diff --git a/a8/vec2.cc b/a8/vec2.cc
index 00e1075..bf27a79 100644
--- a/a8/vec2.cc
+++ b/a8/vec2.cc
@@ -98,6 +98,12 @@ namespace a8
         return v.Norm();
     }
 
+    float Vec2::ManhattanDistance(const Vec2& b)
+    {
+        float distance = std::fabs(x - b.x) + std::fabs(y - b.y);
+        return distance;
+    }
+
     Vec2 Vec2::Perp()
     {
         return Vec2(y, -x);
diff --git a/a8/vec2.h b/a8/vec2.h
index d6141d4..a8bd245 100644
--- a/a8/vec2.h
+++ b/a8/vec2.h
@@ -16,6 +16,7 @@ namespace a8
         float CalcAngleEx(const Vec2& b);
         static Vec2 FromAngle(float angle);
         float Distance(const Vec2& b);
+        float ManhattanDistance(const Vec2& b);
 
         bool operator == (const Vec2& b) const;
         Vec2 operator + (const Vec2& b) const;