Change speed scale, Implement reset

rust_native_module/src/output/fixtures.rs

@@ -23,7 +23,9 @@ pub struct MovingHead {
     pub tilt: f64, // -pi/2 to pi/2
     pub brightness: Brightness,
     pub rgbw: (u8, u8, u8, u8), // RGBW
-    pub speed: u8,              // reversed
+    pub speed: f64,             // 0 to 1, mapping to (255 to 0)
+
+    pub reset: bool,
 }
 
 pub trait DMXFixture {
@@ -32,6 +34,8 @@ pub trait DMXFixture {
 
 impl DMXFixture for MovingHead {
     fn render(&self, dst: &mut [u8]) {
+        // TODO use pan_fine and tilt_fine for more accuracy
+
         let pan = rescale(self.pan, (-1.5 * PI, 1.5 * PI), (255.0, 0.0)) as u8;
         let pan_fine = 0;
 
@@ -47,10 +51,14 @@ impl DMXFixture for MovingHead {
 
         let (r, g, b, w) = self.rgbw;
 
+        let speed = rescale(self.speed, (0.0, 1.0), (255.0, 0.0)) as u8;
+
+        let reset = if self.reset { 175 } else { 0 };
+
         let offset = self.start_address - 1;
 
         let channels = [
-            pan, pan_fine, tilt, tilt_fine, self.speed, dimmer, r, g, b, w, 0, 0, 0, 0,
+            pan, pan_fine, tilt, tilt_fine, speed, dimmer, r, g, b, w, 0, 0, 0, reset,
         ];
 
         dst[offset..offset + channels.len()].copy_from_slice(&channels);

rust_native_module/src/output/mod.rs

@@ -139,7 +139,12 @@ fn set_output(mut cx: FunctionContext) -> JsResult<JsObject> {
             speed: head
                 .get(&mut cx, "speed")?
                 .downcast_or_throw::<JsNumber, _>(&mut cx)?
-                .value(&mut cx) as u8,
+                .value(&mut cx),
+
+            reset: head
+                .get(&mut cx, "reset")?
+                .downcast_or_throw::<JsBoolean, _>(&mut cx)?
+                .value(&mut cx),
         })
     }