Area tweaks (#20391)

Reworked area changes and power define channels

No player visible changes (hopefully)

code/modules/mob/abstract/freelook/blueprints/blueprints.dm

@@ -67,7 +67,7 @@
 
 	var/area/A = finalize_area(area_name)
 	for(var/turf/T in selected_turfs)
-		ChangeArea(T, A)
+		T.change_area(T.loc, A)
 	remove_selection() // Reset the selection for clarity.
 
 /mob/abstract/eye/blueprints/proc/finalize_area(var/area_name)
@@ -99,7 +99,7 @@
 	if(SSodyssey.scenario && (GET_Z(owner) in SSodyssey.scenario_zlevels))
 		background_area = SSodyssey.scenario.base_area
 	for(var/turf/T in A.contents)
-		ChangeArea(T, background_area)
+		T.change_area(T.loc, background_area)
 	if(!locate(/turf) in A)
 		qdel(A)
 
@@ -319,7 +319,7 @@
 	if(SSodyssey.scenario && (GET_Z(owner) in SSodyssey.scenario_zlevels))
 		background_area = SSodyssey.scenario.base_area
 	for(var/turf/T in A.contents)
-		ChangeArea(T, background_area)
+		T.change_area(T.loc, background_area)
 	if(!(locate(/turf) in A))
 		qdel(A) // uh oh, is this safe?
 

code/modules/mob/living/silicon/ai/ai.dm

@@ -318,7 +318,7 @@ var/list/ai_verbs_default = list(
 	name = "power supply"
 	active_power_usage = 50000 // Station AIs use significant amounts of power. This, when combined with charged SMES should mean AI lasts for 1hr without external power.
 	use_power = POWER_USE_ACTIVE
-	power_channel = EQUIP
+	power_channel = AREA_USAGE_EQUIP
 	var/mob/living/silicon/ai/powered_ai
 	invisibility = 100