Surgery on napping people wakes them up. (#17661)

* Surgery on napping people wakes them up.

* Fix a potential afreeze issue

* Code review

* has_status_effect now returns `null` if no status effect

* move `voluntary` to be an arg to New

* Update code/modules/surgery/helpers.dm

Co-authored-by: Charlie <69320440+hal9000PR@users.noreply.github.com>

* And this other IsSleeping call

Co-authored-by: Charlie <69320440+hal9000PR@users.noreply.github.com>

code/modules/mob/living/status_procs.dm

@@ -382,7 +382,7 @@
 		S = apply_status_effect(STATUS_EFFECT_SLEEPING, amount)
 	return S
 
-/mob/living/proc/SetSleeping(amount, ignore_canstun = FALSE)
+/mob/living/proc/SetSleeping(amount, ignore_canstun = FALSE, voluntary = FALSE)
 	if(frozen) // If the mob has been admin frozen, sleeping should not be changeable
 		return
 	if(status_flags & GODMODE)
@@ -393,13 +393,19 @@
 	if(S)
 		S.duration = amount + world.time
 	else if(amount > 0)
-		S = apply_status_effect(STATUS_EFFECT_SLEEPING, amount)
+		S = apply_status_effect(STATUS_EFFECT_SLEEPING, amount, voluntary)
+	if(!voluntary && S)
+		// Only set it one way (true => false)
+		// Otherwise if we are hard knocked out, and then try to nap, we'd be
+		// treated as "just lightly napping" and woken up by trivial stuff.
+		S.voluntary = FALSE
 	return S
 
 /mob/living/proc/PermaSleeping() /// used for admin freezing.
 	var/datum/status_effect/incapacitating/sleeping/S = IsSleeping()
 	if(S)
 		S.duration = -1
+		S.voluntary = FALSE
 	else
 		S = apply_status_effect(STATUS_EFFECT_SLEEPING, -1)
 	return S

code/modules/mob/mob_helpers.dm

@@ -460,9 +460,8 @@ GLOBAL_LIST_INIT(intents, list(INTENT_HELP,INTENT_DISARM,INTENT_GRAB,INTENT_HARM
 	if(IsSleeping())
 		to_chat(src, "<span class='notice'>You are already sleeping.</span>")
 		return
-	else
-		if(alert(src, "You sure you want to sleep for a while?", "Sleep", "Yes", "No") == "Yes")
-			SetSleeping(40 SECONDS) //Short nap
+	if(alert(src, "You sure you want to sleep for a while?", "Sleep", "Yes", "No") == "Yes")
+		SetSleeping(40 SECONDS, voluntary = TRUE) //Short nap
 
 /mob/living/verb/lay_down()
 	set name = "Rest"

code/modules/surgery/helpers.dm

@@ -118,7 +118,13 @@
 
 
 /proc/get_pain_modifier(mob/living/carbon/human/M) //returns modfier to make surgery harder if patient is conscious and feels pain
-	if(M.stat) //stat=0 if CONSCIOUS, 1=UNCONSCIOUS and 2=DEAD. Operating on dead people is easy, too. Just sleeping won't work, though.
+	if(M.stat == DEAD) // Operating on dead people is easy
+		return 1
+	var/datum/status_effect/incapacitating/sleeping/S = M.IsSleeping()
+	if(M.stat == UNCONSCIOUS && !(S?.voluntary))
+		// Either unconscious due to something other than sleep,
+		// or "sleeping" due to being hard knocked out (N2O or similar), rather than just napping.
+		// Either way, not easily woken up.
 		return 1
 	if(HAS_TRAIT(M, TRAIT_NOPAIN))//if you don't feel pain, you can hold still
 		return 1

code/modules/surgery/surgery.dm

@@ -114,7 +114,16 @@
 		if(!ispath(surgery.steps[surgery.status], /datum/surgery_step/robotics))//Repairing robotic limbs doesn't hurt, and neither does cutting someone out of a rig
 			if(ishuman(target))
 				var/mob/living/carbon/human/H = target //typecast to human
-				prob_chance *= get_pain_modifier(H)//operating on conscious people is hard.
+				var/pain_mod = get_pain_modifier(H)
+				var/datum/status_effect/incapacitating/sleeping/S = H.IsSleeping()
+				if(S?.voluntary)
+					H.SetSleeping(0) // wake up people who are napping through the surgery
+					if(pain_mod < 0.95)
+						to_chat(H, "<span class='danger'>The surgery on your [target_zone] is agonizingly painful, and wrecks you out of your shallow slumber!</span>")
+					else
+						// Still wake people up, but they shouldn't be as alarmed.
+						to_chat(H, "<span class='warning'>The surgery being performed on your [target_zone] wakes you up.</span>")
+				prob_chance *= pain_mod //operating on conscious people is hard.
 
 		if(prob(prob_chance) || isrobot(user))
 			if(end_step(user, target, target_zone, tool, surgery))