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CHOMPStation2/code/modules/power/power.dm
2021-07-16 17:44:40 +00:00

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//////////////////////////////
// POWER MACHINERY BASE CLASS
//////////////////////////////
/////////////////////////////
// Definitions
/////////////////////////////
/obj/machinery/power
name = null
icon = 'icons/obj/power.dmi'
anchored = TRUE
var/datum/powernet/powernet = null
use_power = USE_POWER_OFF
idle_power_usage = 0
active_power_usage = 0
/obj/machinery/power/Destroy()
disconnect_from_network()
return ..()
///////////////////////////////
// General procedures
//////////////////////////////
// common helper procs for all power machines
/obj/machinery/power/drain_power(var/drain_check, var/surge, var/amount = 0)
if(drain_check)
return 1
if(powernet && powernet.avail)
powernet.trigger_warning()
return powernet.draw_power(amount)
/obj/machinery/power/proc/add_avail(var/amount)
if(powernet)
powernet.newavail += amount
return TRUE
return FALSE
/obj/machinery/power/proc/draw_power(var/amount)
if(powernet)
return powernet.draw_power(amount)
return 0
/obj/machinery/power/proc/surplus()
if(powernet)
return powernet.avail-powernet.load
else
return 0
/obj/machinery/power/proc/avail()
if(powernet)
return powernet.avail
else
return 0
/obj/machinery/power/proc/viewload()
if(powernet)
return powernet.viewload
else
return 0
/obj/machinery/power/proc/disconnect_terminal(var/obj/machinery/power/terminal/term) // machines without a terminal will just return, no harm no fowl.
return
// connect the machine to a powernet if a node cable is present on the turf
/obj/machinery/power/proc/connect_to_network()
var/turf/T = src.loc
if(!T || !istype(T))
return 0
var/obj/structure/cable/C = T.get_cable_node() //check if we have a node cable on the machine turf, the first found is picked
if(!C || !C.powernet)
return 0
C.powernet.add_machine(src)
return 1
// remove and disconnect the machine from its current powernet
/obj/machinery/power/proc/disconnect_from_network()
if(!powernet)
return 0
powernet.remove_machine(src)
return 1
// attach a wire to a power machine - leads from the turf you are standing on
//almost never called, overwritten by all power machines but terminal and generator
/obj/machinery/power/attackby(obj/item/weapon/W, mob/user)
if(istype(W, /obj/item/stack/cable_coil))
var/obj/item/stack/cable_coil/coil = W
var/turf/T = user.loc
if(!T.is_plating() || !istype(T, /turf/simulated/floor))
return
if(get_dist(src, user) > 1)
return
coil.turf_place(T, user)
return
else
..()
return
// Power machinery should also connect/disconnect from the network.
/obj/machinery/power/default_unfasten_wrench(var/mob/user, var/obj/item/weapon/W, var/time = 20)
if((. = ..()))
if(anchored)
connect_to_network()
else
disconnect_from_network()
// Used for power spikes by the engine, has specific effects on different machines.
/obj/machinery/power/proc/overload(var/obj/machinery/power/source)
return
// Used by the grid checker upon receiving a power spike.
/obj/machinery/power/proc/do_grid_check()
return
/obj/machinery/power/proc/power_spike()
return
///////////////////////////////////////////
// Powernet handling helpers
//////////////////////////////////////////
//returns all the cables WITHOUT a powernet in neighbors turfs,
//pointing towards the turf the machine is located at
/obj/machinery/power/proc/get_connections()
. = list()
var/cdir
var/turf/T
for(var/card in cardinal)
T = get_step(loc,card)
cdir = get_dir(T,loc)
for(var/obj/structure/cable/C in T)
if(C.powernet) continue
if(C.d1 == cdir || C.d2 == cdir)
. += C
return .
//returns all the cables in neighbors turfs,
//pointing towards the turf the machine is located at
/obj/machinery/power/proc/get_marked_connections()
. = list()
var/cdir
var/turf/T
for(var/card in cardinal)
T = get_step(loc,card)
cdir = get_dir(T,loc)
for(var/obj/structure/cable/C in T)
if(C.d1 == cdir || C.d2 == cdir)
. += C
return .
//returns all the NODES (O-X) cables WITHOUT a powernet in the turf the machine is located at
/obj/machinery/power/proc/get_indirect_connections()
. = list()
for(var/obj/structure/cable/C in loc)
if(C.powernet) continue
if(C.d1 == 0) // the cable is a node cable
. += C
return .
///////////////////////////////////////////
// GLOBAL PROCS for powernets handling
//////////////////////////////////////////
// returns a list of all power-related objects (nodes, cable, junctions) in turf,
// excluding source, that match the direction d
// if unmarked==1, only return those with no powernet
/proc/power_list(var/turf/T, var/source, var/d, var/unmarked=0, var/cable_only = 0)
. = list()
var/reverse = d ? reverse_dir[d] : 0
for(var/AM in T)
if(AM == source) continue //we don't want to return source
if(!cable_only && istype(AM,/obj/machinery/power))
var/obj/machinery/power/P = AM
if(P.powernet == 0) continue // exclude APCs which have powernet=0
if(!unmarked || !P.powernet) //if unmarked=1 we only return things with no powernet
if(d == 0)
. += P
else if(istype(AM,/obj/structure/cable))
var/obj/structure/cable/C = AM
if(!unmarked || !C.powernet)
if(C.d1 == d || C.d2 == d || C.d1 == reverse || C.d2 == reverse )
. += C
return .
//remove the old powernet and replace it with a new one throughout the network.
/proc/propagate_network(var/obj/O, var/datum/powernet/PN)
//to_world_log("propagating new network")
var/list/worklist = list()
var/list/found_machines = list()
var/index = 1
var/obj/P = null
worklist+=O //start propagating from the passed object
while(index<=worklist.len) //until we've exhausted all power objects
P = worklist[index] //get the next power object found
index++
if( istype(P,/obj/structure/cable))
var/obj/structure/cable/C = P
if(C.powernet != PN) //add it to the powernet, if it isn't already there
PN.add_cable(C)
worklist |= C.get_connections() //get adjacents power objects, with or without a powernet
else if(P.anchored && istype(P,/obj/machinery/power))
var/obj/machinery/power/M = P
found_machines |= M //we wait until the powernet is fully propagates to connect the machines
else
continue
//now that the powernet is set, connect found machines to it
for(var/obj/machinery/power/PM in found_machines)
if(!PM.connect_to_network()) //couldn't find a node on its turf...
PM.disconnect_from_network() //... so disconnect if already on a powernet
//Merge two powernets, the bigger (in cable length term) absorbing the other
/proc/merge_powernets(var/datum/powernet/net1, var/datum/powernet/net2)
if(!net1 || !net2) //if one of the powernet doesn't exist, return
return
if(net1 == net2) //don't merge same powernets
return
//We assume net1 is larger. If net2 is in fact larger we are just going to make them switch places to reduce on code.
if(net1.cables.len < net2.cables.len) //net2 is larger than net1. Let's switch them around
var/temp = net1
net1 = net2
net2 = temp
//merge net2 into net1
for(var/obj/structure/cable/Cable in net2.cables) //merge cables
net1.add_cable(Cable)
if(!net2) return net1
for(var/obj/machinery/power/Node in net2.nodes) //merge power machines
if(!Node.connect_to_network())
Node.disconnect_from_network() //if somehow we can't connect the machine to the new powernet, disconnect it from the old nonetheless
return net1
//Determines how strong could be shock, deals damage to mob, uses power.
//M is a mob who touched wire/whatever
//power_source is a source of electricity, can be powercell, area, apc, cable, powernet or null
//source is an object caused electrocuting (airlock, grille, etc)
//No animations will be performed by this proc.
/proc/electrocute_mob(mob/living/M as mob, var/power_source, var/obj/source, var/siemens_coeff = 1.0)
if(istype(M.loc,/obj/mecha)) return 0 //feckin mechs are dumb
if(issilicon(M)) return 0 //No more robot shocks from machinery
var/area/source_area
if(istype(power_source,/area))
source_area = power_source
power_source = source_area.get_apc()
if(istype(power_source,/obj/structure/cable))
var/obj/structure/cable/Cable = power_source
power_source = Cable.powernet
var/datum/powernet/PN
var/obj/item/weapon/cell/cell
if(istype(power_source,/datum/powernet))
PN = power_source
else if(istype(power_source,/obj/item/weapon/cell))
cell = power_source
else if(istype(power_source,/obj/machinery/power/apc))
var/obj/machinery/power/apc/apc = power_source
cell = apc.cell
if (apc.terminal)
PN = apc.terminal.powernet
else if (!power_source)
return 0
else
log_admin("ERROR: /proc/electrocute_mob([M], [power_source], [source]): wrong power_source")
return 0
//Triggers powernet warning, but only for 5 ticks (if applicable)
//If following checks determine user is protected we won't alarm for long.
if(PN)
PN.trigger_warning(5)
if(istype(M,/mob/living/carbon/human))
var/mob/living/carbon/human/H = M
if(H.species.siemens_coefficient <= 0)
return
if(H.gloves)
var/obj/item/clothing/gloves/G = H.gloves
if(G.siemens_coefficient == 0) return 0 //to avoid spamming with insulated glvoes on
/*CHOMP Edit: Phorochem removed.
//Phorochemistry DM: Allows chemicalresistant shocking -Radiantflash
for(var/datum/reagent/phororeagent/R in M.reagents.reagent_list)
if(R.id == "fulguracin")
to_chat(M, "<span class='notice'>Your hairs stand up, but you resist the shock for the most part</span>")
return 0 //no shock for you
*/
//Checks again. If we are still here subject will be shocked, trigger standard 20 tick warning
//Since this one is longer it will override the original one.
if(PN)
PN.trigger_warning()
if (!cell && !PN)
return 0
var/PN_damage = 0
var/cell_damage = 0
if (PN)
PN_damage = PN.get_electrocute_damage()
if (cell)
cell_damage = cell.get_electrocute_damage()
var/shock_damage = 0
if (PN_damage>=cell_damage)
power_source = PN
shock_damage = PN_damage
else
power_source = cell
shock_damage = cell_damage
var/drained_hp = M.electrocute_act(shock_damage, source, siemens_coeff) //zzzzzzap!
var/drained_energy = drained_hp*20
if (source_area)
source_area.use_power_oneoff(drained_energy/CELLRATE, EQUIP)
else if (istype(power_source,/datum/powernet))
var/drained_power = drained_energy/CELLRATE
drained_power = PN.draw_power(drained_power)
else if (istype(power_source, /obj/item/weapon/cell))
cell.use(drained_energy)
return drained_energy