2D how to make a sprite follow the mouse position #c

Questions & Answers
1

I’ve started programming with Unity not long ago and I have a noob question:

The sprite should follow the mouse and should have the same position all the time. When I first try writing the code I came across a little problem: The sprite moves outside the camera area, although the mouse is inside.

In the game I’m programming the mouse should be able to drag an drop object from one point to another. Simiar to a dress-up game.

Thanks for reading.

This is my code:

using UnityEngine;
using System.Collections;

public class followTheMouse : MonoBehaviour {

Rigidbody2D rigid;

// Use this for initialization
void Start () {

    rigid = GetComponent<Rigidbody2D> ();

}

// Update is called once per frame
void Update () {

    float mouseX = Input.mousePosition.x;
float mouseY = Input.mousePosition.y;
Vector2 followthecursor = new Vector2 (mouseX, mouseY);

    rigid.MovePosition ((Vector2)transform.position +(Vector2)followthecursor);

}

}

2

You will want to use Camera.ScreenToWorldPoint to convert the mouse position to world coordinates.

3

void Update () {
// for 2D game
Vector3 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
mousePos .z = 0;
speed = 150;
transform.position = Vector3.Lerp(transform.position, mousePos , speed * Time.deltaTime);
}