From cd328ea00c96f54e086b9cdc30fba96bb8df213f Mon Sep 17 00:00:00 2001
From: Kikisito <bekikisito@gmail.com>
Date: Thu, 25 Jun 2020 16:30:32 +0200
Subject: [PATCH] Fixed compatibility with older versions

---
 .../actionhealth/support/LegacyPreAction.java | 35 +++++++++++++++++++
 .../actionhealth/utils/HealthUtil.java        | 10 +++---
 2 files changed, 39 insertions(+), 6 deletions(-)
 create mode 100644 src/com/zeshanaslam/actionhealth/support/LegacyPreAction.java

diff --git a/src/com/zeshanaslam/actionhealth/support/LegacyPreAction.java b/src/com/zeshanaslam/actionhealth/support/LegacyPreAction.java
new file mode 100644
index 0000000..d08934b
--- /dev/null
+++ b/src/com/zeshanaslam/actionhealth/support/LegacyPreAction.java
@@ -0,0 +1,35 @@
+package com.zeshanaslam.actionhealth.support;
+
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+
+import java.lang.reflect.InvocationTargetException;
+
+public class LegacyPreAction {
+
+    private final String packageVersion = Bukkit.getServer().getClass().getPackage().getName().replace(".", ",").split(",")[3];
+
+    public LegacyPreAction(Player player, String message) throws ClassNotFoundException {
+        try {
+            Object chatComponentText = getNMSClass("ChatComponentText").getConstructor(new Class[]{String.class}).newInstance(message);
+            Object chatMessageType = getNMSClass("ChatMessageType").getField("GAME_INFO").get(null);
+            Object packetPlayOutChat = getNMSClass("PacketPlayOutChat").getConstructor(new Class[]{getNMSClass("IChatBaseComponent"), getNMSClass("ChatMessageType")}).newInstance(chatComponentText, chatMessageType);
+            Object getHandle = player.getClass().getMethod("getHandle", new Class[0]).invoke(player);
+            Object playerConnection = getHandle.getClass().getField("playerConnection").get(getHandle);
+
+            playerConnection.getClass().getMethod("sendPacket", new Class[]{getNMSClass("Packet")}).invoke(playerConnection, packetPlayOutChat);
+        } catch (InstantiationException | IllegalAccessException | InvocationTargetException | NoSuchMethodException | NoSuchFieldException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private Class<?> getNMSClass(String nmsClassName) {
+        try {
+            return Class.forName("net.minecraft.server." + packageVersion + "." + nmsClassName);
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+
+        return null;
+    }
+}
diff --git a/src/com/zeshanaslam/actionhealth/utils/HealthUtil.java b/src/com/zeshanaslam/actionhealth/utils/HealthUtil.java
index 95c4e8a..49054b6 100644
--- a/src/com/zeshanaslam/actionhealth/utils/HealthUtil.java
+++ b/src/com/zeshanaslam/actionhealth/utils/HealthUtil.java
@@ -2,15 +2,11 @@ package com.zeshanaslam.actionhealth.utils;
 
 import com.zeshanaslam.actionhealth.Main;
 import com.zeshanaslam.actionhealth.api.HealthSendEvent;
-import com.zeshanaslam.actionhealth.support.LangUtilsSupport;
-import com.zeshanaslam.actionhealth.support.McMMOSupport;
-import com.zeshanaslam.actionhealth.support.MythicMobsSupport;
-import com.zeshanaslam.actionhealth.support.PreAction;
+import com.zeshanaslam.actionhealth.support.*;
 import org.apache.commons.lang.WordUtils;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.Location;
-import org.bukkit.attribute.Attribute;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
@@ -242,8 +238,10 @@ public class HealthUtil {
         message = ChatColor.translateAlternateColorCodes('&', message);
 
         try {
-            if (plugin.configStore.mcVersion.equals("v1_12_R1") || plugin.configStore.mcVersion.startsWith("v1_13") || plugin.configStore.mcVersion.startsWith("v1_14_") || plugin.configStore.mcVersion.startsWith("v1_15_") || plugin.configStore.mcVersion.startsWith("v1_16_")) {
+            if(plugin.configStore.mcVersion.equals("v1_16_R1")){
                 new PreAction(player, message);
+            } else if (plugin.configStore.mcVersion.equals("v1_12_R1") || plugin.configStore.mcVersion.startsWith("v1_13") || plugin.configStore.mcVersion.startsWith("v1_14_") || plugin.configStore.mcVersion.startsWith("v1_15_")) {
+                new LegacyPreAction(player, message);
             } else if (!(plugin.configStore.mcVersion.equalsIgnoreCase("v1_8_R1") || (plugin.configStore.mcVersion.contains("v1_7_")))) {
                 Class<?> c1 = Class.forName("org.bukkit.craftbukkit." + plugin.configStore.mcVersion + ".entity.CraftPlayer");
                 Object p = c1.cast(player);