Execute InstanceTickEvent in Instance instead of InstanceContainer

src/main/java/net/minestom/server/event/instance/InstanceTickEvent.java

@@ -2,34 +2,36 @@ package net.minestom.server.event.instance;
 
 import net.minestom.server.event.Event;
 import net.minestom.server.instance.Instance;
+import org.jetbrains.annotations.NotNull;
 
 /**
- * Called when an instance processes a tick 
+ * Called when an instance processes a tick.
  */
 public class InstanceTickEvent extends Event {
 
-	private final int duration;
-	private final Instance instance;
+    private final int duration;
+    private final Instance instance;
 
-    public InstanceTickEvent(long time, long lastTickAge, Instance someInstance) {
+    public InstanceTickEvent(@NotNull Instance instance, long time, long lastTickAge) {
         this.duration = (int) (time - lastTickAge);
-        this.instance = someInstance;
+        this.instance = instance;
     }
 
     /**
-     * Gets the duration of the tick in ms
+     * Gets the duration of the tick in ms.
      *
      * @return the duration
      */
     public int getDuration() {
         return duration;
     }
-    
+
     /**
-     * Gets the instance of the event
+     * Gets the instance of the event.
      *
      * @return the instance
      */
+    @NotNull
     public Instance getInstance() {
         return instance;
     }

src/main/java/net/minestom/server/instance/Instance.java

@@ -13,6 +13,7 @@ import net.minestom.server.event.Event;
 import net.minestom.server.event.EventCallback;
 import net.minestom.server.event.handler.EventHandler;
 import net.minestom.server.event.instance.AddEntityToInstanceEvent;
+import net.minestom.server.event.instance.InstanceTickEvent;
 import net.minestom.server.event.instance.RemoveEntityFromInstanceEvent;
 import net.minestom.server.instance.batch.BlockBatch;
 import net.minestom.server.instance.batch.ChunkBatch;
@@ -73,6 +74,9 @@ public abstract class Instance implements BlockModifier, EventHandler, DataConta
     private UpdateOption timeUpdate = new UpdateOption(1, TimeUnit.SECOND);
     private long lastTimeUpdate;
 
+    // Field for tick events
+    private long lastTickAge = System.currentTimeMillis();
+
     private final Map<Class<? extends Event>, Collection<EventCallback>> eventCallbacks = new ConcurrentHashMap<>();
 
     // Entities present in this instance
@@ -998,7 +1002,7 @@ public abstract class Instance implements BlockModifier, EventHandler, DataConta
      * @param time the tick time in milliseconds
      */
     public void tick(long time) {
-        // scheduled tasks
+        // Scheduled tasks
         if (!nextTick.isEmpty()) {
             Consumer<Instance> callback;
             while ((callback = nextTick.poll()) != null) {
@@ -1006,8 +1010,8 @@ public abstract class Instance implements BlockModifier, EventHandler, DataConta
             }
         }
 
+        // Time
         {
-            // time
             this.worldAge++;
 
             this.time += timeRate;
@@ -1020,6 +1024,16 @@ public abstract class Instance implements BlockModifier, EventHandler, DataConta
 
         }
 
+        // Tick event
+        {
+            // Process tick events
+            InstanceTickEvent chunkTickEvent = new InstanceTickEvent(this, time, lastTickAge);
+            callEvent(InstanceTickEvent.class, chunkTickEvent);
+
+            // Set last tick age
+            lastTickAge = time;
+        }
+
         this.worldBorder.update();
     }
 

src/main/java/net/minestom/server/instance/InstanceContainer.java

@@ -9,7 +9,6 @@ import net.minestom.server.data.SerializableData;
 import net.minestom.server.entity.Player;
 import net.minestom.server.event.instance.InstanceChunkLoadEvent;
 import net.minestom.server.event.instance.InstanceChunkUnloadEvent;
-import net.minestom.server.event.instance.InstanceTickEvent;
 import net.minestom.server.event.player.PlayerBlockBreakEvent;
 import net.minestom.server.instance.batch.BlockBatch;
 import net.minestom.server.instance.batch.ChunkBatch;
@@ -65,9 +64,6 @@ public class InstanceContainer extends Instance {
 
     private final ReadWriteLock changingBlockLock = new ReentrantReadWriteLock();
     private final Map<BlockPosition, Block> currentlyChangingBlocks = new HashMap<>();
-    
-    // Fields for tick events
-    private long lastTickAge = System.currentTimeMillis();
 
     // the chunk loader, used when trying to load/save a chunk from another source
     private IChunkLoader chunkLoader;
@@ -792,18 +788,11 @@ public class InstanceContainer extends Instance {
 
         // Time/world border
         super.tick(time);
-        
-        // Process tick events
-        InstanceTickEvent chunkTickEvent = new InstanceTickEvent(time, lastTickAge, this);
-        callEvent(InstanceTickEvent.class, chunkTickEvent);
-        
+
         Lock wrlock = changingBlockLock.writeLock();
         wrlock.lock();
         currentlyChangingBlocks.clear();
         wrlock.unlock();
-        
-        // Set last tick age
-        lastTickAge = time;
     }
 
     /**