Halfs the nutriment drain / doubles water capacity of hydroponics to …

…allow botanists to RP (MrMelbert#99)

It's halves but no one will see this

jollystation.dme

@@ -4050,6 +4050,7 @@
 #include "jollystation_modules\code\modules\events\resource_drift.dm"
 #include "jollystation_modules\code\modules\events\resource_pods.dm"
 #include "jollystation_modules\code\modules\food_and_drinks\recipes\drinks_recipes.dm"
+#include "jollystation_modules\code\modules\hydroponics\hydroponics.dm"
 #include "jollystation_modules\code\modules\hydroponics\grown\beans.dm"
 #include "jollystation_modules\code\modules\jobs\access.dm"
 #include "jollystation_modules\code\modules\jobs\job_types\_job.dm"

jollystation_modules/code/modules/hydroponics/hydroponics.dm

@@ -0,0 +1,31 @@
+// -- Hydroponics tray additions --
+#define TRAY_MODIFIED_BASE_NUTRIDRAIN 0.5
+#define TRAY_MODIFIED_BASE_MAXWATER 200
+
+/obj/machinery/hydroponics/constructable
+	// Max water is doubled so they don't need to rely on autogrow for all their trays
+	maxwater = TRAY_MODIFIED_BASE_MAXWATER
+	// Nutriment drain is halved so they can not worry about fertilizer as much
+	nutridrain = TRAY_MODIFIED_BASE_NUTRIDRAIN
+
+/obj/machinery/hydroponics/constructable/RefreshParts()
+	. = ..()
+	// Dehardcodes the nutridrain scaling factor
+	calculate_nutridrain()
+
+/obj/machinery/hydroponics/constructable/CtrlClick(mob/user)
+	var/curr_sustain = self_sustaining
+	. = ..()
+	// Hacky check to see if we actually toggled sustaining or not
+	// because I don't want to touch the main file
+	if(curr_sustain != self_sustaining)
+		calculate_nutridrain()
+
+/// Future melbert todo: Move this to a setter for when self-sustaining is made into one.
+/// Updates the nutridrain of the tray based on self sustaining status.
+/obj/machinery/hydroponics/constructable/proc/calculate_nutridrain()
+	var/sustaining_mod = self_sustaining ? 2 : 1
+	nutridrain = initial(nutridrain) / (sustaining_mod * rating)
+
+#undef TRAY_MODIFIED_BASE_NUTRIDRAIN
+#undef TRAY_MODIFIED_BASE_MAXWATER