Initial commit

Assets/Scripts/JobManager.cs

@@ -1,4 +1,5 @@
 using UnityEngine;
+using System.Collections.Generic;
 
 public class JobManager : MonoBehaviour
 {
@@ -28,13 +29,57 @@ public class JobManager : MonoBehaviour
     private Building GetUnfinishedBuildings()
     {
         Building[] buildings = GameManager.Instance.CountBuildings();
+        List<Building> candidates = new List<Building>();
+
         foreach (Building building in buildings)
         {
-            if(building.GetBuildingState() == Building.BuildingState.Unbuilt)
+            var state = building.GetBuildingState();
+            if (state == Building.BuildingState.Unbuilt)
             {
-                return building;
+                if (CanBuildBuilding(building))
+                {
+                    candidates.Add(building);
+                }
+            }
+            else if (state == Building.BuildingState.Constructing)
+            {
+                // Allow additional builders to join already-constructing buildings
+                candidates.Add(building);
             }
         }
-        return null;
+
+        if (candidates.Count == 0)
+            return null;
+
+        int idx = Random.Range(0, candidates.Count);
+        return candidates[idx];
+    }
+
+    private bool CanBuildBuilding(Building building)
+    {
+        Resource.ResourceType[] requiredResources = building.GetResourceRequirement();
+        int[] requiredCosts = building.GetConstructionCost();
+
+        if (requiredResources == null || requiredCosts == null)
+        {
+            Debug.LogWarning("Building missing resource or cost arrays");
+            return false;
+        }
+
+        if (requiredResources.Length != requiredCosts.Length)
+        {
+            Debug.LogWarning("Building resource and cost arrays don't match in length");
+            return false;
+        }
+
+        for (int i = 0; i < requiredResources.Length; i++)
+        {
+            if (GameManager.Instance.GetResource(requiredResources[i]) < requiredCosts[i])
+            {
+                return false;
+            }
+        }
+
+        return true;
     }
 }