Add Scheduler#scheduleNextProcess

src/main/java/net/minestom/server/timer/Scheduler.java

@@ -67,4 +67,12 @@ public sealed interface Scheduler permits SchedulerImpl, SchedulerManager {
     default @NotNull Task scheduleNextTick(@NotNull Runnable task) {
         return scheduleNextTick(task, ExecutionType.SYNC);
     }
+
+    default @NotNull Task scheduleNextProcess(@NotNull Runnable task, @NotNull ExecutionType executionType) {
+        return buildTask(task).delay(TaskSchedule.immediate()).executionType(executionType).schedule();
+    }
+
+    default @NotNull Task scheduleNextProcess(@NotNull Runnable task) {
+        return scheduleNextProcess(task, ExecutionType.SYNC);
+    }
 }

src/test/java/timer/TestScheduler.java

@@ -43,6 +43,20 @@ public class TestScheduler {
         assertTrue(result.get(), "Tick task must be executed after 1 second");
     }
 
+    @Test
+    public void immediateTask() {
+        Scheduler scheduler = Scheduler.newScheduler();
+        AtomicBoolean result = new AtomicBoolean(false);
+        scheduler.scheduleNextProcess(() -> result.set(true));
+        assertFalse(result.get());
+        scheduler.process();
+        assertTrue(result.get());
+
+        result.set(false);
+        scheduler.process();
+        assertFalse(result.get());
+    }
+
     @Test
     public void cancelTask() {
         Scheduler scheduler = Scheduler.newScheduler();