Function EngineUpdate

engine/hid/src/test/test_app_hid.cpp:564–732

}

static UpdateResult EngineUpdate(void* _engine)
{
    EngineCtx* engine = (EngineCtx*)_engine;
    const uint32_t status_buffer_size = 16 * 1024;
    char status_buffer[16 * 1024];
    uint32_t status_offset = 0;
    uint32_t connected_keyboard_count = 0;
    uint32_t connected_gamepad_count = 0;

    dmHID::Update(engine->m_HidContext);

    dmPlatform::PollEvents(engine->m_Window);

    if (engine->m_InteractiveOutput)
    {
        AppendStatusLine(status_buffer, status_buffer_size, &status_offset, "HID input status\n");
        AppendStatusLine(status_buffer, status_buffer_size, &status_offset, "Last event: %s\n", engine->m_LastEvent);
        AppendStatusLine(status_buffer, status_buffer_size, &status_offset, "\nKeyboards\n");
    }

    for (int i = 0; i < dmHID::MAX_KEYBOARD_COUNT; ++i)
    {
        dmHID::HKeyboard keyboard = dmHID::GetKeyboard(engine->m_HidContext, i);
        if (!keyboard)
            continue;
        if (!dmHID::IsKeyboardConnected(keyboard))
            continue;

        dmHID::KeyboardPacket packet;
        if (!GetKeyboardPacket(keyboard, &packet))
        {
            printf("failed to get keyboard packet\n");
            continue;
        }

        int packet_changed = memcmp(&packet, &engine->m_OldKeyboardPackets[i], sizeof(dmHID::KeyboardPacket)) != 0;
        memcpy(&engine->m_OldKeyboardPackets[i], &packet, sizeof(dmHID::KeyboardPacket));

        if (engine->m_InteractiveOutput)
        {
            ++connected_keyboard_count;
            AppendKeyboardStatus(status_buffer, status_buffer_size, &status_offset, i, &packet);
        }
        else if (packet_changed)
        {
            printf("KEYBOARD %d:", i);

            bool has_pressed_keys = false;
            for (int j = dmHID::KEY_SPACE; j < dmHID::MAX_KEY_COUNT; ++j)
            {
                if (GetKey(&packet, (dmHID::Key)j))
                {
                    printf(" KEY %s (%d)", KeyToStr((dmHID::Key)j), j);
                    has_pressed_keys = true;
                }
            }

            if (!has_pressed_keys)