Added PlayerDeathEvent to change the death message/text

src/main/java/net/minestom/server/entity/Player.java

@@ -500,36 +500,45 @@ public class Player extends LivingEntity implements CommandSender {
     public void kill() {
         if (!isDead()) {
 
-            // send death screen text to the killed player
-            {
             ColoredText deathText;
+            JsonMessage chatMessage;
+
+            // get death screen text to the killed player
+            {
                 if (lastDamageSource != null) {
                     deathText = lastDamageSource.buildDeathScreenText(this);
                 } else { // may happen if killed by the server without applying damage
                     deathText = ColoredText.of("Killed by poor programming.");
                 }
+            }
+
+            // get death message to chat
+            {
+                if (lastDamageSource != null) {
+                    chatMessage = lastDamageSource.buildDeathMessage(this);
+                } else { // may happen if killed by the server without applying damage
+                    chatMessage = ColoredText.of(getUsername() + " was killed by poor programming.");
+                }
+            }
+
+            // Call player death event
+            PlayerDeathEvent playerDeathEvent = new PlayerDeathEvent(this, deathText, chatMessage);
+            callEvent(PlayerDeathEvent.class, playerDeathEvent);
+
+            deathText = playerDeathEvent.getDeathText();
+            chatMessage = playerDeathEvent.getChatMessage();
 
             // #buildDeathScreenText can return null, check here
             if (deathText != null) {
                 CombatEventPacket deathPacket = CombatEventPacket.death(this, Optional.empty(), deathText);
                 playerConnection.sendPacket(deathPacket);
             }
-            }
-
-            // send death message to chat
-            {
-                JsonMessage chatMessage;
-                if (lastDamageSource != null) {
-                    chatMessage = lastDamageSource.buildDeathMessage(this);
-                } else { // may happen if killed by the server without applying damage
-                    chatMessage = ColoredText.of(getUsername() + " was killed by poor programming.");
-                }
 
             // #buildDeathMessage can return null, check here
             if (chatMessage != null) {
                 MinecraftServer.getConnectionManager().broadcastMessage(chatMessage);
             }
-            }
+
         }
         super.kill();
     }

src/main/java/net/minestom/server/event/player/PlayerDeathEvent.java

@@ -0,0 +1,61 @@
+package net.minestom.server.event.player;
+
+import net.minestom.server.chat.ColoredText;
+import net.minestom.server.chat.JsonMessage;
+import net.minestom.server.entity.Player;
+import net.minestom.server.event.PlayerEvent;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Called when a player die in {@link Player#kill()}.
+ */
+public class PlayerDeathEvent extends PlayerEvent {
+
+    private ColoredText deathText;
+    private JsonMessage chatMessage;
+
+    public PlayerDeathEvent(@NotNull Player player, ColoredText deathText, JsonMessage chatMessage) {
+        super(player);
+        this.deathText = deathText;
+        this.chatMessage = chatMessage;
+    }
+
+    /**
+     * Gets the text displayed in the death screen.
+     *
+     * @return the death text, can be null
+     */
+    @Nullable
+    public ColoredText getDeathText() {
+        return deathText;
+    }
+
+    /**
+     * Changes the text displayed in the death screen.
+     *
+     * @param deathText the death text to display, null to remove
+     */
+    public void setDeathText(@Nullable ColoredText deathText) {
+        this.deathText = deathText;
+    }
+
+    /**
+     * Gets the message sent to chat.
+     *
+     * @return the death chat message
+     */
+    @Nullable
+    public JsonMessage getChatMessage() {
+        return chatMessage;
+    }
+
+    /**
+     * Changes the text sent in chat
+     *
+     * @param chatMessage the death message to send, null to remove
+     */
+    public void setChatMessage(@Nullable JsonMessage chatMessage) {
+        this.chatMessage = chatMessage;
+    }
+}

src/test/java/demo/PlayerInit.java

@@ -135,6 +135,10 @@ public class PlayerInit {
             }
         });
 
+        globalEventHandler.addEventCallback(PlayerDeathEvent.class, event -> {
+            event.setChatMessage(ColoredText.of("custom death message"));
+        });
+
         globalEventHandler.addEventCallback(PlayerBlockPlaceEvent.class, event -> {
             if (event.getHand() != Player.Hand.MAIN)
                 return;