diff --git a/utils/g2d/g2d_test.go b/utils/g2d/g2d_test.go
deleted file mode 100644
index 2da8e5e..0000000
--- a/utils/g2d/g2d_test.go
+++ /dev/null
@@ -1,17 +0,0 @@
-package g2d
-
-import (
-	"fmt"
-	"github.com/kercylan98/minotaur/utils/geometry"
-	"testing"
-)
-
-func TestPositionIntToXY(t *testing.T) {
-	pos := geometry.CoordinateToPos(9, 7, 8)
-	fmt.Println(pos)
-	fmt.Println(geometry.PosToCoordinate(9, pos))
-
-	fmt.Println(geometry.CoordinateToPos(65000, 61411, 158266))
-	fmt.Println(geometry.PosToCoordinate(65000, 10287351411))
-
-}
diff --git a/utils/g2d/shape/point.go b/utils/g2d/shape/point.go
deleted file mode 100644
index 0604789..0000000
--- a/utils/g2d/shape/point.go
+++ /dev/null
@@ -1,31 +0,0 @@
-package shape
-
-func NewPoint(x, y int) Point {
-	return Point{x, y}
-}
-
-func NewPointWithArray(arr [2]int) Point {
-	return Point{arr[0], arr[1]}
-}
-
-func NewPointWithArrays(arrays ...[2]int) []Point {
-	var points = make([]Point, len(arrays), len(arrays))
-	for i, arr := range arrays {
-		points[i] = NewPointWithArray(arr)
-	}
-	return points
-}
-
-type Point [2]int
-
-func (slf Point) GetX() int {
-	return slf[0]
-}
-
-func (slf Point) GetY() int {
-	return slf[1]
-}
-
-func (slf Point) GetXY() (int, int) {
-	return slf[0], slf[1]
-}
diff --git a/utils/g2d/shape/shape.go b/utils/g2d/shape/shape.go
deleted file mode 100644
index 788ecc3..0000000
--- a/utils/g2d/shape/shape.go
+++ /dev/null
@@ -1,86 +0,0 @@
-package shape
-
-func NewShape[Mark any](mark Mark, points ...Point) *Shape[Mark] {
-	shape := &Shape[Mark]{
-		maxX:   -1,
-		maxY:   -1,
-		points: map[int]map[int]Point{},
-		mark:   mark,
-	}
-	shape.AddPoints(points...)
-	return shape
-}
-
-// Shape 2D形状定义
-type Shape[Mark any] struct {
-	maxX   int
-	maxY   int
-	points map[int]map[int]Point
-	mark   Mark
-}
-
-func (slf *Shape[Mark]) AddPoints(points ...Point) {
-	for _, point := range points {
-		slf.AddPoint(point)
-	}
-}
-
-func (slf *Shape[Mark]) AddPoint(point Point) {
-	x, y := point.GetXY()
-	if x < 0 || y < 0 {
-		panic("only positive integers are allowed for shape point positions")
-	}
-	if x > slf.maxX {
-		slf.maxX = x
-	}
-	if y > slf.maxY {
-		slf.maxY = y
-	}
-	ys, exist := slf.points[x]
-	if !exist {
-		ys = map[int]Point{}
-		slf.points[x] = ys
-	}
-	ys[y] = point
-}
-
-func (slf *Shape[Mark]) GetPoints() []Point {
-	var points []Point
-	for _, m := range slf.points {
-		for _, point := range m {
-			points = append(points, point)
-		}
-	}
-	return points
-}
-
-func (slf *Shape[Mark]) GetMaxX() int {
-	return slf.maxX
-}
-
-func (slf *Shape[Mark]) GetMaxY() int {
-	return slf.maxY
-}
-
-func (slf *Shape[Mark]) GetMaxXY() (int, int) {
-	return slf.maxX, slf.maxY
-}
-
-func (slf *Shape[Mark]) GetMark() Mark {
-	return slf.mark
-}
-
-func (slf *Shape[Mark]) String() string {
-	var str string
-	for y := 0; y <= slf.maxY; y++ {
-		for x := 0; x <= slf.maxX; x++ {
-			if _, exist := slf.points[x][y]; exist {
-				str += "1"
-			} else {
-				str += "0"
-			}
-		}
-		str += "\r\n"
-	}
-	return str
-}
diff --git a/utils/g2d/shape_test.go b/utils/g2d/shape_test.go
deleted file mode 100644
index ce3a0bf..0000000
--- a/utils/g2d/shape_test.go
+++ /dev/null
@@ -1,30 +0,0 @@
-package g2d
-
-import (
-	"fmt"
-	"testing"
-)
-
-func TestGetShapeCoverageArea(t *testing.T) {
-	for _, xy := range GetExpressibleRectangleBySize(2, 3, 2, 2) {
-		for y := 0; y < xy[1]+1; y++ {
-			for x := 0; x < xy[0]+1; x++ {
-				fmt.Print("0", " ")
-			}
-			fmt.Println()
-		}
-		fmt.Println()
-	}
-}
-
-func TestGetExpressibleRectangleBySize(t *testing.T) {
-	for _, xy := range GetExpressibleRectangleBySize(3, 3, 2, 2) {
-		for y := 0; y < xy[1]+1; y++ {
-			for x := 0; x < xy[0]+1; x++ {
-				fmt.Print("0", " ")
-			}
-			fmt.Println()
-		}
-		fmt.Println()
-	}
-}