Feat: add keybinds to AI for saved locs (Shift + num) (ParadiseSS13#327)

* AI: Создание биндов для локаций камер

* Update code/modules/keybindings/bindings_ai.dm

* Update code/modules/keybindings/bindings_ai.dm

* Update code/modules/keybindings/bindings_ai.dm

* Update code/modules/keybindings/bindings_ai.dm

* Update code/modules/keybindings/bindings_ai.dm

* больше процов богу процов.

* Убран лишний дебаг текст, заменен тип сообщения.

* Refine code

* clean whitespaces

* fix var typo and clean up logic

Co-authored-by: Aziz Chynaliev <azizonkg@gmail.com>

Fix AI camera cycle logic for keybinds

code/modules/keybindings/bindings_ai.dm

@@ -1,6 +1,59 @@
+/mob/living/silicon/ai/var/current_camera = 0
+
 /mob/living/silicon/ai/key_down(_key, client/user)
-	switch(_key)
-		if("4")
-			a_intent_change(INTENT_HOTKEY_LEFT)
+	if(user.keys_held["Shift"])
+		if(text2num(_key) != null)
+			if(set_camera_by_index(user, text2num(_key)))
+				update_binded_camera(user)
 			return
-	return ..()
+		return ..()
+	else
+		switch(_key)
+			if("4")
+				a_intent_change(INTENT_HOTKEY_LEFT)
+				return
+			if("N")
+				if(check_for_binded_cameras(user))
+					current_camera_next(user)
+					update_binded_camera(user)
+					return
+			if("B")
+				if(check_for_binded_cameras(user))
+					current_camera_back(user)
+					update_binded_camera(user)
+					return
+		return ..()
+
+/mob/living/silicon/ai/proc/check_for_binded_cameras(client/user)
+	if(!length(stored_locations))
+		to_chat(user, "<span class='warning'>You have no stored camera positions</span>")
+		return 0
+	return 1
+
+/mob/living/silicon/ai/proc/set_camera_by_index(client/user, var/camnum)
+	var/camnum_length = length(stored_locations)
+	if(camnum > camnum_length || (camnum == 0 && camnum_length < 10))
+		to_chat(user, "<span class='warning'>You have no stored camera on [camnum] position</span>")
+		return 0
+	if(camnum == 0)
+		camnum = 10
+	current_camera = camnum
+	return 1
+
+/mob/living/silicon/ai/proc/update_binded_camera(client/user)
+	var/camname
+	camname = stored_locations[current_camera]
+	ai_goto_location(camname)
+	to_chat(user, "<span class='notice'>Now you on camera position: [camname]</span>")
+
+/mob/living/silicon/ai/proc/current_camera_next(client/user)
+	if(current_camera >= length(stored_locations))
+		current_camera = 1
+	else
+		current_camera += 1
+
+/mob/living/silicon/ai/proc/current_camera_back(client/user)
+	if(current_camera <= 1)
+		current_camera = length(stored_locations)
+	else
+		current_camera -= 1