Wait for 5 seconds to hide the canvas

Hey, I want to deactive car control as car enters the OnTriggerEnter and show warning canvas for 5 seconds. I tried to do coroutine but didnt get it to work. :/ any help? Many thanks

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using UnityEngine.UI;
4. using UnityEngine.SceneManagement;
5.  
6. public class task1 : MonoBehaviour
7. {
8.  
9.     public Canvas passCanvas;
10.     public Canvas failCanvas;
11.     public Canvas warningCanvas;
12.     public Text txtSpeed;
13.     // public float speed;
14.     //  private Rigidbody rigid;
15.     //  bool isTaskOn;
16.     float maximumAllowed = 33.0f;
17.  
18.     private bool missionEnd = false;
19.  
20.  
21.     // Use this for initialization
22.     void Start()
23.     {
24.         // speed = rigid.velocity.magnitude * 3.6f;
25.         // isTaskOn = false;
26.         passCanvas.enabled = false;
27.         failCanvas.enabled = false;
28.         warningCanvas.enabled = false;
29.  
30.     }
31.  
32.     // Update is called once per frame
33.     void Update()
34.     {
35.  
36.         float sp = this.GetComponent<RCCCarControllerV2>().speed * 0.6213712f;
37.  
38.         if (sp > maximumAllowed)
39.         {
40.             this.GetComponent<RCCCarControllerV2>().canControl = false;
41.  
42.             missionEnd = true;
43.  
44.             //print("you failed"); ;
45.             failCanvas.enabled = true;
46.         }
47.         if (missionEnd)
48.         {
49.             this.GetComponent<RCCCarControllerV2>().speed *= 0.98f;
50.             if (this.GetComponent<RCCCarControllerV2>().speed < 1)
51.                 this.GetComponent<RCCCarControllerV2>().speed = 0f;
52.         }
53.         txtSpeed.text = Mathf.Round(sp).ToString();
54.         /*  if(isTaskOn)
55.           {
56.  
57.           }*/
58.     }
59.  
60.     private bool hasPassedPoint1;
61.     private bool hasPassedPoint2;
62.  
63.     void OnTriggerEnter(Collider collider)
64.     {
65.         if (collider.gameObject.tag == "task1")
66.         {
67.             warningCanvas.enabled = true;
68.            
69.             //isTaskOn = true;
70.         }
71.         else if (collider.gameObject.tag == "pedesterianPoint1")
72.         {
73.             hasPassedPoint1 = true;
74.         }
75.         else if (collider.gameObject.tag == "pedesterianPoint2")
76.         {
77.             hasPassedPoint2 = true;
78.  
79.             if (hasPassedPoint1 == false)
80.             {
81.                 //fail
82.             }
83.             else
84.             {
85.                 //sucess
86.  
87.             }
88.         }
89.  
90.     }
91.     void OnTriggerExit(Collider collider)
92.     {
93.  
94.         if (collider.gameObject.tag == "task1")
95.         {
96.             print("you won");
97.             passCanvas.enabled = true;
98.             this.GetComponent<RCCCarControllerV2>().canControl = false;
99.             missionEnd = true;
100.  
101.         }
102.     }
103.     public void playAgain()
104.     {
105.         //Application.LoadLevel("testScene 1");
106.         SceneManager.LoadScene("testScene 1");
107.         //Invoke("sayHello", 5f);
108.     }
109.     void sayHello()
110.     {
111.         passCanvas.enabled = true;
112.         failCanvas.enabled = false;
113.     }
114. }
115.  

 

Code (csharp):

1.  
2. float lockedControls;
3.  
4. void Update()
5. {
6.     if (lockedControls > 0)
7.     {
8.         lockedControls -= Time.deltaTime;
9.         return;
10.     }
11.    
12.     ...
13. }
14.  
15. void OnTriggerEnter(Collider collider)
16. {
17.     lockedControls = 5f;
18. }
19.  

 

You should use Coroutine, they are perfect for this like

Coroutine()
(
ShowMyPanelScript();
yield return new WaitForSeconds(5f);
UnShowMyPanelScript();
yield return null;
)

 

Starting coroutines inside events that can happen twice (in this case enter again on trigger before 5 seconds) can be problematic as it will run 2 "simultaneous" processes.

 

Have a look at Panda BT. It's a suitable tool to manage frame-independent logics:

http://www.pandabehaviour.com

Let me know if you have any question about using it (I'm the author).

 

thanks guys for replies, I sorted by using invoke and by disabling car control

Code (CSharp):

1.  void OnTriggerEnter(Collider collider)
2.     {
3.         if (collider.gameObject.tag == "task1")
4.         {
5.             warningCanvas.enabled = true;
6.             Invoke("hideWarningCanvas", 5.0f);
7.             this.GetComponent<RCCCarControllerV2>().canControl = false;
8.             missionEnd = true;
9.         }
10.     }
11.     void hideWarningCanvas()
12.     {
13.         warningCanvas.enabled = false;
14.         this.GetComponent<RCCCarControllerV2>().canControl = true;
15.         missionEnd = false;