• Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
avatar image
0
Question by Finjitzu · Sep 16, 2011 at 08:35 PM · pathfindingwaypoints

Another Pathfinding/Waypoint problem

Hey all, I've implemented the A* Pathfinding project and I love it. But I've been scratching my head for a long time now on this problem.

This is how I want it to work:

Player create a series of way-points. As each way-point is created it populates an Array. The player push a button and the A* target moves to the position of the first way-point, then waits till the player moves to the A* target. When the player gets to the way-point destination, the A* target goes to the next way-point, and the pattern repeats till there are no more way-points...

The problems I'm having. The A* program doesn't move the play to the exact target. Which is not ideal, but I can live with it. BUT...if there is a solution please let me know. I've looked in the AIFollow script and can see where the code is that determines the ENDofPATH.

 //Use a lower pickNextWaypointDistance for the last point. If it isn't that close, then decrement the pathIndex to the previous value and break the loop
                 if ((currentWaypoint - tr.position).sqrMagnitude < (pickNextWaypointDistance*0.2)*(pickNextWaypointDistance*0.2)) {
                     ReachedEndOfPath ();
                     return;
                 } else {
                     pathIndex--;
                     //Break the loop, otherwise it will try to check for the last point in an infinite loop
                     break;
                 }

I've tried changing the if statement to the delta magnitude = 0 then call ReachedEndOfPath, but that gives some goofy results.

So if I can't get the Player position = the way-point position then I thought I could try using velocity of the player.

 for (i=0;i < waypointarray.length; i++){
 
         if(rigidbody.velocity.magnitude ==0){                            
 
             target.transform.position = Vector3(waypointarray[i].transform.position.x, waypointarray[i].transform.position.y -1.13, waypointarray[i].transform.position.z);                            
 
             i = i + 1;
 
             //yield;            
 
         }
 
     }

This freezes Unity and I have to restart. Can anyone think of another solution to this problem? Thanks in advance!

Comment
Add comment
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

0 Replies

· Add your reply
  • Sort: 

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Welcome to Unity Answers

The best place to ask and answer questions about development with Unity.

To help users navigate the site we have posted a site navigation guide.

If you are a new user to Unity Answers, check out our FAQ for more information.

Make sure to check out our Knowledge Base for commonly asked Unity questions.

If you are a moderator, see our Moderator Guidelines page.

We are making improvements to UA, see the list of changes.



Follow this Question

Answers Answers and Comments

2 People are following this question.

avatar image avatar image

Related Questions

Waypoints and AI pathfinding 1 Answer

Problems with my waypoints code 1 Answer

Follow up to AI Pathfinding Question 0 Answers

Passing stuff from script to script (setting change-able waypoints) .... 1 Answer

Make object follow a track but player can move it side to side 1 Answer

  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges