Added option to limit health style symbols and more

- Added option to limit health style symbols
- Using reflection for latest version

config.yml

@@ -54,8 +54,8 @@ Disabled regions:
 # Disable ActionHealth in regions where PvP is denied.
 Region PvP: true
 
-# When set to true and style health is enabled this will limit the health symbols to 10.
-Limit Health: true
+# Limits the health style to a certain amount of symbols.
+Limit Health: 10
 
 # Saves players /actionhealth toggle state.
 Remember Toggle: false

src/com/zeshanaslam/actionhealth/HealthUtil.java

@@ -108,18 +108,18 @@ public class HealthUtil {
         }
 
         if (output.contains("{usestyle}")) {
-            String style = "";
-            int left = 10;
-            double heart = maxHealth / 10;
+            StringBuilder style = new StringBuilder();
+            int left = plugin.settingsManager.limitHealth;
+            double heart = maxHealth / plugin.settingsManager.limitHealth;
             double halfHeart = heart / 2;
             double tempHealth = health;
 
             if (maxHealth != health && health >= 0 && !entity.isDead()) {
-                for (int i = 0; i < 10; i++) {
+                for (int i = 0; i < plugin.settingsManager.limitHealth; i++) {
                     if (tempHealth - heart > 0) {
                         tempHealth = tempHealth - heart;
 
-                        style = style + plugin.settingsManager.filledHeartIcon;
+                        style.append(plugin.settingsManager.filledHeartIcon);
                         left--;
                     } else {
                         break;
@@ -127,25 +127,25 @@ public class HealthUtil {
                 }
 
                 if (tempHealth > halfHeart) {
-                    style = style + plugin.settingsManager.filledHeartIcon;
+                    style.append(plugin.settingsManager.filledHeartIcon);
                     left--;
                 } else if (tempHealth > 0 && tempHealth <= halfHeart) {
-                    style = style + plugin.settingsManager.halfHeartIcon;
+                    style.append(plugin.settingsManager.halfHeartIcon);
                     left--;
                 }
             }
 
             if (maxHealth != health) {
                 for (int i = 0; i < left; i++) {
-                    style = style + plugin.settingsManager.emptyHeartIcon;
+                    style.append(plugin.settingsManager.emptyHeartIcon);
                 }
             } else {
                 for (int i = 0; i < left; i++) {
-                    style = style + plugin.settingsManager.filledHeartIcon;
+                    style.append(plugin.settingsManager.filledHeartIcon);
                 }
             }
 
-            output = output.replace("{usestyle}", style);
+            output = output.replace("{usestyle}", style.toString());
         }
 
         if (plugin.settingsManager.placeholderAPI) {

src/com/zeshanaslam/actionhealth/PreAction.java

@@ -1,16 +1,35 @@
 package com.zeshanaslam.actionhealth;
 
-import net.minecraft.server.v1_12_R1.ChatMessageType;
-import net.minecraft.server.v1_12_R1.IChatBaseComponent;
-import net.minecraft.server.v1_12_R1.PacketPlayOutChat;
-import org.bukkit.craftbukkit.v1_12_R1.entity.CraftPlayer;
+import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 
+import java.lang.reflect.InvocationTargetException;
+
 public class PreAction {
 
+    private final String packageVersion = Bukkit.getServer().getClass().getPackage().getName().replace(".", ",").split(",")[3];
+
     public PreAction(Player player, String message) {
-        IChatBaseComponent cbc = IChatBaseComponent.ChatSerializer.a("{\"text\": \"" + message + "\"}");
-        PacketPlayOutChat packetPlayOutChat = new PacketPlayOutChat(cbc, ChatMessageType.GAME_INFO);
-        ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packetPlayOutChat);
+        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;
     }
 }

src/com/zeshanaslam/actionhealth/SettingsManager.java

@@ -37,6 +37,7 @@ public class SettingsManager {
     public String enableMessage;
     public String disableMessage;
     public boolean placeholderAPI;
+    public int limitHealth;
 
     public SettingsManager(Main plugin) {
         // Clear settings for reloads
@@ -136,5 +137,13 @@ public class SettingsManager {
         } else {
             spectatorMode = true;
         }
+
+        if (plugin.getConfig().contains("Limit Health")) {
+            if (plugin.getConfig().isBoolean("Limit Health")) {
+                limitHealth = 10;
+            } else {
+                limitHealth = plugin.getConfig().getInt("Limit Health");
+            }
+        }
     }
 }