/*
field_generator energy level display
* The icon used for the field_generator need to have 'num_energy_levels' number of icon states
* named 'Field_Gen +p[num]' where 'num' ranges from 1 to 'num_energy_levels'
* The energy level is displayed using overlays. The current displayed energy level is stored in 'energylevel'.
* The overlay in use and the energylevel variable must be kept in sync. A energylevel equal to 0 means that
* no energy level overlay is currently in the overlays list.
* -Aygar
*/
#define FIELD_GENERATOR_MAX_ENERGY 125
#define FG_UNSECURED 0
#define FG_SECURED 1
#define FG_WELDED 2
#define FG_OFFLINE 0
#define FG_CHARGING 1
#define FG_ONLINE 2
/obj/machinery/field/generator
name = "Field Generator"
desc = "A large thermal battery that projects a high amount of energy when powered."
icon = 'icons/obj/machines/field_generator.dmi'
icon_state = "Field_Gen"
density = TRUE
power_state = NO_POWER_USE
max_integrity = 500
//100% immune to lasers and energy projectiles since it absorbs their energy.
armor = list(MELEE = 25, BULLET = 10, LASER = 100, ENERGY = 100, BOMB = 0, RAD = 0, FIRE = 50, ACID = 70)
var/const/num_energy_levels = 6 // Total number of power level icon has
var/energy_level = 0
var/active = FG_OFFLINE
var/energy = 20 // Current amount of energy
var/state = FG_UNSECURED
var/warming_up = 0
var/list/obj/machinery/field/containment/fields
var/list/obj/machinery/field/generator/connected_gens
var/clean_up = FALSE
/obj/machinery/field/generator/update_overlays()
. = ..()
if(warming_up)
. += "+a[warming_up]"
if(length(fields))
. += "+on"
if(energy_level)
. += "+p[energy_level]"
/obj/machinery/field/generator/Initialize(mapload)
. = ..()
fields = list()
connected_gens = list()
/obj/machinery/field/generator/process()
if(active == FG_ONLINE)
calc_energy()
/**
* Gets a list of generators that form a field that is enclosing a given singularity, if such a field exists.
*
* Arguments:
* * _dir - The direction in which we are currently going
* * singulo - The singularity we are looking to contain
* * containment_gens - A list of generators which is the portion of the potential result we have so far.
*/
/obj/machinery/field/generator/proc/find_containment_gens(_dir, obj/singularity/singulo, list/containment_gens = list())
// We can't go in a direction that doesn't exist
if(!dir)
return list()
containment_gens |= src
// This is used to evaluate a path before returning it. We don't want to stop after the first dead end.
var/list/temp_gens = list()
for(var/obj/machinery/field/generator/gen in connected_gens)
// We don't ever want to do anything with the generator behind us so this check comes first
if(get_dir(src, gen) == turn(_dir, 180))
continue
// If we completed a full circle and it contains the singularity return it. Otherwise continue
if(gen in containment_gens)
if(singulo.in_containment(containment_gens))
return containment_gens
continue
// Go right if we can, forward if we can't go right, and left if we can't go forward
if(get_dir(src, gen) == turn(_dir, -90))
temp_gens = gen.find_containment_gens(turn(_dir, -90), singulo, containment_gens)
if(length(temp_gens))
return temp_gens
if(get_dir(src, gen) == _dir)
temp_gens = gen.find_containment_gens(_dir, singulo, containment_gens)
if(length(temp_gens))
return temp_gens
if(get_dir(src, gen) == turn(_dir, 90))
temp_gens = gen.find_containment_gens(turn(_dir, 90), singulo, containment_gens)
if(length(temp_gens))
return temp_gens
// We got to a dead end, temp_gens should be empty here.
return temp_gens
/obj/machinery/field/generator/attack_hand(mob/user)
if(state == FG_WELDED)
if(get_dist(src, user) <= 1)//Need to actually touch the thing to turn it on
if(active >= FG_CHARGING)
to_chat(user, "You are unable to turn off [src] once it is online!")
return 1
else
user.visible_message("[user] turns on [src].", \
"You turn on [src].", \
"You hear heavy droning.")
turn_on()
investigate_log("activated by [user.key].", INVESTIGATE_SINGULO)
add_fingerprint(user)
else
to_chat(user, "[src] needs to be firmly secured to the floor first!")
/obj/machinery/field/generator/wrench_act(mob/living/user, obj/item/W)
. = TRUE
if(active)
to_chat(user, "[src] needs to be off!")
return
switch(state)
if(FG_UNSECURED)
if(isinspace()) return
state = FG_SECURED
W.play_tool_sound(W, 75)
user.visible_message("[user.name] secures [name] to the floor.", \
"You secure the external reinforcing bolts to the floor.", \
"You hear ratchet.")
anchored = TRUE
if(FG_SECURED)
state = FG_UNSECURED
W.play_tool_sound(W, 75)
user.visible_message("[user.name] unsecures [name] reinforcing bolts from the floor.", \
"You undo the external reinforcing bolts.", \
"You hear ratchet.")
anchored = FALSE
if(FG_WELDED)
to_chat(user, "[src] needs to be unwelded from the floor!")
/obj/machinery/field/generator/welder_act(mob/user, obj/item/I)
. = TRUE
if(state == FG_UNSECURED)
to_chat(user, "[src] needs to be wrenched to the floor!")
return
if(!I.tool_use_check(user, 0))
return
if(state == FG_SECURED)
WELDER_ATTEMPT_FLOOR_WELD_MESSAGE
else if(state == FG_WELDED)
WELDER_ATTEMPT_FLOOR_SLICE_MESSAGE
if(I.use_tool(src, user, 20, volume = I.tool_volume))
if(state == FG_SECURED)
WELDER_FLOOR_WELD_SUCCESS_MESSAGE
state = FG_WELDED
else if(state == FG_WELDED)
WELDER_FLOOR_SLICE_SUCCESS_MESSAGE
state = FG_SECURED
/obj/machinery/field/generator/emp_act()
return 0
/obj/machinery/field/generator/attack_animal(mob/living/simple_animal/M)
if(M.environment_smash & ENVIRONMENT_SMASH_RWALLS && active == FG_OFFLINE && state != FG_UNSECURED)
state = FG_UNSECURED
anchored = FALSE
M.visible_message("[M] rips [src] free from its moorings!")
else
..()
if(!anchored)
step(src, get_dir(M, src))
/obj/machinery/field/generator/blob_act(obj/structure/blob/B)
if(active)
return 0
else
..()
/obj/machinery/field/generator/bullet_act(obj/item/projectile/Proj)
if(Proj.flag != BULLET && !Proj.nodamage)
energy = min(energy + Proj.damage, FIELD_GENERATOR_MAX_ENERGY)
check_energy_level()
return 0
/obj/machinery/field/generator/Destroy()
cleanup()
return ..()
/obj/machinery/field/generator/proc/check_energy_level()
var/new_level = round(num_energy_levels * energy / FIELD_GENERATOR_MAX_ENERGY)
if(new_level != energy_level)
energy_level = new_level
update_icon()
/obj/machinery/field/generator/proc/turn_off()
active = FG_OFFLINE
spawn(1)
cleanup()
while(warming_up > 0 && !active)
sleep(50)
warming_up--
update_icon()
/obj/machinery/field/generator/proc/turn_on()
active = FG_CHARGING
spawn(1)
while(warming_up < 3 && active)
sleep(50)
warming_up++
update_icon()
if(warming_up >= 3)
start_fields()
/obj/machinery/field/generator/proc/calc_energy()
var/power_draw = 2 + length(fields)
if(draw_power(round(power_draw / 2, 1)))
spread_energy()
check_energy_level()
return TRUE
else
visible_message("[src] shuts down!", "You hear something shutting down.")
turn_off()
investigate_log("ran out of energy and deactivated",INVESTIGATE_SINGULO)
energy = 0
check_energy_level()
return FALSE
/**
* Draws power. If there isn't enough energy to sustain the draw, draw from connected generators, up to 3 generators away.
* We never do a 180, so at most we should be going around 270 degrees, and never loop.
*
* Arguments:
** draw - Amount of energy needed to sustain powerdraw during this cycle
** failsafe - Current depth of the recursion. We don't let this go above 3.
** last - should be src of the previous call, we check against this to prevent going back and forth between two field generators.
*/
/obj/machinery/field/generator/proc/draw_power(draw = 0, failsafe = 0, obj/machinery/field/generator/last = null)
if(failsafe >= 3)// Asking at most 3 gens away so we can't loop.
return 0
else
failsafe++
if(energy >= draw)// We have enough energy
energy -= draw
return 1
else//Need more energy
draw -= energy
energy = 0
for(var/CG in connected_gens)
var/obj/machinery/field/generator/FG = CG
if(FG == last)// We just asked you
continue
else// We are askin another for energy
if(FG.draw_power(draw, failsafe, src))
return 1
else
return 0
/// Sends energy to every neighbour that has less energy
/obj/machinery/field/generator/proc/spread_energy()
for(var/obj/machinery/field/generator/gen as anything in connected_gens)
if(energy > gen.energy + 3)
var/diff = min(energy - gen.energy, FIELD_GENERATOR_MAX_ENERGY - gen.energy)// We don't want to delete energy
gen.energy += diff / 2
energy -= diff / 2
/obj/machinery/field/generator/proc/start_fields()
if(state != FG_WELDED || !anchored)
turn_off()
return
spawn(1)
setup_field(1)
spawn(2)
setup_field(2)
spawn(3)
setup_field(4)
spawn(4)
setup_field(8)
spawn(5)
active = FG_ONLINE
/obj/machinery/field/generator/proc/setup_field(NSEW)
var/turf/T = loc
if(!istype(T))
return 0
var/obj/machinery/field/generator/G = null
var/steps = 0
if(!NSEW)//Make sure its ran right
return 0
for(var/dist in 0 to 7) // checks out to 8 tiles away for another generator
T = get_step(T, NSEW)
if(T.density)//We cant shoot a field though this
return 0
G = locate(/obj/machinery/field/generator) in T
if(G)
steps -= 1
if(!G.active)
return 0
break
for(var/TC in T.contents)
var/atom/A = TC
if(ismob(A))
continue
if(A.density)
return 0
steps++
if(!G)
return 0
T = loc
for(var/dist in 0 to steps) // creates each field tile
var/field_dir = get_dir(T, get_step(G.loc, NSEW))
T = get_step(T, NSEW)
if(!locate(/obj/machinery/field/containment) in T)
var/obj/machinery/field/containment/CF = new/obj/machinery/field/containment()
CF.set_master(src, G)
CF.loc = T
CF.dir = field_dir
fields += CF
G.fields += CF
for(var/mob/living/L in T)
CF.Crossed(L, null)
connected_gens |= G
G.connected_gens |= src
update_icon()
/obj/machinery/field/generator/proc/cleanup()
clean_up = TRUE
for(var/F in fields)
qdel(F)
for(var/CG in connected_gens)
var/obj/machinery/field/generator/FG = CG
FG.connected_gens -= src
if(!FG.clean_up)//Makes the other gens clean up and shutdown as well
FG.turn_off()
connected_gens -= FG
clean_up = FALSE
update_icon()
//This is here to help fight the "hurr durr, release singulo cos nobody will notice before the
//singulo eats the evidence". It's not fool-proof but better than nothing.
//I want to avoid using global variables.
INVOKE_ASYNC(src, PROC_REF(admin_alert))
/obj/machinery/field/generator/proc/admin_alert()
var/temp = TRUE //stops spam
for(var/thing in GLOB.singularities)
var/obj/singularity/O = thing
if(O.last_warning && temp && atoms_share_level(O, src))
if((world.time - O.last_warning) > 50) //to stop message-spam
temp = FALSE
// To the person who asks "Hey affected, why are you using this massive operator when you can use AREACOORD?" Well, ill tell you
// get_area_name is fucking broken and uses a for(x in world) search
// It doesnt even work, is expensive, and returns 0
// Im not refactoring one thing which could risk breaking all admin location logs
// Fight me
// [src ? "[get_location_name(src, TRUE)] [COORD(src)]" : "nonexistent location"] [ADMIN_JMP(src)] works much better and actually works at all
// Oh and yes, this exact comment was pasted from the exact same thing I did to tcomms code. Dont at me.
message_admins("A singularity exists and a containment field has failed on the same Z-Level. Singulo location: [O ? "[get_location_name(O, TRUE)] [COORD(O)]" : "nonexistent location"] [ADMIN_JMP(O)] | Field generator location: [src ? "[get_location_name(src, TRUE)] [COORD(src)]" : "nonexistent location"] [ADMIN_JMP(src)]")
investigate_log("has failed whilst a singulo exists.", INVESTIGATE_SINGULO)
O.last_warning = world.time
/obj/machinery/field/generator/shock_field(mob/living/user)
if(length(fields))
..()
/obj/machinery/field/generator/bump_field(atom/movable/AM as mob|obj)
if(length(fields))
..()
#undef FG_UNSECURED
#undef FG_SECURED
#undef FG_WELDED
#undef FG_OFFLINE
#undef FG_CHARGING
#undef FG_ONLINE
#undef FIELD_GENERATOR_MAX_ENERGY