How to keep entities grounded and recognize collisions?

Questions & Answers
1

Hello,

I’m creating a 2d platformer. I have followed the various ‘Enemy Follow a player tutorial’ I’ve found online. I can get the enemy to chase the player, but how do I get the enemy to stay grounded? I have a collision box that detects interaction with the player, but the collision does not seem to recognize walls or level geometry.

I’ve tried to add a Rigidbody and a checked the ‘use gravity’ box, but nothing seem to recognize collisions. Any advice on how to add gravity through code? Thanks for your help.

Sidenote: I think that the LookAt.FindObjectWithTag"Player" (Pseudocode) was causing the enemy to spin out of control. i’m not sure if this is also causing the enemy to ‘float’

2

You might already know, but the method you use to move your character determines if collision are detected or not. Moving a character by its transform does nothing for you, only the CharacterController and Rigidbody will help.

You could use nothing but a CharacterController and add gravity manually by calling Move() with a negative y. To follow Unity’s recommendation of calling Move() only once per frame, you may ‘stack’ desired movement into a Vector3 variable which is applied at every frame.

There’s also SimpleMove() that automatically adds gravity…