mouse/cursor control

im making a 2D side scrolling game and im running into some problems with the mouse


1. how do i use the

Code (csharp):

1.  Input.mouse.position

coordinates to have an object point at the mouse on the z-y plane


2. how do i force the cursor to a position on screen?? (like moving it to the center of the screen every-time you loose a life)


3.and how do i control the scroll wheel??

 

To point a 3D object at the mouse, do this:

Code (csharp):

1.  
2. var distanceFromCameraToPlayer = 0.00; // the distance in between the camera and the player in 3d space.
3. var objectToAim : GameObject; // our gun, I assume
4.  
5. function Update ()
6. {
7.     aimPoint = Camera.main.ScreenToWorldPoint(Vector3(Input.mousePosition.x, Input.mousePosition.y, distanceFromCameraToPlayer / Camera.main.farClipPlane)); // the point to aim at. It is on the same plane as the player and follows the mouse.
8.  
9.     objectToAim.transform.LookAt(aimPoint); // aim the object.
10. }
11.  

I am not sure you can move the cursor around. But Screen.lockCursor = true; yield; Screen.lockCursor = false; might center it.

To set up an input axis for the scroll wheel, go to the input manager and set an axis to: Type = Mouse Movement, Axis = 3rd Axis (Joysticks and Scroll Wheel).

 

yoggy i couldn't get that code to work, i put it in just how it was and then changed some things when it wasent working, i added the distance measurement because the zoom is always changing in my game so the camera distance is never the same, and i changed the .x mouse pos to .z ( although im not sure if i was supposed to) because left and right in my game is z


anywho heres what i changed it too

Code (csharp):

1. var objectToAim : GameObject;
2. var maincamera : Transform;
3. // our gun, I assume
4.  
5. function Update ()
6. {
7.    
8.    
9. var distanceFromCameraToPlayer =Vector3.Distance(maincamera.position,transform.position);
10.  
11. aimPoint = Camera.main.ScreenToWorldPoint(Vector3(Input.mousePosition.x, Input.mousePosition.y, distanceFromCameraToPlayer / Camera.main.farClipPlane));
12.  
13. objectToAim.transform.LookAt(aimPoint);
14. }
15.  

right now the z axis points at the camera and the gun, which is a particle system, shoots away from the camera


thanks for your help, this is pretty over my head

 

Updated Script:

Code (csharp):

1.  
2. // place this on the gun. The gun's z axis should point where it shoots and it's y axis should point at the camera
3.  
4. function Update ()
5. {
6.     screenMousePosWithDepth = Vector3(Input.mousePosition.x, Input.mousePosition.y, Camera.main.WorldToScreenPoint(transform.position).z);
7.     aimPoint = Camera.main.ScreenToWorldPoint(screenMousePosWithDepth);
8.     transform.rotation = Quaternion.LookRotation(aimPoint, Vector3.left);
9. }
10.  

And a simple scene to explain it's use:

 

sweet it works great, i really appreciate it dude