Refactored Generation and class structure

src/main/java/eu/mhsl/minenet/minigames/util/SingleExecution.java

@@ -0,0 +1,19 @@
+package eu.mhsl.minenet.minigames.util;
+
+public class SingleExecution {
+    public static SingleExecution make() {
+        return new SingleExecution();
+    }
+
+    private boolean wasExecuted = false;
+
+    public void reset() {
+        this.wasExecuted = false;
+    }
+
+    public void singleRun(Runnable task) {
+        if(wasExecuted) return;
+        task.run();
+        this.wasExecuted = true;
+    }
+}