diff --git a/packages-user/data-base/src/map/dynamicTile.ts b/packages-user/data-base/src/map/dynamicTile.ts
index 625b4df..fa9cd5f 100644
--- a/packages-user/data-base/src/map/dynamicTile.ts
+++ b/packages-user/data-base/src/map/dynamicTile.ts
@@ -1,4 +1,3 @@
-import { isNil } from 'lodash-es';
 import {
     FaceDirection,
     IMoverController,
@@ -76,12 +75,7 @@ export class DynamicTile
     }
 
     getCurrentFaceDirection(): FaceDirection {
-        const curr = this.layer.faceBinder.getFaceDirection(this.tileNum);
-        if (isNil(curr)) {
-            return FaceDirection.Unknown;
-        } else {
-            return curr;
-        }
+        return this.layer.faceBinder.getFaceDirection(this.tileNum);
     }
 
     @shouldReplay('Transfering dynamic tile to static should be replayed.')
diff --git a/packages-user/data-base/src/map/mapLayer.ts b/packages-user/data-base/src/map/mapLayer.ts
index f32a33a..86e5342 100644
--- a/packages-user/data-base/src/map/mapLayer.ts
+++ b/packages-user/data-base/src/map/mapLayer.ts
@@ -15,7 +15,6 @@ import {
 } from './types';
 import { Hookable, HookController, ITileLocator, logger } from '@motajs/common';
 import {
-    degradeFace,
     FaceDirection,
     IDataCommon,
     IRoleFaceBinder,
@@ -525,14 +524,7 @@ export class MapLayer
 
     @shouldReplay('Setting map layer  block direction should be replayed.')
     setDynamicDirection(tile: IDynamicTile, direction: FaceDirection): number {
-        const numBefore = tile.num();
-        tile.setFaceDirection(direction);
-        if (tile.num() !== numBefore) return tile.num();
-        const degraded = degradeFace(direction);
-        if (degraded !== direction) {
-            tile.setFaceDirection(degraded);
-        }
-        return tile.num();
+        return tile.setFaceDirection(direction);
     }
 
     @shouldReplay('Updating dynamic tile position should be replayed.')
diff --git a/packages-user/data-base/src/map/mover.ts b/packages-user/data-base/src/map/mover.ts
index bb3e49b..2c79c98 100644
--- a/packages-user/data-base/src/map/mover.ts
+++ b/packages-user/data-base/src/map/mover.ts
@@ -1,6 +1,6 @@
 import { ITileLocator, logger } from '@motajs/common';
 import {
-    getFaceMovement,
+    FaceGroup,
     ObjectMover,
     ObjectMoveStep,
     ObjectMoveType,
@@ -46,16 +46,21 @@ export class DynamicTileMover extends ObjectMover<IDynamicTile> {
             x: tile.x,
             y: tile.y
         };
+        const handler = tile.state.faceManager.get(FaceGroup.Dir8);
+        if (!handler) {
+            logger.warn(192);
+            return Promise.resolve({ x: tile.x, y: tile.y });
+        }
         switch (step.type) {
             case ObjectMoveType.Dir: {
-                const { x, y } = getFaceMovement(step.move);
+                const { x, y } = handler.movement(step.move);
                 tile.setFaceDirection(step.move);
                 locator.x += x;
                 locator.y += y;
                 break;
             }
             case ObjectMoveType.DirFace: {
-                const { x, y } = getFaceMovement(step.move);
+                const { x, y } = handler.movement(step.move);
                 tile.setFaceDirection(step.face);
                 locator.x += x;
                 locator.y += y;
@@ -66,7 +71,7 @@ export class DynamicTileMover extends ObjectMover<IDynamicTile> {
                 break;
             }
             case ObjectMoveType.Special: {
-                const { x, y } = getFaceMovement(this.moveDirection);
+                const { x, y } = handler.movement(this.moveDirection);
                 tile.setFaceDirection(this.faceDirection);
                 locator.x += x;
                 locator.y += y;
diff --git a/packages-user/data-base/src/map/tile.ts b/packages-user/data-base/src/map/tile.ts
index f882c76..e5aede3 100644
--- a/packages-user/data-base/src/map/tile.ts
+++ b/packages-user/data-base/src/map/tile.ts
@@ -1,6 +1,7 @@
 import { ITileLocator } from '@motajs/common';
 import {
     FaceDirection,
+    FaceGroup,
     IDataCommon,
     IDataCommonExtended,
     ISaveableContent,
@@ -58,10 +59,17 @@ export abstract class MapTileBase<TSave extends IMapBlockSaveBase>
         const cur = this.num();
         const next = this.layer.faceBinder.getFaceOf(cur, direction);
         if (next) {
+            // 先尝试在 dir8 中寻找
             this.set(next.identifier);
             return next.identifier;
         } else {
-            return cur;
+            // 找不到则降级到 dir4
+            const handler = this.state.faceManager.get(FaceGroup.Dir4);
+            if (!handler) return cur;
+            const degraded = handler.degrade(direction);
+            const next = this.layer.faceBinder.getFaceOf(cur, degraded);
+            if (next) return next.identifier;
+            else return cur;
         }
     }
 
diff --git a/packages-user/data-common/src/common/face.ts b/packages-user/data-common/src/common/face.ts
index c95dab6..5aef3bd 100644
--- a/packages-user/data-common/src/common/face.ts
+++ b/packages-user/data-common/src/common/face.ts
@@ -3,7 +3,7 @@ import { IFaceData, IRoleFaceBinder } from './types';
 import { isNil } from 'lodash-es';
 import { FaceDirection } from './types';
 
-interface FaceInfo {
+interface IFaceInfo {
     /** 此图块的朝向 */
     readonly face: FaceDirection;
     /** 此图块对应的映射 */
@@ -12,7 +12,7 @@ interface FaceInfo {
 
 export class RoleFaceBinder implements IRoleFaceBinder {
     /** 每个图块对应的朝向信息 */
-    private faceMap: Map<number, FaceInfo> = new Map();
+    private faceMap: Map<number, IFaceInfo> = new Map();
     /** 主要朝向映射 */
     private mainMap: Map<number, FaceDirection> = new Map();
 
@@ -20,7 +20,7 @@ export class RoleFaceBinder implements IRoleFaceBinder {
         this.mainMap.set(identifier, main);
         const map = new Map<FaceDirection, number>();
         map.set(main, identifier);
-        const info: FaceInfo = { face: main, map };
+        const info: IFaceInfo = { face: main, map };
         this.faceMap.set(identifier, info);
     }
 
@@ -36,7 +36,7 @@ export class RoleFaceBinder implements IRoleFaceBinder {
         }
         const { map } = this.faceMap.get(main)!;
         map.set(face, identifier);
-        const info: FaceInfo = { face, map };
+        const info: IFaceInfo = { face, map };
         this.faceMap.set(identifier, info);
         this.mainMap.set(identifier, mainFace);
     }
@@ -50,8 +50,8 @@ export class RoleFaceBinder implements IRoleFaceBinder {
         return data;
     }
 
-    getFaceDirection(identifier: number): FaceDirection | undefined {
-        return this.faceMap.get(identifier)?.face;
+    getFaceDirection(identifier: number): FaceDirection {
+        return this.faceMap.get(identifier)?.face ?? FaceDirection.Unknown;
     }
 
     getMainFace(identifier: number): IFaceData | null {
diff --git a/packages-user/data-common/src/common/faceManager.ts b/packages-user/data-common/src/common/faceManager.ts
index d46c362..42aa3b4 100644
--- a/packages-user/data-common/src/common/faceManager.ts
+++ b/packages-user/data-common/src/common/faceManager.ts
@@ -117,6 +117,13 @@ export class Dir8FaceHandler implements IFaceHandler<FaceDirection> {
         return map.get(degraded) ?? FaceDirection.Unknown;
     }
 
+    dirOf(dx: number, dy: number): FaceDirection {
+        for (const [dir, { x, y }] of DIR8_MOVEMENTS) {
+            if (x === dx && y === dy) return dir;
+        }
+        return FaceDirection.Unknown;
+    }
+
     mapDirection(): Iterable<FaceDirection> {
         return DIR8_MOVEMENTS.keys();
     }
@@ -192,6 +199,13 @@ export class Dir4FaceHandler implements IFaceHandler<FaceDirection> {
         return map.get(degraded) ?? FaceDirection.Unknown;
     }
 
+    dirOf(dx: number, dy: number): FaceDirection {
+        for (const [dir, { x, y }] of DIR8_MOVEMENTS) {
+            if (x === dx && y === dy) return dir;
+        }
+        return FaceDirection.Unknown;
+    }
+
     mapDirection(): Iterable<FaceDirection> {
         return DIR4_MOVEMENTS.keys();
     }
diff --git a/packages-user/data-common/src/common/index.ts b/packages-user/data-common/src/common/index.ts
index f989da9..a9beda6 100644
--- a/packages-user/data-common/src/common/index.ts
+++ b/packages-user/data-common/src/common/index.ts
@@ -3,4 +3,3 @@ export * from './faceManager';
 export * from './indexer';
 export * from './mover';
 export * from './types';
-export * from './utils';
diff --git a/packages-user/data-common/src/common/mover.ts b/packages-user/data-common/src/common/mover.ts
index 843b751..96a4595 100644
--- a/packages-user/data-common/src/common/mover.ts
+++ b/packages-user/data-common/src/common/mover.ts
@@ -463,20 +463,6 @@ export abstract class ObjectMover<T extends IObjectMovable>
         this.moveQueue.push(step);
     }
 
-    /**
-     * 获取相对移动（如前进）所使用的基准方向
-     *
-     * 优先取本步之前已确定的移动方向，使多步前进保持同轴；否则回退到当前朝向。
-     * 后退不使用此基准，一律以当前朝向为准
-     */
-    private getCurrentDirection(): FaceDirection {
-        if (this.moveDirection !== FaceDirection.Unknown) {
-            return this.moveDirection;
-        } else {
-            return this.faceDirection;
-        }
-    }
-
     /**
      * 根据步骤内容预先同步移动器内部状态
      *
@@ -498,13 +484,11 @@ export abstract class ObjectMover<T extends IObjectMovable>
                 this.faceDirection = step.value;
                 break;
             case ObjectMoveType.Special: {
+                const dir = this.faceDirection;
                 if (step.direction === ObjectSpecialStep.Backward) {
-                    // 后退基准固定为当前朝向，避免被本步写入的反方向改写后摆动
-                    const dir = this.faceDirection;
                     this.moveDirection = this.faceHandler.opposite(dir);
                     this.faceDirection = dir;
                 } else {
-                    const dir = this.getCurrentDirection();
                     this.moveDirection = dir;
                     this.faceDirection = dir;
                 }
diff --git a/packages-user/data-common/src/common/types.ts b/packages-user/data-common/src/common/types.ts
index 97259e2..4cd3184 100644
--- a/packages-user/data-common/src/common/types.ts
+++ b/packages-user/data-common/src/common/types.ts
@@ -48,10 +48,10 @@ export interface IRoleFaceBinder {
     getFaceOf(identifier: number, face: FaceDirection): IFaceData | null;
 
     /**
-     * 获取指定图块数字是哪个朝向
+     * 获取指定图块数字是哪个朝向，如果没有指定图块的数据，那么返回 `FaceDirection.Unknown`
      * @param identifier 图块数字
      */
-    getFaceDirection(identifier: number): FaceDirection | undefined;
+    getFaceDirection(identifier: number): FaceDirection;
 
     /**
      * 获取指定图块数字绑定至的主朝向
diff --git a/packages-user/data-common/src/common/utils.ts b/packages-user/data-common/src/common/utils.ts
deleted file mode 100644
index bd14769..0000000
--- a/packages-user/data-common/src/common/utils.ts
+++ /dev/null
@@ -1,186 +0,0 @@
-import { FaceDirection } from './types';
-
-/**
- * @deprecated 用 `IFaceHandler` 接口
- * 获取指定朝向的坐标偏移量
- * @param dir 朝向
- */
-export function getFaceMovement(dir: FaceDirection): Loc {
-    switch (dir) {
-        case FaceDirection.Left:
-            return { x: -1, y: 0 };
-        case FaceDirection.Right:
-            return { x: 1, y: 0 };
-        case FaceDirection.Up:
-            return { x: 0, y: -1 };
-        case FaceDirection.Down:
-            return { x: 0, y: 1 };
-        case FaceDirection.LeftUp:
-            return { x: -1, y: -1 };
-        case FaceDirection.RightUp:
-            return { x: 1, y: -1 };
-        case FaceDirection.LeftDown:
-            return { x: -1, y: 1 };
-        case FaceDirection.RightDown:
-            return { x: 1, y: 1 };
-        case FaceDirection.Unknown:
-            return { x: 0, y: 0 };
-    }
-}
-
-/**
- * @deprecated 用 `IFaceHandler` 接口
- * 将八方向朝向降级为四方向朝向
- * @param dir 朝向
- * @param unknown 如果朝向是 `FaceDirection.Unknown`，那么会返回什么，默认值是未知
- */
-export function degradeFace(
-    dir: FaceDirection,
-    unknown: FaceDirection = FaceDirection.Unknown
-): FaceDirection {
-    switch (dir) {
-        case FaceDirection.LeftUp:
-            return FaceDirection.Left;
-        case FaceDirection.LeftDown:
-            return FaceDirection.Left;
-        case FaceDirection.RightUp:
-            return FaceDirection.Right;
-        case FaceDirection.RightDown:
-            return FaceDirection.Right;
-        case FaceDirection.Unknown:
-            return unknown;
-    }
-    return dir;
-}
-
-/**
- * @deprecated 用 `IFaceHandler` 接口
- * 获取指定朝向旋转后的朝向
- * @param dir 当前朝向
- * @param anticlockwise 是否逆时针旋转，默认顺时针
- * @param face8 是否使用八朝向。为 `false` 时，旋转为九十度旋转，即 上->右->下->左，左上->右上->右下->左下。
- *              为 `true` 时，旋转为四十五度旋转，即 上->右上->右->右下->下->左下->左->左上。逆时针反过来旋转。
- */
-export function nextFaceDirection(
-    dir: FaceDirection,
-    anticlockwise: boolean = false,
-    face8: boolean = false
-): FaceDirection {
-    if (face8) {
-        if (anticlockwise) {
-            switch (dir) {
-                case FaceDirection.Left:
-                    return FaceDirection.LeftDown;
-                case FaceDirection.LeftDown:
-                    return FaceDirection.Down;
-                case FaceDirection.Down:
-                    return FaceDirection.RightDown;
-                case FaceDirection.RightDown:
-                    return FaceDirection.Right;
-                case FaceDirection.Right:
-                    return FaceDirection.RightUp;
-                case FaceDirection.RightUp:
-                    return FaceDirection.Up;
-                case FaceDirection.Up:
-                    return FaceDirection.LeftUp;
-                case FaceDirection.LeftUp:
-                    return FaceDirection.Left;
-                case FaceDirection.Unknown:
-                    return FaceDirection.Unknown;
-            }
-        } else {
-            switch (dir) {
-                case FaceDirection.Left:
-                    return FaceDirection.LeftUp;
-                case FaceDirection.LeftUp:
-                    return FaceDirection.Up;
-                case FaceDirection.Up:
-                    return FaceDirection.RightUp;
-                case FaceDirection.RightUp:
-                    return FaceDirection.Right;
-                case FaceDirection.Right:
-                    return FaceDirection.RightDown;
-                case FaceDirection.RightDown:
-                    return FaceDirection.Down;
-                case FaceDirection.Down:
-                    return FaceDirection.LeftDown;
-                case FaceDirection.LeftDown:
-                    return FaceDirection.Left;
-                case FaceDirection.Unknown:
-                    return FaceDirection.Unknown;
-            }
-        }
-    } else {
-        if (anticlockwise) {
-            switch (dir) {
-                case FaceDirection.Left:
-                    return FaceDirection.Down;
-                case FaceDirection.Down:
-                    return FaceDirection.Right;
-                case FaceDirection.Right:
-                    return FaceDirection.Up;
-                case FaceDirection.Up:
-                    return FaceDirection.Left;
-                case FaceDirection.LeftUp:
-                    return FaceDirection.LeftDown;
-                case FaceDirection.LeftDown:
-                    return FaceDirection.RightDown;
-                case FaceDirection.RightDown:
-                    return FaceDirection.RightUp;
-                case FaceDirection.RightUp:
-                    return FaceDirection.LeftUp;
-                case FaceDirection.Unknown:
-                    return FaceDirection.Unknown;
-            }
-        } else {
-            switch (dir) {
-                case FaceDirection.Left:
-                    return FaceDirection.Up;
-                case FaceDirection.Up:
-                    return FaceDirection.Right;
-                case FaceDirection.Right:
-                    return FaceDirection.Down;
-                case FaceDirection.Down:
-                    return FaceDirection.Left;
-                case FaceDirection.LeftUp:
-                    return FaceDirection.RightUp;
-                case FaceDirection.RightUp:
-                    return FaceDirection.RightDown;
-                case FaceDirection.RightDown:
-                    return FaceDirection.LeftDown;
-                case FaceDirection.LeftDown:
-                    return FaceDirection.LeftUp;
-                case FaceDirection.Unknown:
-                    return FaceDirection.Unknown;
-            }
-        }
-    }
-}
-
-/**
- * @deprecated 用 `IFaceHandler` 接口
- * 根据朝向字符串获取朝向枚举值
- * @param dir 朝向字符串
- */
-export function fromDirectionString(dir: Dir2): FaceDirection {
-    switch (dir) {
-        case 'left':
-            return FaceDirection.Left;
-        case 'right':
-            return FaceDirection.Right;
-        case 'up':
-            return FaceDirection.Up;
-        case 'down':
-            return FaceDirection.Down;
-        case 'leftup':
-            return FaceDirection.LeftUp;
-        case 'rightup':
-            return FaceDirection.RightUp;
-        case 'leftdown':
-            return FaceDirection.LeftDown;
-        case 'rightdown':
-            return FaceDirection.RightDown;
-        default:
-            return FaceDirection.Unknown;
-    }
-}
diff --git a/packages/common/src/logger.json b/packages/common/src/logger.json
index 7c5d8a0..4e27c77 100644
--- a/packages/common/src/logger.json
+++ b/packages/common/src/logger.json
@@ -270,6 +270,7 @@
         "189": "Cannot flatten autotile since it cannot be splitted evenly. Autotile width: $1, frames: $2.",
         "190": "Cannot flatten autotile since its width or height cannot be divided evenly. Autotile frame size: [$1,$2].",
         "191": "Cannot cache autotile since no its frame or type data stored.",
+        "192": "A FaceGroup.Dir8 face handler registration is expected.",
         "1001": "Event(setBlock): Unknown tile '$1' when setting block."
     }
 }
diff --git a/packages/common/src/utils/types.ts b/packages/common/src/utils/types.ts
index acc6c90..a99d1d7 100644
--- a/packages/common/src/utils/types.ts
+++ b/packages/common/src/utils/types.ts
@@ -185,6 +185,13 @@ export interface IFaceHandler<T extends number> {
      */
     next(dir: number, anticlockwise?: boolean): T;
 
+    /**
+     * 获取对应于指定偏移量的朝向方向。如果有多个符合要求，那么会返回其中一个符合要求的朝向
+     * @param dx 横坐标移动偏移量
+     * @param dy 纵坐标移动偏移量
+     */
+    dirOf(dx: number, dy: number): T;
+
     /**
      * 迭代本组支持的所有朝向，包含 `Unknown`
      */