Initial card => tilemap

src/card.rs

@@ -14,6 +14,25 @@ pub enum Cell {
   Filled,
 }
 
+#[derive(Clone, Copy, Debug)]
+pub struct Walls {
+  pub north: bool,
+  pub east: bool,
+  pub south: bool,
+  pub west: bool,
+}
+
+impl Walls {
+  pub fn new(north: bool, east: bool, south: bool, west: bool) -> Self {
+    Self {
+      north,
+      east,
+      south,
+      west,
+    }
+  }
+}
+
 #[derive(Clone, Copy, Debug)]
 pub enum CutLine {
   VertLeft,
@@ -51,15 +70,15 @@ pub enum RotationDir {
 /// *or may not* be valid, yet.
 #[derive(Clone, Copy, Component, Debug, Default, PartialEq)]
 pub struct Card {
-  cells: [Cell; 9],
-  nw: bool,
-  n: bool,
-  ne: bool,
-  w: bool,
-  e: bool,
-  sw: bool,
-  s: bool,
-  se: bool,
+  pub cells: [Cell; 9],
+  pub nw: bool,
+  pub n: bool,
+  pub ne: bool,
+  pub w: bool,
+  pub e: bool,
+  pub sw: bool,
+  pub s: bool,
+  pub se: bool,
 }
 
 impl Card {