How To Drag and Drop a 2D Object

Learn how to drag a 2D object with the mouse. In this tutorial we will create at general drag and drop script you can use on any sprite. 

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The DragAndDrop script:

/*
   .-------.                             .--.    .-------.     .--.            .--.     .--.        
   |       |--.--.--------.-----.-----.--|  |    |_     _|--.--|  |_.-----.----|__|---.-|  |-----.
   |   -   |_   _|        |  _  |     |  _  |      |   | |  |  |   _|  _  |   _|  |  _  |  |__ --|
   |_______|__.__|__|__|__|_____|__|__|_____|      |___| |_____|____|_____|__| |__|___._|__|_____|
   © 2019 OXMOND / www.oxmond.com 
*/

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class DragAndDrop : MonoBehaviour
{

    private bool isDragging;

    public void OnMouseDown()
    {
        isDragging = true;
    }

    public void OnMouseUp()
    {
        isDragging = false;
    }

    void Update()
    {
        if (isDragging) {
            Vector2 mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition) - transform.position;
            transform.Translate(mousePosition);
        }
    }
}