Touch Controls (721288)

Unity Engine
1

Hello,

I was wondering how I could convert this script into using touch controls on Android or IOS.

Would it be as easy as just replacing Input.getMouseButttonDown or Input.mousePosition with GetTouch?

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

public class DragObject : MonoBehaviour
{
    [SerializeField] float moveSpeed;
    [SerializeField] float saveDelay = 0.2f;
                     float power = 5f;
   
    Rigidbody2D rb;

    Vector2 dir;
    Vector2 lastPosition;

    DestroyObject inAir;
   

    bool nextSave = true;
    bool canBePushed;
    private bool following;
   


    // Use this for initialization
    void Start()
    {
        following = false;
        lastPosition = transform.position;
        rb = GetComponent<Rigidbody2D>();

        inAir = FindObjectOfType<DestroyObject>();    
    }

  

    // Update is called once per frame
    void Update()
    {
        MouseClicksToDrag();
    }


    //drags objects
    private void MouseClicksToDrag()
        //detects if object has mouse clicked on it
    {
        if (Input.GetMouseButtonDown(0))
        {
            RaycastHit2D hit = Physics2D.Raycast(Camera.main.ScreenToWorldPoint(Input.mousePosition), Vector3.forward);

            if (hit.collider != null && hit.collider.gameObject == this.gameObject)
            {
               
                following = true; 
            }
        }

        // detects if object has been released to add forces
        if (Input.GetMouseButtonUp(0) && following)
        {
            following = false;
            dir = (Vector2)transform.position - lastPosition;
           
            canBePushed = true;
           
        }

        if (following)
        {
            transform.position = Vector2.Lerp(transform.position, Camera.main.ScreenToWorldPoint(Input.mousePosition), moveSpeed);
        }

        if (nextSave)
        {
            StartCoroutine("SavePosition");
        }
       
    }

    void FixedUpdate()
    {
            IfCanBePushed();     
    }

  
    private void IfCanBePushed()
    {
       
        {
            if (!inAir.IsFallingTrue())
            {
               
                if (canBePushed)
                {
                   
                    canBePushed = false;
                    rb.velocity = dir * power;
                }

            }
           
        }  


    }

    IEnumerator SavePosition()
    {
        nextSave = false;
        lastPosition = transform.position;
        yield return new WaitForSeconds(saveDelay);
        nextSave = true;
    }

  



}
2

I don’t have any device to test, also you can try to make it working :smile: Just as example for touch input

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

public class DragObject : MonoBehaviour
{
    [SerializeField] float moveSpeed;
    [SerializeField] float saveDelay = 0.2f;
    float power = 5f;

    Rigidbody2D rb;

    Vector2 dir;
    Vector2 lastPosition;

    DestroyObject inAir;


    bool nextSave = true;
    bool canBePushed;
    private bool following;

    bool isTouched = false, endTouch = false;
    Vector3 touchPosition;
    int touchId;


    // Use this for initialization
    void Start()
    {
        following = false;
        lastPosition = transform.position;
        rb = GetComponent<Rigidbody2D>();

        inAir = FindObjectOfType<DestroyObject>();
    }



    // Update is called once per frame
    void Update()
    {
        //here you can try to use Input.GetTouch(0), "for loop" is for multitouch
        //maybe you should use id of the touch too, int touchID = touch.fingerId;
        //the id can be needed by check if the needed touch was moved
        //like if (touch.fingerId == touchId) do something
        for (int i = 0; i < Input.touchCount; i++)
        {
            Touch touch = Input.GetTouch(i);
            if (touch.phase == TouchPhase.Began)
            {
                isTouched = true;
                touchPosition = touch.position;
                //touchId = touch.fingerId;
            }

            if (touch.phase == TouchPhase.Ended)
            {
                endTouch = true;
            }

            if (touch.phase == TouchPhase.Moved)
            {
                //if (touch.fingerId == touchId)
                touchPosition = touch.position;
            }
        }

        MouseClicksToDrag();
    }


    //drags objects
    private void MouseClicksToDrag()
    //detects if object has mouse clicked on it
    {
        //if (Input.GetMouseButtonDown(0))
        if (isTouched)
        {
            isTouched = false;
            //RaycastHit2D hit = Physics2D.Raycast(Camera.main.ScreenToWorldPoint(Input.mousePosition), Vector3.forward);
            RaycastHit2D hit = Physics2D.Raycast(Camera.main.ScreenToWorldPoint(touchPosition), Vector3.forward);
            if (hit.collider != null && hit.collider.gameObject == this.gameObject)
            {

                following = true;
            }
        }

        // detects if object has been released to add forces
        //if (Input.GetMouseButtonUp(0) && following)
        if (endTouch && following)
        {
            endTouch = false;

            following = false;
            dir = (Vector2)transform.position - lastPosition;

            canBePushed = true;

        }

        if (following)
        {
            //transform.position = Vector2.Lerp(transform.position, Camera.main.ScreenToWorldPoint(Input.mousePosition), moveSpeed);
            transform.position = Vector2.Lerp(transform.position, Camera.main.ScreenToWorldPoint(touchPosition), moveSpeed);
        }

        if (nextSave)
        {
            StartCoroutine("SavePosition");
        }

    }

    void FixedUpdate()
    {
        IfCanBePushed();
    }


    private void IfCanBePushed()
    {

        {
            if (!inAir.IsFallingTrue())
            {

                if (canBePushed)
                {

                    canBePushed = false;
                    rb.velocity = dir * power;
                }

            }

        }


    }

    IEnumerator SavePosition()
    {
        nextSave = false;
        lastPosition = transform.position;
        yield return new WaitForSeconds(saveDelay);
        nextSave = true;
    }
}
3

thank you very much, I will try to test this out soon and let you know if this works!