Update CollectCoins

CollectCoins/Assets/Scripts/BulletScript.cs

@@ -0,0 +1,22 @@
+using UnityEngine;
+using System.Collections;
+
+public class BulletScript : MonoBehaviour {
+
+	public float bulletLifeTime = 10.0f;
+	// Use this for initialization
+	void Start () {
+	
+	}
+	
+	// Update is called once per frame
+	void Update () {
+		StartCoroutine("bulletDestory");
+	}
+
+	IEnumerator bulletDestory()
+	{
+		yield return new WaitForSeconds(bulletLifeTime);
+		Destroy(this.gameObject);
+	}
+}