From 35c6176035d45e8bf7d04601e3a0b2ed4b6b663e Mon Sep 17 00:00:00 2001
From: youhavetrouble <youhavetrouble@youhavetrouble.me>
Date: Tue, 20 Jun 2023 00:45:25 +0200
Subject: [PATCH] hopefully working solution for nametags

---
 .../nameplates/Nameplate.java                 | 44 +++++++++++++++----
 1 file changed, 35 insertions(+), 9 deletions(-)

diff --git a/src/main/java/me/youhavetrouble/notjustnameplates/nameplates/Nameplate.java b/src/main/java/me/youhavetrouble/notjustnameplates/nameplates/Nameplate.java
index 4b39cee..f1182dd 100644
--- a/src/main/java/me/youhavetrouble/notjustnameplates/nameplates/Nameplate.java
+++ b/src/main/java/me/youhavetrouble/notjustnameplates/nameplates/Nameplate.java
@@ -3,7 +3,11 @@ package me.youhavetrouble.notjustnameplates.nameplates;
 import net.kyori.adventure.text.Component;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
+import org.bukkit.entity.EntityType;
 import org.bukkit.entity.Player;
+import org.bukkit.entity.TextDisplay;
+import org.bukkit.event.entity.CreatureSpawnEvent;
+import org.bukkit.event.player.PlayerTeleportEvent;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.UUID;
@@ -14,11 +18,31 @@ public class Nameplate {
     private final UUID playerUuid;
     private double heightOffset = 0.5;
 
+    private TextDisplay textDisplay;
+
     public Nameplate(@NotNull UUID playerUuid, @NotNull Component name) {
         this.playerUuid = playerUuid;
         this.name = name;
     }
 
+    private void createDisplayEntity() {
+        if (textDisplay != null && !textDisplay.isDead()) return;
+        Player player = Bukkit.getPlayer(playerUuid);
+        if (player == null) return;
+        this.textDisplay = (TextDisplay) player.getWorld()
+                .spawnEntity(
+                        calculateCurrentLocation(),
+                        EntityType.TEXT_DISPLAY,
+                        CreatureSpawnEvent.SpawnReason.CUSTOM, entity -> {
+                            TextDisplay textDisplay = (TextDisplay) entity;
+                            textDisplay.setCustomNameVisible(true);
+                            textDisplay.setSilent(true);
+                            textDisplay.setInvulnerable(true);
+                            textDisplay.setPersistent(false);
+                            textDisplay.text(this.name);
+                        });
+    }
+
     /**
      * Get content of the nameplate
      * @return content of the nameplate
@@ -32,6 +56,8 @@ public class Nameplate {
      */
     public void setName(Component name) {
         this.name = name;
+        if (textDisplay == null || textDisplay.isDead()) return;
+        textDisplay.text(name);
     }
 
     /**
@@ -41,19 +67,19 @@ public class Nameplate {
         this.heightOffset = heightOffset;
     }
 
+    public Location calculateCurrentLocation() {
+        Player player = Bukkit.getPlayer(playerUuid);
+        if (player == null) return null;
+        return player.getEyeLocation().add(0, heightOffset, 0);
+    }
+
     /**
      * Update the nameplate position
      */
     public void updatePosition() {
-        Player player = Bukkit.getPlayer(playerUuid);
-        if (player == null) return;
-        Location location = player
-                .getEyeLocation()
-                .clone()
-                .add(0, heightOffset, 0);
-
-        // TODO move fake entity to location
-
+        createDisplayEntity();
+        Location location = calculateCurrentLocation();
+        this.textDisplay.teleportAsync(location, PlayerTeleportEvent.TeleportCause.PLUGIN);
     }
 
 }