(Feat) Add Build

Assets/GAME/Script/Player/Events/PlayerEvents.cs

@@ -29,6 +29,10 @@ namespace Ashwild.Player
         public static bool IsPlacingBuild { get; private set; }
         // True while the build hammer is in demolition mode (right-click held, menu closed, not placing).
         public static bool IsDemolishing { get; private set; }
+        // Composite "the player is actively building" flag — true whenever the construction menu is open,
+        // a ghost is being positioned, or the hammer is demolishing. Recomputed from those three states
+        // (never set directly) and used to widen the crosshair and to suppress item pickup while building.
+        public static bool IsBuilding { get; private set; }
         public static bool IsPaused { get; private set; }
 
         // True when a networked session is live (host or client).
@@ -103,7 +107,11 @@ namespace Ashwild.Player
 
         public static event Action<int> InventorySlotChanged;
         public static event Action<int> SelectedHotbarSlotChanged;
-        public static event Action<ItemData, int> ItemAdded;
+        // (item, quantity, isTransfer) — isTransfer is true when the stack merely moved between the
+        // player's own containers (a chest withdrawal, a refund) instead of being newly acquired from
+        // the world. Consumers that announce a gain (notifications) skip transfers; consumers that only
+        // track "the player has held this" (craft discovery) treat both the same.
+        public static event Action<ItemData, int, bool> ItemAdded;
         public static event Action<ItemData, int> ItemDropped;
         public static event Action<ItemData> ItemConsumed;
         public static event Action<ItemData, int> ItemPickedUp;
@@ -134,9 +142,11 @@ namespace Ashwild.Player
         // ============================================================
 
         public static event Action BuildMenuToggleRequested;    // the build hammer asks to open/close the construction menu
+        public static event Action BuildCancelRequested;        // the build hammer asks to cancel/exit the current ghost placement (right-click while placing)
         public static event Action<bool> BuildMenuOpenChanged;  // the construction menu opened (true) or closed (false)
         public static event Action<bool> BuildPlacingChanged;   // a build ghost started (true) / stopped (false) being positioned
         public static event Action<bool> DemolishModeChanged;   // the hammer entered (true) / left (false) demolition mode (right-click held)
+        public static event Action<bool> BuildModeChanged;      // the composite build mode turned on (true) / off (false) — see IsBuilding
         public static event Action<IReadOnlyList<BuildCostView>> BuildCostChanged; // the active build's cost to display near the crosshair (null/empty = clear)
 
         // ============================================================
@@ -256,7 +266,7 @@ namespace Ashwild.Player
 
         public static void RaiseInventorySlotChanged(int i) { InventorySlotChanged?.Invoke(i); }
         public static void RaiseSelectedHotbarSlotChanged(int i) { Log(nameof(SelectedHotbarSlotChanged)); SelectedHotbarSlotChanged?.Invoke(i); }
-        public static void RaiseItemAdded(ItemData d, int q) { Log(nameof(ItemAdded)); ItemAdded?.Invoke(d, q); }
+        public static void RaiseItemAdded(ItemData d, int q, bool isTransfer = false) { Log(nameof(ItemAdded)); ItemAdded?.Invoke(d, q, isTransfer); }
         public static void RaiseItemDropped(ItemData d, int q) { Log(nameof(ItemDropped)); ItemDropped?.Invoke(d, q); }
         public static void RaiseItemConsumed(ItemData d) { Log(nameof(ItemConsumed)); ItemConsumed?.Invoke(d); }
         public static void RaiseItemPickedUp(ItemData d, int q) { Log(nameof(ItemPickedUp)); ItemPickedUp?.Invoke(d, q); }
@@ -295,17 +305,20 @@ namespace Ashwild.Player
         public static void RaiseUnequipAnimComplete() { UnequipAnimComplete?.Invoke(); }
 
         public static void RaiseBuildMenuToggleRequested() { Log(nameof(BuildMenuToggleRequested)); BuildMenuToggleRequested?.Invoke(); }
+        public static void RaiseBuildCancelRequested() { Log(nameof(BuildCancelRequested)); BuildCancelRequested?.Invoke(); }
         public static void RaiseBuildMenuOpenChanged(bool open)
         {
             IsBuildMenuOpen = open;
             Log(nameof(BuildMenuOpenChanged));
             BuildMenuOpenChanged?.Invoke(open);
+            RefreshBuildMode();
         }
         public static void RaiseBuildPlacingChanged(bool placing)
         {
             IsPlacingBuild = placing;
             Log(nameof(BuildPlacingChanged));
             BuildPlacingChanged?.Invoke(placing);
+            RefreshBuildMode();
         }
 
         /// <summary>
@@ -328,6 +341,21 @@ namespace Ashwild.Player
             IsDemolishing = on;
             Log(nameof(DemolishModeChanged));
             DemolishModeChanged?.Invoke(on);
+            RefreshBuildMode();
+        }
+
+        /// <summary>
+        /// Recomputes the composite build-mode flag from its three sub-states and raises BuildModeChanged
+        /// only when it actually flips, so consumers (crosshair spacing, pickup gating) react exactly once
+        /// per transition instead of on every sub-state change.
+        /// </summary>
+        private static void RefreshBuildMode()
+        {
+            bool building = IsBuildMenuOpen || IsPlacingBuild || IsDemolishing;
+            if (building == IsBuilding) return;
+            IsBuilding = building;
+            Log(nameof(BuildModeChanged));
+            BuildModeChanged?.Invoke(building);
         }
 
         public static void RaiseFoodPlacedToCook(ItemData raw) { Log(nameof(FoodPlacedToCook)); FoodPlacedToCook?.Invoke(raw); }
@@ -413,6 +441,7 @@ namespace Ashwild.Player
             IsBuildMenuOpen = false;
             IsPlacingBuild = false;
             IsDemolishing = false;
+            IsBuilding = false;
             IsPaused = false;
             HoveredInteractable = null;
         }