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2fd2f962382bc8c0b6e8d06d63238f3b9ff11ba9
Yogstation/code/datums/mutations.dm
phil235 2fd2f96238 Simplified update_mutations_overlay(), we no longer rebuild the entire mutation layer with all mutations every time we get or lose a mutation. I reintroduced in on_acquiring and on_losing some code similar to the old lose_indication gain_indication procs. 
Fixed lesser form changeling, when humanized via dna injector, the ling no longer keeps its Human Form power.

Simplified the racemut trick in humanize() and monkeyize().

Dna now gets qdel'd, just like reagents, when the mob gets qdel'd.

Some tiny fixes here and there.

Added a changelog.
2015-09-22 02:14:37 +02:00

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/var/global/list/mutations_list = list()
/datum/mutation/
var/name
/datum/mutation/New()
mutations_list[name] = src
/datum/mutation/human
var/dna_block
var/quality
var/get_chance = 100
var/lowest_value = 256 * 8
var/text_gain_indication = ""
var/text_lose_indication = ""
var/list/visual_indicators = list()
var/layer_used = MUTATIONS_LAYER //which mutation layer to use
var/list/species_allowed = list() //to restrict mutation to only certain species
var/health_req //minimum health required to acquire the mutation
/datum/mutation/human/proc/force_give(mob/living/carbon/human/owner)
set_block(owner)
. = on_acquiring(owner)
/datum/mutation/human/proc/force_lose(mob/living/carbon/human/owner)
set_block(owner, 0)
. = on_losing(owner)
/datum/mutation/human/proc/set_se(se_string, on = 1)
if(!se_string || lentext(se_string) < DNA_STRUC_ENZYMES_BLOCKS * DNA_BLOCK_SIZE) return
var/before = copytext(se_string, 1, ((dna_block - 1) * DNA_BLOCK_SIZE) + 1)
var/injection = num2hex(on ? rand(lowest_value, (256 * 16) - 1) : rand(0, lowest_value - 1), DNA_BLOCK_SIZE)
var/after = copytext(se_string, (dna_block * DNA_BLOCK_SIZE) + 1, 0)
return before + injection + after
/datum/mutation/human/proc/set_block(mob/living/carbon/owner, on = 1)
if(owner && owner.has_dna())
owner.dna.struc_enzymes = set_se(owner.dna.struc_enzymes, on)
/datum/mutation/human/proc/check_block_string(se_string)
if(!se_string || lentext(se_string) < DNA_STRUC_ENZYMES_BLOCKS * DNA_BLOCK_SIZE) return 0
if(hex2num(getblock(se_string, dna_block)) >= lowest_value)
return 1
/datum/mutation/human/proc/check_block(mob/living/carbon/human/owner)
if(check_block_string(owner.dna.struc_enzymes))
if(prob(get_chance))
. = on_acquiring(owner)
else
. = on_losing(owner)
/datum/mutation/human/proc/on_acquiring(mob/living/carbon/human/owner)
if(!owner || !istype(owner) || (src in owner.dna.mutations))
return 1
if(species_allowed.len && !species_allowed.Find(owner.dna.species.id))
return 1
if(health_req && owner.health < health_req)
return 1
owner.dna.mutations.Add(src)
if(text_gain_indication)
owner << text_gain_indication
if(visual_indicators.len)
var/list/mut_overlay = list(get_visual_indicator(owner))
if(owner.overlays_standing[layer_used])
mut_overlay = owner.overlays_standing[layer_used]
mut_overlay |= get_visual_indicator(owner)
owner.remove_overlay(layer_used)
owner.overlays_standing[layer_used] = mut_overlay
owner.apply_overlay(layer_used)
/datum/mutation/human/proc/get_visual_indicator(mob/living/carbon/human/owner)
return
/datum/mutation/human/proc/on_attack_hand(mob/living/carbon/human/owner, atom/target)
return
/datum/mutation/human/proc/on_ranged_attack(mob/living/carbon/human/owner, atom/target)
return
/datum/mutation/human/proc/on_move(mob/living/carbon/human/owner, new_loc)
return
/datum/mutation/human/proc/on_life(mob/living/carbon/human/owner)
return
/datum/mutation/human/proc/on_losing(mob/living/carbon/human/owner)
if(owner && istype(owner) && (owner.dna.mutations.Remove(src)))
if(text_lose_indication)
owner << text_lose_indication
if(visual_indicators.len)
var/list/mut_overlay = list()
if(owner.overlays_standing[layer_used])
mut_overlay = owner.overlays_standing[layer_used]
owner.remove_overlay(layer_used)
mut_overlay.Remove(get_visual_indicator(owner))
owner.overlays_standing[layer_used] = mut_overlay
owner.apply_overlay(layer_used)
return 0
return 1
/datum/mutation/human/proc/say_mod(message)
if(message)
return message
/datum/mutation/human/proc/get_spans()
return list()
/datum/mutation/human/hulk
name = "Hulk"
quality = POSITIVE
get_chance = 15
lowest_value = 256 * 12
text_gain_indication = "<span class='notice'>Your muscles hurt!</span>"
species_allowed = list("human") //no skeleton/lizard hulk
health_req = 25
/datum/mutation/human/hulk/New()
..()
visual_indicators |= image("icon"='icons/effects/genetics.dmi', "icon_state"="hulk_f_s", "layer"=-MUTATIONS_LAYER)
visual_indicators |= image("icon"='icons/effects/genetics.dmi', "icon_state"="hulk_m_s", "layer"=-MUTATIONS_LAYER)
/datum/mutation/human/hulk/on_acquiring(mob/living/carbon/human/owner)
if(..())
return
var/status = CANSTUN | CANWEAKEN | CANPARALYSE | CANPUSH
owner.status_flags &= ~status
/datum/mutation/human/hulk/on_attack_hand(mob/living/carbon/human/owner, atom/target)
return target.attack_hulk(owner)
/datum/mutation/human/hulk/get_visual_indicator(mob/living/carbon/human/owner)
var/g = (owner.gender == FEMALE) ? 1 : 2
return visual_indicators[g]
/datum/mutation/human/hulk/on_life(mob/living/carbon/human/owner)
if(owner.health < 25)
on_losing(owner)
owner << "<span class='danger'>You suddenly feel very weak.</span>"
owner.Weaken(3)
owner.emote("collapse")
/datum/mutation/human/hulk/on_losing(mob/living/carbon/human/owner)
if(..())
return
owner.status_flags |= CANSTUN | CANWEAKEN | CANPARALYSE | CANPUSH
/datum/mutation/human/hulk/say_mod(message)
if(message)
message = "[uppertext(replacetext(message, ".", "!"))]!!"
return message
/datum/mutation/human/telekinesis
name = "Telekinesis"
quality = POSITIVE
get_chance = 20
lowest_value = 256 * 12
text_gain_indication = "<span class='notice'>You feel smarter!</span>"
/datum/mutation/human/telekinesis/New()
..()
visual_indicators |= image("icon"='icons/effects/genetics.dmi', "icon_state"="telekinesishead_s", "layer"=-MUTATIONS_LAYER)
/datum/mutation/human/telekinesis/get_visual_indicator(mob/living/carbon/human/owner)
return visual_indicators[1]
/datum/mutation/human/telekinesis/on_ranged_attack(mob/living/carbon/human/owner, atom/target)
target.attack_tk(owner)
/datum/mutation/human/cold_resistance
name = "Cold Resistance"
quality = POSITIVE
get_chance = 25
lowest_value = 256 * 12
text_gain_indication = "<span class='notice'>Your body feels warm!</span>"
/datum/mutation/human/cold_resistance/New()
..()
visual_indicators |= image("icon"='icons/effects/genetics.dmi', "icon_state"="fire_s", "layer"=-MUTATIONS_LAYER)
/datum/mutation/human/cold_resistance/get_visual_indicator(mob/living/carbon/human/owner)
return visual_indicators[1]
/datum/mutation/human/cold_resistance/on_life(mob/living/carbon/human/owner)
if(owner.getFireLoss())
if(prob(1))
owner.heal_organ_damage(0,1) //Is this really needed?
/datum/mutation/human/x_ray
name = "X Ray Vision"
quality = POSITIVE
get_chance = 25
lowest_value = 256 * 12
text_gain_indication = "<span class='notice'>The walls suddenly disappear!</span>"
/datum/mutation/human/x_ray/on_acquiring(mob/living/carbon/human/owner)
if(..())
return
on_life(owner)
/datum/mutation/human/x_ray/on_life(mob/living/carbon/human/owner)
owner.sight |= SEE_MOBS|SEE_OBJS|SEE_TURFS
owner.see_in_dark = 8
/datum/mutation/human/x_ray/on_losing(mob/living/carbon/human/owner)
if(..())
return
if((SEE_MOBS & owner.permanent_sight_flags) && (SEE_OBJS & owner.permanent_sight_flags) && (SEE_TURFS & owner.permanent_sight_flags)) //Xray flag combo
return
owner.see_in_dark = initial(owner.see_in_dark)
owner.sight = initial(owner.sight)
/datum/mutation/human/nearsight
name = "Near Sightness"
quality = MINOR_NEGATIVE
text_gain_indication = "<span class='danger'>You can't see very well.</span>"
/datum/mutation/human/nearsight/on_acquiring(mob/living/carbon/human/owner)
if(..())
return
owner.disabilities |= NEARSIGHT
/datum/mutation/human/nearsight/on_losing(mob/living/carbon/human/owner)
if(..())
return
owner.disabilities &= ~NEARSIGHT
/datum/mutation/human/epilepsy
name = "Epilepsy"
quality = NEGATIVE
text_gain_indication = "<span class='danger'>You get a headache.</span>"
/datum/mutation/human/epilepsy/on_life(mob/living/carbon/human/owner)
if((prob(1) && owner.paralysis < 1))
owner.visible_message("<span class='danger'>[owner] starts having a seizure!</span>", "<span class='userdanger'>You have a seizure!</span>")
owner.Paralyse(10)
owner.Jitter(1000)
spawn(90)
owner.jitteriness = 10
/datum/mutation/human/bad_dna
name = "Unstable DNA"
quality = NEGATIVE
text_gain_indication = "<span class='danger'>You feel strange.</span>"
/datum/mutation/human/bad_dna/on_acquiring(mob/living/carbon/human/owner)
owner << text_gain_indication
var/mob/new_mob
if(prob(95))
if(prob(50))
new_mob = randmutb(owner)
else
new_mob = randmuti(owner)
else
new_mob = randmutg(owner)
if(new_mob && ismob(new_mob))
owner = new_mob
. = owner
on_losing(owner)
/datum/mutation/human/cough
name = "Cough"
quality = MINOR_NEGATIVE
text_gain_indication = "<span class='danger'>You start coughing.</span>"
/datum/mutation/human/cough/on_life(mob/living/carbon/human/owner)
if((prob(5) && owner.paralysis <= 1))
owner.drop_item()
owner.emote("cough")
/datum/mutation/human/clumsy
name = "Clumsiness"
quality = MINOR_NEGATIVE
text_gain_indication = "<span class='danger'>You feel lightheaded.</span>"
/datum/mutation/human/clumsy/on_acquiring(mob/living/carbon/human/owner)
if(..()) return
owner.disabilities |= CLUMSY
/datum/mutation/human/clumsy/on_losing(mob/living/carbon/human/owner)
if(..())
return
owner.disabilities &= ~CLUMSY
/datum/mutation/human/tourettes
name = "Tourettes Syndrome"
quality = NEGATIVE
text_gain_indication = "<span class='danger'>You twitch.</span>"
/datum/mutation/human/tourettes/on_life(mob/living/carbon/human/owner)
if((prob(10) && owner.paralysis <= 1))
owner.Stun(10)
switch(rand(1, 3))
if(1)
owner.emote("twitch")
if(2 to 3)
owner.say("[prob(50) ? ";" : ""][pick("SHIT", "PISS", "FUCK", "CUNT", "COCKSUCKER", "MOTHERFUCKER", "TITS")]")
var/x_offset_old = owner.pixel_x
var/y_offset_old = owner.pixel_y
var/x_offset = owner.pixel_x + rand(-2,2)
var/y_offset = owner.pixel_y + rand(-1,1)
animate(owner, pixel_x = x_offset, pixel_y = y_offset, time = 1)
animate(owner, pixel_x = x_offset_old, pixel_y = y_offset_old, time = 1)
/datum/mutation/human/nervousness
name = "Nervousness"
quality = MINOR_NEGATIVE
text_gain_indication = "<span class='danger'>You feel nervous.</span>"
/datum/mutation/human/nervousness/on_life(mob/living/carbon/human/owner)
if(prob(10))
owner.stuttering = max(10, owner.stuttering)
/datum/mutation/human/deaf
name = "Deafness"
quality = NEGATIVE
text_gain_indication = "<span class='danger'>You can't seem to hear anything.</span>"
/datum/mutation/human/deaf/on_acquiring(mob/living/carbon/human/owner)
if(..()) return
owner.disabilities |= DEAF
/datum/mutation/human/deaf/on_losing(mob/living/carbon/human/owner)
if(..())
return
owner.disabilities &= ~DEAF
/datum/mutation/human/blind
name = "Blindness"
quality = NEGATIVE
text_gain_indication = "<span class='danger'>You can't seem to see anything.</span>"
/datum/mutation/human/blind/on_acquiring(mob/living/carbon/human/owner)
if(..()) return
owner.disabilities |= BLIND
/datum/mutation/human/blind/on_losing(mob/living/carbon/human/owner)
if(..())
return
owner.disabilities &= ~BLIND
/datum/mutation/human/race
name = "Monkified"
quality = NEGATIVE
/datum/mutation/human/race/on_acquiring(mob/living/carbon/human/owner)
if(..())
return
. = owner.monkeyize(TR_KEEPITEMS | TR_KEEPIMPLANTS | TR_KEEPORGANS | TR_KEEPDAMAGE | TR_KEEPVIRUS | TR_KEEPSE)
/datum/mutation/human/race/on_losing(mob/living/carbon/monkey/owner)
if(owner && istype(owner) && (owner.dna.mutations.Remove(src)))
. = owner.humanize(TR_KEEPITEMS | TR_KEEPIMPLANTS | TR_KEEPORGANS | TR_KEEPDAMAGE | TR_KEEPVIRUS | TR_KEEPSE)
/datum/mutation/human/stealth
name = "Cloak Of Darkness"
quality = POSITIVE
get_chance = 25
lowest_value = 256 * 12
text_gain_indication = "<span class='notice'>You begin to fade into the shadows.</span>"
text_lose_indication = "<span class='notice'>You become fully visible.</span>"
/datum/mutation/human/stealth/on_life(mob/living/carbon/human/owner)
var/turf/simulated/T = get_turf(owner)
if(!istype(T))
return
if(T.lighting_lumcount <= 2)
owner.alpha -= 25
else
if(!owner.dna.check_mutation(CHAMELEON))
owner.alpha = round(255 * 0.80)
/datum/mutation/human/stealth/on_losing(mob/living/carbon/human/owner)
if(..())
return
owner.alpha = 255
/datum/mutation/human/chameleon
name = "Chameleon"
quality = POSITIVE
get_chance = 20
lowest_value = 256 * 12
text_gain_indication = "<span class='notice'>You feel one with your surroundings.</span>"
text_lose_indication = "<span class='notice'>You feel oddly exposed.</span>"
/datum/mutation/human/chameleon/on_acquiring(mob/living/carbon/human/owner)
if(..())
return
owner.alpha = CHAMELEON_MUTATION_DEFAULT_TRANSPARENCY
/datum/mutation/human/chameleon/on_life(mob/living/carbon/human/owner)
owner.alpha = max(0, owner.alpha - 25)
/datum/mutation/human/chameleon/on_move(mob/living/carbon/human/owner)
owner.alpha = CHAMELEON_MUTATION_DEFAULT_TRANSPARENCY
/datum/mutation/human/chameleon/on_losing(mob/living/carbon/human/owner)
if(..())
return
owner.alpha = 255
/datum/mutation/human/wacky
name = "Wacky"
quality = MINOR_NEGATIVE
text_gain_indication = "<span class='sans'>You feel an off sensation in your voicebox.</span>"
text_lose_indication = "<span class='notice'>The off sensation passes.</span>"
/datum/mutation/human/wacky/get_spans()
return list(SPAN_SANS)
/datum/mutation/human/mute
name = "Mute"
quality = NEGATIVE
text_gain_indication = "<span class='danger'>You feel unable to express yourself at all.</span>"
text_lose_indication = "<span class='danger'>You feel able to speak freely again.</span>"
/datum/mutation/human/mute/on_acquiring(mob/living/carbon/human/owner)
if(..())
return
owner.disabilities |= MUTE
/datum/mutation/human/mute/on_losing(mob/living/carbon/human/owner)
if(..())
return
owner.disabilities &= ~MUTE
/datum/mutation/human/smile
name = "Smile"
quality = MINOR_NEGATIVE
text_gain_indication = "<span class='notice'>You feel so happy. Nothing can be wrong with anything. :)</span>"
text_lose_indication = "<span class='notice'>Everything is terrible again. :(</span>"
/datum/mutation/human/smile/say_mod(message)
if(message)
message = " [message] "
//Time for a friendly game of SS13
message = replacetext(message," stupid "," smart ")
message = replacetext(message," retard "," genius ")
message = replacetext(message," unrobust "," robust ")
message = replacetext(message," dumb "," smart ")
message = replacetext(message," awful "," great ")
message = replacetext(message," gay ",pick(" nice "," ok "," alright "))
message = replacetext(message," horrible "," fun ")
message = replacetext(message," terrible "," terribly fun ")
message = replacetext(message," terrifying "," wonderful ")
message = replacetext(message," gross "," cool ")
message = replacetext(message," disgusting "," amazing ")
message = replacetext(message," loser "," winner ")
message = replacetext(message," useless "," useful ")
message = replacetext(message," oh god "," cheese and crackers ")
message = replacetext(message," jesus "," gee wiz ")
message = replacetext(message," weak "," strong ")
message = replacetext(message," kill "," hug ")
message = replacetext(message," murder "," tease ")
message = replacetext(message," ugly "," beautiful ")
message = replacetext(message," douchbag "," nice guy ")
message = replacetext(message," whore "," lady ")
message = replacetext(message," nerd "," smart guy ")
message = replacetext(message," moron "," fun person ")
message = replacetext(message," IT'S LOOSE "," EVERYTHING IS FINE ")
message = replacetext(message," sex "," hug fight ")
message = replacetext(message," idiot "," genius ")
message = replacetext(message," fat "," thin ")
message = replacetext(message," beer "," water with ice ")
message = replacetext(message," drink "," water ")
message = replacetext(message," feminist "," empowered woman ")
message = replacetext(message," i hate you "," you're mean ")
message = replacetext(message," nigger "," african american ")
message = replacetext(message," jew "," jewish ")
message = replacetext(message," shit "," shiz ")
message = replacetext(message," crap "," poo ")
message = replacetext(message," slut "," tease ")
message = replacetext(message," ass "," butt ")
message = replacetext(message," damn "," dang ")
message = replacetext(message," fuck "," ")
message = replacetext(message," penis "," privates ")
message = replacetext(message," cunt "," privates ")
message = replacetext(message," dick "," jerk ")
message = replacetext(message," vagina "," privates ")
return trim(message)
/datum/mutation/human/unintelligable
name = "Unintelligable"
quality = NEGATIVE
text_gain_indication = "<span class='danger'>You can't seem to form any coherent thoughts!</span>"
text_lose_indication = "<span class='danger'>Your mind feels more clear.</span>"
/datum/mutation/human/unintelligable/say_mod(message)
if(message)
var/prefix=copytext(message,1,2)
if(prefix == ";")
message = copytext(message,2)
else if(prefix in list(":","#"))
prefix += copytext(message,2,3)
message = copytext(message,3)
else
prefix=""
var/list/words = text2list(message," ")
var/list/rearranged = list()
for(var/i=1;i<=words.len;i++)
var/cword = pick(words)
words.Remove(cword)
var/suffix = copytext(cword,length(cword)-1,length(cword))
while(length(cword)>0 && suffix in list(".",",",";","!",":","?"))
cword = copytext(cword,1 ,length(cword)-1)
suffix = copytext(cword,length(cword)-1,length(cword) )
if(length(cword))
rearranged += cword
message = "[prefix][uppertext(list2text(rearranged," "))]!!"
return message
/datum/mutation/human/swedish
name = "Swedish"
quality = MINOR_NEGATIVE
text_gain_indication = "<span class='notice'>You feel Swedish, however that works.</span>"
text_lose_indication = "<span class='notice'>The feeling of Swedishness passes.</span>"
/datum/mutation/human/swedish/say_mod(message)
if(message)
message = replacetext(message,"w","v")
if(prob(30))
message += " Bork[pick("",", bork",", bork, bork")]!"
return message
/datum/mutation/human/chav
name = "Chav"
quality = MINOR_NEGATIVE
text_gain_indication = "<span class='notice'>Ye feel like a reet prat like, innit?</span>"
text_lose_indication = "<span class='notice'>You no longer feel like being rude and sassy.</span>"
/datum/mutation/human/chav/say_mod(message)
if(message)
message = " [message] "
message = replacetext(message," looking at "," gawpin' at ")
message = replacetext(message," great "," bangin' ")
message = replacetext(message," man "," mate ")
message = replacetext(message," friend ",pick(" mate "," bruv "," bledrin "))
message = replacetext(message," what "," wot ")
message = replacetext(message," drink "," wet ")
message = replacetext(message," get "," giz ")
message = replacetext(message," what "," wot ")
message = replacetext(message," no thanks "," wuddent fukken do one ")
message = replacetext(message," i don't know "," wot mate ")
message = replacetext(message," no "," naw ")
message = replacetext(message," robust "," chin ")
message = replacetext(message," hi "," how what how ")
message = replacetext(message," hello "," sup bruv ")
message = replacetext(message," kill "," bang ")
message = replacetext(message," murder "," bang ")
message = replacetext(message," windows "," windies ")
message = replacetext(message," window "," windy ")
message = replacetext(message," break "," do ")
message = replacetext(message," your "," yer ")
message = replacetext(message," security "," coppers ")
return trim(message)
/datum/mutation/human/elvis
name = "Elvis"
quality = MINOR_NEGATIVE
text_gain_indication = "<span class='notice'>You feel pretty good, honeydoll.</span>"
text_lose_indication = "<span class='notice'>You feel a little less conversation would be great.</span>"
/datum/mutation/human/elvis/on_life(mob/living/carbon/human/owner)
switch(pick(1,2))
if(1)
if(prob(15))
var/list/dancetypes = list("swinging", "fancy", "stylish", "20'th century", "jivin'", "rock and roller", "cool", "salacious", "bashing", "smashing")
var/dancemoves = pick(dancetypes)
owner.visible_message("<b>[owner]</b> busts out some [dancemoves] moves!")
if(2)
if(prob(15))
owner.visible_message("<b>[owner]</b> [pick("jiggles their hips", "rotates their hips", "gyrates their hips", "taps their foot", "dances to an imaginary song", "jiggles their legs", "snaps their fingers")]!")
/datum/mutation/human/elvis/say_mod(message)
if(message)
message = " [message] "
message = replacetext(message," i'm not "," I aint ")
message = replacetext(message," girl ",pick(" honey "," baby "," baby doll "))
message = replacetext(message," man ",pick(" son "," buddy "," brother"," pal "," friendo "))
message = replacetext(message," out of "," outta ")
message = replacetext(message," thank you "," thank you, thank you very much ")
message = replacetext(message," what are you "," whatcha ")
message = replacetext(message," yes ",pick(" sure", "yea "))
message = replacetext(message," faggot "," square ")
message = replacetext(message," muh valids "," getting my kicks ")
return trim(message)
/datum/mutation/human/laser_eyes
name = "Laser Eyes"
quality = POSITIVE
dna_block = NON_SCANNABLE
text_gain_indication = "<span class='notice'>You feel pressure building up behind your eyes.</span>"
layer_used = FRONT_MUTATIONS_LAYER
/datum/mutation/human/laser_eyes/New()
..()
visual_indicators |= image("icon"='icons/effects/genetics.dmi', "icon_state"="lasereyes_s", "layer"=-FRONT_MUTATIONS_LAYER)
/datum/mutation/human/laser_eyes/get_visual_indicator(mob/living/carbon/human/owner)
return visual_indicators[1]
/datum/mutation/human/laser_eyes/on_ranged_attack(mob/living/carbon/human/owner, atom/target)
if(owner.a_intent == "harm")
owner.LaserEyes(target)
/mob/living/carbon/proc/update_mutations_overlay()
return
/mob/living/carbon/human/update_mutations_overlay()
for(var/datum/mutation/human/CM in dna.mutations)
if(CM.species_allowed.len && !CM.species_allowed.Find(dna.species.id))
CM.force_lose(src) //shouldn't have that mutation at all
continue
if(CM.visual_indicators.len)
var/list/mut_overlay = list()
if(overlays_standing[CM.layer_used])
mut_overlay = overlays_standing[CM.layer_used]
var/image/V = CM.get_visual_indicator(src)
if(!mut_overlay.Find(V)) //either we lack the visual indicator or we have the wrong one
remove_overlay(CM.layer_used)
for(var/image/I in CM.visual_indicators)
mut_overlay.Remove(I)
mut_overlay |= V
overlays_standing[CM.layer_used] = mut_overlay
apply_overlay(CM.layer_used)
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