Handler in node

src/node/mod.rs

@@ -1,37 +1,54 @@
 use crate::node::node_modifier::NodeModifier;
+use handler::*;
 
+mod handler;
 mod node_modifier;
 
 pub struct Node {
     children: Vec<Node>,
-    function: fn(Vec<f64>) -> f64,
+    handler: Box<dyn NodeHandler>,
 }
 
 impl Node {
-    pub fn new(children: Option<Vec<Node>>, function: Option<fn(Vec<f64>) -> f64>) -> Self {
+    pub fn new<T>(children: Option<Vec<Node>>, handler: T) -> Self
+    where
+        T: NodeHandler + 'static,
+    {
         Self {
             children: children.unwrap_or(vec![]),
-            function: function.unwrap_or(|_| 0f64),
-        }
-    }
-    pub fn empty() -> Self {
-        Self {
-            children: vec![],
-            function: |_| 0f64,
+            handler: Box::new(handler),
         }
     }
     pub fn get_value(&self) -> f64 {
         if self.children.len() == 0 {
-            return (self.function)(vec![0f64]);
+            return self.handler.run(vec![0f64]);
         }
         let mut inputs: Vec<f64> = vec![];
         for node in &self.children {
             inputs.push(node.get_value());
         }
 
-        return (self.function)(inputs);
+        return self.handler.run(inputs);
     }
     pub fn modify_tree<'a>(&'a mut self) -> NodeModifier<'a> {
         NodeModifier::from_random(self)
     }
+    pub fn number(n: f64) -> Node {
+        Node {
+            children: vec![],
+            handler: Box::new(NodeNumber::new(Some(n))),
+        }
+    }
+    pub fn function(func: fn(Vec<f64>) -> f64) -> Node {
+        Node {
+            children: vec![],
+            handler: Box::new(NodeFunction::new(func)),
+        }
+    }
+    pub fn variable(getter: fn() -> f64) -> Node {
+        Node {
+            children: vec![],
+            handler: Box::new(NodeVariable::new(getter)),
+        }
+    }
 }