Merge remote-tracking branch 'origin/master'

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

@@ -0,0 +1,42 @@
+package net.minestom.server.event.instance;
+
+import javax.annotation.Nullable;
+
+import org.jetbrains.annotations.NotNull;
+
+import net.minestom.server.event.Event;
+import net.minestom.server.instance.InstanceContainer;
+
+/**
+ * Called when an instance processes a tick 
+ */
+public class InstanceTickEvent extends Event {
+
+	private final int duration;
+	private final InstanceContainer instance;
+
+    public InstanceTickEvent(@NotNull long time, @Nullable long lastTickAge, InstanceContainer someInstance) {
+        this.duration = (int) (time - lastTickAge);
+        this.instance = someInstance;
+    }
+
+    /**
+     * Gets the duration of the tick in ms
+     *
+     * @return the duration
+     */
+    @NotNull
+    public int getDuration() {
+        return duration;
+    }
+    
+    /**
+     * Gets the instance of the event
+     *
+     * @return the instance
+     */
+    @NotNull
+    public InstanceContainer getInstance() {
+        return instance;
+    }
+}

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

@@ -9,6 +9,7 @@ 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;
@@ -65,6 +66,9 @@ 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;
 
@@ -789,10 +793,17 @@ 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;
     }
 
     /**