1 files changed, 38 insertions, 4 deletions
diff --git a/Assets/Scripts/Physics/PhysicsBody.cs b/Assets/Scripts/Physics/PhysicsBody.cs
index 8fc33fa7..b8f3b7ed 100644
--- a/Assets/Scripts/Physics/PhysicsBody.cs
+++ b/Assets/Scripts/Physics/PhysicsBody.cs
@@ -21,20 +21,54 @@ using UnityEngine;
 public sealed class PhysicsBody : MonoBehaviour
 {
 
+    // 是否朝向右侧（正向）
+    public bool IsFaceRight
+    {
+        get 
+        {
+            float rotY = Quaternion.ToEulerAngles(transform.rotation).y;
+            rotY = Mathf.Rad2Deg * rotY;
+            return rotY > 0 && rotY <= 180;
+        }
+    }
+
+    // 全局速度，以世界为参考系
     [SerializeField]
-    private Vector3 m_Velocity;
     public Vector3 Velocity
     {
         get
         {
-            return m_Velocity; 
+            Vector3 vel = m_LocalVelocity; 
+            if (!IsFaceRight)
+                vel.x = -vel.x;
+            return vel;
         }
-		set
+        set
 		{
-			m_Velocity = value;
+            if (IsFaceRight)
+                m_LocalVelocity = value;
+            else
+                m_LocalVelocity = new Vector3(-value.x, value.y, value.z);
 		}
     }
 
+    // 以自身为参考系的速度，x>0向前，x<0向后，y>0向上，y<0向下。默认情况下以右为正方向
+    // 设置速度应该以local velocity为准
+    [SerializeField]
+    private Vector3 m_LocalVelocity;
+
+    public Vector3 LocalVelocity
+    {
+        get
+        {
+            return m_LocalVelocity;
+        }
+        set
+        {
+            m_LocalVelocity = value;
+        }
+    }
+
     [SerializeField]
     private float m_Weight;
     public float Weight