pack_builder.rs

extern crate rand;

use rand::prelude::*;
use std::fmt;

#[derive(Debug, Clone)]
pub struct Item {
    pub id: u32,
    pub name: String,
}

impl Item {
    pub fn new(id: u32, name: &str) -> Item {
        Item {
            id: id,
            name: String::from(name),
        }
    }
}

impl fmt::Display for Item {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "[{}] {}", self.id, self.name)
    }
}

#[derive(Debug, Clone)]
pub struct Pack {
    pub common: Vec<Item>,
    pub uncommon: Vec<Item>,
    pub rare: Vec<Item>,
    pub equipment: Vec<Item>,
}

impl Pack {
    pub fn print_pack(&mut self) {
        let mut rng = rand::thread_rng();
        self.common.shuffle(&mut rng);
        self.uncommon.shuffle(&mut rng);
        self.rare.shuffle(&mut rng);
        self.equipment.shuffle(&mut rng);
        println!("Pack: ");
        for index in 0..3 {
            println!("  Common: {}", &self.common[index]);
        }
        for index in 0..2 {
            println!("  Uncommon: {}", &self.uncommon[index]);
        }
        for index in 0..1 {
            println!("  Rare: {}", &self.rare[index]);
        }
        for index in 0..1 {
            println!("  Equipment: {}", &self.equipment[index]);
        }
    }
}

fn main() {
    // ^(.*)\t(.*)$
    // Item::new($1,"$2"),
    let mut pack = Pack {
        common: vec![
            Item::new(58, "Backup Magazine"),
            Item::new(16, "Bustling Fungus"),
            Item::new(27, "Cautious Slug"),
            Item::new(17, "Crowbar"),
            Item::new(57, "Energy Drink"),
            Item::new(8, "Goat Hoof"),
            Item::new(7, "Lens-Maker's Glasses"),
            Item::new(36, "Medkit"),
            Item::new(29, "Personal Shield Generator"),
            Item::new(0, "Soldier's Syringe"),
            Item::new(59, "Sticky Bomb"),
            Item::new(41, "Stun Grenade"),
            Item::new(1, "Tougher Times"),
            Item::new(20, "Tri-Tip Dagger"),
        ],
        uncommon: vec![
            Item::new(3, "AtG Missile Mk.1"),
            Item::new(65, "Chronobauble"),
            Item::new(30, "Fuel Cell"),
            Item::new(26, "Harvester's Scythe"),
            Item::new(9, "Hopoo Feather"),
            Item::new(64, "Kjaro's Band"),
            Item::new(13, "Leeching Seed"),
            Item::new(25, "Old War Stealthkit"),
            Item::new(19, "Predatory Instincts"),
            Item::new(21, "Red Whip"),
            Item::new(62, "Rose Buckler"),
            Item::new(63, "Runald's Band"),
            Item::new(11, "Ukulele"),
            Item::new(76, "Wax Quail"),
            Item::new(53, "Queen's Gland"),
            Item::new(52, "Titanic Knurl"),
        ],
        rare: vec![
            Item::new(35, "57 Leaf Clover"),
            Item::new(50, "Alien Head"),
            Item::new(2, "Brilliant Behemoth"),
            Item::new(66, "Dio's Best Friend"),
            Item::new(22, "H3AD-5T v2"),
            Item::new(68, "Hardlight Afterburner"),
            Item::new(31, "N'kuhana's Opinion"),
            Item::new(75, "Rejuvenation Rack"),
            Item::new(38, "Sentient Meat Hook"),
            Item::new(32, "Unstable Tesla Coil"),
            Item::new(71, "Corpsebloom"),
            Item::new(74, "Gesture of the Drowned"),
            Item::new(43, "Shaped Glass"),
            Item::new(49, "Transcendence"),
        ],
        equipment: vec![
            Item::new(26, "Effigy of Grief"),
            Item::new(23, "Helfire Tincture"),
            Item::new(0, "Disposable Missile Launcher"),
            Item::new(2, "Foreign Fruit"),
            Item::new(3, "Glowing Meteorite"),
            Item::new(21, "Gnarled Woodsprite"),
            Item::new(9, "Her Biting Embrace"),
            Item::new(5, "Ifrit's Distinction"),
            Item::new(18, "Milky Chrysalis"),
            Item::new(13, "Ocular HUD"),
            Item::new(16, "Preon Accumulator"),
            Item::new(11, "Primordial Cube"),
            Item::new(19, "Royal Capacitor"),
            Item::new(6, "Silence Between Two Strikes"),
            Item::new(14, "The Back-up"),
        ],
    };

    println!("```");
    for _ in 0..3 {
        pack.print_pack();
    }
    println!("```");
}