void game_step()

in procgen/src/games/bossfight.cpp [348:413]
55 lines of code
10 McCabe index (conditional complexity)

    void game_step() override {
        BasicAbstractGame::game_step();

        // spawn_barriers();

        shields->x = boss->x;
        shields->y = boss->y;

        rand_pct = rand_gen.rand01();
        rand_fire_pct = rand_gen.rand01();
        rand_pct_x = rand_gen.rand01();
        rand_pct_y = rand_gen.rand01();

        if (curr_vel_timeout <= 0) {
            float dest_x = rand_pct_x * (main_width - 2 * BOSS_R) + BOSS_R;
            float dest_y = rand_pct_y * (main_height - 2 * BOSS_R - BOTTOM_MARGIN) + BOSS_R + BOTTOM_MARGIN;
            boss->vx = (dest_x - boss->x) / boss_vel_timeout;
            boss->vy = (dest_y - boss->y) / boss_vel_timeout;
            curr_vel_timeout = boss_vel_timeout;

            if (time_to_swap > 0) {
                time_to_swap -= 1;
            } else {
                if (shields_are_up) {
                    time_to_swap = vulnerable_duration;
                } else {
                    time_to_swap = invulnerable_duration;
                }

                shields_are_up = !shields_are_up;
            }
        } else {
            curr_vel_timeout -= 1;
        }

        if (special_action == 1 && (cur_time - last_fire_time) >= 3) {
            auto new_bullet = add_entity(agent->x, agent->y, 0, PLAYER_BULLET_VEL, .25, PLAYER_BULLET);
            new_bullet->image_theme = player_laser_theme;
            new_bullet->collides_with_entities = true;
            new_bullet->expire_time = 25;
            last_fire_time = cur_time;
        }

        if (damaged_until_time >= cur_time) {
            damaged_mode();
        } else if (shields_are_up) {
            active_attack();
        } else {
            passive_attack_mode();
        }

        for (int i = (int)(entities.size()) - 1; i >= 0; i--) {
            auto ent = entities[i];

            if (ent->type == ENEMY_BULLET) {
                float v_trail = .5;
                auto trail = add_entity_rxy(ent->x, ent->y, ent->vx * v_trail, ent->vy * v_trail, ent->rx, ent->ry, LASER_TRAIL);
                trail->alpha_decay = 0.7f;
                trail->image_type = ENEMY_BULLET;
                trail->image_theme = boss_laser_theme;
                trail->vrot = ent->vrot;
                trail->rotation = ent->rotation;
                trail->expire_time = 8;
            }
        }
    }