WIP ItemStack#getCustomDisplay

src/main/java/net/minestom/server/collision/CollisionUtils.java

@@ -111,7 +111,7 @@ public class CollisionUtils {
         // find the corner which moved the least
         float smallestDisplacement = Float.POSITIVE_INFINITY;
         for (int i = 0; i < corners.length; i++) {
-            float displacement = (float) corners[i].distance(cornersCopy[i]);
+            final float displacement = (float) corners[i].distance(cornersCopy[i]);
             if (displacement < smallestDisplacement) {
                 smallestDisplacement = displacement;
             }

src/main/java/net/minestom/server/item/ItemDisplay.java

@@ -0,0 +1,32 @@
+package net.minestom.server.item;
+
+import net.minestom.server.chat.ColoredText;
+
+public class ItemDisplay {
+
+    private ColoredText displayName;
+    private ColoredText[] lore;
+
+    public ItemDisplay(ColoredText displayName, ColoredText[] lore) {
+        this.displayName = displayName;
+        this.lore = lore;
+    }
+
+    /**
+     * Get the item display name
+     *
+     * @return the item display name
+     */
+    public ColoredText getDisplayName() {
+        return displayName;
+    }
+
+    /**
+     * Get the item lore
+     *
+     * @return the item lore
+     */
+    public ColoredText[] getLore() {
+        return lore;
+    }
+}

src/main/java/net/minestom/server/item/ItemStack.java

@@ -618,6 +618,20 @@ public class ItemStack implements DataContainer {
         return compound;
     }
 
+    /**
+     * WARNING: not implemented yet
+     * <p>
+     * This is be called each time an item is serialized to be send to a player,
+     * can be used to customize the display of the item based on player data
+     *
+     * @param player the player
+     * @return the custom {@link ItemDisplay} for {@code player},
+     * null to use the normal item display name & lore
+     */
+    public ItemDisplay getCustomDisplay(Player player) {
+        throw new UnsupportedOperationException("Not implemented yet");
+    }
+
     // Callback events
 
     /**