1 files changed, 41 insertions, 0 deletions
diff --git a/Assets/Scripts/Avatar/EnforceZCoord.cs b/Assets/Scripts/Avatar/EnforceZCoord.cs
new file mode 100644
index 00000000..57a50b2b
--- /dev/null
+++ b/Assets/Scripts/Avatar/EnforceZCoord.cs
@@ -0,0 +1,41 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class EnforceZCoord : MonoBehaviour
+{
+	void OnAnimatorMove()
+	{
+		Animator animator = GetComponent<Animator>();
+		if (animator == null)
+			return;
+
+		AnimatorStateInfo stateInfo = animator.GetCurrentAnimatorStateInfo(0);
+
+		if (stateInfo.IsTag("IgnoreRootMotion"))
+		{
+			// ignore root motion 
+			//Debug.Log("ignore root motion ");
+		}
+		else if (stateInfo.IsTag("IgnoreRootMotionY"))
+		{
+			Vector3 position = transform.position;
+			position.x += animator.deltaPosition.x;
+			transform.position = position;
+
+			transform.rotation *= animator.deltaRotation;
+		}
+		else
+		{
+			// animator.deltaPosition和animator.deltaRotation是animator做的root motion后的结果
+			// 在后面做一个硬性约束z=0，将角色限制在z=0平面上
+			Vector3 position = transform.position;
+			position.x += animator.deltaPosition.x;
+			position.y += animator.deltaPosition.y;
+			transform.position = position;
+
+			// animation clip导入设置旋转一般上设置为baked inpose，不需要手动限制
+			transform.rotation *= animator.deltaRotation;
+		}
+	}
+}