how to: Velocity or addForce to 2D (Instantiated?) Object

Questions & Answers
1

I’d like any easy script with

public GameObject yourObject;

or

public Rigidbody2D yourObject;

to add my prefab which is a GameObject with a sprite renderer, if needed also a Rigidbody2D (Or you have a better idea?)

I want to shoot this prefab everytime i press my button “m_AttackAxisName” in direction of my mouse position.

All i need is a script for velocity or to addForce on a prefab ( so probably have to instantiate? )

Dont forget 2D and compatible with the API of the newest Unity 5.3…

Its ok if you have a script which does not go to mouse position direction, if you got a good working one i could do that alone.

I already tried online solutions but i never can add force or do velocity to INSTANTIATED objects ;(

2

@Miggarapo

Lets suppose you have a gun and you want to shoot a bullet prefab from it

GameObject bulletInstance = Instantiate (bulletPrfab, gun.transform.position, Quaternion.Euler (new Vector3 (0, 0, 0))) as GameObject;

This creates a bulletPrefab instance as a GameObject (at gun.transform.position). GameObjects can have components added to them, like this:

Rigidbody2D rigidBody = bulletInstance.AddComponent<Rigidbody2D>();

or if the bulletPrefab already hace a Rigidbody2D then you can get it like this

Rigidbody2D rigidBody = bulletInstance.GetComponent<Rigidbody2D>();

You can then play with the rigidBody all you like.

rigidBody.AddForce(new Vector2(10.0f, 0f));