added LoginMessage module

src/main/java/me/zeroeightsix/kami/module/modules/chat/LoginMessage.java

@@ -0,0 +1,52 @@
+package me.zeroeightsix.kami.module.modules.chat;
+
+import me.zero.alpine.listener.EventHandler;
+import me.zero.alpine.listener.Listener;
+import me.zeroeightsix.kami.KamiMod;
+import me.zeroeightsix.kami.event.events.PacketEvent;
+import me.zeroeightsix.kami.module.Module;
+import me.zeroeightsix.kami.util.MessageSendHelper;
+import net.minecraft.network.play.server.SPacketChat;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+
+@Module.Info(
+          name = "LoginMessage",
+          description = "Sends a given message to public chat on login.",
+          category = Module.Category.CHAT
+)
+public class LoginMessage extends Module {
+    private String loginMessage;
+    private boolean sent = false;
+
+    @Override
+    protected void onEnable() {
+        BufferedReader reader;
+
+        try {
+            MessageSendHelper.sendChatMessage(getChatName() + "Finding login message from loginmsg.txt...");
+            reader = new BufferedReader(new FileReader("loginmsg.txt"));
+
+            loginMessage = reader.readLine();
+
+            reader.close();
+        } catch (FileNotFoundException e) {
+            MessageSendHelper.sendErrorMessage(getChatName() + "The file '&7loginmsg.txt&f' was not found in your .minecraft folder. Create it and add a message to enable this module.");
+            disable();
+        } catch (IOException e) {
+            KamiMod.log.error(e);
+        }
+    }
+
+    @EventHandler
+    public Listener<PacketEvent.Receive> serverConnectedEventListener = new Listener<>(event -> {
+        if (event.getPacket() instanceof SPacketChat && !sent) {
+            mc.player.sendChatMessage(loginMessage);
+
+            sent = true;
+        }
+    });
+}