update map gen

Assets/Plugins/Native/BackroomsNoise/BackroomsNoise.cpp

@@ -0,0 +1,36 @@
+#include "FastNoiseLite.h"
+#include <vector>
+
+#define EXPORT_API __declspec(dllexport)
+
+extern "C" {
+    EXPORT_API void* CreateNoiseGenerator(int seed, float frequency, int noiseType) {
+        FastNoiseLite* noise = new FastNoiseLite(seed);
+        noise->SetFrequency(frequency);
+        noise->SetNoiseType((FastNoiseLite::NoiseType)noiseType);
+        return (void*)noise;
+    }
+
+    EXPORT_API float GetNoiseValue(void* handle, float x, float z) {
+        if (!handle) return 0.0f;
+        FastNoiseLite* noise = (FastNoiseLite*)handle;
+        return noise->GetNoise(x, z);
+    }
+
+    EXPORT_API void GetNoiseBuffer(void* handle, float startX, float startZ, int width, int depth, float* buffer) {
+        if (!handle || !buffer) return;
+        FastNoiseLite* noise = (FastNoiseLite*)handle;
+        
+        for (int z = 0; z < depth; z++) {
+            for (int x = 0; x < width; x++) {
+                buffer[z * width + x] = noise->GetNoise(startX + x, startZ + z);
+            }
+        }
+    }
+
+    EXPORT_API void DestroyNoiseGenerator(void* handle) {
+        if (handle) {
+            delete (FastNoiseLite*)handle;
+        }
+    }
+}