might work now actually

src/main/java/spigey/asteroide/AsteroideAddon.java

@@ -48,6 +48,7 @@ public void onInitialize() {
         addModule(new AutoLoginModule());
         addModule(new InvCleanerModule());
         addModule(new BorderNoclipModule());
+        addModule(new WordFilterModule());
 
         // Commands
         addCommand(new CrashAll());

src/main/java/spigey/asteroide/mixin/ChatMessageC2SMixin.java

@@ -1,27 +1,60 @@
 package spigey.asteroide.mixin;
 
 import meteordevelopment.meteorclient.systems.modules.Modules;
+import net.minecraft.network.PacketByteBuf;
+import net.minecraft.network.message.LastSeenMessageList;
+import net.minecraft.network.message.MessageSignatureData;
 import net.minecraft.network.packet.c2s.play.ChatMessageC2SPacket;
 import net.minecraft.world.border.WorldBorder;
-import org.spongepowered.asm.mixin.Final;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Overwrite;
-import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.*;
 import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.ModifyArg;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 import spigey.asteroide.modules.WordFilterModule;
 
+import java.time.Instant;
+
 import static meteordevelopment.meteorclient.utils.player.ChatUtils.info;
 
 @Mixin(ChatMessageC2SPacket.class)
 public abstract class ChatMessageC2SMixin {
+    @Mutable
+    @Shadow
+    @Final
+    private String chatMessage;
+
     /**
      * @author Spigey
      * @reason Word Filter
-     *
-    @Overwrite
-    public String chatMessage(){
-        if(Modules.get().get(WordFilterModule.class).isActive()) return "WOAH DUDE!!! IT WORKED!!!111";
-        return "ermm what the sigma.";
-    } */
+     */
+    @Inject(method = "<init>(Ljava/lang/String;Ljava/time/Instant;JLnet/minecraft/network/message/MessageSignatureData;Lnet/minecraft/network/message/LastSeenMessageList$Acknowledgment;)V", at = @At("RETURN"))
+    private void onChatMessageC2SPacket(String string, Instant timestamp, long salt, MessageSignatureData signature, LastSeenMessageList.Acknowledgment acknowledgment, CallbackInfo ci){
+        if(!Modules.get().get(WordFilterModule.class).isActive()) return;
+        WordFilterModule filter = Modules.get().get(WordFilterModule.class);
+        String content = this.chatMessage;
+        String[] datshit = content.split(" ");
+        StringBuilder message = new StringBuilder();
+        boolean pleasekillme = false;
+        for (int i = 0; i < datshit.length; i++) {
+            for (int j = 0; j < filter.messages.get().size(); j++) {
+                if (datshit[i].toLowerCase().contains(filter.messages.get().get(j).toLowerCase())) {
+                    pleasekillme = true;
+                    if (filter.woblox.get()) {
+                        String temp = "";
+                        for (int k = 0; k < datshit[i].length(); k++) {
+                            temp += filter.roblock.get();
+                        }
+                        datshit[i] = temp;
+                    } else {
+                        datshit[i] = filter.replacement.get();
+                    }
+                }
+            }
+        }
+        for (int i = 0; i < datshit.length; i++) {
+            message.append(datshit[i]).append(" ");
+        }
+        if (pleasekillme && !content.trim().equalsIgnoreCase(message.toString().trim())) this.chatMessage = content;
+    }
 }

src/main/java/spigey/asteroide/modules/WordFilterModule.java

@@ -20,26 +20,26 @@ public WordFilterModule() {
     }
 
     final SettingGroup sgGeneral = settings.getDefaultGroup();
-    private final Setting<List<String>> messages = sgGeneral.add(new StringListSetting.Builder()
+    public final Setting<List<String>> messages = sgGeneral.add(new StringListSetting.Builder()
         .name("messages to filter")
         .description("Filter these messages")
         .defaultValue("cum", "sex", "dick", "nigga", "nigger", "retard", "hitler")
         .build()
     );
-    private final Setting<Boolean> woblox = sgGeneral.add(new BoolSetting.Builder()
+    public final Setting<Boolean> woblox = sgGeneral.add(new BoolSetting.Builder()
         .name("Roblox-like Replacement")
         .description("Filters the message to look more like roblox filtering")
         .defaultValue(false)
         .build()
     );
-    private final Setting<String> replacement = sgGeneral.add(new StringSetting.Builder()
+    public final Setting<String> replacement = sgGeneral.add(new StringSetting.Builder()
         .name("filter replacement")
         .description("String to replace filtered messages with")
         .defaultValue("@$#!?&")
         .visible(() -> !woblox.get())
         .build()
     );
-    private final Setting<String> roblock = sgGeneral.add(new StringSetting.Builder()
+    public final Setting<String> roblock = sgGeneral.add(new StringSetting.Builder()
         .name("roblox-like filter replacement")
         .description("String to replace filtered messages with")
         .defaultValue("#")