Method moved to Warehouse

src/engine/objects/Warehouse.java

@@ -11,6 +11,7 @@ package engine.objects;
 
 import engine.gameManager.ChatManager;
 import engine.gameManager.DbManager;
+import engine.loot.WorkOrder;
 import engine.mbEnums;
 import engine.net.Dispatch;
 import engine.net.DispatchMessage;
@@ -635,4 +636,39 @@ public class Warehouse {
         return warehouse.locked.contains(resourceType);
     }
 
+    public static HashMap<mbEnums.ResourceType, Integer> calcCostOverrun(WorkOrder workOrder) {
+
+        HashMap<mbEnums.ResourceType, Integer> costMap = new HashMap<>();
+        Warehouse warehouse;
+
+        // See if we can meet gold only requirements and early exit
+
+        if (workOrder.production_cost_total.size() == 1) {
+            if (workOrder.vendor.building.getStrongboxValue() > workOrder.production_cost_total.get(mbEnums.ResourceType.GOLD))
+                return costMap;
+        }
+
+        // Gold deficit exists so a warehouse is required
+
+        warehouse = workOrder.vendor.building.getCity() == null ? null : workOrder.vendor.building.getCity().warehouse;
+
+        if (warehouse == null)
+            return workOrder.production_cost_total;
+
+        // Method returns a map of resourceType that a transaction overdrafts.
+
+        HashMap<mbEnums.ResourceType, Integer> overflowMap = new HashMap<>();
+
+        for (mbEnums.ResourceType resourceType : workOrder.production_cost_total.keySet()) {
+
+            int debit = warehouse.resources.get(resourceType) - workOrder.production_cost_total.get(resourceType);
+
+            // Locked resources are always unavailable
+
+            if (debit < 0 || warehouse.locked.contains(resourceType))
+                overflowMap.put(resourceType, debit);
+        }
+
+        return overflowMap;
+    }
 }