diff --git a/utils/geometry/circle.go b/utils/geometry/circle.go
index d121e01..bf31de4 100644
--- a/utils/geometry/circle.go
+++ b/utils/geometry/circle.go
@@ -37,7 +37,7 @@ func (slf Circle[V]) Centroid() Point[V] {
 
 // Overlap 与另一个圆是否发生重叠
 func (slf Circle[V]) Overlap(circle Circle[V]) bool {
-	return CalcDistanceWithPoint(slf.Centroid(), circle.Centroid())/2 > slf.radius
+	return slf.CentroidDistance(circle) < slf.Radius()+circle.Radius()
 }
 
 // Area 获取圆形面积
@@ -50,8 +50,13 @@ func (slf Circle[V]) Length() V {
 	return V(2 * math.Pi * float64(slf.Radius()))
 }
 
-// GenerateCircle 通过传入圆的半径和需要的点数量，生成一个圆
-func GenerateCircle[V generic.SignedNumber](radius V, points int) Circle[V] {
+// CentroidDistance 计算与另一个圆的质心距离
+func (slf Circle[V]) CentroidDistance(circle Circle[V]) V {
+	return CalcCircleCentroidDistance(slf, circle)
+}
+
+// NewCircle 通过传入圆的半径和需要的点数量，生成一个圆
+func NewCircle[V generic.SignedNumber](radius V, points int) Circle[V] {
 	angle := 2.0 * math.Pi / float64(points)
 	var shape = make(Shape[V], points)
 	for i := 0; i < points; i++ {
@@ -62,3 +67,8 @@ func GenerateCircle[V generic.SignedNumber](radius V, points int) Circle[V] {
 	}
 	return shape.ToCircle()
 }
+
+// CalcCircleCentroidDistance 计算两个圆质心距离
+func CalcCircleCentroidDistance[V generic.SignedNumber](circle1, circle2 Circle[V]) V {
+	return CalcDistanceWithPoint(circle1.Centroid(), circle1.Centroid())
+}
diff --git a/utils/geometry/circle_example_test.go b/utils/geometry/circle_example_test.go
index ecb9cef..bd4b082 100644
--- a/utils/geometry/circle_example_test.go
+++ b/utils/geometry/circle_example_test.go
@@ -5,8 +5,8 @@ import (
 	"github.com/kercylan98/minotaur/utils/geometry"
 )
 
-func ExampleGenerateCircle() {
-	fmt.Println(geometry.GenerateCircle[float64](7, 12))
+func ExampleNewCircle() {
+	fmt.Println(geometry.NewCircle[float64](7, 12))
 
 	// Output:
 	// [[0 0] [0 0] [0 0] [0 0] [0 0] [0 0] [0 0] [0 0] [0 0] [0 0] [0 0] [0 0] [7 0] [6.062177826491071 3.4999999999999996] [3.500000000000001 6.06217782649107] [4.28626379701573e-16 7] [-3.4999999999999982 6.062177826491071] [-6.0621778264910695 3.500000000000002] [-7 8.57252759403146e-16] [-6.062177826491071 -3.4999999999999982] [-3.500000000000003 -6.062177826491069] [-1.285879139104719e-15 -7] [3.499999999999995 -6.062177826491074] [6.062177826491069 -3.500000000000003]]