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《转》Unity Android/IOS 多点触摸实例

 

Unity中获取到的坐标是左下角为(0,0)

但是绘画的时候是以左上角为(0,0)

所以直接在获取到的坐标上画图是不行的……

 

?
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using UnityEngine;
using System.Collections;
 
public class MultiTouch : MonoBehaviour {
     
     
    public Texture2D imageBG;
    public Texture2D imageItem;
     
     
    void OnGUI()
    {
        GUI.DrawTexture(new Rect(0,0,640,960),imageBG);
         
        int touchCount=Input.touchCount;
        for(int i=0;i<touchCount;i++)
        {
            Vector2 touchposition= Input.GetTouch(i).position;
            int x=(int)touchposition.x;
            int y=(int)touchposition.y;
             
            GUI.DrawTexture(new Rect(x,960-y,120,120),imageItem);
            GUI.Label(new Rect(x,960-y,120,120),"Touch position is "+touchposition);
        }
    }
     
    // Use this for initialization
    void Start () {
     
    }
 
     
    // Update is called once per frame
    void Update () {
     
    }
}

  

把代码拖到MainCamera上,然后把两张图片拖到imageBG、imageItem赋值。编译成APK。放到手机上就看到效果啦。这个是一个手五点触控的图片。