Implement navigation_sound_event feature

[puppleStar77]

Euro Truck Simulator 2 (ETS2) has navigation voice sounds in numerous languages. However, there are still unsupported countries and languages, and there are also many low-quality voice instructions. In the Multi-mode(TruckerMP), Eurotruck mode is not available. Therefore, I implemented the navigation_sound_event feature using the provided code. I am not good with English, C++, and reverse engineering, but I have tried my best and put in a lot of effort. This feature allows receiving navigation event sounds. Before proceeding with a pull request, I want to confirm if it is needed and desired by the project maintainers.

The new classes added are:

class sound_event_t
{
    class sound_player* sound_player; //0x0000
    char pad_0008[0x28];              //0x0008
    uint32_t is_playing;              //0x0030  1:playing, 4:stop? maybe?
    uint32_t something;               //0x0034
    class gl* glsl;                   //0x0038
    char pad_003c[0x18];              //0x0040
    class gl* glsl2;                  //0x0060
    char* sound_event_name_with_file; //0x0060
    char pad_0068[0x50];              //0x0068

public:
    uint32_t get_is_playing() const {
        return is_playing;
    }
    const char* const get_sound_event_name_with_file_name() const {
        return sound_event_name_with_file;
    }
};

class navigation_sound_event
{
    uint32_t pad_0000;                  //0x0000
    uint32_t pad_0004;                  //0x0004
    char *event_name;                   //0x0008
    uint32_t pad_0010;                  //0x0010
    uint32_t pad_0014;                  //0x0014
    class navigation* navi_instance;    //0x0018
    sound_event_t *sound_event;          //0x0020

public:
    sound_event_t *get_sound_event() const{
        return sound_event;
    }
    char* get_event_name() const {
        return event_name;
    }
};

To utilize the feature, you can use the following code snippet:

navigation_sound_event** ev = (unk_interior_parent->get_navigation_sound_events());
            for (short i = 0; i < unk_interior_parent->get_navigation_sound_events_count(); i++)
            {
                auto snd = ev + i;
                auto  now = (*snd)->get_sound_event()->get_is_playing();
                if (now == 1)
                {
                    if (played.size() < i)
                    {
                        played.resize(i + 1);
                    }
                    if (now != played[i])
                    {
                        fmod_manager_instance->set_event_state((*snd)->get_event_name(), true, true);
                        {
                            std::stringstream ss;
                            ss << "[ts-fmod-plugin] PlaySound : " << (*snd)->get_event_name();
                            scs_log(0, ss.str().c_str());
                        }
                    }
                }
                if (played.size() < i)
                {
                    played.resize(i + 1);
                }
                played[i] = now;

            }

[puppleStar77]

class unk_interior // still need to figure out what this actually is
{
    char pad_0000[184]; //0x0000
    bool interior_camera; //0x00B8 1 when camera is set to interior even when head out the window
    bool is_camera_inside; //0x00B9 1 if camera is inside, 0 when head through window
    char pad_00BA[2]; //0x00BA
    float camera_rotation_in_cabin; //0x00BC 0 = head straight, left is -, right is +, maybe different for UK??
    char pad_00C0[24]; //0x00C0
    unk_cabin_t* unk_cabin_ptr; //0x00D8
    vec2s_t window_state; //0x00E0 0 = closed, 1 = open
    char pad_00E8[1648]; //0x00E8
    navigation_sound_event* now_playing_navigation_sound;  // 0x0758
    char pad_0768[88]; //0x0768
    navigation_sound_event** navigation_sound_events; //0x07C0
    int64_t navigation_sound_events_count; //0x07C8
    char pad_07D0[5152]; //0x07D0
    bool should_have_echo; //0x1BF0

I updated the storage location for the currently playing navigation sound object to ensure better sound support.

[dariowouters]

Oh very nice thank you, I've seen multiple people ask about custom navigation sounds before so yes feel free to make a pull request.

[puppleStar77]

Thank you for your response. I will tidy up the code and submit the pull request soon.

[Victoria458]

Приветы)как это все сделать незнающему человеку? очень хочу свою навигацию