Changeling Random Objectives (#44212)

* changeling random objectives

* addressed slarti's comments (i think :godo:)

* Apply suggestion from @slarticodefast

---------

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

Resources/Prototypes/GameRules/roundstart.yml

@@ -225,11 +225,15 @@
       range:
         min: 1
         max: 3
-  - type: AntagObjectives
-    objectives:
-    # - ChangelingSurviveObjective TODO: make a random selection of objectives when there are more of them
-    - ChangelingUniqueIdentityObjective
-    - ChangelingEscapeIdentityObjective
+  - type: AntagRandomObjectives
+    sets:
+    - groups: ChangelingObjectiveGroupDevourDummy
+      maxPicks: 1
+    - groups: ChangelingObjectiveGroupEscapeDummy
+      maxPicks: 1
+    - groups: ChangelingObjectiveGroupKillDummy
+      maxPicks: 1
+    maxDifficulty: 8
 
 - type: entity
   id: Revolutionary

Resources/Prototypes/Objectives/changeling.yml

@@ -57,3 +57,24 @@
       blacklist:
         components:
         - ChangelingRole
+
+- type: entity
+  parent: [BaseChangelingObjective, BaseKillObjective]
+  id: ChangelingKillRandomPersonObjective
+  description: This person is our prey. We must ensure they stay dead on the station.
+  components:
+  - type: Objective
+    difficulty: 2.0
+    unique: false
+  - type: TargetObjective
+    title: objective-condition-kill-maroon-title
+  - type: PickRandomPerson
+    filters:
+    # Can't have multiple objectives to kill the same person.
+    - !type:TargetObjectiveMindFilter
+      blacklist:
+        components:
+        - KillPersonCondition
+  - type: KillPersonCondition
+    requireDead: true
+    requireMaroon: true

Resources/Prototypes/Objectives/objectiveGroups.yml

@@ -135,4 +135,39 @@
   id: ThiefObjectiveGroupEscape
   weights:
     EscapeThiefShuttleObjective: 1
-#Changeling, crew, wizard, when you code it...
+
+# Changeling
+- type: weightedRandom # we need these dummy groups since its shitty code that won't stand having less than two groups before the objectives themselves
+  id: ChangelingObjectiveGroupDevourDummy
+  weights:
+    ChangelingObjectiveGroupDevour: 1
+
+- type: weightedRandom
+  id: ChangelingObjectiveGroupDevour
+  weights:
+    ChangelingUniqueIdentityObjective: 1
+    # eventually: devour most
+
+- type: weightedRandom
+  id: ChangelingObjectiveGroupEscapeDummy
+  weights:
+    ChangelingObjectiveGroupEscape: 1
+
+- type: weightedRandom
+  id: ChangelingObjectiveGroupEscape
+  weights:
+    ChangelingSurviveObjective: 0.5
+    ChangelingEscapeIdentityObjective: 1
+    # eventually: escape as a job/dept
+
+- type: weightedRandom
+  id: ChangelingObjectiveGroupKillDummy
+  weights:
+    ChangelingObjectiveGroupKill: 1
+
+- type: weightedRandom
+  id: ChangelingObjectiveGroupKill
+  weights:
+    ChangelingKillRandomPersonObjective: 1
+
+# Crew, wizard, when you code it...