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Question by acuppatea · Dec 24, 2016 at 06:29 AM · c#collisionplayer movement

How do I stop movement once a the player hits a wall?

Hi, unity noob here. I have a box as a terrain; floor and 4 walls. So far the movement is almost done except for one thing, making the player stop moving once he hits a wall. The code I have is this -

 public class Movement : MonoBehaviour {
 public int mSpeed = 10;
 Collider playerColl;
 void Start () {
 playerColl = this.GetComponent<BoxCollider>();
 }    
 void Update () {
     if(Input.GetKey(KeyCode.S)){
         transform.Translate(mSpeed*Time.deltaTime,0f,0f);
     }
     if(Input.GetKey(KeyCode.D)){
         transform.Translate(0f,0f,mSpeed*Time.deltaTime);
     }
     if(Input.GetKey(KeyCode.W)){
         transform.Translate(-mSpeed*Time.deltaTime,0f,0f);
     }
     if(Input.GetKey(KeyCode.A)){
         transform.Translate(0f,0f,-    mSpeed*Time.deltaTime);
     }
 }

}

The issue Im having is, since the movement is done like above, the player effectively ignores all colliders in the scene. How do I make it not ignore collision?

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Answer by IgorAherne · Dec 24, 2016 at 08:50 PM

add a rigidbody to the player, without it the coliders won't register colliision with one another. If there are any colliders which are moving in your scene, - always attach rigidbody to them. Also, if you don't do this, it hits physics performance hard.

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avatar image acuppatea · Dec 24, 2016 at 09:14 PM 0
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This helped a lot. $$anonymous$$any thanks!! :D

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Answer by Sky84 · Dec 24, 2016 at 11:41 PM

Hello @acuppatea, in Unity there already a collision detection. Try to add a Rigidbody. Just a question : It's a 2D game ? Because if there is a 2D game, remove the Boxcollider Component and add the BoxCollider2D. and it should works

Sorry for bad english.

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