✨ Complete resource manager

Scenes/Root.tscn

@@ -1,6 +1,7 @@
-[gd_scene load_steps=6 format=3 uid="uid://c22aprj452aha"]
+[gd_scene load_steps=7 format=3 uid="uid://c22aprj452aha"]
 
 [ext_resource type="Script" uid="uid://cudpc3w17mbsw" path="res://Scripts/System/GridManager.cs" id="1_knkkn"]
+[ext_resource type="Script" uid="uid://dfi2snip78eq6" path="res://Scripts/System/ResourceManager.cs" id="1_pl8e4"]
 [ext_resource type="Script" uid="uid://cfbj72nm0eovg" path="res://Scripts/System/BuildingRegistry.cs" id="1_sxhdm"]
 [ext_resource type="Script" uid="uid://cugfbvw70clgd" path="res://Scripts/System/NaturalResourceGenerator.cs" id="2_oss8w"]
 [ext_resource type="Script" uid="uid://bx1wj7gn6vrqe" path="res://Scripts/System/PlacementManager.cs" id="2_sxhdm"]
@@ -8,6 +9,9 @@
 
 [node name="Root" type="Node2D"]
 
+[node name="ResourceSystem" type="Node" parent="."]
+script = ExtResource("1_pl8e4")
+
 [node name="BuildingRegistry" type="Node" parent="."]
 script = ExtResource("1_sxhdm")
 
@@ -19,9 +23,10 @@ Registry = NodePath("../BuildingRegistry")
 [node name="GridSystem" type="Node2D" parent="."]
 script = ExtResource("1_knkkn")
 
-[node name="PlacementSystem" type="Node2D" parent="." node_paths=PackedStringArray("Grid", "Registry")]
+[node name="PlacementSystem" type="Node2D" parent="." node_paths=PackedStringArray("Grid", "Inventory", "Registry")]
 script = ExtResource("2_sxhdm")
 Grid = NodePath("../GridSystem")
+Inventory = NodePath("../ResourceSystem")
 Registry = NodePath("../BuildingRegistry")
 
 [node name="Player" parent="." instance=ExtResource("3_oss8w")]

Scripts/System/BuildingRegistry.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Godot;
+using static System.Int32;
 
 namespace AceFieldNewHorizon.Scripts.System;
 
@@ -101,12 +102,22 @@ public partial class BuildingRegistry : Node
 				{
 					int val;
 					var obj = costDict[mat];
-					if (obj.VariantType == Variant.Type.PackedInt64Array)
+					switch (obj.VariantType)
-						val = (int)obj.AsInt64();
+					{
-					else if (obj.VariantType == Variant.Type.PackedInt32Array)
+						case Variant.Type.PackedInt64Array:
-						val = obj.AsInt32();
+							val = (int)obj.AsInt64();
-					else
+							break;
-						int.TryParse(obj.ToString(), out val);
+						case Variant.Type.PackedInt32Array:
+							val = obj.AsInt32();
+							break;
+						case Variant.Type.Float:
+							val = (int)obj.AsDouble();
+							break;
+						default:
+							if (!TryParse(obj.ToString(), out val))
+								GD.PrintErr($"[BuildingRegistry] Failed to parse cost for '{key}': {obj.ToString()}");
+							break;
+					}
 					cost[mat] = val;
 				}
 			}
@@ -120,7 +131,7 @@ public partial class BuildingRegistry : Node
 				else if (dObj.VariantType == Variant.Type.PackedInt32Array)
 					durability = dObj.AsInt32();
 				else
-					int.TryParse(dObj.ToString(), out durability);
+					TryParse(dObj.ToString(), out durability);
 			}
 
 			// Parse buildTime

Scripts/System/PlacementManager.cs

@@ -9,11 +9,12 @@ namespace AceFieldNewHorizon.Scripts.System;
 public partial class PlacementManager : Node2D
 {
     [Export] public GridManager Grid { get; set; }
+    [Export] public ResourceManager Inventory { get; set; }
     [Export] public BuildingRegistry Registry { get; set; }
     [Export] public int MaxConcurrentBuilds { get; set; } = 6; // Make it adjustable in editor
 
     private static readonly List<string> BuildableTiles = ["wall", "miner"];
-    private readonly List<BuildTask> _activeBuilds = new();
+    private readonly Dictionary<Node2D, BuildTask> _buildTasks = new();
     private AudioStreamPlayer _completionSound;
 
     public override void _Ready()
@@ -33,10 +34,16 @@ public partial class PlacementManager : Node2D
     private void OnBuildCompleted()
     {
         // Remove all completed builds
-        _activeBuilds.RemoveAll(task => task.IsCompleted);
+        var completed = _buildTasks.Where(kvp => kvp.Value.IsCompleted)
+                                .Select(kvp => kvp.Key)
+                                .ToList();
+        foreach (var key in completed)
+        {
+            _buildTasks.Remove(key);
+        }
         
         // If no builds left, play the completion sound
-        if (_activeBuilds.Count == 0)
+        if (_buildTasks.Count == 0)
         {
             _completionSound.Play();
         }
@@ -46,30 +53,34 @@ public partial class PlacementManager : Node2D
     private bool CanStartNewBuild()
     {
         // Remove completed builds
-        _activeBuilds.RemoveAll(task => task.IsCompleted);
+        var completed = _buildTasks.Where(kvp => kvp.Value.IsCompleted)
-        return _activeBuilds.Count < MaxConcurrentBuilds;
+                                .Select(kvp => kvp.Key)
+                                .ToList();
+        foreach (var key in completed)
+        {
+            _buildTasks.Remove(key);
+        }
+        
+        return _buildTasks.Count < MaxConcurrentBuilds;
     }
 
-    private class BuildTask : IDisposable
+    private class BuildTask(Action onCompleted) : IDisposable
     {
-        private readonly Action _onCompleted;
         public bool IsCompleted { get; private set; }
+        public bool WasCancelled { get; private set; }
 
-        public BuildTask(Action onCompleted)
+        public void Complete(bool wasCancelled = false)
-        {
-            _onCompleted = onCompleted;
-        }
-
-        public void Complete()
         {
             if (IsCompleted) return;
+            
             IsCompleted = true;
-            _onCompleted?.Invoke();
+            WasCancelled = wasCancelled;
+            onCompleted?.Invoke();
         }
 
         public void Dispose()
         {
-            Complete();
+            Complete(true); // Mark as cancelled if disposed before completion
         }
     }
 
@@ -188,6 +199,13 @@ public partial class PlacementManager : Node2D
                 return;
             }
 
+            // Consume resources first
+            if (!ConsumeBuildingResources(_currentBuildingId))
+            {
+                // Optionally show feedback to player that they can't afford this building
+                return;
+            }
+
             var scene = building.Scene;
             var buildingInstance = (BaseTile)scene.Instantiate();
             buildingInstance.RotationDegrees = _currentRotation;
@@ -195,13 +213,36 @@ public partial class PlacementManager : Node2D
             buildingInstance.Position = _ghostBuilding.Position;
             AddChild(buildingInstance);
 
+            // Check if area is free before placing
+            if (!IsAreaFree(_hoveredCell, building.Size, _currentRotation, building.Layer))
+            {
+                RefundBuildingResources(_currentBuildingId);
+                buildingInstance.QueueFree();
+                return;
+            }
+
+            // Occupy the area
             Grid.OccupyArea(_hoveredCell, buildingInstance, building.Size, _currentRotation, building.Layer);
 
             if (building.BuildTime > 0f)
             {
                 var buildTask = new BuildTask(OnBuildCompleted);
-                _activeBuilds.Add(buildTask);
+                _buildTasks[buildingInstance] = buildTask;
-                buildingInstance.StartConstruction(building.BuildTime, buildTask.Complete);
+                
+                buildingInstance.StartConstruction(building.BuildTime, () => {
+                    // On construction complete
+                    if (_buildTasks.TryGetValue(buildingInstance, out var task))
+                    {
+                        if (task.WasCancelled)
+                        {
+                            RefundBuildingResources(_currentBuildingId);
+                            Grid.FreeArea(_hoveredCell, building.Size, _currentRotation, building.Layer);
+                            buildingInstance.QueueFree();
+                        }
+                        task.Complete();
+                        _buildTasks.Remove(buildingInstance);
+                    }
+                });
             }
         }
 
@@ -226,14 +267,64 @@ public partial class PlacementManager : Node2D
         }
     }
 
+    public override void _ExitTree()
+    {
+        base._ExitTree();
+        _buildTasks.Clear();
+    }
+
+    private bool CanAffordBuilding(string buildingId)
+    {
+        if (Inventory == null) return false;
+        
+        var buildingData = Registry.GetBuilding(buildingId);
+        if (buildingData == null) return false;
+        
+        // Check if we have enough of each required resource
+        foreach (var (resourceId, amount) in buildingData.Cost)
+            if (!Inventory.HasResource(resourceId, amount))
+                return false;
+        return true;
+    }
+    
+    private bool ConsumeBuildingResources(string buildingId)
+    {
+        if (Inventory == null) return false;
+        
+        var buildingData = Registry.GetBuilding(buildingId);
+        if (buildingData == null) return false;
+        
+        // First verify we can afford it
+        if (!CanAffordBuilding(buildingId)) return false;
+        
+        // Then consume each resource
+        foreach (var (resourceId, amount) in buildingData.Cost)
+            Inventory.RemoveResource(resourceId, amount);
+        
+        return true;
+    }
+    
+    private void RefundBuildingResources(string buildingId)
+    {
+        if (Inventory == null) return;
+        
+        var buildingData = Registry.GetBuilding(buildingId);
+        if (buildingData == null) return;
+        
+        // Refund each resource
+        foreach (var (resourceId, amount) in buildingData.Cost)
+        {
+            Inventory.AddResource(resourceId, amount);
+        }
+    }
+
     private bool CanPlaceBuilding()
     {
         var buildingData = Registry.GetBuilding(_currentBuildingId);
         if (buildingData == null) return false;
 
-        // Check if rotation is allowed
+        // Check if we can afford the building
-        if (!buildingData.IsRotationAllowed(_currentRotation))
+        if (!CanAffordBuilding(_currentBuildingId)) return false;
-            return false;
 
         // Check if area is free
         var rotatedSize = buildingData.GetRotatedSize(_currentRotation);
@@ -250,6 +341,11 @@ public partial class PlacementManager : Node2D
             _ => []
         };
     }
+
+    private bool IsAreaFree(Vector2I topLeft, Vector2I size, float rotation, GridLayer layer)
+    {
+        return !Grid.IsAreaOccupied(topLeft, size, rotation, GetBlockingLayers(layer));
+    }
 }
 
 public static class GridManagerExtensions

Scripts/System/ResourceManager.cs

@@ -0,0 +1,145 @@
+using Godot;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace AceFieldNewHorizon.Scripts.System;
+
+public partial class ResourceManager : Node
+{
+    // Dictionary to store resources with their IDs and quantities
+    private readonly Dictionary<string, int> _resources = new();
+    private static readonly StringName LoggerName = "ResourceManager";
+
+    // Event for when resource amounts change
+    [Signal]
+    public delegate void OnResourceChangedEventHandler(string resourceId, int newAmount);
+
+    public override void _Ready()
+    {
+        base._Ready();
+        GD.Print($"[{LoggerName}] ResourceManager initialized");
+    }
+
+    // Add resources of a specific type
+    public void AddResource(string resourceId, int amount = 1)
+    {
+        if (amount <= 0) 
+        {
+            GD.PushWarning($"[{LoggerName}] Attempted to add non-positive amount ({amount}) for resource: {resourceId}");
+            return;
+        }
+        
+        bool isNew = !_resources.ContainsKey(resourceId);
+        
+        if (!_resources.TryAdd(resourceId, amount))
+        {
+            var oldAmount = _resources[resourceId];
+            _resources[resourceId] += amount;
+            GD.Print($"[{LoggerName}] Added {amount} {resourceId}. New total: {_resources[resourceId]} (was {oldAmount})");
+        }
+        else
+        {
+            GD.Print($"[{LoggerName}] Added new resource: {resourceId} with amount: {amount}");
+        }
+
+        EmitSignal(nameof(OnResourceChanged), resourceId, _resources[resourceId]);
+    }
+
+    // Remove resources of a specific type
+    public bool RemoveResource(string resourceId, int amount = 1)
+    {
+        if (amount <= 0) 
+        {
+            GD.PushWarning($"[{LoggerName}] Attempted to remove non-positive amount ({amount}) for resource: {resourceId}");
+            return false;
+        }
+        
+        if (!_resources.ContainsKey(resourceId))
+        {
+            GD.Print($"[{LoggerName}] Failed to remove {amount} {resourceId}: Resource not found");
+            return false;
+        }
+        
+        if (_resources[resourceId] < amount)
+        {
+            GD.Print($"[{LoggerName}] Insufficient {resourceId}. Requested: {amount}, Available: {_resources[resourceId]}");
+            return false;
+        }
+        
+        var oldAmount = _resources[resourceId];
+        _resources[resourceId] -= amount;
+        
+        GD.Print($"[{LoggerName}] Removed {amount} {resourceId}. New total: {_resources[resourceId]} (was {oldAmount})");
+        
+        // Remove the entry if quantity reaches zero
+        if (_resources[resourceId] <= 0)
+        {
+            _resources.Remove(resourceId);
+            GD.Print($"[{LoggerName}] Removed resource entry for {resourceId} (reached zero)");
+            EmitSignal(nameof(OnResourceChanged), resourceId, 0);
+        }
+        else
+        {
+            EmitSignal(nameof(OnResourceChanged), resourceId, _resources[resourceId]);
+        }
+        
+        return true;
+    }
+
+    // Get the current amount of a specific resource
+    public int GetResourceAmount(string resourceId)
+    {
+        // Silently return 0 for non-existent resources
+        return _resources.GetValueOrDefault(resourceId, 0);
+    }
+
+    // Check if there are at least 'amount' of a specific resource
+    public bool HasResource(string resourceId, int amount = 1)
+    {
+        if (amount <= 0) return true; // Always true for zero or negative amounts
+        
+        var exists = _resources.TryGetValue(resourceId, out var currentAmount);
+        var hasEnough = exists && currentAmount >= amount;
+        
+        return hasEnough;
+    }
+
+    // Get all resources as a read-only dictionary
+    public IReadOnlyDictionary<string, int> GetAllResources()
+    {
+        GD.Print($"[{LoggerName}] Getting all resources. Total types: {_resources.Count}");
+        return new Dictionary<string, int>(_resources);
+    }
+
+    // Clear all resources
+    public void Clear()
+    {
+        GD.Print($"[{LoggerName}] Clearing all resources. Total types before clear: {_resources.Count}");
+        
+        var keys = new List<string>(_resources.Keys);
+        foreach (var resourceId in keys)
+        {
+            _resources[resourceId] = 0;
+            EmitSignal(nameof(OnResourceChanged), resourceId, 0);
+        }
+        _resources.Clear();
+        
+        GD.Print($"[{LoggerName}] All resources cleared");
+    }
+
+    // Helper method to log current resource state
+    public void LogResourceState()
+    {
+        if (_resources.Count == 0)
+        {
+            GD.Print($"[{LoggerName}] No resources currently stored");
+            return;
+        }
+
+        GD.Print($"[{LoggerName}] Current resource state:");
+        foreach (var (id, amount) in _resources.OrderBy(x => x.Key))
+        {
+            GD.Print($"  - {id}: {amount}");
+        }
+    }
+}

Scripts/System/ResourceManager.cs.uid

@@ -0,0 +1 @@
+uid://dfi2snip78eq6