Added dynamic simulation.

gemla/src/bracket/mod.rs

@@ -1,12 +1,15 @@
 mod tree;
-
+mod state;
-use uuid::Uuid;
 
 fn build_tree(h: u32) -> Option<Box<tree::Tree>> {
     let mut result: Option<Box<tree::Tree>> = None;
 
     if h != 0 {
-        result = Some(tree::concat_trees(Uuid::new_v4(), build_tree(h - 1), build_tree(h - 1)));
+        result = Some(tree::concat_trees(state::create(), build_tree(h - 1), build_tree(h - 1)));
+        match &result {
+            Some(r) => (*r).run_simulation(),
+            _ => ()
+        }
     }
 
     result
@@ -19,8 +22,8 @@ pub fn run_bracket() {
     loop {
         println!("=========================================");
         println!("Running bracket...");
-        println!("{}", tree);
         height += 1;
-        tree = *tree::concat_trees(Uuid::new_v4(), Some(Box::new(tree)), build_tree(height));
+        tree = *tree::concat_trees(state::create(), Some(Box::new(tree)), build_tree(height));
+        tree.run_simulation();
     }
 }

gemla/src/bracket/state.rs

@@ -0,0 +1,18 @@
+use uuid::Uuid;
+use std::fmt;
+
+pub struct State {
+    id: Uuid
+}
+
+impl fmt::Display for State {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}", self.id)
+    }
+}
+
+pub fn create() -> State {
+    State {
+        id: Uuid::new_v4()
+    }
+}

gemla/src/bracket/tree.rs

@@ -1,15 +1,15 @@
 use std::fmt;
-use uuid::Uuid;
+use super::state;
 
 pub struct Tree {
-    id: Uuid,
+    state: state::State,
     left: Option<Box<Tree>>,
     right: Option<Box<Tree>>
 }
 
-pub fn concat_trees(v: Uuid, l: Option<Box<Tree>>, r: Option<Box<Tree>>) -> Box<Tree> {
+pub fn concat_trees(s: state::State, l: Option<Box<Tree>>, r: Option<Box<Tree>>) -> Box<Tree> {
     Box::new(Tree {
-        id: v,
+        state: s,
         left: l,
         right: r
     })
@@ -24,6 +24,21 @@ impl fmt::Display for Tree {
             }
         };
 
-        write!(f, "({} :{}|{})", self.id, node_str(&self.left), node_str(&self.right))
+        write!(f, "({} :{}|{})", self.state, node_str(&self.left), node_str(&self.right))
+    }
+}
+
+fn fmt_node(t: &Option<Box<Tree>>) -> String {
+    match t {
+        Some(n) => format!("{}", (*n).state),
+        _ => String::from("_")
+    }
+}
+
+impl Tree {
+    pub fn run_simulation(&self) {
+        println!("================================");
+        println!("Running simulation for node: {}", self.state);
+        println!("With children {} and {}", fmt_node(&self.left), fmt_node(&self.right));
     }
 }