2 files changed, 34 insertions, 5 deletions
diff --git a/AlienSurvival/Assets/Scripts/TopDown/TopDownShadowCaster.cs b/AlienSurvival/Assets/Scripts/TopDown/TopDownShadowCaster.cs
index e027771..6741275 100644
--- a/AlienSurvival/Assets/Scripts/TopDown/TopDownShadowCaster.cs
+++ b/AlienSurvival/Assets/Scripts/TopDown/TopDownShadowCaster.cs
@@ -21,7 +21,7 @@ public class TopDownShadowCaster : MonoBehaviour
 		m_ShadowRenderer.flipX = flip;
 	}
 
-	private void Start()
+	private void Awake()
 	{
 		m_Coord = GetComponent<TopDownTransform>();
 		m_SpriteRenderer = GetComponent<SpriteRenderer>();
@@ -42,6 +42,10 @@ public class TopDownShadowCaster : MonoBehaviour
 		}
 	}
 
+	private void Start()
+	{
+	}
+
 	private void Update()
 	{
 		if (m_Shadow == null)
diff --git a/AlienSurvival/Assets/Scripts/TopDown/TopDownTransform.cs b/AlienSurvival/Assets/Scripts/TopDown/TopDownTransform.cs
index db52445..b1fdefe 100644
--- a/AlienSurvival/Assets/Scripts/TopDown/TopDownTransform.cs
+++ b/AlienSurvival/Assets/Scripts/TopDown/TopDownTransform.cs
@@ -91,16 +91,35 @@ public class TopDownTransform : MonoBehaviour
 		}
 	}
 
+	// 地表坐标（Topdown空间）
+	public Vector3 positionOnGround
+	{
+		set
+		{
+			Vector3 pos = position;
+			pos.x = value.x;
+			pos.y = value.y;
+			position = pos;
+			Project();
+		}
+		get
+		{
+			Vector3 pos = position;
+			pos.z = 0;
+			return pos;
+		}
+	}
+
 	/// <summary>
 	/// “投影”，把坐标转换到Transform上
 	/// </summary>
 	public void Project()
 	{
-		Vector3 pos = transform.position;
+		Vector3 pos = transform.localPosition;
 		pos.x = m_LocalPosition.x;
 		pos.y = m_LocalPosition.y + m_LocalPosition.z;
 
-		transform.position = pos;
+		transform.localPosition = pos;
 	}
 
 	private void Start()
@@ -118,23 +137,29 @@ public class TopDownTransform : MonoBehaviour
 		Project();
 	}
 
+	#region 转换到3D笛卡尔空间
 	public Vector3 Get3DPosition()
 	{
 		Vector3 pos = new Vector3();
 		pos.x = m_LocalPosition.x;
 		pos.y = m_LocalPosition.y + m_LocalPosition.z;
-		pos.z = transform.position.z;
+		pos.z = transform.localPosition.z;
 		return pos;
 	}
 
+	/// <summary>
+	/// 注意是在3D空间下
+	/// </summary>
+	/// <returns></returns>
 	public Vector3 GetGround3DPosition()
 	{
 		Vector3 pos = new Vector3();
 		pos.x = m_LocalPosition.x;
 		pos.y = m_LocalPosition.y ;
-		pos.z = transform.position.z;
+		pos.z = transform.localPosition.z;
 		return pos;
 	}
+	#endregion 
 
 #if UNITY_EDITOR
 	private void OnDrawGizmos()