Made use of the max turns thing

Unsure I'll ever use it... eh

card_stuffs/src/lib.rs

@@ -189,7 +189,7 @@ impl Deck {
 }
 
 #[derive(Debug, Copy, Clone)]
-enum NumPassesThroughDeck {
+pub enum NumPassesThroughDeck {
     Unlimited,
     Limited(u64),
 }
@@ -202,7 +202,7 @@ pub struct Klondike {
     pub deck: Vec<Card>, // this term is a bit overloaded
     pub waste: Vec<Card>,
     pub foundation: [Vec<Card>; 4], // 4 = len of num suits
-    _max_num_passes_through_deck: NumPassesThroughDeck,
+    max_num_passes_through_deck: NumPassesThroughDeck,
     pub current_num_passes_through_deck: u64,
     pub num_cards_turned: u8,
 }
@@ -217,7 +217,15 @@ impl Klondike {
             }
         }
     }
+    // TODO return some sort of error
     pub fn waste_to_deck(self: &mut Self) {
+        match self.max_num_passes_through_deck {
+            NumPassesThroughDeck::Unlimited => (),
+            NumPassesThroughDeck::Limited(n) => if n >= self.current_num_passes_through_deck {
+                // no!
+                return
+            },
+        }
         if self.deck.len() != 0 {
             // no!
         } else {
@@ -247,7 +255,7 @@ impl Default for Klondike {
             deck: deck.cards,
             waste: Vec::new(),
             foundation: [Vec::new(), Vec::new(), Vec::new(), Vec::new()], // is this really the best way?
-            _max_num_passes_through_deck: NumPassesThroughDeck::Unlimited,
+            max_num_passes_through_deck: NumPassesThroughDeck::Unlimited,
             current_num_passes_through_deck: 0,
             num_cards_turned: 3,
         }

card_stuffs/src/main.rs

@@ -3,11 +3,10 @@ use card_stuffs::{self};
 
 use crossterm::event::{self, Event, KeyCode, KeyEvent, KeyEventKind};
 use ratatui::{
-    buffer::Buffer,
     layout::{Constraint, Layout, Rect, Flex},
     style::{Style, Stylize, Color},
     text::Line,
-    widgets::{Block, BorderType, Borders, ListItem, List, Widget, Paragraph},
+    widgets::{Block, BorderType, Borders, Paragraph},
     DefaultTerminal, Frame,
 };
 
@@ -90,6 +89,9 @@ fn deck_widget(cards_in_deck: &Vec<card_stuffs::Card>) -> Paragraph<'static> {
 }
 
 fn card_widget<'a>(card: &'a card_stuffs::Card, top: bool, highlight: bool, select: bool) -> Paragraph<'a> {
+    if !card.visible {
+        return facedown_card(top);
+    }
 
     let card_image = format!(
 "{value}{suit}