How to add force on an object in the direction in which the player is facing?

I'm using character controller so I'm using :

Code (CSharp):

1. private void OnControllerColliderHit(ControllerColliderHit hit)
2.     {
3.         if (hit.gameObject.GetComponent<Rigidbody>() != null)
4.             hit.gameObject.GetComponent<Rigidbody>().AddForce(Vector3.forward);
5.     }

But it's adding force only in certain direction, I've cans (cylinders), I want to make them fall in the direction I'm facing when I push them.

 

Use the player's .forward

Vector3.forward returns (0,0,1), that's forward relative to the world

 

I've tried it, not working.

 

Try harder. It'll work.

 

oh my god!... still not working.

 

What did you try?
Show us your new code

 

Could also do AddForce(Player.transform.forward)

 

Yes, this is working, thanks!

I just had to change Player.transform.forward to this.transform.forward, how is it different from Vector3.forward?

 

'new' was a typo (I didn't paste the code here, directly typed it), edited the question and fixed. transform.forward is working for me.

 

Answered it on the first post

 

True that, but performance shouldn't be a concern for him yet(assuming you're new to unity), he should mostly realize what does what and why

 

I used this:

Code (CSharp):

1. rb.AddRelativeForce(Vector3.forward);

It's not working.

 

Actually I'd appreciate it If I get any advice which leads to a more smooth and optimised game.

 

Maybe the force is just too weak?

 

Your project has the force acting the moving player itself, My project is a little different, here's the simplified version of my project, you can just open and click play, you'll notice the problem:

https://drive.google.com/drive/folders/1ZIUubTfUHlzOFX8yZ9wywWpN0WpYGcQs?usp=sharing

 

I've a force multiplier, I've tried different values, the force is acting but not in the direction I want.

 

You do know where global forward is, right?

 

(0,0,1), the blue arrow, Z-axis on global...?

 

Consider a cube with box collider, if it hits a cylinder with rigid body, the cylinder will fall, right (Given cylinder has small radius but big height)? If the cube is going south to north and hit cylinder the cylinder should naturally fall towards the north, if cube is going east to west the cylinder should fall towards west.

I just want the fall to happen like it would have happened as if both cube and cylinder have rigid body. But since using character controller doesn't allow rigid body I've to use method like OnControllerColliderHit() to make the fall natural.

 

Thanks for the suggestion to improve my code.

 

Can we add Relative Force to move a physics body in the same direction as it is in a canvas?

 

Thanks for your response sir. But in my case it's not working as expected.

_playerRectTransform_List[_playerActiveCount].GetComponent<Rigidbody2D>().AddRelativeForce(_touchDirection * _playerLaunchForce, ForceMode2D.Impulse);

Here, _touchDirection is a Vector2 and the player does'nt actually rotate but the parent of the player rotates.

 

this is working for me! thanks a lot!

 

Hello sir,
It will be great if you can please look into my post:
https://forum.unity.com/threads/add-force-and-rotation-to-an-object-in-one-direction.1043524/
Which is maybe similar situation as this thred.
Thanks

 

For me this is the answer to the original question. After using .AddRelativeForce my objects move 'forward' realtive to them, not the world. Thank you MelvMay.

 

i know its an old post, hope u still work in Unity, but thank u
i'm developing a top-down spaceship shooter, and the only thing that worked for me is

Code (CSharp):

1. rigidbody2d.AddRelativeForce(Vector2.up * movementSpeed * Time.deltaTime);

I'm using my mouse as a pointer for direction

 

thank you!
may you never run out of cell battery while in the bathroom!

 

You helped me sooooooooooooooooooooooo much!!!! Thx
PS: i know i didn't ask but thx u

 

The name 'hit' does not exist in the current context.

 

ok, im using addrelativeforce for movement, how do i make the player face the direction they are moving like a 3rd person character controller, ive tried multiple sources but so far none have worked with addforce, even this forum ended the same way, dont know why that is

Code (CSharp):

1. r.AddRelativeForce(new Vector3(x * s, 0, z * s), ForceMode.VelocityChange);
2.         r.velocity = new Vector3(Mathf.Clamp(x, 0, x * 40), Mathf.Clamp(r.velocity.y, r.velocity.y, 19.61f), Mathf.Clamp(z, 0, z * 40));

EDIT SOLVED
to rotate your player to the direction of your movement with addforce you need to use

Code (CSharp):

1. r.transform.Rotate(0, x, 0);

this way, on the y axis (spinning flat on the ground) your horizontal input(in my case its named "x") will spin you in a big circle, use animations to turn your character(such as the ratchet and clank movement) and scene view or an upper view on camera to properly adjust
now you wont be able to spin in place by code, but animation should be more than enough and either way, if it doesnt help, this code may be your best bet to start with