From 3db514468fac20693a257179d35592d0b78e2936 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Wed, 7 Jul 2021 22:13:48 +0800
Subject: +RootMotion

---
 Assets/Scripts/Unit/RootMotion/RootMotionData.cs | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

(limited to 'Assets/Scripts/Unit/RootMotion/RootMotionData.cs')

diff --git a/Assets/Scripts/Unit/RootMotion/RootMotionData.cs b/Assets/Scripts/Unit/RootMotion/RootMotionData.cs
index 44f3d294..4fe2db97 100644
--- a/Assets/Scripts/Unit/RootMotion/RootMotionData.cs
+++ b/Assets/Scripts/Unit/RootMotion/RootMotionData.cs
@@ -2,8 +2,28 @@
 using System.Collections.Generic;
 using UnityEngine;
 
+[CreateAssetMenu(fileName = "RootMotion Data")]
+// 单个动画的root motion
 public class RootMotionData : ScriptableObject
 {
-        
+    public string animationName;
+
+    public int frameCount;
+
+    public List<Vector3> positionList;
+
+    public float animationLength;
+
+    public float fps;
+
+    public Vector3 GetRootMotion(float normalTime)
+    {
+        normalTime = Mathf.Clamp(normalTime, 0, 1);
+        int prevFrame = (int)Mathf.Floor((frameCount - 1) * normalTime) % frameCount;
+        int nextFrame = (int)Mathf.Ceil((frameCount - 1) * normalTime) % frameCount;
+        float frameRate = 1 / fps;
+        float t = (normalTime * animationLength - prevFrame * frameRate) / frameRate;
+        return Vector3.Lerp(positionList[prevFrame], positionList[nextFrame], t);
+    }
 
 }
-- 
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