ARKit--手势控制GameObj移动及缩放

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这里写图片描述
step 1：
打开unity
导入ARpackage，选择一个AR场景open
创建c#脚本
创建一个GameObject或者使用现有的将要操作的obj

step 2：
将下面脚本拖到GameObject，或Gameobj父类上
share c# code

using System.Collections;using System.Collections.Generic;using UnityEngine;using UnityEngine.XR.iOS;public class MuOuContoller : MonoBehaviour {    public Transform MuouObj;    private Touch oldTouch1;    private Touch oldTouch2;    // Use this for initialization    void Start () {    }    // Update is called once per frame    void Update()    {        if (Input.touchCount > 0 && MuouObj != null)        {            if(Input.touchCount == 1) {                var touch = Input.GetTouch(0);                if (touch.phase == TouchPhase.Began || touch.phase == TouchPhase.Moved)                {                    var screenPosition = Camera.main.ScreenToViewportPoint(touch.position);                    ARPoint point = new ARPoint                    {                        x = screenPosition.x,                        y = screenPosition.y                    };                    ARHitTestResultType[] resultTypes = {                        ARHitTestResultType.ARHitTestResultTypeExistingPlaneUsingExtent,                        ARHitTestResultType.ARHitTestResultTypeHorizontalPlane,                        ARHitTestResultType.ARHitTestResultTypeFeaturePoint                    };                    foreach (ARHitTestResultType resultType in resultTypes)                    {                        if (HitTestWithResultType(point, resultType))                        {                            return;                        }                    }                }            }            Touch newTouch1 = Input.GetTouch(0);            Touch newTouch2 = Input.GetTouch(1);            if (newTouch2.phase == TouchPhase.Began)            {                oldTouch1 = newTouch1;                oldTouch2 = newTouch2;                return;            }            float oldDistance = Vector2.Distance(oldTouch1.position, oldTouch2.position);            float newDistance = Vector2.Distance(newTouch1.position, newTouch2.position);            float offset = newDistance - oldDistance;            float scaleFactor = offset / 100f;            Vector3 localScale = transform.localScale;            Vector3 scale = new Vector3(localScale.x + scaleFactor,                                        localScale.y + scaleFactor,                                        localScale.z + scaleFactor);            if (scale.x > 0.5f && scale.y > 0.5f && scale.z > 0.5f)            {                transform.localScale = scale;            }            oldTouch1 = newTouch1;            oldTouch2 = newTouch2;        }    }    bool HitTestWithResultType(ARPoint point, ARHitTestResultType resultTypes)    {        List<ARHitTestResult> hitResults = UnityARSessionNativeInterface.GetARSessionNativeInterface().HitTest(point, resultTypes);        if (hitResults.Count > 0)        {            foreach (var hitResult in hitResults)            {                MuouObj.position = UnityARMatrixOps.GetPosition(hitResult.worldTransform);                MuouObj.rotation = UnityARMatrixOps.GetRotation(hitResult.worldTransform);                MuouObj.transform.LookAt(new Vector3(Camera.main.transform.position.x, MuouObj.transform.position.y, Camera.main.transform.position.z));                return true;            }        }        return false;    }}

将public出去的对象位置拖入要操作的对象

step3：
导出iOS版本

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