Input.GetTouch

static function GetTouch (index : int) : Touch

Description

Returns object representing status of a specific touch. (Does not allocate temporary variables)

JavaScript

// Moves object according to finger movement on the screen

var speed : float = 0.1;
function Update () {
    if (Input.touchCount > 0 && 
      Input.GetTouch(0).phase == TouchPhase.Moved) {
    
        // Get movement of the finger since last frame
        var touchDeltaPosition:Vector2 = Input.GetTouch(0).deltaPosition;
        
        // Move object across XY plane
        transform.Translate (-touchDeltaPosition.x * speed, 
                    -touchDeltaPosition.y * speed, 0);
    }
}

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    public float speed = 0.1F;
    void Update() {
        if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Moved) {
            Vector2 touchDeltaPosition = Input.GetTouch(0).deltaPosition;
            transform.Translate(-touchDeltaPosition.x * speed, -touchDeltaPosition.y * speed, 0);
        }
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    public speed as single = 0.1F

    def Update():
        if (Input.touchCount > 0) and (Input.GetTouch(0).phase == TouchPhase.Moved):
            touchDeltaPosition as Vector2 = Input.GetTouch(0).deltaPosition
            transform.Translate(((-touchDeltaPosition.x) * speed), ((-touchDeltaPosition.y) * speed), 0)

Another Example:

JavaScript

// Instantiates a projectile whenever the user taps on the screen

var projectile : GameObject;
function Update () {
    for (var i = 0; i < Input.touchCount; ++i) {
        if (Input.GetTouch(i).phase == TouchPhase.Began) {
            clone = Instantiate (projectile, transform.position, transform.rotation);
        }
    }
}

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    public GameObject projectile;
    void Update() {
        int i = 0;
        while (i < Input.touchCount) {
            if (Input.GetTouch(i).phase == TouchPhase.Began)
                clone = Instantiate(projectile, transform.position, transform.rotation) as GameObject;
            
            ++i;
        }
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    public projectile as GameObject

    def Update():
        i as int = 0
        while i < Input.touchCount:
            if Input.GetTouch(i).phase == TouchPhase.Began:
                clone = (Instantiate(projectile, transform.position, transform.rotation) as GameObject)
            ++i

JavaScript

// Shoot a ray whenever the user taps on the screen
var particle : GameObject;
function Update () {
    for (var i = 0; i < Input.touchCount; ++i) {
        if (Input.GetTouch(i).phase == TouchPhase.Began) {
            // Construct a ray from the current touch coordinates
            var ray = Camera.main.ScreenPointToRay (Input.GetTouch(i).position);
            if (Physics.Raycast (ray)) {
                // Create a particle if hit
                Instantiate (particle, transform.position, transform.rotation);
            }
        }
    }
}

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    public GameObject particle;
    void Update() {
        int i = 0;
        while (i < Input.touchCount) {
            if (Input.GetTouch(i).phase == TouchPhase.Began) {
                Ray ray = Camera.main.ScreenPointToRay(Input.GetTouch(i).position);
                if (Physics.Raycast(ray))
                    Instantiate(particle, transform.position, transform.rotation) as GameObject;
                
            }
            ++i;
        }
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    public particle as GameObject

    def Update():
        i as int = 0
        while i < Input.touchCount:
            if Input.GetTouch(i).phase == TouchPhase.Began:
                ray as Ray = Camera.main.ScreenPointToRay(Input.GetTouch(i).position)
                if Physics.Raycast(ray):
                    (Instantiate(particle, transform.position, transform.rotation) as GameObject)
            ++i