Function update_state

src/SB/Game/zDiscoFloor.cpp:312–369

    }

    void update_state(z_disco_floor& df, F32 dt)
    {
        df.state_time += dt;

        if (df.state_time < df.state_delay)
        {
            return;
        }

        if (df.state_time - dt < df.state_delay)
        {
            dt = df.state_time - df.state_delay;
        }

        df.state_time = 0.0f;
        df.next_state = df.state + (df.flag.forward ? 1 : -1);

        if (df.next_state < df.min_state)
        {
            if (df.asset->flags & 0x1)
            {
                df.next_state = df.max_state;
            }
            else
            {
                df.next_state = df.state;
            }
        }

        if (df.next_state > df.max_state)
        {
            if (df.asset->flags & 0x1)
            {
                df.next_state = df.min_state;
            }
            else
            {
                df.next_state = df.state;
            }
        }

        translate_mask(df.next_state_mask, df.state_masks[df.next_state], df.tiles_size);

        if (df.transition_delay <= dt)
        {
            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));
        }
        else
        {
            df.transition_time = 0.0f;
        }

        refresh_state(df);
    }