Function update_transition

src/SB/Game/zDiscoFloor.cpp:277–305

    size_t state_byte_size(size_t mask_size);

    F32 update_transition(z_disco_floor& df, F32 dt)
    {
        df.transition_time += dt;

        if (df.transition_time < df.transition_delay)
        {
            return 0.0f;
        }

        if (df.sound_delay > 0.05f)
        {
            play_sound(df);
        }

        if (df.transition_time - dt < df.transition_delay)
        {
            dt = df.transition_time - df.transition_delay;
        }

        df.state = df.next_state;
        df.state_counter++;

        memcpy(df.active_state_mask, df.next_state_mask,
               state_byte_size(df.asset->state_mask_size));

        refresh_state(df);

        return dt;
    }

    size_t state_byte_size(size_t mask_size)
    {