diff --git a/game/aoi2d_entity.go b/game/aoi2d_entity.go
index debe2d8..1e6aede 100644
--- a/game/aoi2d_entity.go
+++ b/game/aoi2d_entity.go
@@ -4,8 +4,7 @@ package game
 //   - AOI 对象提供了 AOI 系统中常用的属性，诸如位置坐标和视野范围等
 type AOIEntity2D interface {
 	Actor
-	// GetPosition 获取对象位置
-	GetPosition() (x, y float64)
+	Position2D
 	// GetVision 获取视距
 	GetVision() float64
 }
diff --git a/game/position_2d.go b/game/position_2d.go
new file mode 100644
index 0000000..d48ad67
--- /dev/null
+++ b/game/position_2d.go
@@ -0,0 +1,7 @@
+package game
+
+// Position2D 2D位置接口定义
+type Position2D interface {
+	// GetPosition 获取对象位置
+	GetPosition() (x, y float64)
+}
diff --git a/game/position_3d.go b/game/position_3d.go
new file mode 100644
index 0000000..4a7fc20
--- /dev/null
+++ b/game/position_3d.go
@@ -0,0 +1,5 @@
+package game
+
+type Position3D interface {
+	GetPosition() (x, y, z float64)
+}