fix metadata not being sent

src/main/java/me/tofaa/entitylib/entity/WrapperEntity.java

@@ -31,6 +31,11 @@ public class WrapperEntity {
         this.meta = meta;
     }
 
+    public void refresh() {
+        if (!spawned) return;
+        sendPacketToViewers(meta.createPacket());
+    }
+
     public boolean spawn(Location location) {
         if (spawned) return false;
         this.location = location;
@@ -48,6 +53,7 @@ public class WrapperEntity {
                         Optional.empty()
                 )
         );
+        sendPacketToViewers(meta.createPacket());
         return true;
     }
 
@@ -104,6 +110,7 @@ public class WrapperEntity {
                 Optional.empty()
         );
         EntityLib.sendPacket(uuid, packet);
+        EntityLib.sendPacket(uuid, meta.createPacket());
         return true;
     }
 

src/main/java/me/tofaa/entitylib/meta/EntityMeta.java

@@ -77,12 +77,25 @@ public class EntityMeta implements EntityMetadataProvider {
     }
 
     public Component getCustomName() {
-        return this.metadata.getIndex((byte) 2, null);
+        return this.metadata.getIndex(offset(OFFSET, 2), null);
+    }
+
+    public void setCustomName(Component value) {
+        this.metadata.setIndex(offset(OFFSET, 2), EntityDataTypes.COMPONENT, GsonComponentSerializer.gson().serialize(value));
+    }
+
+    public boolean isCustomNameVisible() {
+        return this.metadata.getIndex(offset(OFFSET, 3), false);
+    }
+
+    public void setCustomNameVisible(boolean value) {
+        this.metadata.setIndex(offset(OFFSET, 3), EntityDataTypes.BOOLEAN, value);
     }
 
     public boolean hasGlowingEffect() {
         return getMaskBit(OFFSET, HAS_GLOWING_EFFECT_BIT);
     }
+
     public boolean isSwimming() {
         return getMaskBit(OFFSET, SWIMMING_BIT);
     }
@@ -103,18 +116,6 @@ public class EntityMeta implements EntityMetadataProvider {
         setMaskBit(OFFSET, FLYING_WITH_ELYTRA_BIT, value);
     }
 
-    public void setCustomName(Component value) {
-        this.metadata.setIndex((byte) 2, EntityDataTypes.COMPONENT, GsonComponentSerializer.gson().serialize(value));
-    }
-
-    public boolean isCustomNameVisible() {
-        return this.metadata.getIndex((byte) 3, false);
-    }
-
-    public void setCustomNameVisible(boolean value) {
-        this.metadata.setIndex((byte) 3, EntityDataTypes.BOOLEAN, value);
-    }
-
     public boolean isSilent() {
         return this.metadata.getIndex((byte) 4, false);
     }

test-plugin/build.gradle

@@ -1,7 +1,8 @@
 plugins {
     id 'java'
     id 'com.github.johnrengelman.shadow' version '7.1.2'
-
+    id("io.papermc.paperweight.userdev") version "1.5.11"
+    id 'xyz.jpenilla.run-paper' version '2.2.2'
 }
 
 group = 'me.tofaa.peentitymeta'
@@ -24,7 +25,7 @@ repositories {
 }
 
 dependencies {
-    compileOnly('org.spigotmc:spigot-api:1.20.1-R0.1-SNAPSHOT')
+    paperweight.paperDevBundle("1.20.4-R0.1-SNAPSHOT")
     compileOnly('com.github.retrooper.packetevents:spigot:2.0.2')
     implementation project(':')
 }

test-plugin/src/main/java/me/tofaa/entitylib/TestEntityCommand.java

@@ -6,6 +6,8 @@ import io.github.retrooper.packetevents.util.SpigotConversionUtil;
 import me.tofaa.entitylib.entity.WrapperEntity;
 import me.tofaa.entitylib.entity.WrapperLivingEntity;
 import me.tofaa.entitylib.meta.EntityMeta;
+import me.tofaa.entitylib.meta.other.ArmorStandMeta;
+import net.kyori.adventure.text.Component;
 import org.bukkit.Material;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
@@ -25,7 +27,6 @@ public class TestEntityCommand implements CommandExecutor {
     public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
         if (!(sender instanceof Player)) return false;
         Player player = (Player) sender;
-
         if (entity == null) {
             entity = (WrapperLivingEntity) EntityLib.createEntity(UUID.randomUUID(), EntityTypes.ZOMBIE);
             if (entity == null) {
@@ -42,9 +43,23 @@ public class TestEntityCommand implements CommandExecutor {
         EntityMeta meta = entity.getMeta();
         meta.setOnFire(!meta.isOnFire());
         meta.setHasGlowingEffect(!meta.hasGlowingEffect());
+
+        meta.setCustomNameVisible(!meta.isCustomNameVisible());
+        meta.setCustomName(Component.text("test"));
+
         player.sendMessage("on fire: " + meta.isOnFire());
         player.sendMessage("glowing: " + meta.hasGlowingEffect());
-        player.sendMessage("viewers: " + entity.getViewers());
+
+
+        WrapperEntity e = EntityLib.createEntity(UUID.randomUUID(), EntityTypes.ARMOR_STAND);
+        int entityId = e.getEntityId(); // You can set the entityId provider to change this, WrapperEntity#ID_PROVIDER
+        if (e == null) {
+            throw new RuntimeException("Error creating entity meta"); // Only happens if the entity meta is null/invalid.
+        }
+        ArmorStandMeta m = (ArmorStandMeta) e.getMeta();
+        m.setInvisible(true);
+        e.spawn(new Location(1, 2, 3, 4, 5));
+        e.addViewer(player.getUniqueId());
 
         return false;
     }