add：添加伤害字体脚本，添加红蓝双方倒计时

Assets/DamageNumbersPro/Demo/Scripts/DNP_CubeHighlight.cs

@@ -0,0 +1,35 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace DamageNumbersPro.Demo
+{
+    public class DNP_CubeHighlight : MonoBehaviour
+    {
+        public string propertyName = "_Color";
+        public AnimationCurve propertyCurve;
+        public float destructionDelay = 0.2f;
+
+        Material mat;
+
+        int propertyID;
+        float startTime;
+
+        void Start()
+        {
+            startTime = Time.time;
+            propertyID = Shader.PropertyToID(propertyName);
+
+            MeshRenderer mr = GetComponent<MeshRenderer>();
+            mat = mr.material;
+
+            Destroy(gameObject, destructionDelay);
+        }
+
+
+        void FixedUpdate()
+        {
+            mat.SetColor(propertyID, new Color(1, 0, 0, propertyCurve.Evaluate(Time.time - startTime)));
+        }
+    }
+}