Chemmaster TGUI (#16662)

* minimum viable product

* the E in TGUI stands for Enjoyment

* sdaf

* what the boss asked

code/__defines/chemistry.dm

@@ -114,7 +114,15 @@
 #define	VOMIT_CHANCE_SCALE 2.5 //Percent change added for every 0.01 percent over the VOMIT limit
 
 #define REAGENTS_FREE_SPACE(R) (R.maximum_volume - R.total_volume)
+
+/**
+ * Returns the reagent volume in the specified holder
+ *
+ * * REAGENT_HOLDER - The holder (container) of the reagent
+ * * REAGENT_TYPE - The type of reagent you want to know the amount of
+ */
 #define REAGENT_VOLUME(REAGENT_HOLDER, REAGENT_TYPE) (REAGENT_HOLDER?.reagent_volumes && REAGENT_HOLDER.reagent_volumes[REAGENT_TYPE])
+
 #define REAGENT_DATA(REAGENT_HOLDER, REAGENT_TYPE)   (REAGENT_HOLDER?.reagent_data    && REAGENT_HOLDER.reagent_data[REAGENT_TYPE])
 
 #define PROCESS_REACTION_ITER 5 //when processing a reaction, iterate this many times

code/modules/asset_cache/asset_cache.dm

@@ -659,7 +659,7 @@ var/list/asset_datums = list()
 
 /datum/asset/spritesheet/chem_master
 	name = "chemmaster"
-	cross_round_cachable = TRUE
+	cross_round_cachable = FALSE
 	var/list/bottle_sprites = list("bottle-1", "bottle-2", "bottle-3", "bottle-4", "bottle-5", "bottle-6")
 	var/max_pill_sprite = 20