Function aim_player_ranged_attack

crawl-ref/source/throw.cc:658–702

Aim and then perform a standard ranged attack, either by autofight or the quiver interface.

// Aim and then perform a standard ranged attack, either by autofight or the quiver interface.
void aim_player_ranged_attack(quiver::action &a)
{
    ASSERT(a.get_item() >= 0);
    item_def* item = &you.inv[a.get_item()];
    const bool throwing = item->base_type == OBJ_MISSILES;

    if (you.confused())
    {
        do
        {
            a.target.target.x = you.pos().x + random2(13) - 6;
            a.target.target.y = you.pos().y + random2(13) - 6;
        } while (a.target.target == you.pos());

        a.target.isValid = true;
        a.target.cmd_result = CMD_FIRE;
    }
    else
    {
        // non-confused interactive or non-interactive firing
        fire_target_behaviour beh(a);
        direction_chooser_args args;
        args.behaviour = &beh;
        args.mode = TARG_HOSTILE;
        args.self = confirm_prompt_type::cancel;
        direction(a.target, args);
    }
    if (!a.target.isValid || a.target.isCancel)
        return;

    // Now that we have a target, set up the attacks and run tracers
    // (which may also adjust targeting slightly).
    vector<ranged_attack_beam> atks = _construct_player_ranged_beams(throwing ? item : nullptr);

    for (ranged_attack_beam& atk : atks)
        atk.beam.set_target(a.target);

    if (_trace_player_ranged_attacks(atks))
        return;

    // Actually perform the attack and spend time.
    you.time_taken = you.attack_delay(item).roll();
    _fire_player_ranged_attacks(atks);
    you.turn_is_over = true;
}

// Make the player immediately perform a ranged attack at a given target, optionally
// with a specific projectile. Does not handle spending time.