Added Post-Drain belly modes (#15876)

* Added Post-Drain belly modes

Added "Drain Finishing Modes" that kick into effect once a drain belly has extracted all of the nutrition that it can out of a prey character.

These modes are currently:
Normal: Current behaviour, just stops when it runs out of nutrition to extract.
Sleep: Slowly increases the prey's tiredness until the fall asleep. Be warned that they won't be able to post or see posts when they fall asleep.
False Sleep: Slowly increases the prey's tiredness until just before they fall asleep, darkening their screen but NOT preventing them from posting and reading posts.
Weight Drain: You're done draining their nutrition? Well, time to start taking their weight directly and adding it to your own body. Is dependent on the prey's weight loss % chosen in character setup.

* Added a knockout process option

* I forgot eject all on the previous commit

* Update tgui.bundle.js

code/modules/mob/living/carbon/human/life.dm

@@ -1245,6 +1245,11 @@
 			Paralyse(10)
 			setHalLoss(species.total_health - 1)
 
+		if(tiredness) //tiredness for vore drain
+			tiredness = (tiredness - 1)
+			if(tiredness >= 100)
+				Sleeping(5)
+
 		if(paralysis || sleeping)
 			blinded = 1
 			set_stat(UNCONSCIOUS)
@@ -1429,6 +1434,21 @@
 		else
 			clear_fullscreen("brute")
 
+		//tiredness for drain vore
+		if(tiredness)
+			var/severity = 0
+			switch(tiredness)
+				if(10 to 20)		severity = 1
+				if(20 to 30)		severity = 2
+				if(30 to 45)		severity = 3
+				if(45 to 60)		severity = 4
+				if(60 to 75)		severity = 5
+				if(75 to 90)		severity = 6
+				if(90 to INFINITY)	severity = 7
+			overlay_fullscreen("tired", /obj/screen/fullscreen/oxy, severity)
+		else
+			clear_fullscreen("tired")
+
 		if(healths)
 			if (chem_effects[CE_PAINKILLER] > 100)
 				healths.icon_state = "health_numb"

code/modules/mob/living/living_defines.dm

@@ -82,3 +82,4 @@
 	var/inventory_panel_type = /datum/inventory_panel
 	var/datum/inventory_panel/inventory_panel
 	var/last_resist_time = 0 // world.time of the most recent resist that wasn't on cooldown.
+	var/tiredness = 0					//For vore draining