Merge pull request #8 from 4drian3d/check

Added check for enabled compatible plugins

src/dev/_2lstudios/viarewindpotions/Main.java

@@ -3,6 +3,7 @@
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.ProtocolManager;
 
+import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.PluginManager;
 import org.bukkit.plugin.java.JavaPlugin;
 
@@ -19,8 +20,19 @@ public void onEnable() {
 		final PluginManager pluginManager = getServer().getPluginManager();
 		final ProtocolManager protocolManager = ProtocolLibrary.getProtocolManager();
 
-		if (pluginManager.getPlugin("ViaRewind-Legacy-Support") == null || !configurationUtil.getConfiguration("%datafolder%/ViaRewind-Legacy-Support/config.yml").getBoolean("area-effect-cloud-particles"))
+		if (pluginManager.isPluginEnabled("ProtocolSupport") || pluginManager.isPluginEnabled("ViaRewind")) {
+			getLogger().info("ViaRewind/ProtocolSupport detected, enabling integration.");
+		} else if (pluginManager.isPluginEnabled("ViaBackwards")) {
+			getLogger().warning("ViaBackwards detected. In order to make ViaPotions work correctly, it is required that you have ViaRewind installed.");
+		} else {
+			getLogger().severe("No compatible plugins have been detected, disabling the plugin.");
+			getLogger().severe("In order to make ViaPotions functional, ViaRewind or ProtocolSupport must be installed.");
+			pluginManager.disablePlugin(this);
+		}
+
+		if (pluginManager.getPlugin("ViaRewind-Legacy-Support") == null || !configurationUtil.getConfiguration("%datafolder%/ViaRewind-Legacy-Support/config.yml").getBoolean("area-effect-cloud-particles")) {
 			pluginManager.registerEvents(new AreaEffectCloudListener(this, versionUtil), this);
+		}
 
 		protocolManager.addPacketListener(new SpawnEntityListener(this, versionUtil));
 		protocolManager.addPacketListener(new WorldEventAdapter(this, versionUtil));