How to trigger a Jump on an offmesh link

As per the screenshot below i have a navmesh with an offmesh link that goes up onto a box and i want the charcter with the agent attached to jump when he hits the start of the off mesh link. I can't find any information on how to achieve this and was hoping you guys could help?



The character hits the offmesh link and carries on running forward into the wall, if i call
agent.isOnOffMeshLink at this point it returns true so i know the off mesh link has been triggered, just not sure how to transition the character into a jump upon triggering the offmesh link.

Any advice?

 

I assume you have disable "Auto Traverse OffMeshLink" on the agent component, and this is what you need for custom movement when moving on offmeshlinks. Below is an example of custom movement(s) .

The gist is: move agent by its transform - when done call "CompleteOffMeshLink"

Code (csharp):

1. // AgentLinkMover.cs
2. using UnityEngine;
3. using System.Collections;
4.  
5. public enum OffMeshLinkMoveMethod {
6.    Teleport,
7.    NormalSpeed,
8.    Parabola,
9.    Curve
10. }
11.  
12. [RequireComponent (typeof (NavMeshAgent))]
13. public class AgentLinkMover : MonoBehaviour {
14.    public OffMeshLinkMoveMethod method = OffMeshLinkMoveMethod.Parabola;
15.    public AnimationCurve curve = new AnimationCurve ();
16.    IEnumerator Start () {
17.      NavMeshAgent agent = GetComponent<NavMeshAgent> ();
18.      agent.autoTraverseOffMeshLink = false;
19.      while (true) {
20.        if (agent.isOnOffMeshLink) {
21.          if (method == OffMeshLinkMoveMethod.NormalSpeed)
22.            yield return StartCoroutine (NormalSpeed (agent));
23.          else if (method == OffMeshLinkMoveMethod.Parabola)
24.            yield return StartCoroutine (Parabola (agent, 2.0f, 0.5f));
25.          else if (method == OffMeshLinkMoveMethod.Curve)
26.            yield return StartCoroutine (Curve (agent, 0.5f));
27.          agent.CompleteOffMeshLink ();
28.        }
29.        yield return null;
30.      }
31.    }
32.    IEnumerator NormalSpeed (NavMeshAgent agent) {
33.      OffMeshLinkData data = agent.currentOffMeshLinkData;
34.      Vector3 endPos = data.endPos + Vector3.up*agent.baseOffset;
35.      while (agent.transform.position != endPos) {
36.        agent.transform.position = Vector3.MoveTowards (agent.transform.position, endPos, agent.speed*Time.deltaTime);
37.        yield return null;
38.      }
39.    }
40.    IEnumerator Parabola (NavMeshAgent agent, float height, float duration) {
41.      OffMeshLinkData data = agent.currentOffMeshLinkData;
42.      Vector3 startPos = agent.transform.position;
43.      Vector3 endPos = data.endPos + Vector3.up*agent.baseOffset;
44.      float normalizedTime = 0.0f;
45.      while (normalizedTime < 1.0f) {
46.        float yOffset = height * 4.0f*(normalizedTime - normalizedTime*normalizedTime);
47.        agent.transform.position = Vector3.Lerp (startPos, endPos, normalizedTime) + yOffset * Vector3.up;
48.        normalizedTime += Time.deltaTime / duration;
49.        yield return null;
50.      }
51.    }
52.    IEnumerator Curve (NavMeshAgent agent, float duration) {
53.      OffMeshLinkData data = agent.currentOffMeshLinkData;
54.      Vector3 startPos = agent.transform.position;
55.      Vector3 endPos = data.endPos + Vector3.up*agent.baseOffset;
56.      float normalizedTime = 0.0f;
57.      while (normalizedTime < 1.0f) {
58.        float yOffset = curve.Evaluate (normalizedTime);
59.        agent.transform.position = Vector3.Lerp (startPos, endPos, normalizedTime) + yOffset * Vector3.up;
60.        normalizedTime += Time.deltaTime / duration;
61.        yield return null;
62.      }
63.    }
64. }
65.  

 

Hey Jakob, could you explain your code? I'm new to AI programming so I'm just creating text examples for now. I want to just create an Agent that will jump over an object via OffMeshLink.

 

You know what, I've tried this code out, and apparently the while(true) is causing unity to crash. Maybe some explanation and tweaks might help.

 

@Kalbytron that's really weird - i just verified the script again - and it seems to work for all options of traversal here. Can you be a bit more specific on the crash ?

 

If you're new to programming co-routines might not be the easiest start.
I'll give an outline instead: The script gives the NavMeshAgent the option to traverse OffMeshLinks in one of four ways
• Teleport - simply skips the link instantaneous.
• Normal Speed - makes the agent move across with its normal move-speed.
• Parabola - make agent follow a parabolic curve across link.
• Curve - make the agent follow a curve of your choice (click curve in inspector to edit).

 

@Jakob_Unity
The check onLink never seems to return as true, more people have this issue at the following question link :
https://forum.unity3d.com/threads/navmeshagent-isonoffmeshlink-move.163500/

Any help would be appreciated

 

when I use they script I get error
The name `Curve' does not exist in the current context
The name `Parabola' does not exist in the current context
The name `NormalSpeed' does not exist in the current context
can someone please help

 

works perfectly, thanks

 

[QUOTE = "Jakob_Unity, post: 2135131, membro: 79005"] @ Kalbytron isso é muito estranho - eu apenas verifiquei o script novamente - e parece funcionar para todas as opções de travessia aqui. Você pode ser um pouco mais específico sobre o acidente? [/CITAR]
muito bom cara, testei e funcionou perfeitamente

 

Hey Jakob,

I was hoping you could help clarify how you go about STARTING this process and then furthermore, how do you catch the complete?

I have a Player Agent which uses agent.velocity and I am trying to get it to navigate the link when I press a button. So far nothing.

 

Thank you this saved me a lot of time.

 

This look fine and i got this example working, but because i have an enemycontroller that uses agent speed, should i do something like "agent.istopped = true" while doing the curve or the parabola? because right now do something like a jump.