Such vines

So mutation

code/modules/events/spacevine.dm

@@ -17,6 +17,107 @@
 		spawn(0)	new/obj/effect/spacevine_controller(T) //spawn a controller at turf
 
 
+/datum/spacevine_mutation
+	var/name = ""
+	var/severity = 1
+	var/hue
+
+/datum/spacevine_mutation/proc/process_mutation(obj/effect/spacevine/holder)
+	return
+
+/datum/spacevine_mutation/proc/on_birth(obj/effect/spacevine/holder)
+	return
+
+/datum/spacevine_mutation/proc/on_grow(obj/effect/spacevine/holder)
+	return
+
+/datum/spacevine_mutation/proc/on_death(obj/effect/spacevine/holder)
+	return
+
+/datum/spacevine_mutation/proc/on_hit(obj/effect/spacevine/holder, mob/hitter, obj/item/I)
+	return
+
+/datum/spacevine_mutation/proc/on_cross(obj/effect/spacevine/holder, mob/crosser)
+	return
+
+/datum/spacevine_mutation/oxy_eater
+	name = "oxygen consumption"
+	hue = "#ffff00"
+
+/datum/spacevine_mutation/transparency
+	name = "oxygen consumption"
+	hue = ""
+
+/datum/spacevine_mutation/transparency/on_grow(obj/effect/spacevine/holder)
+	holder.SetOpacity(0)
+	holder.alpha = 125
+
+/datum/spacevine_mutation/oxy_eater/process_mutation(obj/effect/spacevine/holder)
+	var/turf/simulated/floor/T = holder.loc
+	var/datum/gas_mixture/GM = T.air
+	GM.oxygen = max(0, GM.oxygen - severity * 0.5 * holder.energy)
+
+/datum/spacevine_mutation/nitro_eater
+	name = "nitrogen consumption"
+	hue = "#ffff00"
+
+/datum/spacevine_mutation/nitro_eater/process_mutation(obj/effect/spacevine/holder)
+	var/turf/simulated/floor/T = holder.loc
+	var/datum/gas_mixture/GM = T.air
+	GM.nitrogen = max(0, GM.nitrogen - severity * 0.5 * holder.energy)
+
+/datum/spacevine_mutation/carbondioxide_eater
+	name = "CO2 consumption"
+	hue = "#00ffff"
+
+/datum/spacevine_mutation/carbondioxide_eater/process_mutation(obj/effect/spacevine/holder)
+	var/turf/simulated/floor/T = holder.loc
+	var/datum/gas_mixture/GM = T.air
+	GM.carbon_dioxide = max(0, GM.carbon_dioxide - severity * 0.5 * holder.energy)
+
+/datum/spacevine_mutation/plasma_eater
+	name = "toxins consumption"
+	hue = "#dd00dd"
+
+/datum/spacevine_mutation/plasma_eater/process_mutation(obj/effect/spacevine/holder)
+	var/turf/simulated/floor/T = holder.loc
+	var/datum/gas_mixture/GM = T.air
+	GM.toxins = max(0, GM.toxins - severity * 0.5 * holder.energy)
+
+/datum/spacevine_mutation/thorns
+	name = "thorns"
+	hue = "#666666"
+
+/datum/spacevine_mutation/thorns/on_cross(obj/effect/spacevine/holder, crosser)
+	if(isliving(crosser) && prob(severity))
+		var/mob/living/M = crosser
+		M.adjustBruteLoss(5)
+		M << "<span class='alert'>You cut yourself on all these vines.</span>"
+
+/datum/spacevine_mutation/thorns/on_hit(obj/effect/spacevine/holder, hitter)
+	if(ismob(hitter) && prob(severity))
+		var/mob/living/M = hitter
+		M.adjustBruteLoss(5)
+		M << "<span class='alert'>You cut yourself on all these vines.</span>"
+
+/datum/spacevine_mutation/woodening
+	name = "hardening"
+	hue = "#997700"
+
+/datum/spacevine_mutation/woodening/on_grow(obj/effect/spacevine/holder)
+	if(holder.energy)
+		holder.density = 1
+
+/datum/spacevine_mutation/woodening/on_hit(obj/effect/spacevine/holder, mob/hitter, obj/item/I)
+	if(hitter)
+		var/chance
+		if(I)
+			chance = I.force
+		else
+			chance = 4
+		if(prob(chance))
+			qdel(holder)
+	return 1
 
 
 // SPACE VINES (Note that this code is very similar to Biomass code)
@@ -32,19 +133,35 @@
 	var/energy = 0
 	var/obj/effect/spacevine_controller/master = null
 	var/mob/living/buckled_mob
+	var/list/mutations = list()
 
 	New()
 		return
 
 	Destroy()
+		for(var/datum/spacevine_mutation/SM in mutations)
+			SM.on_death(src)
 		if(master)
 			master.vines -= src
 			master.growth_queue -= src
+			if(!master.vines.len)
+				var/obj/item/seeds/kudzuseed/KZ = new(loc)
+				KZ.mutations |= mutations
 		..()
 
 
 /obj/effect/spacevine/attackby(obj/item/weapon/W as obj, mob/user as mob)
 	if (!W || !user || !W.type) return
+
+	var/override = 0
+
+	for(var/datum/spacevine_mutation/SM in mutations)
+		override += SM.on_hit(src, user)
+
+	if(override)
+		..()
+		return
+
 	switch(W.type)
 		if(/obj/item/weapon/circular_saw) qdel(src)
 		if(/obj/item/weapon/kitchen/utensil/knife) qdel(src)
@@ -70,12 +187,20 @@
 		//Plant-b-gone damage is handled in its entry in chemistry-reagents.dm
 	..()
 
+/obj/effect/spacevine/Crossed(mob/crosser)
+	if(isliving(crosser))
+		for(var/datum/spacevine_mutation/SM in mutations)
+			SM.on_cross(src, crosser)
 
 /obj/effect/spacevine/attack_hand(mob/user as mob)
+	for(var/datum/spacevine_mutation/SM in mutations)
+		SM.on_hit(src, user)
 	manual_unbuckle(user)
 
 
 /obj/effect/spacevine/attack_paw(mob/user as mob)
+	for(var/datum/spacevine_mutation/SM in mutations)
+		SM.on_hit(src, user)
 	manual_unbuckle(user)
 
 /obj/effect/spacevine/proc/unbuckle()
@@ -115,25 +240,42 @@
 	var/list/growth_queue = list()
 	var/reached_collapse_size
 	var/reached_slowdown_size
+	var/list/mutations_list = list()
+	var/mutativness = 1
 	//What this does is that instead of having the grow minimum of 1, required to start growing, the minimum will be 0,
 	//meaning if you get the spacevines' size to something less than 20 plots, it won't grow anymore.
 
-	New()
+	New(loc, list/muts, mttv)
 		if(!istype(src.loc,/turf/simulated/floor))
 			qdel(src)
 
-		spawn_spacevine_piece(src.loc)
+		spawn_spacevine_piece(src.loc, , muts)
 		processing_objects.Add(src)
+		init_subtypes(/datum/spacevine_mutation/, mutations_list)
+		if(mttv != null)
+			mutativness = mttv
 
 	Destroy()
 		processing_objects.Remove(src)
 		..()
 
-	proc/spawn_spacevine_piece(var/turf/location)
+	proc/spawn_spacevine_piece(var/turf/location, obj/effect/spacevine/parent, list/muts)
 		var/obj/effect/spacevine/SV = new(location)
 		growth_queue += SV
 		vines += SV
 		SV.master = src
+		if(muts && muts.len)
+			SV.mutations |= muts
+		if(parent)
+			SV.mutations |= parent.mutations
+			SV.color = parent.color
+			if(prob(mutativness))
+				SV.mutations |= pick(mutations_list)
+				var/datum/spacevine_mutation/randmut = pick(SV.mutations)
+				SV.color = randmut.hue
+
+		for(var/datum/spacevine_mutation/SM in SV.mutations)
+			SM.on_birth(SV)
 
 	process()
 		if(!vines)
@@ -165,6 +307,8 @@
 			i++
 			queue_end += SV
 			growth_queue -= SV
+			for(var/datum/spacevine_mutation/SM in SV.mutations)
+				SM.process_mutation(SV)
 			if(SV.energy < 2) //If tile isn't fully grown
 				if(prob(20))
 					SV.grow()
@@ -190,6 +334,9 @@
 		src.icon_state = pick("Hvy1", "Hvy2", "Hvy3")
 		energy = 2
 
+	for(var/datum/spacevine_mutation/SM in mutations)
+		SM.on_grow(src)
+
 /obj/effect/spacevine/proc/buckle_mob()
 	if(!buckled_mob && prob(25))
 		for(var/mob/living/carbon/V in src.loc)
@@ -209,7 +356,7 @@
 		if(!locate(/obj/effect/spacevine,F))
 			if(F.Enter(src))
 				if(master)
-					master.spawn_spacevine_piece( F )
+					master.spawn_spacevine_piece(F, src)
 
 /*
 /obj/effect/spacevine/proc/Life()

code/modules/hydroponics/seeds.dm

@@ -1033,12 +1033,13 @@
 	growthstages = 4
 	plant_type = 1
 	rarity = 30
+	var/list/mutations = list()
 
 /obj/item/seeds/kudzuseed/attack_self(mob/user as mob)
 	if(istype(user.loc,/turf/space))
 		return
 	user << "<span class='notice'>You plant the kudzu. You monster.</span>"
-	new /obj/effect/spacevine_controller(user.loc)
+	new /obj/effect/spacevine_controller(user.loc, mutations, 1)
 	qdel(src)
 
 /obj/item/seeds/chillighost