[MIRROR] Fixes negative bodytemp in some cases and shivering not doing anything unless you're already very cold (#5674)

* Fixes negative bodytemp in some cases and shivering not doing anything unless you're already very cold (#35796)

* - Stop subtracting from bodytemp please
- Also fixes shivering

* - Jesus christ why did you make me do this

* - missed one

* Fixes negative bodytemp in some cases and shivering not doing anything unless you're already very cold

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

@@ -65,9 +65,9 @@
 			//Place is hotter than we are
 			var/thermal_protection = heat_protection //This returns a 0 - 1 value, which corresponds to the percentage of heat protection.
 			if(thermal_protection < 1)
-				bodytemperature += (1-thermal_protection) * ((loc_temp - bodytemperature) / BODYTEMP_HEAT_DIVISOR)
+				adjust_bodytemperature((1-thermal_protection) * ((loc_temp - bodytemperature) / BODYTEMP_HEAT_DIVISOR))
 		else
-			bodytemperature += 1 * ((loc_temp - bodytemperature) / BODYTEMP_HEAT_DIVISOR)
+			adjust_bodytemperature(1 * ((loc_temp - bodytemperature) / BODYTEMP_HEAT_DIVISOR))
 
 	if(bodytemperature > BODYTEMP_HEAT_DAMAGE_LIMIT)
 		//Body temperature is too hot.

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

@@ -50,5 +50,5 @@
 /mob/living/carbon/alien/handle_fire()//Aliens on fire code
 	if(..())
 		return
-	bodytemperature += BODYTEMP_HEATING_MAX //If you're on fire, you heat up!
+	adjust_bodytemperature(BODYTEMP_HEATING_MAX) //If you're on fire, you heat up!
 	return