delay(50);

        int zap_delay = 50;
        // Scale delay to match change in arena_delay.
        if (crawl_state.arena)
        {
            zap_delay *= Options.arena_delay;
            zap_delay /= 600;
        }
        delay(zap_delay);

            delay(50);

            int explode_delay = 50;
            // Scale delay to match change in arena_delay.
            if (crawl_state.arena)
            {
                explode_delay *= Options.arena_delay;
                explode_delay /= 600;
            }
            delay(explode_delay);

        delay(150);

    {
        int explode_delay = 150;
        // Scale delay to match change in arena_delay.
        if (crawl_state.arena)
        {
            explode_delay *= Options.arena_delay;
            explode_delay /= 600;
        }
        delay(explode_delay);
    }