6 files changed, 172 insertions, 124 deletions
diff --git a/AlienSurvival/Assets/Scripts/Physics/Editor.meta b/AlienSurvival/Assets/Scripts/Physics/Editor.meta
new file mode 100644
index 0000000..fa70114
--- /dev/null
+++ b/AlienSurvival/Assets/Scripts/Physics/Editor.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 80c8d9ba082ca27419e9d6e6bbb39f6d
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/AlienSurvival/Assets/Scripts/Physics/Editor/TopDownTransformInspector.cs b/AlienSurvival/Assets/Scripts/Physics/Editor/TopDownTransformInspector.cs
new file mode 100644
index 0000000..b1139f2
--- /dev/null
+++ b/AlienSurvival/Assets/Scripts/Physics/Editor/TopDownTransformInspector.cs
@@ -0,0 +1,46 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEditor;
+
+
+[CustomEditor(typeof(TopDownTransform))]
+public class TopDownTransformInspector : Editor
+{
+
+	TopDownTransform m_TopDownTransform;
+
+	private void OnEnable()
+	{
+		m_TopDownTransform = target as TopDownTransform;
+	}
+
+	private void OnDisable()
+	{
+	}
+
+	public override void OnInspectorGUI()
+	{
+		base.OnInspectorGUI();
+	}
+
+	protected override void OnHeaderGUI()
+	{
+		base.OnHeaderGUI();
+	}
+
+	//https://answers.unity.com/questions/463207/how-do-you-make-a-custom-handle-respond-to-the-mou.html
+	private void OnSceneGUI()
+	{
+		Handles.color = Handles.xAxisColor;
+		m_TopDownTransform.x = EditorHandlesHelper.ScaleValue(m_TopDownTransform.x, m_TopDownTransform.Get3DPosition(), Vector3.right, 1f, Handles.ConeHandleCap, Quaternion.Euler(0, 90, 0), 1f, 0.1f);
+
+		Handles.color = Handles.yAxisColor;
+		m_TopDownTransform.y = EditorHandlesHelper.ScaleValue(m_TopDownTransform.y, m_TopDownTransform.Get3DPosition(), Vector3.up, 1f, Handles.ConeHandleCap, Quaternion.Euler(-90, 0, 0), 1f, 0.1f);
+
+		Handles.color = Handles.zAxisColor;
+		m_TopDownTransform.z = EditorHandlesHelper.ScaleValue(m_TopDownTransform.z, m_TopDownTransform.Get3DPosition() + new Vector3(0, -1.1f, 0), Vector3.up, 1f, Handles.ConeHandleCap, Quaternion.Euler(-90, 0, 0), 1f, 0.1f);
+
+	}
+
+}
+\ No newline at end of file
diff --git a/AlienSurvival/Assets/Scripts/Physics/Transform2D.cs.meta b/AlienSurvival/Assets/Scripts/Physics/Editor/TopDownTransformInspector.cs.meta
index ee1038d..09d9899 100644
--- a/AlienSurvival/Assets/Scripts/Physics/Transform2D.cs.meta
+++ b/AlienSurvival/Assets/Scripts/Physics/Editor/TopDownTransformInspector.cs.meta
@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 2b1fbd797bf03674e9d1b81edc11e3f1
+guid: a1871ab3b887e6b41ba4a43777b53192
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2
diff --git a/AlienSurvival/Assets/Scripts/Physics/TopDownTransform.cs b/AlienSurvival/Assets/Scripts/Physics/TopDownTransform.cs
new file mode 100644
index 0000000..3bb51b1
--- /dev/null
+++ b/AlienSurvival/Assets/Scripts/Physics/TopDownTransform.cs
@@ -0,0 +1,106 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
+
+/// <summary>
+/// 用于TopDown的Transform，支持模拟垂直高度
+/// </summary>
+[ExecuteInEditMode]
+[RequireComponent(typeof(Transform))]
+public class TopDownTransform : MonoBehaviour
+{
+	// 右手系
+	//  z
+	//  |
+	//  |  /y
+	//  | /
+	//  |/______x
+
+	// x, y, z ( z = height)
+	[SerializeField] private Vector3 m_LocalPosition;
+
+	// 只能绕一个虚拟轴旋转
+	[SerializeField] private float m_LocalRotation;
+
+	// x, z
+	[SerializeField] private Vector2 m_LocalScale;
+
+	public float x
+	{
+		get
+		{
+			return m_LocalPosition.x;
+		}
+		set
+		{
+			m_LocalPosition.x = value;
+			Project();
+		}
+	}
+	public float y
+	{
+		get
+		{
+			return m_LocalPosition.y;
+		}
+		set
+		{
+			m_LocalPosition.y = value;
+			Project();
+		}
+	}
+
+	public float z
+	{
+		get
+		{
+			return m_LocalPosition.z;
+		}
+		set
+		{
+			m_LocalPosition.z = value;
+			Project();
+		}
+	}
+	/// <summary>
+	/// “投影”，把坐标转换到Transform上
+	/// </summary>
+	public void Project()
+	{
+		Vector3 pos = transform.position;
+		pos.x = m_LocalPosition.x;
+		pos.y = m_LocalPosition.y + m_LocalPosition.z;
+
+		transform.position = pos;
+	}
+
+	private void Update()
+	{
+		Project();
+	}
+
+	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;
+		return pos;
+	}
+
+#if UNITY_EDITOR
+	private void OnDrawGizmos()
+	{
+		// dash line 
+		Vector3 start = transform.position;
+		Vector3 end = start - new Vector3(0, m_LocalPosition.z, 0);
+
+		Handles.DrawDottedLine(start, end, 1f);
+		Handles.DrawWireCube(end, new Vector3(0.1f, 0.1f, 0f));
+	}
+#endif
+
+}
+\ No newline at end of file
diff --git a/AlienSurvival/Assets/Scripts/Physics/TopDownTransform.cs.meta b/AlienSurvival/Assets/Scripts/Physics/TopDownTransform.cs.meta
new file mode 100644
index 0000000..cc1445d
--- /dev/null
+++ b/AlienSurvival/Assets/Scripts/Physics/TopDownTransform.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 2b1fbd797bf03674e9d1b81edc11e3f1
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {fileID: 2800000, guid: b7cb09ba3d43de2418ea93e3aa9cd4e4, type: 3}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/AlienSurvival/Assets/Scripts/Physics/Transform2D.cs b/AlienSurvival/Assets/Scripts/Physics/Transform2D.cs
deleted file mode 100644
index 813b0c6..0000000
--- a/AlienSurvival/Assets/Scripts/Physics/Transform2D.cs
+++ /dev/null
@@ -1,123 +0,0 @@
-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine;
-
-// Topdown专用的transform 
-public class Transform2D : MonoBehaviour
-{
-	public const float ORTHO_FACTOR = 1f; // 45°
-
-	public float alias_x
-	{
-		get
-		{
-			return z;
-		}
-	}
-
-	public float alias_y
-	{
-		get
-		{
-			return -x;
-		}
-	}
-
-	public float alias_h
-	{
-		get
-		{
-			return y;
-		}
-	}
-
-	public float x
-	{
-		get
-		{
-			return 0;
-		}
-	}
-
-	public float y
-	{
-		get
-		{
-			return 0;
-		}
-		set
-		{
-
-		}
-	}
-
-	public float z
-	{
-		get
-		{
-			return 0;
-		}
-		set
-		{
-
-		}
-	}
-
-	private Vector3 m_InnerPosition; // x, y, h
-
-	public Vector3 position // 
-	{
-		get
-		{
-			return m_InnerPosition;
-		}
-	}
-
-	public float angle
-	{
-		get
-		{
-			return 0; 
-		}
-		set
-		{
-
-		}
-	}
-
-	public Vector3 forward
-	{
-		get
-		{
-			return Vector3.zero;
-		}
-	}
-
-	public Vector3 up
-	{
-		get
-		{
-			return Vector3.zero;
-		}
-	}
-
-	public Vector3 right
-	{
-		get
-		{
-			return Vector3.zero;
-		}
-	}
-
-	public Vector2 orthocoord
-	{
-		get
-		{
-			Vector2 ortho = new Vector2();
-			ortho.x = x;
-			ortho.y = y + ORTHO_FACTOR * z;
-			return ortho;
-		}
-	}
-	
-}
-\ No newline at end of file