Initial implementations of all card ops

src/card.rs

@@ -114,19 +114,177 @@ impl Card {
 
   /// Cuts this Card on the given line. Returns two cards
   pub fn cut(self, line: CutLine) -> (Self, Self) {
-    todo!();
+    let is_cut: fn(usize, usize) -> bool = match line {
+      CutLine::VertLeft => |x, _| x > 0,
+      CutLine::VertRight => |x, _| x > 1,
+      CutLine::HorizUpper => |_, y| y > 0,
+      CutLine::HorizLower => |_, y| y > 1,
+    };
+
+    let mut first_card = Self::default();
+    let mut second_card = Self::default();
+
+    macro_rules! perform_cut {
+      ( $dir:ident, $index:literal ) => {
+        if is_cut($index % 3, $index / 3) {
+          second_card.cells[$index] = self.cells[$index];
+          second_card.$dir = self.$dir;
+        } else {
+          first_card.cells[$index] = self.cells[$index];
+          first_card.$dir = self.$dir;
+        }
+      };
+
+      ( $index:literal ) => {
+        if is_cut($index % 3, $index / 3) {
+          second_card.cells[$index] = self.cells[$index];
+        } else {
+          first_card.cells[$index] = self.cells[$index];
+        }
+      };
+    }
+
+    perform_cut!(nw, 0);
+    perform_cut!(n, 1);
+    perform_cut!(ne, 2);
+    perform_cut!(w, 3);
+    perform_cut!(4);
+    perform_cut!(e, 5);
+    perform_cut!(sw, 6);
+    perform_cut!(s, 7);
+    perform_cut!(se, 8);
+
+    (first_card, second_card)
   }
 
   pub fn flip(self, flip: FlipDir) -> Self {
-    todo!();
+    let mut new_card = Self::default();
+
+    // Check for doors
+    macro_rules! assign_cell {
+      ( ($source_dir:ident, $source_index:literal), ($dest_dir:ident, $dest_index:literal), $repeat:expr ) => {
+        new_card.cells[$dest_index] = self.cells[$source_index];
+        new_card.$dest_dir = self.$source_dir;
+        if $repeat == true {
+          new_card.cells[$source_index] = self.cells[$dest_index];
+          new_card.$source_dir = self.$dest_dir;
+        }
+      };
+    }
+
+    match flip {
+      FlipDir::Horizontal => {
+        assign_cell!((nw, 0), (ne, 2), true);
+        assign_cell!((w, 3), (e, 5), true);
+        assign_cell!((sw, 6), (se, 8), true);
+        assign_cell!((n, 1), (n, 1), false);
+        assign_cell!((s, 7), (s, 7), false);
+      }
+      FlipDir::Vertical => {
+        assign_cell!((nw, 0), (sw, 6), true);
+        assign_cell!((n, 1), (s, 7), true);
+        assign_cell!((ne, 2), (se, 8), true);
+        assign_cell!((w, 3), (w, 3), false);
+        assign_cell!((e, 5), (e, 5), false);
+      }
+    }
+
+    new_card.cells[4] = self.cells[4];
+
+    new_card
   }
 
   pub fn transpose(self, other: Self, selection: TransposeSelection) -> (Self, Self) {
-    todo!();
+    let is_transposed: fn(usize, usize) -> bool = match selection {
+      TransposeSelection::Column(TransposeIndex::First) => |x, _| x == 0,
+      TransposeSelection::Column(TransposeIndex::Second) => |x, _| x == 1,
+      TransposeSelection::Column(TransposeIndex::Third) => |x, _| x == 2,
+      TransposeSelection::Row(TransposeIndex::First) => |_, y| y == 0,
+      TransposeSelection::Row(TransposeIndex::Second) => |_, y| y == 1,
+      TransposeSelection::Row(TransposeIndex::Third) => |_, y| y == 2,
+    };
+
+    let mut first_card = Self::default();
+    let mut second_card = Self::default();
+
+    macro_rules! perform_transpose {
+      ( $dir:ident, $index:literal ) => {
+        if is_transposed($index % 3, $index / 3) {
+          first_card.cells[$index] = other.cells[$index];
+          second_card.cells[$index] = self.cells[$index];
+
+          first_card.$dir = other.$dir;
+          second_card.$dir = self.$dir;
+        } else {
+          first_card.cells[$index] = self.cells[$index];
+          second_card.cells[$index] = other.cells[$index];
+
+          first_card.$dir = self.$dir;
+          second_card.$dir = other.$dir;
+        }
+      };
+
+      ( $index:literal ) => {
+        if is_transposed($index % 3, $index / 3) {
+          first_card.cells[$index] = other.cells[$index];
+          second_card.cells[$index] = self.cells[$index];
+        } else {
+          first_card.cells[$index] = self.cells[$index];
+          second_card.cells[$index] = other.cells[$index];
+        }
+      };
+    }
+
+    perform_transpose!(nw, 0);
+    perform_transpose!(n, 1);
+    perform_transpose!(ne, 2);
+    perform_transpose!(w, 3);
+    perform_transpose!(4);
+    perform_transpose!(e, 5);
+    perform_transpose!(sw, 6);
+    perform_transpose!(s, 7);
+    perform_transpose!(se, 8);
+
+    (first_card, second_card)
   }
 
-  pub fn rotate(self, dir: RotationDir) {
-    todo!();
+  pub fn rotate(self, dir: RotationDir) -> Self {
+    let mut new_card = Self::default();
+
+    // Check for doors
+    macro_rules! assign_cell {
+      ( ($source_dir:ident, $source_index:literal), ($dest_dir:ident, $dest_index:literal) ) => {
+        new_card.cells[$dest_index] = self.cells[$source_index];
+        new_card.$dest_dir = self.$source_dir;
+      };
+    }
+
+    match dir {
+      RotationDir::Clockwise => {
+        assign_cell!((nw, 0), (n, 1));
+        assign_cell!((n, 1), (ne, 2));
+        assign_cell!((ne, 2), (e, 5));
+        assign_cell!((e, 5), (se, 8));
+        assign_cell!((se, 8), (s, 7));
+        assign_cell!((s, 7), (sw, 6));
+        assign_cell!((sw, 6), (w, 3));
+        assign_cell!((w, 3), (nw, 0));
+      }
+      RotationDir::CounterClockwise => {
+        assign_cell!((nw, 0), (w, 3));
+        assign_cell!((w, 3), (sw, 6));
+        assign_cell!((sw, 6), (s, 7));
+        assign_cell!((s, 7), (se, 8));
+        assign_cell!((se, 8), (e, 5));
+        assign_cell!((e, 5), (ne, 2));
+        assign_cell!((ne, 2), (n, 1));
+        assign_cell!((n, 1), (nw, 0));
+      }
+    }
+
+    new_card.cells[4] = self.cells[4];
+
+    new_card
   }
 }