Adds heartbeats (#28858)

* beatz

* use defines

* comments

* start refactor

* refactor 2

* finish refactor

* fix

* Update misc.dm

* Update life.dm

* Update heart.dm

* Update heart.dm

* remove human checks

* move things around

* woops

* wew

* update lowest sound channel

* remove stopsound

* get_turf

code/__DEFINES/misc.dm

@@ -434,3 +434,10 @@ GLOBAL_LIST_INIT(ghost_others_options, list(GHOST_OTHERS_SIMPLE, GHOST_OTHERS_DE
 
 //for obj explosion block calculation
 #define EXPLOSION_BLOCK_PROC -1
+
+//for determining which type of heartbeat sound is playing
+#define BEAT_FAST 1
+#define BEAT_SLOW 2
+#define BEAT_NONE 0
+
+

code/__DEFINES/sound.dm

@@ -4,9 +4,10 @@
 #define CHANNEL_VOX 1022
 #define CHANNEL_JUKEBOX 1021
 #define CHANNEL_JUSTICAR_ARK 1020
+#define CHANNEL_HEARTBEAT 1019 //sound channel for heartbeats
 
 //THIS SHOULD ALWAYS BE THE LOWEST ONE!
 //KEEP IT UPDATED
 
-#define CHANNEL_HIGHEST_AVAILABLE 1019
+#define CHANNEL_HIGHEST_AVAILABLE 1018
 

code/modules/mob/living/carbon/carbon_defines.dm

@@ -44,6 +44,6 @@
 	//Gets filled up in create_bodyparts()
 
 	var/list/hand_bodyparts = list() //a collection of arms (or actually whatever the fug /bodyparts you monsters use to wreck my systems)
-	
+
 	var/icon_render_key = ""
 	var/static/list/limb_icon_cache = list()

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

@@ -20,6 +20,7 @@
 	//Updates the number of stored chemicals for powers
 	handle_changeling()
 
+
 	if(stat != DEAD)
 		return 1
 
@@ -300,7 +301,6 @@
 //this updates all special effects: stun, sleeping, knockdown, druggy, stuttering, etc..
 /mob/living/carbon/handle_status_effects()
 	..()
-
 	if(staminaloss)
 		adjustStaminaLoss(-3)
 
@@ -347,7 +347,7 @@
 			AdjustSleeping(20)
 			Unconscious(100)
 
-	//Jitteryness
+	//Jitteriness
 	if(jitteriness)
 		do_jitter_animation(jitteriness)
 		jitteriness = max(jitteriness - restingpwr, 0)

code/modules/surgery/organs/heart.dm

@@ -8,6 +8,7 @@
 	var/beating = 1
 	var/icon_base = "heart"
 	attack_verb = list("beat", "thumped")
+	var/beat = BEAT_NONE//is this mob having a heatbeat sound played? if so, which?
 
 /obj/item/organ/heart/update_icon()
 	if(beating)
@@ -48,6 +49,21 @@
 	S.icon_state = "heart-off"
 	return S
 
+/obj/item/organ/heart/on_life()
+	if(owner.client)
+		var/mob/living/carbon/H = owner
+		if(H.health <= HEALTH_THRESHOLD_CRIT && beat != BEAT_SLOW)
+			beat = BEAT_SLOW
+			H.playsound_local(get_turf(H),'sound/health/slowbeat.ogg',40,0, channel = CHANNEL_HEARTBEAT)
+			to_chat(owner, "<span class = 'notice'>You feel your heart slow down...</span>")
+		if(beat == BEAT_SLOW && H.health > HEALTH_THRESHOLD_CRIT)
+			H.stop_sound_channel(CHANNEL_HEARTBEAT)
+			beat = BEAT_NONE
+
+		if(H.jitteriness)
+			if(!beat || beat == BEAT_SLOW)
+				H.playsound_local(get_turf(H),'sound/health/fastbeat.ogg',40,0, channel = CHANNEL_HEARTBEAT)
+				beat = BEAT_FAST
 
 /obj/item/organ/heart/cursed
 	name = "cursed heart"