midi example is sufficient

Author: catilac

Cargo.lock

@@ -49,6 +49,7 @@ web-sys = { version = "0.3", features = ["Window"] }
 
 [dev-dependencies]
 glfw = "0.60.0"
+rand = "0.10.0"
 
 [target.'cfg(target_os = "linux")'.dev-dependencies]
 glfw = { version = "0.60.0", features = ["wayland"] }

Cargo.toml

@@ -1281,11 +1281,11 @@ pub fn midi_connect(port: usize) -> error::Result<()> {
 }
 
 #[cfg(not(target_arch = "wasm32"))]
-pub fn midi_play_notes(note: u8) -> error::Result<()> {
+pub fn midi_play_notes(note: u8, duration: u64) -> error::Result<()> {
     app_mut(|app| {
         let world = app.world_mut();
         world
-            .run_system_cached_with(midi::play_notes, note)
+            .run_system_cached_with(midi::play_notes, (note, duration))
             .unwrap()
     })
 }

crates/processing_render/src/lib.rs

@@ -33,10 +33,12 @@ pub fn refresh_ports(output: Res<MidiOutput>) -> Result<()> {
     Ok(())
 }
 
-pub fn play_notes(In(note): In<u8>, output: Res<MidiOutput>) -> Result<()> {
+pub fn play_notes(In((note, duration)): In<(u8, u64)>, output: Res<MidiOutput>) -> Result<()> {
     output.send([0b1001_0000, note, 127].into()); // Note on, channel 1, max velocity
 
-    // output.send([0b1000_0000, note, 127].into()); // Note on, channel 1, max velocity
+    std::thread::sleep(std::time::Duration::from_millis(duration));
+
+    output.send([0b1000_0000, note, 127].into()); // Note on, channel 1, max velocity
 
     Ok(())
 }

crates/processing_render/src/midi.rs

@@ -4,6 +4,8 @@ use glfw::GlfwContext;
 use processing::prelude::*;
 use processing_render::render::command::DrawCommand;
 
+use rand::prelude::*;
+
 fn main() {
     match sketch() {
         Ok(_) => {
@@ -28,7 +30,8 @@ fn sketch() -> error::Result<()> {
 
     midi_refresh_ports()?;
     midi_connect(0)?;
-    midi_play_notes(60)?;
+
+    let mut rng = rand::rng();
 
     while glfw_ctx.poll_events() {
         graphics_begin_draw(graphics)?;
@@ -46,7 +49,10 @@ fn sketch() -> error::Result<()> {
 
         graphics_end_draw(graphics)?;
 
-        midi_play_notes(60)?;
+        let note = rng.random_range(57..68);
+        let note_duration = rng.random_range(25..250);
+        midi_play_notes(note, note_duration)?;
     }
+
     Ok(())
 }