Input.touches

説明

最後のフレーム間で全てのタッチ情報のオブジェクトリストを返します（読み取り専用） (一時的な変数を割り当てられます)

各エントリーは画面にタッチしている指の状態を表します。

	// Prints number of fingers touching the screen
	function Update () {
		var fingerCount = 0;
		for (var touch : Touch in Input.touches) {
			if (touch.phase != TouchPhase.Ended && touch.phase != TouchPhase.Canceled)
				fingerCount++;
		}
		if (fingerCount > 0)
			print ("User has " + fingerCount + " finger(s) touching the screen");
	}

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void Update() {
        int fingerCount = 0;
        foreach (Touch touch in Input.touches) {
            if (touch.phase != TouchPhase.Ended && touch.phase != TouchPhase.Canceled)
                fingerCount++;
            
        }
        if (fingerCount > 0)
            print("User has " + fingerCount + " finger(s) touching the screen");
        
    }
}