everything should work smoothly now

opening-book/book-builder/src/main.rs

@@ -91,11 +91,11 @@ fn main() {
 
     dbg!(book.value_of_position(Board::new().into()));
 
+    dump(&book);
+
     book.compile(&[Board::new().into()]).save(
         std::fs::File::create("book.ccbook").unwrap()
     ).unwrap();
-
-    dump(&book);
 }
 
 fn convert(p: fumen::Piece) -> FallingPiece {

opening-book/pc-gen/src/main.rs

@@ -36,7 +36,7 @@ fn main() {
         let (send, recv) = crossbeam_channel::bounded(256);
         let count = &std::sync::atomic::AtomicUsize::new(0);
         let mut all_seq = all_sequences(initial_bag);
-        all_seq.retain(|(_,b)| b.hold.is_none());
+        all_seq.retain(|(_,b)| b.hold.is_none() || b.bag == EnumSet::all());
         let total = all_seq.len();
         println!("Working on PC book {} ({} queues)", i, total);
         rayon::scope(|s| {

opening-book/src/builder.rs

@@ -190,7 +190,7 @@ impl BookBuilder {
         self.0.keys().copied()
     }
 
-    pub fn compile(&self, roots: &[Position]) -> Book {
+    pub fn compile(mut self, roots: &[Position]) -> Book {
         let mut book = HashMap::new();
         let mut to_compile = roots.to_vec();
         while let Some(pos) = to_compile.pop() {
@@ -207,7 +207,7 @@ impl BookBuilder {
         Book(book)
     }
 
-    fn build_position(&self, pos: &Position) -> Vec<(Sequence, Option<FallingPiece>)> {
+    fn build_position(&mut self, pos: &Position) -> Vec<(Sequence, Option<FallingPiece>)> {
         let mut sequences = vec![];
         for (next, bag) in pos.next_possibilities() {
             for (queue, _) in possible_sequences(vec![], bag) {
@@ -216,8 +216,10 @@ impl BookBuilder {
                 sequences.push((seq, mv));
             }
         }
+        self.0.remove(pos);
         sequences.sort_by_key(|&(s, _)| s);
         sequences.dedup_by_key(|&mut (_, m)| m);
+        sequences.shrink_to_fit();
         sequences
     }
 }