#267 feat : DistanceUtil 생성 haversine 공통 사용

Aos/presentation/src/main/java/com/avengers/presentation/util/DistanceUtil.kt

@@ -0,0 +1,22 @@
+package com.avengers.presentation.util
+
+import kotlin.math.atan2
+import kotlin.math.cos
+import kotlin.math.sin
+import kotlin.math.sqrt
+
+object DistanceUtil {
+
+    fun haversineDistance(lat1: Double, lon1: Double, lat2: Double, lon2: Double): Double {
+        val radius = 6371000 // 지구 반지름(미터 단위)
+        val distanceLatitude = Math.toRadians(lat2 - lat1)
+        val distanceLongitude = Math.toRadians(lon2 - lon1)
+
+        val a = (sin(distanceLatitude / 2) * sin(distanceLatitude / 2)) +
+                (cos(Math.toRadians(lat1)) * cos(Math.toRadians(lat2)) *
+                        sin(distanceLongitude / 2) * sin(distanceLongitude / 2))
+
+        val c = 2 * atan2(sqrt(a), sqrt(1 - a))
+        return radius * c
+    }
+}