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GS13NG/code/datums/diseases/advance/symptoms/genetics.dm
2020-01-20 14:09:22 +02:00

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/*
//////////////////////////////////////
DNA Saboteur
Very noticable.
Lowers resistance tremendously.
No changes to stage speed.
Decreases transmittablity tremendously.
Fatal Level.
Bonus
Cleans the DNA of a person and then randomly gives them a trait.
//////////////////////////////////////
*/
/datum/symptom/genetic_mutation
name = "Deoxyribonucleic Acid Saboteur"
desc = "The virus bonds with the DNA of the host, causing damaging mutations until removed."
stealth = -2
resistance = -3
stage_speed = 0
transmittable = -3
level = 6
severity = 4
var/list/possible_mutations
var/archived_dna = null
base_message_chance = 50
symptom_delay_min = 60
symptom_delay_max = 120
var/no_reset = FALSE
threshold_desc = list(
"Resistance 8" = "The negative and mildly negative mutations caused by the virus are mutadone-proof (but will still be undone when the virus is cured if the resistance 14 threshold is not met).",
"Resistance 14" = "The host's genetic alterations are not undone when the virus is cured.",
"Stage Speed 10" = "The virus activates dormant mutations at a much faster rate.",
"Stealth 5" = "Only activates negative mutations in hosts."
)
/datum/symptom/genetic_mutation/Activate(datum/disease/advance/A)
if(!..())
return
var/mob/living/carbon/C = A.affected_mob
if(!C.has_dna())
return
switch(A.stage)
if(4, 5)
to_chat(C, "<span class='warning'>[pick("Your skin feels itchy.", "You feel light headed.")]</span>")
C.dna.remove_mutation_group(possible_mutations)
for(var/i in 1 to power)
C.randmut(possible_mutations)
// Archive their DNA before they were infected.
/datum/symptom/genetic_mutation/Start(datum/disease/advance/A)
if(!..())
return
if(A.properties["stealth"] >= 5) //don't restore dna after curing
no_reset = TRUE
if(A.properties["stage_rate"] >= 10) //mutate more often
symptom_delay_min = 20
symptom_delay_max = 60
if(A.properties["resistance"] >= 8) //mutate twice
power = 2
possible_mutations = (GLOB.bad_mutations | GLOB.not_good_mutations) - GLOB.mutations_list[RACEMUT]
var/mob/living/carbon/M = A.affected_mob
if(M)
if(!M.has_dna())
return
archived_dna = M.dna.struc_enzymes
// Give them back their old DNA when cured.
/datum/symptom/genetic_mutation/End(datum/disease/advance/A)
if(!..())
return
if(!no_reset)
var/mob/living/carbon/M = A.affected_mob
if(M && archived_dna)
if(!M.has_dna())
return
M.dna.struc_enzymes = archived_dna
M.domutcheck()