ghost locator maints loot (#32323)

* implement

* react to revenants/AI eye

* rare maints loot

* sprite

* description

* review

Co-authored-by: slarticodefast <161409025+slarticodefast@users.noreply.github.com>

* do changes

* stats

* networked

---------

Co-authored-by: slarticodefast <161409025+slarticodefast@users.noreply.github.com>

Content.Shared/Ghost/SpectralComponent.cs

@@ -0,0 +1,9 @@
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Ghost;
+
+/// <summary>
+/// Marker component to identify "ghostly" entities.
+/// </summary>
+[RegisterComponent, NetworkedComponent]
+public sealed partial class SpectralComponent : Component { }

Resources/Prototypes/Entities/Markers/Spawners/Random/maintenance.yml

@@ -289,6 +289,7 @@
       - id: ResearchDisk5000
       - id: PetCarrier
       - id: DrinkMopwataBottleRandom
+      - id: SpectralLocator
       - id: LidSalami
         weight: 0.05
 

Resources/Prototypes/Entities/Mobs/NPCs/revenant.yml

@@ -8,6 +8,7 @@
   components:
   - type: Input
     context: "ghost"
+  - type: Spectral
   - type: MovementSpeedModifier
     baseWalkSpeed: 6
     baseSprintSpeed: 6

Resources/Prototypes/Entities/Mobs/Player/admin_ghost.yml

@@ -1,5 +1,5 @@
 - type: entity
-  parent: [MobObserver, InventoryBase]
+  parent: [MobObserverBase, InventoryBase]
   id: AdminObserver
   name: admin observer
   categories: [ HideSpawnMenu ]

Resources/Prototypes/Entities/Mobs/Player/observer.yml

@@ -28,11 +28,13 @@
         layer:
         - GhostImpassable
 
+# shared parent between aghosts, replay spectators and normal observers
 - type: entity
   parent:
   - Incorporeal
   - BaseMob
-  id: MobObserver
+  id: MobObserverBase
+  abstract: true
   name: observer
   description: Boo!
   categories: [ HideSpawnMenu ]
@@ -61,6 +63,13 @@
     tags:
     - BypassInteractionRangeChecks
 
+# proto for player ghosts specifically
+- type: entity
+  parent: MobObserverBase
+  id: MobObserver
+  components:
+  - type: Spectral
+
 - type: entity
   id: ActionGhostBoo
   name: Boo!

Resources/Prototypes/Entities/Mobs/Player/replay_observer.yml

@@ -1,5 +1,5 @@
 - type: entity
-  parent: MobObserver
+  parent: MobObserverBase
   id: ReplayObserver
   categories: [ HideSpawnMenu ]
   save: false

Resources/Prototypes/Entities/Objects/Fun/spectral_locator.yml

@@ -0,0 +1,58 @@
+- type: entity
+  id: SpectralLocatorUnpowered
+  parent: BaseItem
+  name: spectral locator
+  description: Appears to be a modified anomaly locator. Seems very old.
+  suffix: Unpowered
+  components:
+  - type: Sprite
+    sprite: Objects/Fun/spectrallocator.rsi
+    layers:
+      - state: icon
+      - state: screen
+        shader: unshaded
+        visible: false
+        map: ["enum.ToggleVisuals.Layer"]
+  - type: Appearance
+  - type: GenericVisualizer
+    visuals:
+      enum.ToggleVisuals.Toggled:
+        enum.ToggleVisuals.Layer:
+          True: { visible: true }
+          False: { visible: false }
+  - type: ItemToggle
+  - type: ProximityBeeper
+  - type: ProximityDetector
+    range: 12
+    criteria:
+      components:
+      - Spectral # reacts to AI eye, intentional
+  - type: Beeper
+    isMuted: true
+    minBeepInterval: 0.25
+    maxBeepInterval: 0.5
+    beepSound:
+      path: "/Audio/Items/locator_beep.ogg"
+      params:
+        maxDistance: 1
+        volume: -8
+
+- type: entity
+  id: SpectralLocator
+  parent: [ SpectralLocatorUnpowered, PowerCellSlotSmallItem ]
+  suffix: Powered
+  components:
+  - type: PowerCellDraw
+    drawRate: 1
+    useRate: 0
+  - type: ToggleCellDraw
+
+- type: entity
+  id: SpectralLocatorEmpty
+  parent: SpectralLocator
+  suffix: Empty
+  components:
+  - type: ItemSlots
+    slots:
+      cell_slot:
+        name: power-cell-slot-component-slot-name-default

Resources/Textures/Objects/Fun/spectrallocator.rsi/meta.json

@@ -0,0 +1,33 @@
+{
+  "version": 1,
+  "license": "CC0-1.0",
+  "copyright": "Originally created by EmoGarbage404 (github) for Space Station 14, modified by Ilya246 (github) for Space Station 14.",
+  "size": {
+    "x": 32,
+    "y": 32
+  },
+  "states": [
+    {
+      "name": "icon"
+    },
+    {
+      "name": "inhand-left",
+      "directions": 4
+    },
+    {
+      "name": "inhand-right",
+      "directions": 4
+    },
+    {
+      "name": "screen",
+      "delays": [
+        [
+          0.2,
+          0.2,
+          0.2,
+          0.2
+        ]
+      ]
+    }
+  ]
+}