1 files changed, 17 insertions, 11 deletions

diff --git a/src/quad.rs b/src/quad.rs
index 583e5a9..bab0491 100644
--- a/src/quad.rs
+++ b/src/quad.rs
@@ -1,6 +1,8 @@
+use crate::ctx::Ctx;
+
 /// Represents the data present in a quad-tree node.
 /// May be the base-level repr, or a node with 4 children.
-pub enum Quad<A: Default, B> {
+pub enum Quad<A: Default, B: Copy> {
     /// Base cell in grid.
     /// May actually be a chunk of cells for performance.
     Base(A),
@@ -14,21 +16,18 @@ pub enum Quad<A: Default, B> {
 /// Has a depth denoting the number of nodes below it.
 /// Nodes should only be siblings of nodes with the same depth.
 /// Data stored inside a quadtree node, including children, are in `data`.
-pub struct Node<A: Default, B> {
-    depth: usize,
-    compr: B,
-    data:  Quad<A, B>,
+pub struct Node<A: Default, B: Copy> {
+    pub depth: usize,
+    pub compr: B,
+    pub data:  Quad<A, B>,
 }
 
-/// Represents a context with shared state.
-pub struct Ctx();
-
-impl<A: Default, B> Node<A, B> {
+impl<A: Default, B: Copy> Node<A, B> {
     /// Creates a new tree from a single base node
     pub fn new_base(base: A, ctx: &mut Ctx) -> Self {
         Node {
             depth: 0,
-            compr: ctx.compress(&base),
+            compr: ctx.compress_base(&base),
             data:  Quad::Base(base),
         }
     }
@@ -38,11 +37,18 @@ impl<A: Default, B> Node<A, B> {
         Self::new_base(Default::default(), ctx)
     }
 
+    pub fn new_cached(compr: B, depth: usize) -> Self {
+        Node {
+            depth,
+            compr,
+            data: Quad::Cached,
+        }
+    }
+
     /// Creates a new node double the size by centering the current node
     /// on a node double the size.
     pub fn pad_empty(self, ctx: &mut Ctx) -> Self {
         todo!()
     }
 
-    
 }