towers fall from the sky - neat!

Assets/_Project/Scripts/Gameplay/TowerInstance.cs

@@ -55,6 +55,18 @@ namespace TD.Gameplay
                  "to exclude specific children.")]
         [SerializeField] private MeshRenderer[] tintedRenderers;
 
+        [Header("Landing (post-construction drop)")]
+        [Tooltip("World-unit height the tower visually drops from when construction completes. " +
+                 "Consumed only by the client-side fall visual (TowerLandingVisual).")]
+        [SerializeField] private float dropHeight = 15f;
+
+        [Tooltip("Seconds the fall-and-land animation takes. Single source of truth: " +
+                 "TowerCombat withholds targeting/attacks for exactly this long " +
+                 "(server-authoritative), and TowerLandingVisual uses the same value to time " +
+                 "its client-side animation, so the two stay in lockstep without duplicating " +
+                 "the number.")]
+        [SerializeField] private float landingDuration = 0.4f;
+
         // ----- Networked state ------------------------------------------------
 
         // The TowerTypeId (index into TowerPlacementManager's catalog) for this tower.
@@ -132,6 +144,13 @@ namespace TD.Gameplay
         /// <summary>The footprint anchor tile (SW corner, world-tile coords).</summary>
         public Vector2Int AnchorTile => anchorTile.Value;
 
+        /// <summary>World-unit height the post-construction drop animation falls from.</summary>
+        public float DropHeight => dropHeight;
+
+        /// <summary>Seconds the drop/land animation takes. Also how long TowerCombat withholds
+        /// targeting/attacks after construction completes.</summary>
+        public float LandingDuration => landingDuration;
+
         // ----- ISelectable ----------------------------------------------------
 
         // Absolute world-unit margin that the selection ring extends beyond the
@@ -171,6 +190,16 @@ namespace TD.Gameplay
         /// <summary>Fired on ALL peers when this tower finishes construction and spawns.</summary>
         public event System.Action OnBuiltClient;
 
+        /// <summary>Fired locally on this peer when the client-side fall/land animation
+        /// finishes (see <see cref="TD.Combat.TowerLandingVisual"/>). Analogous to
+        /// <see cref="OnBuiltClient"/>, but delayed by <see cref="LandingDuration"/>.</summary>
+        public event System.Action OnLandedClient;
+
+        /// <summary>Called by <see cref="TD.Combat.TowerLandingVisual"/> when its local
+        /// fall/land animation finishes. Purely local — never invoked on a dedicated
+        /// (non-client) server, which never runs that animation.</summary>
+        public void ClientNotifyLanded() => OnLandedClient?.Invoke();
+
         // ----- Server-only initialization -------------------------------------
 
         /// <summary>