# playMaker

### Author Topic: How can I make 2 enemies not collide with each other?  (Read 3194 times)

#### Vecna

• Playmaker Newbie
• Posts: 14
##### How can I make 2 enemies not collide with each other?
« on: December 20, 2014, 04:14:31 PM »
I'm having a real hard time making my ai enemies not go into each other. I'm using playmaker to move them towards the player. The only way they don't collide is when I make them rigid bodies but then my player can push them around.

What is the best way to solve this?

• Playmaker Newbie
• Posts: 20
##### Re: How can I make 2 enemies not collide with each other?
« Reply #1 on: December 20, 2014, 04:31:15 PM »
You can use the layer collision matrix of Unity.

With this you can choose if colliders of the same type collide with each other or not.

http://docs.unity3d.com/Manual/LayerBasedCollision.html

#### Vecna

• Playmaker Newbie
• Posts: 14
##### Re: How can I make 2 enemies not collide with each other?
« Reply #2 on: December 20, 2014, 05:47:20 PM »
It only works if the enemies have rigid bodies but when they pump into each other they push each other with great velocity even when their mass is set to 99.

#### Vecna

• Playmaker Newbie
• Posts: 14
##### Re: How can I make 2 enemies not collide with each other?
« Reply #3 on: December 21, 2014, 07:41:10 AM »
There must be a way to make enemies not collide inside each other and have the player not be able to push them around. I have tried making a trigger make the movement speed 0 but that also doesn't work.

#### wheretheidivides

• Sr. Member
• Posts: 496
##### Re: How can I make 2 enemies not collide with each other?
« Reply #4 on: December 23, 2014, 08:47:51 PM »
Make a collision sphere that is bigger.  So you have 1 collision sphere just around the player for collision.  You create a 2nd one that is 2 meters away.  Then you check to see if player 2 has entered the 2nd sphere of player 1.  Make sense?

So basically, you create multiple collision spheres on a character and when something enter the biggest one, you have the other player do something.  So when a enemy enters the outer collision spehere, you tell that enemy to go somewhere else.

Here is a link to a video series going into depth about this.  It is in javascript, but you will get a good understanding of colliders on a player to do stuff.

http://www.walkerboystudio.com/html/unity_training___free__.html