Melody strategy

LuckyStrategy.h

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+#ifndef LUCKY_STRATEGY_H
+#define LUCKY_STRATEGY_H
+
+#include "MelodyStrategy.h"
+#include <Arduino.h>
+
+class LuckyStrategy : public MelodyStrategy {
+public:
+    void generate(Step* sequence, int numSteps, int* scaleNotes, int numScaleNotes, int seed) override {
+        randomSeed(seed);
+        if (numScaleNotes == 0) return;
+
+        for (int i = 0; i < numSteps; i++) {
+            int octave = random(3) + 3; // 3, 4, 5 (Base is 4)
+            sequence[i].note = (random(100) < 50) ? (12 * octave + scaleNotes[random(numScaleNotes)]) : -1;
+            sequence[i].accent = (random(100) < 30);
+            sequence[i].tie = (random(100) < 20);
+        }
+        randomSeed(micros());
+    }
+
+    void mutate(Step* sequence, int numSteps, int* scaleNotes, int numScaleNotes) override {
+        // Mutate 1 or 2 steps
+        int count = random(1, 3);
+        for (int i = 0; i < count; i++) {
+            int s = random(numSteps);
+            if (sequence[s].note != -1) {
+                int r = random(100);
+                if (r < 30) sequence[s].accent = !sequence[s].accent;
+                else if (r < 60) sequence[s].tie = !sequence[s].tie;
+                else if (r < 80) sequence[s].note += 12; // Up octave
+                else sequence[s].note -= 12; // Down octave
+            }
+        }
+    }
+
+    const char* getName() override {
+        return "Lucky";
+    }
+};
+
+#endif