I need hep with directions of navigating

Attacking offest


I' using this:
dirToPlayer = transform.position - Player.transform.position;
newPos = transform.position + dirToPlayer;

But this causes the enemy to go through the player(they have the same position).
I tried to do the offset like this:
newPos = transform.position - dirToPlayer + new Vector3(2, 0, 2);

But if facing another direction, the enemy goes behind the player
If facing north I should + new Vector3(2, 0, 2); If facing south - new Vector3(2, 0, 2);
I don't know how to explain exactly what I mean but I wish you understand.

 

Hi,

You want to walk toward Player but not cross bubble? or just stay outside the bubble?
You can just reduce vector

Code (CSharp):

1. newPos = transform.position + dirToPlayer - offsetScalar*(dirToPlayer.Normalize)

Or, you need to calculate tangent (line that touches the circle, but not crossing). Tangent can be on left or right side of the circle

Code (CSharp):

1. public static bool Circle2(Vector2 center, float r, Vector2 p, ref Vector2 tanPosA, ref Vector2 tanPosB)
2.         {
3.             p -= center;
4.             float P = p.magnitude;
5.             // if p is inside the circle, there ain't no tangents.
6.             if (P <= r)
7.             {
8.                 return false;
9.             }
10.             float a = r * r / P;
11.             float q = r * (float)Mathf.Sqrt((P * P) - (r * r)) / P;
12.             Vector2 pN = p / P;
13.             Vector2 pNP = new Vector2(-pN.y, pN.x);
14.             Vector2 va = pN * a;
15.             tanPosA = va + pNP * q;
16.             tanPosB = va - pNP * q;
17.             tanPosA += center;
18.             tanPosB += center;
19.  
20.             return true;
21.         }

 

Thanks a lot and sorry for late answer. I have another question related. If I use agent.SetDestination, the enemy, will find the shortest path to the point that's a line. How to make an navmeshagent to rotate around the player.
I never receive a reply on Navigation topic because It is very hard to set tags on a threads on unity forum

 

Hi,

Agent by default rotates game objects in path it follows, so you need to disable agent rotation

Code (CSharp):

1. NavMeshAgent.updateRotation = false

You can create smooth rotation from path to player object. (pseudo code, just an idea)

Code (CSharp):

1. update(){
2. var fractionOfJourney = dirToPlayer-(newPos - transform.position).magnitudeSqr / dirToPlayer.magnitudeSqr
3. var lookAt = Vector3.Lerp(newPos, Player.transform.position, fractionOfJourney);
4. transform.rotation = Quantarion.LookRotation(lookAt);
5. }

 

I implemented it in csharp and it is working, thanks!

 

Your welcome!