Christmas trees now grant gifts. (#13118)

* Christmas trees now grant gifts.

* docs

* add holiday requirements, fix sound.

* doc

* remove redundant stuff

* rename GiftPackin to RandomGift.

* a word

* Update Content.Server/Holiday/Christmas/LimitedItemGiverSystem.cs

Co-authored-by: Leon Friedrich <60421075+ElectroJr@users.noreply.github.com>

Co-authored-by: moonheart08 <moonheart08@users.noreply.github.com>
Co-authored-by: Leon Friedrich <60421075+ElectroJr@users.noreply.github.com>

Resources/Locale/en-US/holiday/gifts.ftl

@@ -0,0 +1,3 @@
+gift-packin-contains = This present appears to contain {INDEFINITE($name)} {$name}.
+christmas-tree-got-gift = After a bit of digging, you find a present with your name on it!
+christmas-tree-no-gift = There isn't a gift under the tree for you...

Resources/Prototypes/Entities/Objects/Decoration/flora.yml

@@ -334,6 +334,7 @@
 - type: entity
   parent: BaseTreeConifer
   id: FloraTreeChristmas02
+  suffix: PresentsGiver
   name: christmas tree
   components:
   - type: Sprite
@@ -346,6 +347,19 @@
       density: 4500
       layer:
       - WallLayer
+  - type: LimitedItemGiver
+    spawnEntries:
+      - id: PresentRandom
+        orGroup: present
+      - id: PresentRandomUnsafe
+        prob: 0.5
+        orGroup: present
+      - id: PresentRandomInsane
+        prob: 0.2
+        orGroup: present
+    receivedPopup: christmas-tree-got-gift
+    deniedPopup: christmas-tree-no-gift
+    requiredHoliday: FestiveSeason
 
 - type: entity
   parent: BaseTreeConifer

Resources/Prototypes/Entities/Objects/Decoration/present.yml

@@ -1,32 +1,53 @@
 - type: entity
-  id: Present
-  parent: BaseStorageItem
+  id: PresentBase
   name: Present
-  suffix: Empty
   description: A little box with incredible surprises inside.
+  abstract: true
   components:
   - type: Sprite
     sprite: Objects/Decoration/present.rsi
     netsync: false
     layers:
       - state: present
+
+- type: entity
+  id: Present
+  parent: [PresentBase, BaseStorageItem]
+  suffix: Empty
+  components:
   - type: Item
     size: 30
   - type: Storage
     capacity: 30
 
 - type: entity
-  id: PresentRandom
-  parent: BaseItem
-  name: Present
-  suffix: Filled Random
-  description: A little box with incredible surprises inside.
+  id: PresentRandomUnsafe
+  parent: [PresentBase, BaseItem]
+  suffix: Filled Unsafe
+  components:
+  - type: RandomGift
+    wrapper: PresentTrash
+    sound:
+      path: /Audio/Effects/unwrap.ogg
+    insaneMode: false
+    contentsViewers:
+      components:
+      - Ghost
+      - Santa
+
+- type: entity
+  id: PresentRandomInsane
+  parent: PresentRandomUnsafe
+  suffix: Filled Insane
+  components:
+    - type: RandomGift
+      insaneMode: true
+
+- type: entity
+  id: PresentRandom
+  parent: [PresentBase, BaseItem]
+  suffix: Filled Safe
   components:
-  - type: Sprite
-    sprite: Objects/Decoration/present.rsi
-    netsync: false
-    layers:
-      - state: present
   - type: SpawnItemsOnUse
     items:
       - id: PresentTrash