1 files changed, 31 insertions, 0 deletions
diff --git a/core/scoring/proximity.go b/core/scoring/proximity.go
new file mode 100644
index 0000000..f765aa7
--- /dev/null
+++ b/core/scoring/proximity.go
@@ -0,0 +1,31 @@
+package scoring
+
+import "math"
+
+func CalculateProximity(pos1, pos2 []int) float64 {
+	var score float64
+	i, j := 0, 0
+
+	for i < len(pos1) && j < len(pos2) {
+		p1 := pos1[i]
+		p2 := pos2[j]
+
+		dist := math.Abs(float64(p1 - p2))
+
+		if dist == 1 {
+			score += 15.0
+		} else if dist <= 5 {
+			score += 5.0
+		} else if dist <= 15 {
+			score += 1.0
+		}
+
+		if p1 < p2 {
+			i++
+		} else {
+			j++
+		}
+	}
+
+	return score
+}