Cargo.lock

@@ -3337,6 +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"
@@ -3710,6 +3716,14 @@ version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "92ecc6618181def0457392ccd0ee51198e065e016d1d527a7ac1b6dc7c1f09d2"
 
+[[package]]
+name = "jiang"
+version = "0.1.0"
+dependencies = [
+ "hashbag",
+ "jong-types",
+]
+
 [[package]]
 name = "jni"
 version = "0.21.1"

Cargo.toml

@@ -1,6 +1,6 @@
 [workspace]
 resolver = "3"
-members = ["jong", "jong-types", "spacetimedb"]
+members = ["jiang","jong", "jong-types", "spacetimedb"]
 
 [workspace.dependencies]
 jong = { version = "0.1.0", path = "jong" }

jiang/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "jiang"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+hashbag = "0.1.13"
+jong-types.workspace = true

jiang/src/lib.rs

@@ -0,0 +1,62 @@
+use std::collections::HashMap;
+
+use hashbag::HashBag;
+use jong_types::*;
+
+// pub fn check_valid() {}
+
+pub enum Meldable {
+    Chii(Tile, Tile),
+    Pon,
+    Kan,
+}
+
+pub fn find_meldables(hand: &[Tile], dealt: Tile) -> Vec<Meldable> {
+    let counts = hand.iter().fold(HashMap::new(), |mut m, t| {
+        let e = m.entry(t).or_insert(0);
+        *e += 1;
+        m
+    });
+
+    let mut calls = vec![];
+
+    // find pon & kan
+    if let Some(&count) = counts.get(&dealt) {
+        if count == 3 {
+            calls.push(Meldable::Kan)
+        } else if count == 2 {
+            calls.push(Meldable::Pon)
+        }
+    }
+
+    // find chii
+    if let Some(next_outer) = dealt.next_rank() {
+        if let Some(next_inner) = next_outer.next_rank()
+            && counts.contains_key(&next_outer)
+            && counts.contains_key(&next_inner)
+        {
+            calls.push(Meldable::Chii(next_outer, next_inner));
+        }
+        if let Some(prev_inner) = next_outer.prev_rank()
+            && counts.contains_key(&next_outer)
+            && counts.contains_key(&prev_inner)
+        {
+            calls.push(Meldable::Chii(next_outer, prev_inner));
+        }
+    }
+    if let Some(prev_outer) = dealt.prev_rank()
+        && let Some(prev_inner) = prev_outer.prev_rank()
+        && counts.contains_key(&prev_outer)
+        && counts.contains_key(&prev_inner)
+    {
+        calls.push(Meldable::Chii(prev_outer, prev_inner));
+    }
+
+    calls
+}
+
+pub fn check_ron(hand: &[Tile], melds: &[&[Tile]]) {
+    let bag: HashBag<Tile> = HashBag::from_iter(hand.iter().cloned());
+
+    
+}

jong-types/src/lib.rs

@@ -4,7 +4,7 @@ mod derive_alias {
         Eq = ::core::cmp::PartialEq, ::core::cmp::Eq;
         Ord = ..Eq, ::core::cmp::PartialOrd, ::core::cmp::PartialEq, ::core::cmp::Ord;
 
-        Base = ::core::fmt::Debug, ..Copy, ..Ord;
+        Base = ::core::fmt::Debug, ..Copy, ..Ord, ::core::hash::Hash;
     }
 }
 use derive_aliases::derive;
@@ -13,7 +13,7 @@ use bevy::prelude::*;
 use spacetimedb::SpacetimeType;
 use strum::{EnumCount, FromRepr};
 
-#[derive(..Base, Hash, Default, FromRepr)]
+#[derive(..Base, Default, FromRepr)]
 #[derive(States, SpacetimeType)]
 pub enum GameState {
     #[default]
@@ -41,18 +41,6 @@ pub enum Suit {
     Dragon(Dragon),
 }
 
-impl Suit {
-    pub fn rank(&self) -> Option<Rank> {
-        match self {
-            Suit::Man(rank) => Some(*rank),
-            Suit::Pin(rank) => Some(*rank),
-            Suit::Sou(rank) => Some(*rank),
-            // Suit::Wind(wind) | Suit::Dragon(dragon) => None,
-            _ => None,
-        }
-    }
-}
-
 #[derive(
     ..Base,
     Deref,
@@ -63,6 +51,49 @@ pub struct Rank {
     pub number: u8,
 }
 
+impl Tile {
+    pub fn next_rank(self) -> Option<Self> {
+        match self.suit {
+            Suit::Man(rank) if rank.number < 9 => Some(Tile {
+                suit: Suit::Man(Rank {
+                    number: rank.number + 1,
+                }),
+            }),
+            Suit::Pin(rank) if rank.number < 9 => Some(Tile {
+                suit: Suit::Pin(Rank {
+                    number: rank.number + 1,
+                }),
+            }),
+            Suit::Sou(rank) if rank.number < 9 => Some(Tile {
+                suit: Suit::Sou(Rank {
+                    number: rank.number + 1,
+                }),
+            }),
+            _ => None,
+        }
+    }
+    pub fn prev_rank(self) -> Option<Self> {
+        match self.suit {
+            Suit::Man(rank) if rank.number > 1 => Some(Tile {
+                suit: Suit::Man(Rank {
+                    number: rank.number - 1,
+                }),
+            }),
+            Suit::Pin(rank) if rank.number > 1 => Some(Tile {
+                suit: Suit::Pin(Rank {
+                    number: rank.number - 1,
+                }),
+            }),
+            Suit::Sou(rank) if rank.number > 1 => Some(Tile {
+                suit: Suit::Sou(Rank {
+                    number: rank.number - 1,
+                }),
+            }),
+            _ => None,
+        }
+    }
+}
+
 #[derive(
     ..Base,
     FromRepr,

jong/src/game.rs

@@ -227,7 +227,9 @@ fn on_lobby_insert_update(
                     }
                     stdb::TurnState::Menzen => todo!(),
                     stdb::TurnState::RiichiKan => todo!(),
-                    stdb::TurnState::Discard => todo!(),
+                    stdb::TurnState::Discard => {
+                        // TODO check if can call reducer here maybe?
+                    }
                     stdb::TurnState::RonChiiPonKan => todo!(),
                     stdb::TurnState::End => todo!(),
                 }

spacetimedb/src/tables/player.rs

@@ -4,6 +4,7 @@ use spacetimedb::{SpacetimeType, table};
 use super::DbTile;
 
 // FIXME this shant be public, use views
+// TODO split up tables so we aren't sending this over the wire every update, or is differencial handled already
 #[table(name = player, public)]
 #[derive(Debug)]
 pub struct Player {
@@ -26,6 +27,7 @@ pub struct Player {
     pub pond: Vec<DbTile>,
 
     pub drawn_tile: Option<DbTile>,
+    pub actionable: Option<()>,
 }
 
 #[table(name = bot)]