Input.GetTouch

Description

返回表示特定触摸状态的对象。（不分配临时变量）。

GetTouch 返回一个 Touch 结构。 例如，Touch 可以随压力返回。

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    public float speed = 0.1F;
    void Update()
    {
        if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Moved)
        {
            // Get movement of the finger since last frame
            Vector2 touchDeltaPosition = Input.GetTouch(0).deltaPosition;

            // Move object across XY plane
            transform.Translate(-touchDeltaPosition.x * speed, -touchDeltaPosition.y * speed, 0);
        }
    }
}

另一个示例：

using UnityEngine;
using System.Collections;

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

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    public GameObject particle;
    void Update()
    {
        for (int i = 0; i < Input.touchCount; ++i)
        {
            if (Input.GetTouch(i).phase == TouchPhase.Began)
            {
                // Construct a ray from the current touch coordinates
                Ray ray = Camera.main.ScreenPointToRay(Input.GetTouch(i).position);
                // Create a particle if hit
                if (Physics.Raycast(ray))
                    Instantiate(particle, transform.position, transform.rotation);
            }
        }
    }
}