT, 2, WEAKREF(src))
	push_data()
	..()

/obj/item/integrated_circuit/passive/power/chemical_cell/on_reagent_change()
	set_pin_data(IC_OUTPUT, 1, reagents.total_volume)
	push_data()

/obj/item/integrated_circuit/passive/power/chemical_cell/make_energy()
	if(assembly)
		if(assembly.battery)
			for(var/I in fuel)
				if((assembly.battery.maxcharge-assembly.battery.charge) / GLOB.CELLRATE > fuel[I])
					if(reagents.remove_reagent(I, 1))
						assembly.give_power(fuel[I])


// For really fat machines.
/obj/item/integrated_circuit/passive/power/relay/large
	name = "large tesla power relay"
	desc = "A seemingly enigmatic device which connects to nearby APCs wirelessly and draws power from them, now in industiral size!"
	w_class = WEIGHT_CLASS_BULKY
	extended_desc = "The siphon generates 1 kW of power, so long as an APC is in the same room, with a cell that has energy.  It will always drain \
	from the 'equipment' power channel."
	icon_state = "power_relay"
	complexity = 15
	origin_tech = list(TECH_POWER = 6, TECH_ENGINEERING = 5, TECH_DATA = 4)
	spawn_flags = IC_SPAWN_RESEARCH
	power_amount = 1000

/obj/item/integrated_circuit/passive/power/relay/make_energy()
	if(!assembly)
		return
	var/area/A = get_area(src)
	if(A)
		if(A.powered(EQUIP) && assembly.give_power(power_amount))
			A.use_power(power_amount, EQUIP)
			// give_power() handles CELLRATE on its own.