Inventory: per-player items backbone (DR-026 Phase 0)

Data-driven ItemDatabase catalog + per-player replicated InventorySlot ([GhostField] OwnerSendType.All, a StatModifier twin). Harvest reroutes to the firing player's personal inventory (optional ComponentLookup<GhostOwner> in ResourceHarvestSystem; remainder/un-owned -> ledger); the G-key InventoryDepositRequest RPC moves the bag into the shared ledger the build economy spends. Catalog asset (Aether/Ore/Biomass + Stone Pickaxe) wired into the Gameplay subscene; read-only HUD inventory panel. ushort ItemId subsumes ResourceId; byte Category/Tier baked for gear-tier progression. Session-only (no SaveData bump). Play-validated host+client: catalog baked into both worlds, the re-baked player ghost carries InventorySlot with a clean handshake, a server write replicates to the client owner, the deposit RPC round-trips, and the HUD renders catalog names. See DR-026. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-08 09:43:31 -07:00
parent 1ed2aa46c5
commit 599b9b4255
37 changed files with 848 additions and 1 deletions
@@ -0,0 +1,54 @@
+using System.Collections.Generic;
+using ProjectM.Simulation;
+using Unity.Collections;
+using Unity.Entities;
+using UnityEngine;
+
+namespace ProjectM.Authoring
+{
+    /// <summary>
+    /// Bakes the designer-authored item definitions into a single ItemDatabase blob singleton (immutable,
+    /// shared, Burst-fast), mirroring AbilityDatabaseAuthoring. Place ONE in the gameplay subscene; it streams
+    /// identically into the client and server worlds (config, not replicated). DependsOn each definition so a
+    /// value change re-bakes the blob. Runtime lookup is ID-keyed (ItemDatabaseBlob.TryGetItem), so the list
+    /// order here does not matter and inserting an item never renumbers existing ids.
+    /// </summary>
+    public class ItemDatabaseAuthoring : MonoBehaviour
+    {
+        [Tooltip("All item definitions in the game (resources + tools/gear). Looked up at runtime by ItemId.")]
+        public List<ItemDefinition> Items = new List<ItemDefinition>();
+
+        private class DatabaseBaker : Baker<ItemDatabaseAuthoring>
+        {
+            public override void Bake(ItemDatabaseAuthoring authoring)
+            {
+                var entity = GetEntity(TransformUsageFlags.None);
+
+                int count = authoring.Items != null ? authoring.Items.Count : 0;
+
+                var builder = new BlobBuilder(Allocator.Temp);
+                ref var root = ref builder.ConstructRoot<ItemDatabaseBlob>();
+                var arr = builder.Allocate(ref root.Items, count);
+                for (int i = 0; i < count; i++)
+                {
+                    var def = authoring.Items[i];
+                    if (def == null) { arr[i] = default; continue; }
+                    DependsOn(def);
+                    arr[i] = new ItemDefBlob
+                    {
+                        ItemId = (ushort)def.ItemId,
+                        Category = def.Category,
+                        Tier = def.Tier,
+                        StackMax = def.StackMax,
+                        Name = def.DisplayName,
+                    };
+                }
+
+                var blob = builder.CreateBlobAssetReference<ItemDatabaseBlob>(Allocator.Persistent);
+                builder.Dispose();
+                AddBlobAsset(ref blob, out _);
+                AddComponent(entity, new ItemDatabase { Value = blob });
+            }
+        }
+    }
+}