Гайд NotificationSystem

[ZeroXKiritsu]

struct notifications_t
{
    notifications_t( Color clr1, Color clr2, float time, std::string buffer  )
        : color( clr1 ), background_color( clr2 ), m_time( time ), buf( buffer ) { }
    Color color;
    Color background_color;
    float m_time;
    std::string buf;
};

class notifications : public singleton<notifications>
{
private:
    float text_offset = 5.f;
    std::deque< notifications_t > m_notifications;
public:
    auto add( bool display, Color color, const std::string message, ... ) -> void;
    auto clear( ) -> void;
    auto draw( ) -> void;
};

auto notifications::add( bool display, Color color, const std::string message, ... ) -> void
{
if( message.empty( ) )
        return;
    va_list va;
    std::string buf;
    va_start( va, message );
    const int str_len = std::vsnprintf( nullptr, 0, message.c_str( ), va );
    if( str_len < 0 ) {
        va_end( va );
        return;
    }
    buf.resize( str_len );
    std::vsnprintf( &buf[ 0 ], str_len + 1, message.c_str( ), va );
    if( m_notifications.size( ) > 15 )
        m_notifications.pop_front( );
    g_sdk.convar->print_to_console( Color( 206, 115, 136 ), "[ur ware name there]" );
    g_sdk.convar->print_to_console( Color( 255, 255, 255 ), " %s\n", buf.c_str( ) );
    if( display )
        m_notifications.emplace_back( color, Color(0, 0, 0,125 ), g_sdk.global_vars->cur_time, buf );
}
auto notifications::clear( ) -> void
{
m_notifications.clear( );
}
auto notifications::draw( ) -> void
{
    int height = 5;

    for( size_t i = 0; i < m_notifications.size( ); i++ ) {
        auto &notification = m_notifications.at( i );

        Color &color = notification.color;
        Color &shadow_color = notification.background_color;
        const float cur_time = notification.m_time;
        std::string message = notification.buf;

        if( g_sdk.global_vars->cur_time - cur_time > text_offset ) {
            int alpha = static_cast< int >( color.a( ) * 255.f - 255 / 1.f * std::max( g_sdk.global_vars->frametime, 0.01f ) );
            if( alpha > 255 )
                alpha = 255;
            if( alpha < 0 )
                alpha = 0;

            if( !alpha ) {
                m_notifications.erase( m_notifications.begin( ) + i );
                continue;
            }

            Color col = color;
            color =Color( col.r( ) * 255.f, col.g( ) * 255.f, col.b( ) * 255.f,alpha);

            Color shadow_col = shadow_color;
            shadow_color = Color( shadow_col.r( ) * 255.f, shadow_col.g( ) * 255.f, shadow_col.b( ) * 255.f,alpha);
        }

        render::get().text(  render::get().get_font( FONT_VERDANA), color, shadow_color, 8, height, DROPSHADOW, message );

        height += render::get().get_font( FONT_VERDANA)->GetHeight( ) + 1;
    }
}

В ендсцене либо презенте

notifications::get().draw( );

Пример добавления текста в систему

notifications::get().add( true, ctx.clr, "%s bought %s", info.player_name, event->get_string( "weapon" ) );