allow xpac mines to change production

src/engine/objects/Mine.java

@@ -381,8 +381,22 @@ public class Mine extends AbstractGameObject {
     }
 
     public boolean validForMine(Resource r) {
+        //check expacs individually
+        switch(this.getObjectUUID()){
+            case 58:
+            case 59:
+                return (MineProduction.MAGIC.resources.containsKey(r.UUID) || r.UUID == Resource.BLOODSTONE.UUID);
+            case 60:
+                return (MineProduction.LUMBER.resources.containsKey(r.UUID) || r.UUID == Resource.WORMWOOD.UUID);
+            case 61:
+                return (MineProduction.GOLD.resources.containsKey(r.UUID) || r.UUID == Resource.GALVOR.UUID);
+            case 62:
+                return (MineProduction.ORE.resources.containsKey(r.UUID) || r.UUID == Resource.OBSIDIAN.UUID);
+        }
+
         if (this.mineType == null)
             return false;
+
         return this.mineType.validForMine(r, this.isExpansion());
     }