v1.2版本改为通过xbox系列手柄进行遥控,并增加智能模式和手动模式

v1.2/Shibo-main-TOMMY/lib/FastLED/src/fl/noise_woryley.cpp

@@ -0,0 +1,68 @@
+#include "noise_woryley.h"
+
+namespace fl {
+namespace {
+
+constexpr i32 Q15_ONE = 32768; // 1.0 in Q15
+// constexpr i32 Q15_HALF = Q15_ONE / 2;
+
+// Helper: multiply two Q15 numbers (result in Q15)
+// i32 q15_mul(i32 a, i32 b) {
+//     return (i32)(((int64_t)a * b) >> 15);
+// }
+
+// Helper: absolute difference
+i32 q15_abs(i32 a) { return a < 0 ? -a : a; }
+
+// Pseudo-random hash based on grid coordinates
+u16 hash(i32 x, i32 y) {
+    u32 n = (u32)(x * 374761393 + y * 668265263);
+    n = (n ^ (n >> 13)) * 1274126177;
+    return (u16)((n ^ (n >> 16)) & 0xFFFF);
+}
+
+// Get fractional feature point inside a grid cell
+void feature_point(i32 gx, i32 gy, i32 &fx, i32 &fy) {
+    u16 h = hash(gx, gy);
+    fx = (h & 0xFF) * 128; // scale to Q15 (0–32767)
+    fy = ((h >> 8) & 0xFF) * 128;
+}
+} // namespace
+
+// Compute 2D Worley noise at (x, y) in Q15
+i32 worley_noise_2d_q15(i32 x, i32 y) {
+    i32 cell_x = x >> 15;
+    i32 cell_y = y >> 15;
+
+    i32 min_dist = INT32_MAX;
+
+    // Check surrounding 9 cells
+    for (int dy = -1; dy <= 1; ++dy) {
+        for (int dx = -1; dx <= 1; ++dx) {
+            i32 gx = cell_x + dx;
+            i32 gy = cell_y + dy;
+
+            i32 fx, fy;
+            feature_point(gx, gy, fx, fy);
+
+            i32 feature_x = (gx << 15) + fx;
+            i32 feature_y = (gy << 15) + fy;
+
+            i32 dx_q15 = x - feature_x;
+            i32 dy_q15 = y - feature_y;
+
+            // Approximate distance using Manhattan (faster) or Euclidean
+            // (costlier)
+            i32 dist =
+                q15_abs(dx_q15) + q15_abs(dy_q15); // Manhattan distance
+
+            if (dist < min_dist)
+                min_dist = dist;
+        }
+    }
+
+    // Normalize: maximum possible distance is roughly 2*Q15_ONE
+    return (min_dist << 15) / (2 * Q15_ONE);
+}
+
+} // namespace fl