ARKit平面识别脚本控制

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.XR.iOS;
using UnityEngine.UI;

public class arCtrl : MonoBehaviour {

	public Toggle localPos;//确认识别位置
    public GameObject localPosition;

    public GameObject scan;//识别地面提示
	public Camera cam;
	public float findingSquareDist = 0.5f;

	public Transform m_HitTransform;
	public float maxRayDistance = 30.0f;
	public LayerMask collisionLayer = 1 << 10;  //ARKitPlane layer

	bool HitTestWithResultType (ARPoint point, ARHitTestResultType resultTypes)
	{
		List<ARHitTestResult> hitResults = UnityARSessionNativeInterface.GetARSessionNativeInterface ().HitTest (point, resultTypes);
		if (hitResults.Count > 0) {
			foreach (var hitResult in hitResults) {
				Debug.Log ("Got hit!");
				m_HitTransform.position = UnityARMatrixOps.GetPosition (hitResult.worldTransform);
				m_HitTransform.rotation = UnityARMatrixOps.GetRotation (hitResult.worldTransform);
                //识别到地面，关闭扫描提示并打开确认位置按钮
                scan.SetActive(false);
                localPosition.SetActive(true);

                Debug.Log (string.Format ("x:{0:0.######} y:{1:0.######} z:{2:0.######}", m_HitTransform.position.x, m_HitTransform.position.y, m_HitTransform.position.z));
				return true;
			}
		}
		return false;
	}

	// Update is called once per frame
	void Update () {

		#if UNITY_EDITOR   //we will only use this script on the editor side, though there is nothing that would prevent it from working on device
		if (Input.GetMouseButtonDown (0)) {
		Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
		RaycastHit hit;
		//if (Physics.Raycast (transform.position, fwd, out hit, 10f)) {//这里的“10”是射线的最大距离
		//we'll try to hit one of the plane collider gameobjects that were generated by the plugin
		//effectively similar to calling HitTest with ARHitTestResultType.ARHitTestResultTypeExistingPlaneUsingExtent
		if (Physics.Raycast (ray, out hit, maxRayDistance, collisionLayer)) {
		//we're going to get the position from the contact point
		m_HitTransform.position = hit.point;
		Debug.Log (string.Format ("x:{0:0.######} y:{1:0.######} z:{2:0.######}", m_HitTransform.position.x, m_HitTransform.position.y, m_HitTransform.position.z));

		//and the rotation from the transform of the plane collider
		m_HitTransform.rotation = hit.transform.rotation;
		}
		}
		#else
		if ( m_HitTransform != null)
		{
			if(localPos.isOn == true){
			//射线检测
			//RaycastHit hits;
			//Vector3 fwd = cam.transform.TransformDirection(Vector3.forward);//创建一个射线的方向
			//if (Physics.Raycast (cam.transform.position, fwd, out hits, 10f)){
			Vector3 center = new Vector3(Screen.width/2, Screen.height/2, findingSquareDist);
			var screenPosition = Camera.main.ScreenToViewportPoint(center);	
			ARPoint point = new ARPoint {
				x = screenPosition.x,
				y = screenPosition.y
			};

			// prioritize reults types
			ARHitTestResultType[] resultTypes = {
				ARHitTestResultType.ARHitTestResultTypeExistingPlaneUsingExtent, 
				// if you want to use infinite planes use this:
				//ARHitTestResultType.ARHitTestResultTypeExistingPlane,
				ARHitTestResultType.ARHitTestResultTypeHorizontalPlane, 
				ARHitTestResultType.ARHitTestResultTypeFeaturePoint
			}; 

			foreach (ARHitTestResultType resultType in resultTypes)
			{
				if (HitTestWithResultType (point, resultType))
				{
					return;
				}
				}
			}else{
				return;
				}
			//}

			/*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
				};

				// prioritize reults types
				ARHitTestResultType[] resultTypes = {
					ARHitTestResultType.ARHitTestResultTypeExistingPlaneUsingExtent, 
					// if you want to use infinite planes use this:
					//ARHitTestResultType.ARHitTestResultTypeExistingPlane,
					ARHitTestResultType.ARHitTestResultTypeHorizontalPlane, 
					ARHitTestResultType.ARHitTestResultTypeFeaturePoint
				}; 

				foreach (ARHitTestResultType resultType in resultTypes)
				{
					if (HitTestWithResultType (point, resultType))
					{
						return;
					}
				}
			}*/
		}
		#endif

	}
}