Big refactor out of Aura LED data structs

aura/examples/per-key-effect-2.rs

@@ -0,0 +1,39 @@
+use rog_aura::{AuraDbusWriter, Key, KeyColourArray};
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let writer = AuraDbusWriter::new()?;
+
+    let mut per_key_led = Vec::new();
+    let mut key_colours = KeyColourArray::new();
+    per_key_led.push(key_colours.clone());
+
+    for _ in 0..49 {
+        *key_colours.key(Key::ROG).0 += 3;
+        *key_colours.key(Key::L).0 += 3;
+        *key_colours.key(Key::I).0 += 3;
+        *key_colours.key(Key::N).0 += 3;
+        *key_colours.key(Key::U).0 += 3;
+        *key_colours.key(Key::X).0 += 3;
+        per_key_led.push(key_colours.clone());
+    }
+
+    for _ in 0..49 {
+        *key_colours.key(Key::ROG).0 -= 3;
+        *key_colours.key(Key::L).0 -= 3;
+        *key_colours.key(Key::I).0 -= 3;
+        *key_colours.key(Key::N).0 -= 3;
+        *key_colours.key(Key::U).0 -= 3;
+        *key_colours.key(Key::X).0 -= 3;
+        per_key_led.push(key_colours.clone());
+    }
+
+    writer.init_effect()?;
+    loop {
+        let now = std::time::Instant::now();
+        for group in &per_key_led {
+            writer.write_colour_block(group)?;
+        }
+        dbg!(std::time::Instant::now().duration_since(now).as_millis());
+        //return Ok(());
+    }
+}