Add discreet anticheat mechanism for the games

src/app/icare/icarus-game.tsx

@@ -271,23 +271,22 @@ function drawSpeedLines(ctx: CanvasRenderingContext2D, centerX: number, centerY:
   ctx.restore();
 }
 
+export type IcarusRunTelemetry = {
+  v: 1;
+  duration_ms: number;
+  actions: number;
+};
+
 export function IcarusGame({
-  onStart,
   onFinish,
 }: {
-  onStart: () => void;
-  onFinish: (score: number) => void;
+  onFinish: (score: number, run: IcarusRunTelemetry) => void;
 }) {
   const canvasRef = useRef<HTMLCanvasElement | null>(null);
   const containerRef = useRef<HTMLDivElement | null>(null);
   const [status, setStatus] = useState<Status>("idle");
   const [score, setScore] = useState(0);
 
-  const onStartRef = useRef(onStart);
-  useEffect(() => {
-    onStartRef.current = onStart;
-  }, [onStart]);
-
   const onFinishRef = useRef(onFinish);
   useEffect(() => {
     onFinishRef.current = onFinish;
@@ -306,6 +305,8 @@ export function IcarusGame({
   const boostDashAtRef = useRef<number | null>(null);
   const shatterEffectsRef = useRef<ShatterEffect[]>([]);
   const nextEntityIdRef = useRef(0);
+  const runStartedAtRef = useRef<number | null>(null);
+  const actionCountRef = useRef(0);
 
   const resetGame = useCallback(() => {
     icarusRef.current = createInitialIcarus();
@@ -320,19 +321,28 @@ export function IcarusGame({
     boostColumnsRemainingRef.current = 0;
     boostDashAtRef.current = null;
     shatterEffectsRef.current = [];
+    runStartedAtRef.current = null;
+    actionCountRef.current = 0;
     setStatus("idle");
     setScore(0);
   }, []);
 
   const requestFlap = useCallback(() => {
-    flapRequestedRef.current = true;
+    if (statusRef.current === "dead") {
+      resetGame();
+      return;
+    }
+
     if (statusRef.current === "idle") {
+      runStartedAtRef.current = Date.now();
+      actionCountRef.current = 1;
       statusRef.current = "flying";
       setStatus("flying");
-      onStartRef.current();
-    } else if (statusRef.current === "dead") {
-      resetGame();
+    } else {
+      actionCountRef.current += 1;
     }
+
+    flapRequestedRef.current = true;
   }, [resetGame]);
 
   // Sur ordinateur (pas de tap tactile) : la barre d'espace fait la même
@@ -383,6 +393,17 @@ export function IcarusGame({
     let lastFrame: number | null = null;
     let accumulator = 0;
 
+    function finishRun() {
+      statusRef.current = "dead";
+      setStatus("dead");
+      const startedAt = runStartedAtRef.current;
+      onFinishRef.current(scoreRef.current, {
+        v: 1,
+        duration_ms: startedAt === null ? 0 : Math.max(0, Date.now() - startedAt),
+        actions: actionCountRef.current,
+      });
+    }
+
     function frame(now: number) {
       if (lastFrame === null) lastFrame = now;
       const frameDt = Math.min(now - lastFrame, MAX_FRAME_DT_MS);
@@ -505,17 +526,13 @@ export function IcarusGame({
               columnsRef.current = columnsRef.current.filter((c) => !broken.includes(c));
               setScore(scoreRef.current);
             } else {
-              statusRef.current = "dead";
-              setStatus("dead");
-              onFinishRef.current(scoreRef.current);
+              finishRun();
               break;
             }
           }
 
           if (boostColumnsRemainingRef.current === 0 && hasHitGround(icarusRef.current)) {
-            statusRef.current = "dead";
-            setStatus("dead");
-            onFinishRef.current(scoreRef.current);
+            finishRun();
             break;
           }