Stamina indicator HUD for humans (#64011)

imageadd: Added a stamina indicator to the human mob's HUD.

code/_onclick/hud/_defines.dm

@@ -71,9 +71,10 @@
 //Middle right (status indicators)
 #define ui_healthdoll "EAST-1:28,CENTER-2:13"
 #define ui_health "EAST-1:28,CENTER-1:15"
-#define ui_internal "EAST-1:28,CENTER-3:10"
+#define ui_internal "EAST-1:28,CENTER+1:17"
 #define ui_mood "EAST-1:28,CENTER:17"
 #define ui_spacesuit "EAST-1:28,CENTER-4:10"
+#define ui_stamina "EAST-1:28,CENTER-3:10"
 
 //Pop-up inventory
 #define ui_shoes "WEST+1:8,SOUTH:5"

code/_onclick/hud/hud.dm

@@ -74,6 +74,7 @@ GLOBAL_LIST_INIT(available_ui_styles, list(
 	var/action_buttons_hidden = FALSE
 
 	var/atom/movable/screen/healths
+	var/atom/movable/screen/stamina
 	var/atom/movable/screen/healthdoll
 	var/atom/movable/screen/internals
 	var/atom/movable/screen/wanted/wanted_lvl
@@ -131,6 +132,7 @@ GLOBAL_LIST_INIT(available_ui_styles, list(
 	QDEL_LIST(infodisplay)
 
 	healths = null
+	stamina = null
 	healthdoll = null
 	wanted_lvl = null
 	internals = null

code/_onclick/hud/human.dm

@@ -291,6 +291,10 @@
 	healthdoll.hud = src
 	infodisplay += healthdoll
 
+	stamina = new /atom/movable/screen/stamina()
+	stamina.hud = src
+	infodisplay += stamina
+
 	pull_icon = new /atom/movable/screen/pull()
 	pull_icon.icon = ui_style
 	pull_icon.update_appearance()

code/_onclick/hud/screen_objects.dm

@@ -754,3 +754,8 @@ INITIALIZE_IMMEDIATE(/atom/movable/screen/splash)
 		intent_icon.pixel_x = 16 * (i - 1) - 8 * length(streak)
 		add_overlay(intent_icon)
 	return ..()
+
+/atom/movable/screen/stamina
+	name = "stamina"
+	icon_state = "stamina0"
+	screen_loc = ui_stamina

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

@@ -539,7 +539,7 @@
 		REMOVE_TRAIT(src, TRAIT_FLOORED, STAMINA)
 	else
 		return
-	update_health_hud()
+	update_stamina_hud()
 
 /mob/living/carbon/update_sight()
 	if(!client)
@@ -768,6 +768,29 @@
 		else
 			hud_used.healths.icon_state = "health7"
 
+/mob/living/carbon/update_stamina_hud(shown_stamina_amount)
+	if(!client || !hud_used?.stamina)
+		return
+	if(stat == DEAD || IsStun() || IsParalyzed() || IsImmobilized() || IsKnockdown() || IsFrozen())
+		hud_used.stamina.icon_state = "stamina6"
+	else
+		if(shown_stamina_amount == null)
+			shown_stamina_amount = health - getStaminaLoss() - crit_threshold
+		if(shown_stamina_amount >= health)
+			hud_used.stamina.icon_state = "stamina0"
+		else if(shown_stamina_amount > health*0.8)
+			hud_used.stamina.icon_state = "stamina1"
+		else if(shown_stamina_amount > health*0.6)
+			hud_used.stamina.icon_state = "stamina2"
+		else if(shown_stamina_amount > health*0.4)
+			hud_used.stamina.icon_state = "stamina3"
+		else if(shown_stamina_amount > health*0.2)
+			hud_used.stamina.icon_state = "stamina4"
+		else if(shown_stamina_amount > 0)
+			hud_used.stamina.icon_state = "stamina5"
+		else
+			hud_used.stamina.icon_state = "stamina6"
+
 /mob/living/carbon/proc/update_internals_hud_icon(internal_state = 0)
 	if(hud_used?.internals)
 		hud_used.internals.icon_state = "internal[internal_state]"
@@ -809,6 +832,7 @@
 			set_stat(CONSCIOUS)
 	update_damage_hud()
 	update_health_hud()
+	update_stamina_hud()
 	med_hud_set_status()
 
 

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

@@ -709,8 +709,7 @@
 		return
 	else
 		if(hud_used.healths)
-			var/health_amount = min(health, maxHealth - getStaminaLoss())
-			if(..(health_amount)) //not dead
+			if(..()) //not dead
 				switch(hal_screwyhud)
 					if(SCREWYHUD_CRIT)
 						hud_used.healths.icon_state = "health6"

code/modules/mob/mob.dm

@@ -1107,6 +1107,10 @@
 /mob/proc/update_health_hud()
 	return
 
+/// Changes the stamina HUD based on new information
+/mob/proc/update_stamina_hud()
+	return
+
 ///Update the lighting plane and sight of this mob (sends COMSIG_MOB_UPDATE_SIGHT)
 /mob/proc/update_sight()
 	SEND_SIGNAL(src, COMSIG_MOB_UPDATE_SIGHT)