Photosynthesis element. (#12394)

* Photosynthesis element.

* element yaketi sax.

* Ok, let's just use SSobj which has 20 wait instead of 10.

code/datums/components/mood.dm

@@ -25,7 +25,7 @@
 
 	var/mob/living/owner = parent
 	if(owner.stat != DEAD)
-		START_PROCESSING(SSdcs, src)
+		START_PROCESSING(SSobj, src)
 
 	RegisterSignal(parent, COMSIG_ADD_MOOD_EVENT, .proc/add_event)
 	RegisterSignal(parent, COMSIG_CLEAR_MOOD_EVENT, .proc/clear_event)
@@ -40,12 +40,12 @@
 		hud.show_hud(hud.hud_version)
 
 /datum/component/mood/Destroy()
-	STOP_PROCESSING(SSdcs, src)
+	STOP_PROCESSING(SSobj, src)
 	unmodify_hud()
 	return ..()
 
 /datum/component/mood/proc/stop_processing()
-	STOP_PROCESSING(SSdcs, src)
+	STOP_PROCESSING(SSobj, src)
 
 /datum/component/mood/proc/print_mood(mob/user)
 	var/msg = "<span class='info'>*---------*\n<EM>Your current mood</EM>\n"
@@ -138,7 +138,7 @@
 		else
 			screen_obj.icon_state = "mood[mood_level]"
 
-/datum/component/mood/process() //Called on SSdcs process
+/datum/component/mood/process() //Called on SSobj process
 	if(QDELETED(parent)) // workaround to an obnoxious sneaky periodical runtime.
 		qdel(src)
 		return
@@ -345,7 +345,7 @@
 
 ///Called when parent is revived.
 /datum/component/mood/proc/on_revive(datum/source, full_heal)
-	START_PROCESSING(SSdcs, src)
+	START_PROCESSING(SSobj, src)
 	if(!full_heal)
 		return
 	remove_temp_moods()

code/datums/elements/earhealing.dm

@@ -4,7 +4,7 @@
 	var/list/user_by_item = list()
 
 /datum/element/earhealing/New()
-	START_PROCESSING(SSdcs, src)
+	START_PROCESSING(SSobj, src)
 
 /datum/element/earhealing/Attach(datum/target)
 	. = ..()

code/datums/elements/photosynthesis.dm

@@ -0,0 +1,81 @@
+/datum/element/photosynthesis
+	element_flags = ELEMENT_BESPOKE|ELEMENT_DETACH
+	id_arg_index = 2
+	///how much brute damage (or integrity, for objects) is healed (taken if positive) at maximum luminosity. (if lum_minus were 0)
+	var/light_bruteheal = -1
+	///how much burn damage is restored/taken at maximum luminosity. Mobs only.
+	var/light_burnheal = -1
+	///how much tox damage is restored/taken at maximum luminosity. Mobs only.
+	var/light_toxheal = -1
+	///how much oxy damage is restored/taken at maximum luminosity. Mobs only.
+	var/light_oxyheal = -1
+	///how nutrition recovery/expenses factor, not affected by bonus_lum and malus_lum. Mobs only.
+	var/light_nutrition_gain = 4
+	///A value subtracted to the lum count, which allows targets to wilt or heal in the darkness.
+	var/lum_minus = 0.5
+	///the minimum lum count over which where the target damage is adjusted.
+	var/bonus_lum = 0.2
+	///the maximum lum count under which the target damage is inversely adjusted.
+	var/malus_lum = 0
+	///List of atoms this element is attached to. Doubles as a multiplier if the same element is attached multiple times to a target multiple times.
+	var/list/attached_atoms
+
+/datum/element/photosynthesis/Attach(datum/target, brute = -1, burn = -1, tox = -1, oxy = -1, nutri = 4, minus = 0.5, bonus = 0.2, malus = 0)
+	. = ..()
+	if(. == ELEMENT_INCOMPATIBLE || !(isliving(target) || (isobj(target) && light_bruteheal)))
+		return ELEMENT_INCOMPATIBLE
+	light_bruteheal = brute
+	light_burnheal = burn
+	light_toxheal = tox
+	light_oxyheal = oxy
+	light_nutrition_gain = nutri
+	lum_minus = minus
+	bonus_lum = bonus
+	malus_lum = malus
+
+	if(!attached_atoms)
+		attached_atoms = list()
+		START_PROCESSING(SSobj, src)
+	attached_atoms[target]++
+
+/datum/element/photosynthesis/Detach(datum/target)
+	attached_atoms[target]--
+	if(!attached_atoms[target])
+		attached_atoms -= target
+		if(!length(attached_atoms))
+			STOP_PROCESSING(SSobj, src)
+			attached_atoms = null
+	return ..()
+
+/datum/element/photosynthesis/process()
+	for(var/A in attached_atoms)
+		var/atom/movable/AM = A
+		var/light_amount = 0 //how much light there is in the place, affects receiving nutrition and healing
+		if(isturf(AM.loc)) //else, there's considered to be no light
+			var/turf/T = AM.loc
+			light_amount = (T.get_lumcount() - lum_minus)
+
+		if(isliving(AM))
+			var/mob/living/L = AM
+			if(L.stat == DEAD)
+				continue
+			if(light_nutrition_gain)
+				L.adjust_nutrition(light_amount * light_nutrition_gain * attached_atoms[AM], NUTRITION_LEVEL_FULL)
+			if(light_amount > bonus_lum || light_amount < malus_lum)
+				var/mult = ((light_amount > bonus_lum) ? 1 : -1) * attached_atoms[AM]
+				if(light_bruteheal)
+					L.adjustBruteLoss(light_bruteheal * mult)
+				if(light_burnheal)
+					L.adjustFireLoss(light_burnheal * mult)
+				if(light_toxheal)
+					L.adjustToxLoss(light_toxheal * mult)
+				if(light_oxyheal)
+					L.adjustOxyLoss(light_oxyheal * mult)
+
+		else if(light_amount > bonus_lum || light_amount < malus_lum)
+			var/obj/O = AM
+			var/damage = light_bruteheal * ((light_amount > bonus_lum) ? 1 : -1) * attached_atoms[AM]
+			if(damage < 0 && O.obj_integrity < O.max_integrity)
+				O.obj_integrity = min(O.obj_integrity + damage, O.max_integrity) //Till we get a obj heal proc...
+			else
+				O.take_damage(damage, BRUTE, FALSE, FALSE, null, 100)

code/modules/mob/living/carbon/human/species_types/golems.dm

@@ -280,25 +280,15 @@
 	. = ..()
 	C.faction |= "plants"
 	C.faction |= "vines"
+	C.AddElement(/datum/element/photosynthesis)
 
 /datum/species/golem/wood/on_species_loss(mob/living/carbon/C)
 	. = ..()
 	C.faction -= "plants"
 	C.faction -= "vines"
+	C.RemoveElement(/datum/element/photosynthesis)
 
 /datum/species/golem/wood/spec_life(mob/living/carbon/human/H)
-	if(H.stat == DEAD)
-		return
-	var/light_amount = 0 //how much light there is in the place, affects receiving nutrition and healing
-	if(isturf(H.loc)) //else, there's considered to be no light
-		var/turf/T = H.loc
-		light_amount = min(1,T.get_lumcount()) - 0.5
-		H.adjust_nutrition(light_amount * 4, NUTRITION_LEVEL_FULL)
-		if(light_amount > 0.2) //if there's enough light, heal
-			H.heal_overall_damage(1,1)
-			H.adjustToxLoss(-1)
-			H.adjustOxyLoss(-1)
-
 	if(H.nutrition < NUTRITION_LEVEL_STARVING + 50)
 		H.take_overall_damage(2,0)
 

code/modules/mob/living/carbon/human/species_types/podpeople.dm

@@ -14,34 +14,24 @@
 	liked_food = VEGETABLES | FRUIT | GRAIN
 	species_language_holder = /datum/language_holder/sylvan
 	var/light_nutrition_gain_factor = 4
-	var/light_toxheal = 1
-	var/light_oxyheal = 1
-	var/light_burnheal = 1
-	var/light_bruteheal = 1
+	var/light_toxheal = -1
+	var/light_oxyheal = -1
+	var/light_burnheal = -1
+	var/light_bruteheal = -1
 
 /datum/species/pod/on_species_gain(mob/living/carbon/C, datum/species/old_species)
 	. = ..()
 	C.faction |= "plants"
 	C.faction |= "vines"
+	C.AddElement(/datum/element/photosynthesis, light_bruteheal, light_burnheal, light_toxheal, light_oxyheal, light_nutrition_gain_factor)
 
 /datum/species/pod/on_species_loss(mob/living/carbon/C)
 	. = ..()
 	C.faction -= "plants"
 	C.faction -= "vines"
+	C.RemoveElement(/datum/element/photosynthesis, light_bruteheal, light_burnheal, light_toxheal, light_oxyheal, light_nutrition_gain_factor)
 
 /datum/species/pod/spec_life(mob/living/carbon/human/H)
-	if(H.stat == DEAD)
-		return
-	var/light_amount = 0 //how much light there is in the place, affects receiving nutrition and healing
-	if(isturf(H.loc)) //else, there's considered to be no light
-		var/turf/T = H.loc
-		light_amount = min(1,T.get_lumcount()) - 0.5
-		H.adjust_nutrition(light_amount * light_nutrition_gain_factor, NUTRITION_LEVEL_FULL)
-		if(light_amount > 0.2) //if there's enough light, heal
-			H.heal_overall_damage(light_bruteheal, light_burnheal)
-			H.adjustToxLoss(-light_toxheal)
-			H.adjustOxyLoss(-light_oxyheal)
-
 	if(H.nutrition < NUTRITION_LEVEL_STARVING + 50)
 		H.take_overall_damage(2,0)
 
@@ -77,9 +67,9 @@
 	mutant_bodyparts = list("mcolor" = "FFF","mcolor2" = "FFF","mcolor3" = "FFF", "mam_snouts" = "Husky", "mam_tail" = "Husky", "mam_ears" = "Husky", "mam_body_markings" = "Husky", "taur" = "None", "legs" = "Normal Legs")
 	limbs_id = "pod"
 	light_nutrition_gain_factor = 3
-	light_bruteheal = 0.2
-	light_burnheal = 0.2
-	light_toxheal = 0.7
+	light_bruteheal = -0.2
+	light_burnheal = -0.2
+	light_toxheal = -0.7
 
 /datum/species/pod/pseudo_weak/spec_death(gibbed, mob/living/carbon/human/H)
 	if(H)

code/modules/mob/living/carbon/human/species_types/shadowpeople.dm

@@ -15,16 +15,13 @@
 	dangerous_existence = 1
 	mutanteyes = /obj/item/organ/eyes/night_vision
 
+/datum/species/shadow/on_species_gain(mob/living/carbon/C, datum/species/old_species)
+	. = ..()
+	C.AddElement(/datum/element/photosynthesis, 1, 1, 0, 0, 0, 0, SHADOW_SPECIES_LIGHT_THRESHOLD, SHADOW_SPECIES_LIGHT_THRESHOLD)
 
-/datum/species/shadow/spec_life(mob/living/carbon/human/H)
-	var/turf/T = H.loc
-	if(istype(T))
-		var/light_amount = T.get_lumcount()
-
-		if(light_amount > SHADOW_SPECIES_LIGHT_THRESHOLD) //if there's enough light, start dying
-			H.take_overall_damage(1,1)
-		else if (light_amount < SHADOW_SPECIES_LIGHT_THRESHOLD) //heal in the dark
-			H.heal_overall_damage(1,1)
+/datum/species/shadow/on_species_loss(mob/living/carbon/C)
+	. = ..()
+	C.RemoveElement(/datum/element/photosynthesis, 1, 1, 0, 0, 0, 0, SHADOW_SPECIES_LIGHT_THRESHOLD, SHADOW_SPECIES_LIGHT_THRESHOLD)
 
 /datum/species/shadow/check_roundstart_eligible()
 	if(SSevents.holidays && SSevents.holidays[HALLOWEEN])

tgstation.dme

@@ -537,6 +537,7 @@
 #include "code\datums\elements\forced_gravity.dm"
 #include "code\datums\elements\ghost_role_eligibility.dm"
 #include "code\datums\elements\mob_holder.dm"
+#include "code\datums\elements\photosynthesis.dm"
 #include "code\datums\elements\polychromic.dm"
 #include "code\datums\elements\scavenging.dm"
 #include "code\datums\elements\snail_crawl.dm"