[Precogs AI] Auto-Fix: 1 vulnerabilities in 1 files

cpp-programming/Project_Snake_Game/snake-game.cpp

@@ -0,0 +1,61 @@
+
+void Logic() {
+	const int MAX_TAIL = 100;
+	// PRECOGS_FIX: clamp nt to valid bounds to prevent out-of-bounds access
+	if (nt < 0) nt = 0;
+	if (nt > MAX_TAIL) nt = MAX_TAIL;
+
+	int prevx = x;
+	int prevy = y;
+	int prev2x, prev2y;
+	tx[0] = x;
+	ty[0] = y;
+	for (int i = 1; i < nt; i++) {
+		prev2x = tx[i];
+		prev2y = ty[i];
+		tx[i] = prevx;
+		ty[i] = prevy;
+		prevx = prev2x;
+		prevy = prev2y;
+	}
+
+
+	switch (dir)
+	{
+	case UP:
+		y--;
+		break;
+	case DOWN:
+		y++;
+		break;
+	case LEFT:
+		x--;
+		break;
+	case RIGHT:
+		x++;
+		break;
+
+	default:
+		break;
+	}
+	if (x >= width) x = 0; else if (x < 0) x = width - 1;
+	if (y >= height) y = 0; else if (y < 0) y = height - 1;
+
+	// Use bounded tailCount for collision checks
+	int tailCount = nt;
+	if (tailCount < 0) tailCount = 0;
+	if (tailCount > MAX_TAIL) tailCount = MAX_TAIL;
+	for (int i = 0; i < tailCount; i++) {
+		if (tx[i] == x && ty[i] == y) {
+			lostgame();
+		}
+
+	}
+
+	if (x == fx && y == fy) {
+		score += 1;
+		if (nt < MAX_TAIL) nt++; // PRECOGS_FIX: only increase nt if capacity allows
+		fx = rand() % width;
+		fy = rand() % height;
+	}
+}