Tasks/src/main/java/fr/altarik/toolbox/task/AltarikRunnable.java

@@ -5,7 +5,7 @@ public abstract class AltarikRunnable implements Runnable {
     private boolean isCancelled = false;
 
     /**
-     * Warning: Some task cannot be cancelled (mostly async tasks like {@link fr.altarik.toolbox.task.asyncTasks.AsyncTasks}
+     * Warning: Some task cannot be cancelled (mostly async tasks like {@link fr.altarik.toolbox.task.async.AsyncTasks}
      * The result of this call is ignored in this case, you can still add a way to not execute its content (like if(isCancelled) return;)
      */
     public void cancel() {

Tasks/src/main/java/fr/altarik/toolbox/task/AsyncTaskI.java

@@ -1,4 +0,0 @@
-package fr.altarik.toolbox.task;
-
-public interface AsyncTaskI extends TaskI, AutoCloseable {
-}

Tasks/src/main/java/fr/altarik/toolbox/task/PeriodicTaskI.java

@@ -8,7 +8,7 @@ public interface PeriodicTaskI extends TaskI {
      * @param delay delay before starting the task
      * @param period time to wait between runs
      * @throws InterruptedException When executed asynchronously, task may be interrupted
-     * @see fr.altarik.toolbox.task.syncTasks.PeriodicSyncTask
+     * @see fr.altarik.toolbox.task.sync.PeriodicSyncTask
      */
     public void addTask(AltarikRunnable function, long delay, long period) throws InterruptedException;
 }

Tasks/src/main/java/fr/altarik/toolbox/task/SchedulerTaskData.java

@@ -1,15 +1,29 @@
-package fr.altarik.toolbox.task.syncTasks;
-
-import fr.altarik.toolbox.task.AltarikRunnable;
+package fr.altarik.toolbox.task;
 
 public class SchedulerTaskData {
 
+    /**
+     * Delay before executing the function for the first time
+     * Correspond to tick in synchronous context and milliseconds in asynchronous context
+     */
     private final long delay;
+    /**
+     * Period of time before re-executing the function
+     * Correspond to tick in synchronous context and milliseconds in asynchronous context
+     */
     private final long period;
     private final AltarikRunnable function;
 
     private long currentDelay;
 
+    /**
+     *
+     * Delay and Period times corresponds to tick in synchronous context and milliseconds in asynchronous context
+     *
+     * @param function instructions to execute
+     * @param delay Delay before executing the function for the first time
+     * @param period Period of time before re-executing the function
+     */
     public SchedulerTaskData(AltarikRunnable function, long delay, long period) {
         this.function = function;
         this.delay = delay;
@@ -36,4 +50,6 @@ public class SchedulerTaskData {
     public long getPeriod() {
         return period;
     }
+
+
 }

Tasks/src/main/java/fr/altarik/toolbox/task/Task.java

@@ -1,6 +1,6 @@
 package fr.altarik.toolbox.task;
 
-import fr.altarik.toolbox.task.asyncTasks.AsyncTasks;
+import fr.altarik.toolbox.task.async.AsyncTasks;
 import net.fabricmc.api.ModInitializer;
 
 public class Task implements ModInitializer {

Tasks/src/main/java/fr/altarik/toolbox/task/async/AsyncPeriodicTasks.java

@@ -1,6 +1,8 @@
-package fr.altarik.toolbox.task.asyncTasks;
+package fr.altarik.toolbox.task.async;
 
-import fr.altarik.toolbox.task.*;
+import fr.altarik.toolbox.task.AltarikRunnable;
+import fr.altarik.toolbox.task.PeriodicTaskI;
+import fr.altarik.toolbox.task.TaskI;
 import it.unimi.dsi.fastutil.ints.IntComparators;
 
 import java.util.ArrayList;
@@ -56,7 +58,7 @@ public class AsyncPeriodicTasks implements PeriodicTaskI, AsyncTaskI {
 
     @Override
     public void addTask(AltarikRunnable function) throws InterruptedException {
-        this.addTask(function, 0, 1);
+        this.addTask(function, 0, 1000);
     }
 
     @Override

Tasks/src/main/java/fr/altarik/toolbox/task/async/AsyncTaskI.java

@@ -0,0 +1,6 @@
+package fr.altarik.toolbox.task.async;
+
+import fr.altarik.toolbox.task.TaskI;
+
+public interface AsyncTaskI extends TaskI, AutoCloseable {
+}

Tasks/src/main/java/fr/altarik/toolbox/task/async/AsyncTasks.java

@@ -1,4 +1,4 @@
-package fr.altarik.toolbox.task.asyncTasks;
+package fr.altarik.toolbox.task.async;
 
 import fr.altarik.toolbox.task.AltarikRunnable;
 import fr.altarik.toolbox.task.TaskI;

Tasks/src/main/java/fr/altarik/toolbox/task/async/TaskScheduler.java

@@ -1,16 +1,27 @@
-package fr.altarik.toolbox.task;
+package fr.altarik.toolbox.task.async;
 
-import fr.altarik.toolbox.task.syncTasks.SchedulerTaskData;
+import fr.altarik.toolbox.task.AltarikRunnable;
+import fr.altarik.toolbox.task.SchedulerTaskData;
 
+import java.time.Instant;
+import java.time.temporal.ChronoUnit;
+import java.util.HashMap;
 import java.util.Vector;
 
 public class TaskScheduler {
     private Vector<SchedulerTaskData> asyncTasks;
+
+    /**
+     * Return last time the method was executed, Value initialized to now when using sending the task to scheduler
+     */
+    private HashMap<SchedulerTaskData, Instant> lastTimeExecution;
     private boolean stop = false;
 
 
     public synchronized void sendAsyncTask(AltarikRunnable function, long delay, long period) throws InterruptedException {
-        asyncTasks.addElement(new SchedulerTaskData(function, delay, period));
+        SchedulerTaskData data = new SchedulerTaskData(function, delay, period);
+        asyncTasks.addElement(data);
+        lastTimeExecution.put(new SchedulerTaskData(function, delay, period), Instant.now());
         notify();
     }
 
@@ -30,12 +41,13 @@ public class TaskScheduler {
             asyncTasks.remove(data);
             if(!data.getFunction().isCancelled()) {
                 long currentDelay = data.getCurrentDelay();
-                if(currentDelay != 0) {
-                    data.setCurrentDelay(currentDelay - 1);
-                    asyncTasks.addElement(data);
-                } else {
+                Instant currentTime = Instant.now();
+                Instant lastExecution = lastTimeExecution.get(data);
+                // (lastExec + delay) - currentTime
+                if(lastExecution.plus(currentDelay, ChronoUnit.MILLIS).isBefore(currentTime)) {
                     data.getFunction().run();
                     data.setCurrentDelay(data.getPeriod());
+                    lastTimeExecution.put(data, Instant.now());
                     asyncTasks.addElement(data);
                 }
             }

Tasks/src/main/java/fr/altarik/toolbox/task/sync/PeriodicSyncTask.java

@@ -0,0 +1,57 @@
+package fr.altarik.toolbox.task.sync;
+
+import fr.altarik.toolbox.task.AltarikRunnable;
+import fr.altarik.toolbox.task.PeriodicTaskI;
+import fr.altarik.toolbox.task.SchedulerTaskData;
+import fr.altarik.toolbox.task.TaskI;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class PeriodicSyncTask implements PeriodicTaskI, Runnable {
+
+    private ServerTickListener listener;
+    private List<SchedulerTaskData> tasks;
+
+    private PeriodicSyncTask() {
+        this.listener = new ServerTickListener(this);
+        this.tasks = new ArrayList<>(2);
+    }
+
+
+    public static TaskI initialize() {
+        return new PeriodicSyncTask();
+    }
+
+    @Override
+    public void addTask(AltarikRunnable function) throws InterruptedException {
+        addTask(function, 0, 1);
+    }
+
+    @Override
+    public void run() {
+        List<SchedulerTaskData> removeList = new ArrayList<>(tasks.size());
+        for(SchedulerTaskData data : tasks) {
+            if(!data.getFunction().isCancelled()) {
+                long currentDelay = data.getCurrentDelay();
+                if(currentDelay != 0) {
+                    data.setCurrentDelay(currentDelay - 1);
+                } else {
+                    data.getFunction().run();
+                    data.setCurrentDelay(data.getPeriod());
+                }
+            } else {
+                removeList.add(data);
+            }
+        }
+        for(SchedulerTaskData toRemove : removeList) {
+            tasks.remove(toRemove);
+        }
+
+    }
+
+    @Override
+    public void addTask(AltarikRunnable function, long delay, long period) throws InterruptedException {
+        tasks.add(new SchedulerTaskData(function, delay, period));
+    }
+}

Tasks/src/main/java/fr/altarik/toolbox/task/sync/ServerTickListener.java

@@ -1,4 +1,4 @@
-package fr.altarik.toolbox.task.syncTasks;
+package fr.altarik.toolbox.task.sync;
 
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents;
 import net.minecraft.server.MinecraftServer;
@@ -13,7 +13,7 @@ public class ServerTickListener {
     }
 
     private void onServerTick(MinecraftServer minecraftServer) {
-
+        task.run();
     }
 
 }

Tasks/src/main/java/fr/altarik/toolbox/task/syncTasks/PeriodicSyncTask.java

@@ -1,48 +0,0 @@
-package fr.altarik.toolbox.task.syncTasks;
-
-import fr.altarik.toolbox.task.AltarikRunnable;
-import fr.altarik.toolbox.task.PeriodicTaskI;
-import fr.altarik.toolbox.task.TaskI;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class PeriodicSyncTask implements PeriodicTaskI, Runnable {
-
-    private ServerTickListener listener;
-    private List<AltarikRunnable> tasks;
-
-    private PeriodicSyncTask() {
-        this.listener = new ServerTickListener(this);
-        this.tasks = new ArrayList<>(2);
-    }
-
-
-    public static TaskI initialize() {
-        return new PeriodicSyncTask();
-    }
-
-    @Override
-    public void addTask(AltarikRunnable function) throws InterruptedException {
-        tasks.add(function);
-    }
-
-    @Override
-    public void run() {
-        List<AltarikRunnable> removeList = new ArrayList<>(tasks.size());
-        for(AltarikRunnable task : tasks) {
-            if(task.isCancelled()) {
-                removeList.add(task);
-            } else {
-
-                task.run();
-            }
-        }
-        tasks.removeAll(removeList);
-    }
-
-    @Override
-    public void addTask(AltarikRunnable function, long delay, long period) throws InterruptedException {
-
-    }
-}

Tasks/src/test/java/fr/altarik/toolbox/AsyncTaskTest.java

@@ -2,7 +2,7 @@ package fr.altarik.toolbox;
 
 import fr.altarik.toolbox.task.AltarikRunnable;
 import fr.altarik.toolbox.task.TaskI;
-import fr.altarik.toolbox.task.asyncTasks.AsyncTasks;
+import fr.altarik.toolbox.task.async.AsyncTasks;
 import org.junit.jupiter.api.Test;
 
 import java.util.Date;