Fixes #8495

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

@@ -712,7 +712,7 @@
 	if(species.has_fine_manipulation)
 		return 1
 	if(!silent)
-		src << "<span class='warning'>You don't have the dexterity to use [src]!</span>"
+		src << "<span class='warning'>You don't have the dexterity to use that!<span>"
 	return 0
 
 /mob/living/carbon/human/abiotic(var/full_body = 0)

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

@@ -617,7 +617,7 @@
 				else
 					apply_damage(HEAT_GAS_DAMAGE_LEVEL_3, BURN, "head", used_weapon = "Excessive Heat")
 					fire_alert = max(fire_alert, 2)
-			
+
 			else if(breath.temperature <= species.cold_level_1)
 				if(breath.temperature > species.cold_level_2)
 					apply_damage(COLD_GAS_DAMAGE_LEVEL_1, BURN, "head", used_weapon = "Excessive Cold")
@@ -705,7 +705,7 @@
 			//Body temperature is too hot.
 			fire_alert = max(fire_alert, 1)
 			if(status_flags & GODMODE)	return 1	//godmode
-			
+
 			if(bodytemperature < species.heat_level_2)
 				take_overall_damage(burn=HEAT_DAMAGE_LEVEL_1, used_weapon = "High Body Temperature")
 				fire_alert = max(fire_alert, 2)
@@ -719,7 +719,7 @@
 		else if(bodytemperature <= species.cold_level_1)
 			fire_alert = max(fire_alert, 1)
 			if(status_flags & GODMODE)	return 1	//godmode
-			
+
 			if(!istype(loc, /obj/machinery/atmospherics/unary/cryo_cell))
 				if(bodytemperature > species.cold_level_2)
 					take_overall_damage(burn=COLD_DAMAGE_LEVEL_1, used_weapon = "High Body Temperature")
@@ -1285,6 +1285,8 @@
 				glasses_processed = 1
 				process_glasses(glasses)
 
+			if(!glasses_processed && (species.vision_flags > 0))
+				sight |= species.vision_flags
 			if(!seer && !glasses_processed)
 				see_invisible = SEE_INVISIBLE_LIVING
 
@@ -1571,7 +1573,7 @@
 			var/percentage_health = RoundHealth((health-config.health_threshold_crit)/(maxHealth-config.health_threshold_crit)*100)
 			holder.icon_state = "hud[percentage_health]"
 		hud_list[HEALTH_HUD] = holder
-	
+
 	if (BITTEST(hud_updateflag, STATUS_HUD))
 		var/foundVirus = 0
 		for(var/datum/disease/D in viruses)
@@ -1608,7 +1610,7 @@
 
 		hud_list[STATUS_HUD] = holder
 		hud_list[STATUS_HUD_OOC] = holder2
-	
+
 	if (BITTEST(hud_updateflag, ID_HUD))
 		var/image/holder = hud_list[ID_HUD]
 		if(wear_id)
@@ -1622,7 +1624,7 @@
 
 
 		hud_list[ID_HUD] = holder
-	
+
 	if (BITTEST(hud_updateflag, WANTED_HUD))
 		var/image/holder = hud_list[WANTED_HUD]
 		holder.icon_state = "hudblank"
@@ -1648,11 +1650,11 @@
 						holder.icon_state = "hudreleased"
 						break
 		hud_list[WANTED_HUD] = holder
-	
+
 	if (  BITTEST(hud_updateflag, IMPLOYAL_HUD) \
 	   || BITTEST(hud_updateflag,  IMPCHEM_HUD) \
 	   || BITTEST(hud_updateflag, IMPTRACK_HUD))
-		
+
 		var/image/holder1 = hud_list[IMPTRACK_HUD]
 		var/image/holder2 = hud_list[IMPLOYAL_HUD]
 		var/image/holder3 = hud_list[IMPCHEM_HUD]
@@ -1673,7 +1675,7 @@
 		hud_list[IMPTRACK_HUD] = holder1
 		hud_list[IMPLOYAL_HUD] = holder2
 		hud_list[IMPCHEM_HUD]  = holder3
-	
+
 	if (BITTEST(hud_updateflag, SPECIALROLE_HUD))
 		var/image/holder = hud_list[SPECIALROLE_HUD]
 		holder.icon_state = "hudblank"
@@ -1734,10 +1736,10 @@
 /mob/living/carbon/human/handle_fire()
 	if(..())
 		return
-	
+
 	var/burn_temperature = fire_burn_temperature()
 	var/thermal_protection = get_heat_protection(burn_temperature)
-	
+
 	if (thermal_protection < 1 && bodytemperature < burn_temperature)
 		bodytemperature += round(BODYTEMP_HEATING_MAX*(1-thermal_protection), 1)
 

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

@@ -37,6 +37,7 @@
 	var/list/unarmed_attacks = null          // For empty hand harm-intent attack
 	var/brute_mod = 1                        // Physical damage multiplier.
 	var/burn_mod = 1                         // Burn damage multiplier.
+	var/vision_flags = 0                     // Same flags as glasses.
 
 	// Death vars.
 	var/gibber_type = /obj/effect/gibspawner/human

code/modules/mob/living/carbon/human/species/xenomorphs/alien_species.dm

@@ -42,6 +42,8 @@
 	breath_type = null
 	poison_type = null
 
+	vision_flags = SEE_MOBS
+
 	has_organ = list(
 		"heart" =           /datum/organ/internal/heart,
 		"brain" =           /datum/organ/internal/brain/xeno,

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

@@ -265,7 +265,7 @@
 //Unless its monkey mode monkeys cant use advanced tools
 /mob/living/carbon/monkey/IsAdvancedToolUser(var/silent)
 	if(!silent)
-		src << "<span class='warning'>You don't have the dexterity to use [src]!</span>"
+		src << "<span class='warning'>You don't have the dexterity to use that!</span>"
 	return 0
 
 /mob/living/carbon/monkey/say(var/message, var/datum/language/speaking = null, var/verb="says", var/alt_name="", var/italics=0, var/message_range = world.view, var/list/used_radios = list())