text useful

src/main.rs

@@ -23,6 +23,7 @@ fn main() {
     let synthesizer = Synthesizer::new(&sound_font, &settings).unwrap();
 
     let mut syn = Syn::Real(synthesizer);
+    let mut syn = Syn::Text(std::collections::HashMap::new());
 
     // Play some notes (middle C, E, G). // 16 channels actually // 60=c 64=e 67=g //up to 128velocity though dont go below 50 tbh // 12 notes per octave
     syn.note_on(0, 64 + 12, 127);
@@ -49,24 +50,47 @@ fn main() {
 
 enum Syn {
     Real(Synthesizer),
+    Text(std::collections::HashMap<i32, std::collections::HashMap<i32, i32>>),
 }
 
 impl Syn {
     fn note_on(&mut self, a: i32, b: i32, c: i32) {
         match self {
             Syn::Real(syn) => syn.note_on(a, b, c),
+            Syn::Text(m) => {
+                eprintln!("note_on({:?}, {:?}, {:?})", a, b, c);
+                match m.get_mut(&a) {
+                    Some(m2) => { m2.insert(b, c); },
+                    None => {
+                        let mut m2 = std::collections::HashMap::new();
+                        m2.insert(b, c);
+                        m.insert(a, m2);
+                    },
+                };
+            },
         };
     }
 
     fn note_off(&mut self, a: i32, b: i32) {
         match self {
             Syn::Real(syn) => syn.note_off(a, b),
+            Syn::Text(m) => {
+                eprintln!("note_off({:?}, {:?})", a, b);
+                match m.get_mut(&a) {
+                    Some(m) => { m.remove(&b); },
+                    None => {},
+                };
+
+            },
         };
     }
 
     fn render(&mut self, a: &mut [f32], b: &mut [f32]) {
         match self {
             Syn::Real(syn) => syn.render(a, b),
+            Syn::Text(m) => {
+                eprintln!("render({:?})", m)
+            },
         };
     }
 }