(fix) infinite hold

src/game.rs

@@ -8,6 +8,7 @@ pub struct Game {
  current: PhysicalPiece,
  next: Piece,
  held: Option<Piece>,
+ has_held: bool,
  score: u32,
  rng: rand::rngs::ThreadRng,
  time: Instant
@@ -30,6 +31,7 @@ impl Game {
  },
  next: *PIECES[rng.gen_range(0..PIECE_COUNT)],
  held: None,
+ has_held: false,
  score: 0,
  rng,
  time: Instant::now()
@@ -39,7 +41,7 @@ impl Game {
  pub fn update(&mut self) {
  let now = Instant::now();
  let delta = now.duration_since(self.time).as_millis();
- if delta > 100 {
+ if delta > 150 {
  self.tick();
  self.time = now;
  }
@@ -50,11 +52,14 @@ impl Game {
  self.boup();
  let cleared = self.clear_lines();
  self.score += self.compute_score(cleared);
+ self.has_held = false;
  }
  }
 
  fn hold(&mut self) {
- if self.held.is_none() {
+ if self.has_held {
+ return;
+ } else if self.held.is_none() {
  self.held = Some(self.current.piece);
  self.spawn_new();
  } else {
@@ -67,6 +72,7 @@ impl Game {
  piece: bkp.unwrap()
  };
  }
+ self.has_held = true;
  }
 
  pub fn handle_input(&mut self, keycode: char) {