help with making bullet move toward the mouse pointer

hello guys, i am new at unity and java scripting, i found different solutions for this around here about how to do this but i do not get it.

Code (csharp):

1.  
2. if(Input.GetAxis("Fire_bullet") Time.time > rate_time)
3.     {
4.         rate_time = Time.time + rate;
5.         Instantiate(bullet_pre, Vector3(transform.position.x, transform.position.y,0), Quaternion.identity);
6.        
7.        
8.     }

the bullet comes out from the parent,
the on another script i have

Code (csharp):

1. function Update () {
2.     bull.Translate(Vector3(speed * Time.deltaTime, 0, 0));
3.     }

for the speed

how do i make the bullet come out towards the direction of the mouse pointer? thank you for your time

 

Code (csharp):

1. function Update () {
2.     var ray : Ray = Camera.main.ScreenPointToRay (Input.mousePosition); // Construct a ray from the current mouse coordinates
3.     bull.transform.lookAt(ray); //make the bullet look towards mousePosition on Update, and then translate with your original script
4.     bull.Translate(Vector3(speed * Time.deltaTime, 0, 0));
5. }

try this

 

No appropriate version of 'UnityEngine.Transform.LookAt' for the argument list '(UnityEngine.Ray)' was found.
i get this error :/

 

my bad
check this link out
http://answers.unity3d.com/questions/34701/need-help-with-making-player-look-at-mouse.html

 

I hate to be the stickler about this. And I know you say your new to it all. There is an entire reference to all of this:

http://docs.unity3d.com/Documentation/ScriptReference

In that you will find the reference to the Transform object:

http://docs.unity3d.com/Documentation/ScriptReference/Transform.html

In that transform, you will find a reference to the LookAt method:

http://docs.unity3d.com/Documentation/ScriptReference/Transform.LookAt.html

Notice.. that LookAt, is has some capitol letters.

Look at does not accept a Ray in one of its overloaded methods. It accepts a Transform or a Vector3.

This means that xxsur's code is actually incomplete. He gets the ray, but does nothing with it. (a ray is a point of origin and a direction, thats it)


So below is the code (with added code) to convert the ray coming from the mouse to a position in space relative to the bullet.

Code (csharp):

1.  
2.     function Update () {
3.         // Construct a ray from the current mouse coordinates
4.         var ray : Ray = Camera.main.ScreenPointToRay (Input.mousePosition);
5.        
6.         // capture the forward position of the bullet
7.         var lookAt : Vector3 = bull.transform.position + bull.transform.forward * 10;
8.        
9.         // create a plane in front of the bullet
10.         var plane : Plane = new Plane(bull.transform.forward, lookAt);
11.        
12.         // do a plane.Raycast from the mouse ray to the plane in front of the bullet
13.         var dist : float;
14.         if(plane.Raycast(ray, dist)){
15.             // if it hits, "bend" the bullet lookAt point towards that point.
16.             lookAt = Vector3.Lerp(lookAt, ray.GetPoint(dist), 5 * Time.deltaTime);
17.         }
18.        
19.         // assign the bullet's facing.
20.         bull.transform.LookAt(lookAt);
21.         bull.Translate(Vector3(speed * Time.deltaTime, 0, 0));
22.     }
23.