2D Sprite Follow Mouse

Unity Engine
1

Hello,

I already looked around to see if there was any post about this question. All I found we’re (2D Sprite Angle, Follow In A Line, etc…) questions that was not for my topic. I am wondering how to make a 2D sprite follow my mouse cursor. I think it has something to do with “transform.position”, but I don’t know. I also, use c# for my coding.

Thanks.

2

Basically you’re going to want to sample the mouse position and then move your object towards it. I think the following should work.

This code should grab the mouse position and store it in a Vector3 called positionToMoveTo. You need to access the camera to convert the camera view point to the point in the world. I’m also setting Z to 0 since we’re using 2D, but you could use whatever you want. You’d probably want to use the same Z as the object that’s following, so it doesn’t change.

Vector3 positionToMoveTo = theCamera.ScreenToWorldPoint(Input.mousePosition);
positionToMoveTo.z = 0;

Here’s code to move an object called “objectToMove” towards a Vector3 called positionToMoveTo at a speed moveSpeed.

objectToMove.transform.position = Vector3.MoveTowards(objectToMove.transform.position, positionToMoveTo, moveSpeed * Time.deltaTime);
1 Like
3

Thank you. I typed all the code in and I received error.

using UnityEngine;
using System.Collections;

public class MouseMove : MonoBehaviour {

    public Camera myCamera;
    public Sprite mySprite;
    public float moveSpeed = 2.0f;

    // Use this for initialization
    void Start () {
   
    }
   
    // Update is called once per frame
    void Update () {
        Vector3 positionMoveTo = myCamera.ScreenToWorldPoint (Input.mousePosition);
        positionMoveTo.z = 0;
        mySprite.transform.position = Vector3.MoveTowards (mySprite.transform.position, positionMoveTo, moveSpeed * Time.deltaTime);
    }
}

Then in the console it says:

4

Sprite doesn’t have a transform member because it is neither a game object nor a component. It is just a wrapper for a texture. Use just “transform.position” to move the current game object.

1 Like
5

Thank you! I had my camera’s projection on “perspective”, which made the sprite not move. Is there anyway to make it move on “perspective”? If not, it’s not big deal anyways.