向玩家发送标题 - Packets
Warning
不建议直接使用 NMS。Spigot API 提供了一种发送标题的方法，旨在跨不同 Minecraft 版本工作。
你可能想知道："我怎样才能向玩家发送标题，并使我的插件在所有支持标题的版本中工作？"，答案是：'使用 NMS。
创建一个名为 Reflection 的类，包含这两个方法:
public void sendPacket(Player player, Object packet) {
try {
Object handle = player.getClass().getMethod("getHandle").invoke(player);
Object playerConnection = handle.getClass().getField("playerConnection").get(handle);
playerConnection.getClass().getMethod("sendPacket", getNMSClass("Packet")).invoke(playerConnection, packet);
} catch (Exception ex) {
}
}
public Class<?> getNMSClass(String name) {
try {
return Class.forName("net.minecraft.server"
+ Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3] + "." + name);
} catch (ClassNotFoundException ex) {
}
return null;
}
然后，创建一个名为 Title 的类，它继承了 Reflection 类并包含这个方法：
public void send(Player player, int fadeInTime, int showTime, int fadeOutTime, String title, String subtitle) {
try {
Object chatTitle = getNMSClass("IChatBaseComponent").getDeclaredClasses()[0].getMethod("a", String.class)
.invoke(null, "{\"text\": \"" + title + "\"}");
Constructor<?> titleConstructor = getNMSClass("PacketPlayOutTitle").getConstructor(
getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0], getNMSClass("IChatBaseComponent"),
int.class, int.class, int.class);
Object packet = titleConstructor.newInstance(
getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0].getField("TITLE").get(null), chatTitle,
fadeInTime, showTime, fadeOutTime);
Object chatsTitle = getNMSClass("IChatBaseComponent").getDeclaredClasses()[0].getMethod("a", String.class)
.invoke(null, "{\"text\": \"" + subtitle + "\"}");
Constructor<?> stitleConstructor = getNMSClass("PacketPlayOutTitle").getConstructor(
getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0], getNMSClass("IChatBaseComponent"),
int.class, int.class, int.class);
Object spacket = stitleConstructor.newInstance(
getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0].getField("SUBTITLE").get(null), chatsTitle,
fadeInTime, showTime, fadeOutTime);
sendPacket(player, packet);
sendPacket(player, spacket);
} catch (Exception ex) {
}
}