Fixes non-constant expressions in switch-block if-statements (#32650)

* Fix non-constant expressions in switch blocks.

* Fix.

code/game/objects/structures/bedsheet_bin.dm

@@ -150,12 +150,12 @@ LINEN BINS
 
 
 /obj/structure/bedsheetbin/update_icon()
-	switch(amount)
+	if(amount == 0)
-		if(0)
 		icon_state = "linenbin-empty"
-		if(1 to amount / 2)
+	else if(amount <= initial(amount) / 2)
 		icon_state = "linenbin-half"
-		else				icon_state = "linenbin-full"
+	else
+		icon_state = "linenbin-full"
 
 
 /obj/structure/bedsheetbin/attackby(obj/item/I as obj, mob/user as mob)

code/game/objects/structures/vehicles/clowncart.dm

@@ -67,12 +67,11 @@
 			to_chat(user, "Currently in drawing mode.")
 		if(MODE_PEELS)
 			to_chat(user, "Currently in banana mode.")
-	switch(health)
+	if(health in max_health * 0.5 to max_health)
-		if(max_health*0.5 to max_health)
 		to_chat(user, "<span class='notice'>It appears slightly dented.</span>")
-		if(1 to max_health*0.5)
+	else if(health in 1 to max_health * 0.5)
 		to_chat(user, "<span class='warning'>It appears heavily dented.</span>")
-		if((INFINITY * -1) to 0)
+	else if(health <= 0)
 		to_chat(user, "<span class='danger'>It appears completely unsalvageable.</span>")
 
 /obj/structure/bed/chair/vehicle/clowncart/attackby(obj/item/W, mob/user)

code/modules/clothing/suits/plate_carrier.dm

@@ -99,12 +99,11 @@
 
 /obj/item/weapon/armor_plate/examine(var/mob/user)
 	..()
-	switch(health)
+	if(health in initial(health) to initial(health)/2)
-		if(initial(health) to initial(health)/2)
 		to_chat(user, "<span class = 'notice'>\The [src] is hard.</span>")
-		if(initial(health)/2-1 to initial(health)/4)
+	else if(health in initial(health)/2-1 to initial(health)/4)
 		to_chat(user, "<span class = 'warning'>\The [src] is brittle.</span>")
-		if(initial(health)/4-1 to 0)
+	else if(health in initial(health)/4-1 to 0)
 		to_chat(user, "<span class = 'warning'>\The [src] is falling apart!</span>")
 
 /obj/item/weapon/armor_plate/bullet_resistant

code/modules/mob/living/silicon/robot/robot_hud.dm

@@ -119,6 +119,9 @@
 	if(healths)
 		if(!isDead())
 			var/current_health = health/maxHealth
+			if(current_health in config.health_threshold_dead to 0)
+				healths.icon_state = "health5"
+			else
 				switch(current_health)
 					if(0.9 to 1)
 						healths.icon_state = "health0"
@@ -130,8 +133,6 @@
 						healths.icon_state = "health3"
 					if(0 to 0.25)
 						healths.icon_state = "health4"
-				if(config.health_threshold_dead to 0)
-					healths.icon_state = "health5"
 					else
 						healths.icon_state = "health6"
 		else

code/modules/organs/internal/lungs/lung.dm

@@ -70,31 +70,31 @@
 				H.adjustToxLoss(round(H.species.cold_level_1 - breath.temperature))
 				H.fire_alert = max(H.fire_alert, 1)
 		else
-			switch(breath.temperature)
+			if(breath.temperature in H.species.cold_level_1 to H.species.heat_level_1)
-				if(H.species.cold_level_1 to H.species.heat_level_1)
 				return
-				if(-INFINITY to H.species.cold_level_3)
+
+			else if(breath.temperature <= H.species.cold_level_3)
 				H.apply_damage(COLD_GAS_DAMAGE_LEVEL_3, BURN, LIMB_HEAD, used_weapon = "Excessive Cold")
 				H.fire_alert = max(H.fire_alert, 1)
 
-				if(H.species.cold_level_3 to H.species.cold_level_2)
+			else if(breath.temperature <= H.species.cold_level_2)
 				H.apply_damage(COLD_GAS_DAMAGE_LEVEL_2, BURN, LIMB_HEAD, used_weapon = "Excessive Cold")
 				H.fire_alert = max(H.fire_alert, 1)
 
-				if(H.species.cold_level_2 to H.species.cold_level_1)
+			else if(breath.temperature <= H.species.cold_level_1)
 				H.apply_damage(COLD_GAS_DAMAGE_LEVEL_1, BURN, LIMB_HEAD, used_weapon = "Excessive Cold")
 				H.fire_alert = max(H.fire_alert, 1)
 
-				if(H.species.heat_level_1 to H.species.heat_level_2)
+			else if(breath.temperature >= H.species.heat_level_3)
-					H.apply_damage(HEAT_GAS_DAMAGE_LEVEL_1, BURN, LIMB_HEAD, used_weapon = "Excessive Heat")
+				H.apply_damage(HEAT_GAS_DAMAGE_LEVEL_3, BURN, LIMB_HEAD, used_weapon = "Excessive Heat")
 				H.fire_alert = max(H.fire_alert, 2)
 
-				if(H.species.heat_level_2 to H.species.heat_level_3)
+			else if(breath.temperature >= H.species.heat_level_2)
 				H.apply_damage(HEAT_GAS_DAMAGE_LEVEL_2, BURN, LIMB_HEAD, used_weapon = "Excessive Heat")
 				H.fire_alert = max(H.fire_alert, 2)
 
-				if(H.species.heat_level_3 to INFINITY)
+			else if(breath.temperature >= H.species.heat_level_1)
-					H.apply_damage(HEAT_GAS_DAMAGE_LEVEL_3, BURN, LIMB_HEAD, used_weapon = "Excessive Heat")
+				H.apply_damage(HEAT_GAS_DAMAGE_LEVEL_1, BURN, LIMB_HEAD, used_weapon = "Excessive Heat")
 				H.fire_alert = max(H.fire_alert, 2)
 
 /datum/organ/internal/lungs/process()