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Question by 13yearoldceo · Apr 07, 2015 at 09:04 PM · rigidbody2dvelocityphysics2dprojectiletransform.forward

how to make an 2d object move the direction its facing using rigidbody2d.velcoity

i use getcomponent().velocity = new vector2( transform.right,rigidbody2d>().velocity.y) but i get an error about invalid arguments with floats

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avatar image kingcoyote · Apr 07, 2015 at 10:06 PM 0
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Could you post your actual code? What you've got there won't compile and I can't tell what you are trying to do.

avatar image 13yearoldceo · Apr 11, 2015 at 02:44 PM 0
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 using UnityEngine;
 using System.Collections;
 
 public class NewBehaviourScript : $$anonymous$$onoBehaviour {
 
     public float speed = 5f;
     // Use this for initialization
     void Start () {
     
     }
     
     // Update is called once per frame
     void Update () { 
 
 
 
         GetComponent<Rigidbody2D>().AddForce(transform.right * speed ,Force$$anonymous$$ode2D.Force);
     
     }
 }
 

// i changed it to add force since i whouldnt compile but i would there use velocity ins$$anonymous$$d thank you

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Answer by Piyush_Pandey · May 05, 2017 at 07:55 AM

Because transform.right returns a Vector3 not a float.

Use instead transform.right.x

A suggestion to optimize will be caching the components rigidbody and transform {if u are doing it on every frame}.

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