多个手指
问题描述:
同时拖动不同的对象我按照这个教程 https://www.youtube.com/watch?v=SrCUO46jcxk多个手指
多点触控,它的工作。并尝试用多个手指同时在每个对象上添加拖动功能。 这是我的按钮代码,我添加了一些代码,使它可以同时拖动每个对象,但它仅适用于单个对象。我试过所有相关的帖子和教程,但无法执行,请帮忙?
using System.Collections;
using UnityEngine;
public class Button : MonoBehaviour{
public Color defaultColour;
public Color selectedColour;
private Material mat;
private Vector3 screenPoint;
private Vector3 offset;
void Start(){
mat = GetComponent<Renderer>().material;
}
void OnTouchDown(){
mat.color = selectedColour;
Debug.Log ("Touch Down");
screenPoint = Camera.main.WorldToScreenPoint (transform.position);
offset = transform.position - Camera.main.ScreenToWorldPoint (new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenPoint.z));
}
void OnTouchUp(){
mat.color = defaultColour;
Debug.Log ("Touch Up");
}
void OnTouchStay(){
mat.color = selectedColour;
Debug.Log ("Touch Stay");
Vector3 curScreenPoint = new Vector3 (Input.mousePosition.x, Input.mousePosition.y, screenPoint.z);
Vector3 curPosition = Camera.main.ScreenToWorldPoint (curScreenPoint) + offset;
transform.position = curPosition;
}
void OnTouchExit(){
mat.color = defaultColour;
Debug.Log ("Touch Exit");
}
}
该代码可用于输入触控功能
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class TouchInput : MonoBehaviour {
public LayerMask touchInputMask;
private static List<GameObject> touchList = new List<GameObject>();
private GameObject[] touchesOld;
private RaycastHit hit;
void Update() {
#if UNITY_EDITOR
if(Input.GetMouseButton(0) || Input.GetMouseButtonDown(0) || Input.GetMouseButtonUp(0)){
touchesOld = new GameObject[touchList.Count];
touchList.CopyTo(touchesOld);
touchList.Clear();
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
if(Physics.Raycast(ray, out hit, touchInputMask)){
GameObject recipient = hit.transform.gameObject;
touchList.Add(recipient);
if (Input.GetMouseButtonDown(0)){
recipient.SendMessage("OnTouchDown",hit.point,SendMessageOptions.DontRequireReceiver);
}
if (Input.GetMouseButtonUp(0)){
recipient.SendMessage("OnTouchUp",hit.point,SendMessageOptions.DontRequireReceiver);
}
if (Input.GetMouseButton(0)){
recipient.SendMessage("OnTouchStay",hit.point,SendMessageOptions.DontRequireReceiver);
}
}
foreach (GameObject g in touchesOld){
if (!touchList.Contains(g)){
g.SendMessage("OnTouchExit",hit.point,SendMessageOptions.DontRequireReceiver);
}
}
}
#endif
if (Input.touchCount > 0){
touchesOld = new GameObject[touchList.Count];
touchList.CopyTo(touchesOld);
touchList.Clear();
foreach (Touch touch in Input.touches){
Ray ray = Camera.main.ScreenPointToRay (touch.position);
//RaycastHit hit;
if (Physics.Raycast(ray, out hit, touchInputMask)){
GameObject recipient = hit.transform.gameObject;
touchList.Add(recipient);
if (touch.phase == TouchPhase.Began){
recipient.SendMessage("OnTouchDown",hit.point,SendMessageOptions.DontRequireReceiver);
}
if (touch.phase == TouchPhase.Ended){
recipient.SendMessage("OnTouchUp",hit.point,SendMessageOptions.DontRequireReceiver);
}
if (touch.phase == TouchPhase.Stationary || touch.phase == TouchPhase.Moved){
recipient.SendMessage("OnTouchStay",hit.point,SendMessageOptions.DontRequireReceiver);
}
if (touch.phase == TouchPhase.Canceled){
recipient.SendMessage("OnTouchExit",hit.point,SendMessageOptions.DontRequireReceiver);
}
}
}
foreach (GameObject g in touchesOld){
if (!touchList.Contains(g)){
g.SendMessage("OnTouchExit",hit.point,SendMessageOptions.DontRequireReceiver);
}
}
}
}
}
答
现在终于完成这个过程中,我可以执行此过程有两种方式
-
使用touchScript库,它有丰富功能,我们可以一次拖动,旋转,翻译和缩放多个对象。 https://www.youtube.com/watch?v=HHLBJ1Ss2S0
注意:这是旧的视频,现在它改变了,但它几乎是相同的。 [TouchScript是免费资源商店用]
-
其他选项,附加下面的代码在空游戏物体或在相机中使用System.Collections中(添加标签层)
; using System.Collections.Generic; 使用UnityEngine;使用UnityEngine.UI的 ;
public struct objectst public Vector3 screenPoint; public Vector3 offset; }
公共类TOUCHINPUT:MonoBehaviour {
public LayerMask touchInputMask; private static List<GameObject> touchList = new List<GameObject>(); public static Dictionary<int,objectst> touchobjects = new Dictionary<int,objectst>(); private GameObject[] touchesOld; private RaycastHit hit; public Text Count, IndexLift; private Vector3 targetPos; void Update() { int nbTouches = Input.touchCount; if(nbTouches > 0) { nbTouches = 5; print(nbTouches + " touch(es) detected"); touchesOld = new GameObject[touchList.Count]; touchList.CopyTo(touchesOld); touchList.Clear(); for (int i = 0; i < nbTouches ; i++) { Touch touch = Input.GetTouch(i); print("Touch index " + touch.fingerId + " detected at position " + touch.position); Ray ray = Camera.main.ScreenPointToRay (touch.position); if (Physics.Raycast(ray, out hit, touchInputMask)){ GameObject recipient = hit.transform.gameObject; touchList.Add(recipient); //recipient.; if (touch.phase == TouchPhase.Began){ objectst tempobj = new objectst(); tempobj.screenPoint = Camera.main.WorldToScreenPoint (recipient.transform.position); tempobj.offset = recipient.transform.position - Camera.main.ScreenToWorldPoint (new Vector3 (touch.position.x, touch.position.y, tempobj.screenPoint.z)); touchobjects.Add(touch.fingerId,tempobj); } if (touch.phase == TouchPhase.Stationary || touch.phase == TouchPhase.Moved){ Vector3 curScreenPoint = new Vector3 (touch.position.x, touch.position.y, touchobjects[touch.fingerId].screenPoint.z); Vector3 curPosition = Camera.main.ScreenToWorldPoint (curScreenPoint) + touchobjects[touch.fingerId].offset; recipient.transform.position = curPosition; } if (touch.phase == TouchPhase.Ended){ Vector3 curScreenPoint = new Vector3 (touch.position.x, touch.position.y, touchobjects[touch.fingerId].screenPoint.z); Vector3 curPosition = Camera.main.ScreenToWorldPoint (curScreenPoint) - touchobjects[touch.fingerId].offset; recipient.transform.position = curPosition; } if (touch.phase == TouchPhase.Canceled){ } } } foreach (GameObject g in touchesOld){ if (!touchList.Contains(g)){ g.SendMessage("OnTouchExit",hit.point,SendMessageOptions.DontRequireReceiver); } } } }
}