fix: fix APC behavior in unpowered areas (#25642)

* fix: make unpowered areas without APCs actually unpowered

* Update code/modules/power/powernets/local_powernet.dm

Co-authored-by: 1080pCat <96908085+1080pCat@users.noreply.github.com>
Signed-off-by: warriorstar-orion <orion@snowfrost.garden>

---------

Signed-off-by: warriorstar-orion <orion@snowfrost.garden>
Co-authored-by: 1080pCat <96908085+1080pCat@users.noreply.github.com>

code/modules/power/apc/apc.dm

@@ -166,8 +166,15 @@
 
 /obj/machinery/power/apc/Initialize(mapload)
 	. = ..()
+
+	var/area/A = get_area(src)
+
+	if(A.powernet && !A.powernet.powernet_apc)
+		A.powernet.powernet_apc = src
+
 	if(!mapload)
 		return
+
 	electronics_state = APC_ELECTRONICS_SECURED
 	// is starting with a power cell installed, create it and set its charge level
 	if(cell_type)
@@ -175,9 +182,6 @@
 		cell.maxcharge = cell_type	// cell_type is maximum charge (old default was 1000 or 2500 (values one and two respectively)
 		cell.charge = start_charge * cell.maxcharge / 100 		// (convert percentage to actual value)
 
-	var/area/A = get_area(src)
-
-
 	//if area isn't specified use current
 	if(keep_preset_name)
 		if(isarea(A))

code/modules/power/lights.dm

@@ -618,13 +618,13 @@
 // if a light is turned off, it won't activate emergency power
 /obj/machinery/light/proc/turned_off()
 	var/area/machine_area = get_area(src)
-	return !machine_area.lightswitch && machine_area.powernet.lighting_powered
+	return !machine_area.lightswitch && machine_area.powernet.has_power(PW_CHANNEL_LIGHTING)
 
 // returns whether this light has power
 // true if area has power and lightswitch is on
 /obj/machinery/light/has_power()
 	var/area/machine_area = get_area(src)
-	return machine_area.lightswitch && machine_area.powernet.lighting_powered
+	return machine_area.lightswitch && machine_area.powernet.has_power(PW_CHANNEL_LIGHTING)
 
 // attempts to set emergency lights
 /obj/machinery/light/proc/set_emergency_lights()
@@ -809,7 +809,7 @@
 /obj/machinery/light/power_change()
 	var/area/A = get_area(src)
 	if(A)
-		seton(A.lightswitch && A.powernet.lighting_powered)
+		seton(A.lightswitch && A.powernet.has_power(PW_CHANNEL_LIGHTING))
 
 // called when on fire
 

code/modules/power/powernets/local_powernet.dm

@@ -105,7 +105,9 @@
 		return FALSE
 	if(power_flags & PW_ALWAYS_POWERED) //if this powernet is always powered, we always return TRUE
 		return TRUE
-	if(powernet_apc?.stat & (BROKEN|MAINT)) //no working apc, no power
+	if(!powernet_apc)
+		return FALSE
+	if(powernet_apc.stat & (BROKEN|MAINT)) // no working apc, no power
 		return FALSE
 
 	switch(channel)