Collision detection

Questions & Answers
1

Hey there, i’m having trouble getting my “character” to collide (it’s just a cube at the moment) with any object even though it has both a character controller and a box collider.

using UnityEngine;
using System.Collections;

public class WASDMove : MonoBehaviour {

// Use this for initialization

void Start () {
	
    collider.enabled = false;
}

// Update is called once per frame
void Update () {
	if (Input.GetKey ("a")) {
		float translation = Time.deltaTime * 10;
			transform.Translate(-2,0,0);
		}

if (Input.GetKey ("d"))

{   
	float translation = Time.deltaTime * 10;
		transform.Translate (2,0,0);

        }

if (Input.GetKey ("w"))

{

	float translation = Time.deltaTime * 10;
		transform.Translate(0,0,2);

        }

if (Input.GetKey ("s"))

{   

	float translation = Time.deltaTime * 10;
		transform.Translate (0,0,-2);

    }

}

}

Any ideas? I looked in the script reference and i couldn’t find anything that would work.

Could you give a fix and explain what it does and/or how it works?

Also, how would rotation work on a character? I have a fixed camera attached to the cube, and i need it to turn when pressing wasd. As in forward on w, backward on s, etc. etc.

Thanks!

love - Totality.

2

Translate ignores collision. Use CharacterController to move the character. It will detect the collision.

3

You might want to use rigidbody.AddForce to move around instead of transforms. Only rigidbodies will collide like that. Add a rigidbody to your character then replace your code based off of this example.

if (Input.GetKey (“s”)){

rigidbody.AddForce(Vector3.-forward);

}

There will be some sliding but I’m not going to cover how to fix that because there are many ways to do it. Just look at the unity scripting reference: http://unity3d.com/support/documentation/ScriptReference/Rigidbody.html

Also make sure you enable freeze rotation on the x and z axis.

If you don’t want to go this route, take a look at the code for the fps and 3rd person controllers.