Help with move script

Hello, I'm new at C# but understand basics and maybe even intermediate, my questions is the following:
Im working on a 2d,
Why is it that when I use Vector3 on the blue Vector3 area of the script, my object eases into the mouse
position??

On the other hand if I change to Vector2 like the summary says it will no longer ease??

Its not causing any trouble but I always like to know why things happen.
Could it be the z property of the Vector3 that is making the difference??
Tested and let me know.

thanks

Code (csharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4.  
5. public class MovementTowardsMouseClick : MonoBehaviour {
6.  
7.     public float speed; //For setting the speed
8.     private Vector3 mousePosition; //For getting the mouse position
9.     private Vector3 thisObject; //For getting this objects position
10.  
11.     void Update()
12.     {
13.         //store the current position
14.         thisObject = this.transform.position;
15.  
16.         //if the right mouse is pressed
17.         if (Input.GetMouseButton(0))
18.         {
19.             //store the mouse position
20.             mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
21.          
22.         }
23.  
24.         //
25.         // Summary:
26.         // //
27.         //  Note that if you change the Vector3 type to Vector2 and comment out
28.         //  "thisObject.z = this.transform.position.z" line the object will no longer
29.         // ease its way in to the mouse position
30.         // //
31.  
32.         thisObject = Vector3.MoveTowards(thisObject, mousePosition, speed * Time.deltaTime);
33.         hisObject.z = this.transform.position.z;
34.         this.transform.position = thisObject;
35.      
36.  
37.     }
38. }

 

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Your guess is probably correct.

Try outputting the Vector2's that you're using, and the Vector3's you're using, and compare the numbers:

Code (csharp):

1. Debug.Log("Moving from "+thisObject+" to "+mousePosition);

If the Z property is the difference, you'll see a big difference between the last number of each of those outputs.

 

Thanks for your quick response I will try that.