rigidbody.velocity when use Instantiate

Questions & Answers
1

Hi.

Can someone explain why the hazard is not moving? I am expecting that it will fall down with the velocity (0f, 0f, -20f), but it’s just rotating in one place. The problem is in the last 2 lines.

	public GameObject hazard;
	public Vector3 hazardPosition;

	void Start () {
		CreateWaves();
	}
	
	void CreateWaves () {
		
		Quaternion hazardRotation = Quaternion.identity; // no rotation
		Vector3 position = new Vector3(Random.Range(-hazardPosition.x, hazardPosition.x),hazardPosition.y,hazardPosition.z);
		
		hazard.rigidbody.velocity = new Vector3(0f, 0f, -20f);
		Instantiate (hazard, position, hazardRotation);
	}
2

Shouldent you spawn the hazard first? Like this:

public GameObject hazard;
         public Vector3 hazardPosition;
     
         void Start () {
             CreateWaves();
         }
         
         void CreateWaves () {
Vector3 position = new Vector3(Random.Range(-hazardPosition.x, hazardPosition.x),hazardPosition.y,hazardPosition.z);
             Instantiate (hazard, position, Quaternion.identity);
             
             hazard.rigidbody.velocity = new Vector3(0f, 0f, -20f);
             
         }