Fixes Eigenstasium creation (#348)

* readd eigenstasium reaction

* remove outdated comments

* remove more outdated comments

* fix location saving

* add a temp requirement

Author: rdragan

code/modules/reagents/chemistry/recipes.dm

@@ -49,10 +49,6 @@
 
 /**
  * Shit that happens on reaction
- * Only procs at the START of a reaction
- * use reaction_step() for each step of a reaction
- * or reaction_end() when the reaction stops
- * If reaction_flags & REACTION_INSTANT then this is the only proc that is called.
  *
  * Proc where the additional magic happens.
  * You dont want to handle mob spawning in this since there is a dedicated proc for that.client

code/modules/reagents/chemistry/recipes/others.dm

@@ -676,3 +676,23 @@
 	for(var/i in rand(1, created_volume) to created_volume)
 		new /mob/living/simple_animal/ant(location)
 	..()
+
+/datum/chemical_reaction/eigenstate
+	results = list(/datum/reagent/eigenstate = 1)
+	required_reagents = list(/datum/reagent/bluespace = 1, /datum/reagent/stable_plasma = 1, /datum/reagent/consumable/caramel = 1)
+	required_temp = 350
+	mix_message = "the reaction zaps suddenly!"
+	mix_sound = 'sound/chemistry/bluespace.ogg'
+
+/datum/chemical_reaction/eigenstate/on_reaction(datum/reagents/holder, react_vol)
+	. = ..()
+	var/turf/open/location = get_turf(holder.my_atom)
+
+	var/datum/reagent/eigenstate/eigen = holder.has_reagent(/datum/reagent/eigenstate)
+	if(!eigen)
+		return
+	if(location)
+		eigen.location_created = location
+		eigen.data["location_created"] = location
+
+	do_sparks(5,FALSE,location)