new mines system

src/engine/workthreads/MineThread.java

@@ -26,9 +26,10 @@ public class MineThread  implements Runnable {
     public void run() {
         LocalDateTime nextPulse = LocalDateTime.now().withMinute(59).minusHours(1);
         while (true) {
-            if(LocalDateTime.now().isAfter(nextPulse));
-            processMineWindows();
-            nextPulse = nextPulse.plusMinutes(30);
+            if(LocalDateTime.now().isAfter(nextPulse)) {
+                processMineWindows();
+                nextPulse = nextPulse.plusMinutes(30);
+            }
         }
     }