Here is an example outline for hooking chat spam in a Unity game:
cpp
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// Assume these Mono-related functions are correctly set up and working
typedef void (*ChatFunction)(MonoObject* message);
ChatFunction originalChatFunction = nullptr;
void ChatMessageHook(MonoObject* message) {
if (!message) return;
// Get the message string (MonoString)
MonoString* msgStr = mono_object_unbox(message);
const char* msg = mono_string_to_utf8(msgStr);
// Add your spam check logic here
if (IsSpam(msg)) {
// Handle spam (e.g., block the message)
return; // Prevent the message from being processed
}
// Otherwise, call the original function to process the chat message
originalChatFunction(message);
}
// Function to hook and install the hook
void InstallChatHook() {
// Find the method we're hooking (assumes you already have the method's address)
MonoMethod* targetMethod = mono_class_get_method_from_name(mono_get_class_from_name("GameNamespace", "ChatClass"), "SendMessage", -1);
// Hook the function using your preferred method (e.g., trampoline, inline hooking)
originalChatFunction = (ChatFunction)mono_method_get_unmanaged_thunk(targetMethod);
hookFunction(targetMethod, (void*)ChatMessageHook); // Hook the method to our custom function
}