Initial commit

Assets/LiveOpsExamples/Scripts/Snack.cs

@@ -0,0 +1,45 @@
+using System;
+using UnityEngine;
+
+namespace LiveOpsExamples
+{
+  /// <summary>
+  /// A collectible snack. Bobs gently (sine, 0.08 world units amplitude, 650 ms
+  /// half-period — mirrors the Phaser yoyo tween) and raises <see cref="Collected"/>
+  /// when the player overlaps its trigger, then destroys itself.
+  /// </summary>
+  [RequireComponent(typeof(SpriteRenderer))]
+  public class Snack : MonoBehaviour
+  {
+    private const float BobAmplitude = 0.08f;
+    private const float BobHalfPeriodSeconds = 0.65f;
+
+    public SpriteRenderer Player { get; set; }
+
+    public event Action<Snack> Collected;
+
+    private Vector3 _basePosition;
+    private float _elapsed;
+
+    private void Start()
+    {
+      _basePosition = transform.position;
+    }
+
+    private void Update()
+    {
+      _elapsed += Time.deltaTime;
+      var offset = Mathf.Sin(_elapsed * Mathf.PI / BobHalfPeriodSeconds) * BobAmplitude;
+      transform.position = _basePosition + new Vector3(0f, offset, 0f);
+    }
+
+    private void OnTriggerEnter2D(Collider2D other)
+    {
+      if (Player == null || other.gameObject != Player.gameObject)
+        return;
+
+      Collected?.Invoke(this);
+      Destroy(gameObject);
+    }
+  }
+}