Завершить инженерный кандидат Stage 5

app/src/main/java/com/projectsacrifice/game/AudioCueSequencer.java

@@ -0,0 +1,24 @@
+package com.projectsacrifice.game;
+
+import java.util.Arrays;
+
+/** Small deterministic variant chooser with independent no-repeat history per cue. */
+public final class AudioCueSequencer {
+    private final int[] previous = new int[AudioCue.values().length];
+    private long state;
+
+    public AudioCueSequencer(long seed) {
+        Arrays.fill(previous, -1);
+        state = seed == 0L ? 0x6d2b79f5L : seed;
+    }
+
+    public int nextVariant(AudioCue cue) {
+        if (cue == null || cue.variants() <= 1) return 0;
+        state = state * 6364136223846793005L + 1442695040888963407L;
+        int candidate = (int) Math.floorMod(state >>> 24, cue.variants());
+        int index = cue.ordinal();
+        if (candidate == previous[index]) candidate = (candidate + 1) % cue.variants();
+        previous[index] = candidate;
+        return candidate;
+    }
+}