[FEAT] Paper Support

Paper/src/main/java/com/hypherionmc/craterlib/common/PaperCompatHelper.java

@@ -0,0 +1,78 @@
+package com.hypherionmc.craterlib.common;
+
+import com.hypherionmc.craterlib.core.platform.CompatUtils;
+import com.hypherionmc.craterlib.core.platform.ModloaderEnvironment;
+import com.hypherionmc.craterlib.nojang.world.entity.player.BridgedPlayer;
+import com.hypherionmc.craterlib.utils.ChatUtils;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.metadata.MetadataValue;
+import org.bukkit.plugin.Plugin;
+
+import java.lang.reflect.Method;
+
+public class PaperCompatHelper implements CompatUtils {
+
+    @Override
+    public boolean isPlayerActive(BridgedPlayer player) {
+        // Essentials Vanish
+        if (ModloaderEnvironment.INSTANCE.isModLoaded("Essentials")) {
+            return !isEssentialsVanished(player);
+        }
+
+        // PhantomAdmin Vanish
+        if (ModloaderEnvironment.INSTANCE.isModLoaded("PhantomAdmin"))
+            return !isPhantomVanished(player);
+
+        // Other vanish mods
+        try {
+            Player p = (Player) player.toMojangServerPlayer();
+            for (MetadataValue meta : p.getMetadata("vanished")) {
+                if (meta.asBoolean()) return true;
+            }
+        } catch (Exception ignored) {}
+
+        return true;
+    }
+
+    @Override
+    public String getSkinUUID(BridgedPlayer player) {
+        return player.getStringUUID();
+    }
+
+    private boolean isEssentialsVanished(BridgedPlayer player) {
+        try {
+            Plugin p = Bukkit.getPluginManager().getPlugin("Essentials");
+            if (p == null)
+                return false;
+
+            Method getUser = p.getClass().getMethod("getUser", String.class);
+            Object essentialsPlayer = getUser.invoke(p, ChatUtils.resolve(player.getName(), false));
+
+            if (essentialsPlayer != null) {
+                Method isVanished = essentialsPlayer.getClass().getMethod("isVanished");
+                return (boolean) isVanished.invoke(essentialsPlayer);
+            }
+        } catch (Exception ignored) {}
+
+        return false;
+    }
+
+    private boolean isPhantomVanished(BridgedPlayer player) {
+        try {
+            Plugin p = Bukkit.getPluginManager().getPlugin("PhantomAdmin");
+            if (p == null)
+                return false;
+
+            Method isInvisible = p.getClass().getDeclaredMethod("isInvisible", Player.class);
+            isInvisible.setAccessible(true);
+
+            return (boolean) isInvisible.invoke(p, (Player) player.toMojangServerPlayer());
+        } catch (Exception ignored) {
+            ignored.printStackTrace();
+        }
+
+        return false;
+    }
+
+}