objective interface

Assets/Game/Objective/ObjectiveHandler.cs

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+using UnityEngine;
+
+public abstract class ObjectiveHandler : MonoBehaviour
+{
+    // Describe the objective or target behaviour.
+    public abstract string Description { get; }
+
+    public void OnObjectiveComplete(bool condition) {
+        if (condition) {
+            OnObjectiveSuccess();
+        } else {
+            OnObjectiveFail();
+        }
+    }
+    public abstract void OnObjectiveSuccess();
+    public abstract void OnObjectiveFail();
+}

Assets/Game/Objective/ObjectiveHandler.cs.meta

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+fileFormatVersion: 2
+guid: a5c483724cc47744fa3210a866e974c1