From 3143e5964b2025edaafa998941108ca36e681c84 Mon Sep 17 00:00:00 2001
From: Tao Tien <29749622+taotien@users.noreply.github.com>
Date: Sat, 14 Feb 2026 20:05:04 -0800
Subject: [PATCH]

---
 Cargo.lock       |  8 +++++++-
 jiang/Cargo.toml |  1 +
 jiang/src/lib.rs | 16 +++++-----------
 3 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 1a86ab2..8df40c7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1229,7 +1229,6 @@ dependencies = [
  "bitflags 2.10.0",
  "color-eyre",
  "ratatui",
- "smol_str",
  "tracing",
 ]
 
@@ -3338,6 +3337,12 @@ dependencies = [
  "byteorder",
 ]
 
+[[package]]
+name = "hashbag"
+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7040a10f52cba493ddb09926e15d10a9d8a28043708a405931fe4c6f19fac064"
+
 [[package]]
 name = "hashbrown"
 version = "0.12.3"
@@ -3715,6 +3720,7 @@ checksum = "92ecc6618181def0457392ccd0ee51198e065e016d1d527a7ac1b6dc7c1f09d2"
 name = "jiang"
 version = "0.1.0"
 dependencies = [
+ "hashbag",
  "jong-types",
 ]
 
diff --git a/jiang/Cargo.toml b/jiang/Cargo.toml
index eb1b523..eeb2ed3 100644
--- a/jiang/Cargo.toml
+++ b/jiang/Cargo.toml
@@ -4,4 +4,5 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+hashbag = "0.1.13"
 jong-types.workspace = true
diff --git a/jiang/src/lib.rs b/jiang/src/lib.rs
index 89010fc..2a698f7 100644
--- a/jiang/src/lib.rs
+++ b/jiang/src/lib.rs
@@ -1,11 +1,11 @@
 use std::collections::HashMap;
 
+use hashbag::HashBag;
 use jong_types::*;
 
 // pub fn check_valid() {}
 
 pub enum Meldable {
-    Ron,
     Chii(Tile, Tile),
     Pon,
     Kan,
@@ -52,17 +52,11 @@ pub fn find_meldables(hand: &[Tile], dealt: Tile) -> Vec<Meldable> {
         calls.push(Meldable::Chii(prev_outer, prev_inner));
     }
 
-    // find ron
-
     calls
 }
 
-fn count_shapes(hand: &[Tile]) {
-    let hand = if !hand.is_sorted() {
-        let mut hand = hand.to_vec();
-        hand.sort();
-        &hand
-    } else {
-        hand
-    };
+pub fn check_ron(hand: &[Tile], melds: &[&[Tile]]) {
+    let bag: HashBag<Tile> = HashBag::from_iter(hand.iter().cloned());
+
+    
 }