diff -r 3d9dba5b16e0 -r a2f0cb2b5c13 src/table.rs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/table.rs	Tue Jan 31 23:25:50 2023 +0100
@@ -0,0 +1,99 @@
+/*** Table ****/
+
+use std::collections::VecDeque;
+
+use crate::card::Card;
+use crate::row::Row;
+use crate::player::PlayerCard;
+
+#[derive(Debug)]
+pub(crate) struct Table {
+    rows: Vec<Row>,
+    player_cards: VecDeque<PlayerCard>, // owned by a player
+}
+
+impl Table {
+    pub(crate) fn new(row_cards: VecDeque<Card>) -> Self {
+        let mut rows = Vec::with_capacity(5);
+        for card in row_cards {
+            // create a new row then put a card into it
+            let mut row = Row::new();
+            if let Some(_c) = row.push_or_collect(card) {
+                panic!("Freshly created row overflowed");
+            }
+            rows.push( row );
+        }
+
+        Table {
+            rows,
+            player_cards: VecDeque::new(),
+        }
+    }
+
+    pub(crate) fn lay_player_card( &mut self, card: Card, player_id: i32 ) {
+        self.player_cards.push_back( PlayerCard { player_id, card } );
+    }
+
+    pub(crate) fn sort_cards( &mut self ) {
+        self.player_cards.make_contiguous().sort_by( |a,b| b.card.cmp(&a.card) );
+    }
+
+    pub(crate) fn has_player_cards( &self ) -> bool {
+        self.player_cards.len() > 0
+    }
+
+    pub(crate) fn get_smallest_player_card( &mut self ) -> PlayerCard {
+        // FIXME: check!
+        self.player_cards.pop_back().expect("out of player cards on table")
+    }
+
+    pub(crate) fn get_closest_row( &self, pcard: &PlayerCard ) -> Option<usize> {
+        // get the row id with last card closest smaller to players'
+        let row_heads = self.get_row_heads();
+        let mut closest_val = None;
+        let mut diff = 127;
+        for i in 0..row_heads.len() {
+            if row_heads[i] < pcard.card.value && pcard.card.value - row_heads[i] < diff {
+                closest_val = Some(i);
+                diff = pcard.card.value - row_heads[i];
+                // println!("DEBUG: pcard {}, row {}, head {}, diff {}, closest {:?}", pcard.card.value, i, row_heads[i], diff, closest_val);
+            }
+        }
+
+        closest_val
+    }
+
+    pub(crate) fn put_card_into_row( &mut self, pcard: PlayerCard, row_id: usize ) -> Option<VecDeque<Card>> {
+        self.rows[row_id as usize].push_or_collect(pcard.card)
+    }
+
+    pub(crate) fn get_row_heads( &self ) -> Vec<i8> {
+        let mut heads: Vec<i8> = Vec::new();
+        for i in 0..self.rows.len() {
+            heads.push( self.rows[i].last_card_value() );
+        }
+        heads
+    }
+
+    // take a whole row and hand it over
+    pub(crate) fn take_row( &mut self, row_id: usize ) -> VecDeque<Card> {
+        self.rows[row_id].take_row()
+    }
+
+    // collect remaining cards in the rows at the end of round
+    pub(crate) fn collect_rows( &mut self ) -> VecDeque<Card> {
+        let mut cards = VecDeque::new();
+        for row in 0..self.rows.len() {
+            self.rows[row]
+                .take_row()
+                .into_iter()
+                .for_each(|card| cards.push_back(card));
+        }
+        cards
+    }
+
+    pub fn peek_rows(&self) -> &Vec<Row> {
+        &self.rows
+    }
+}
+