我有两个对象。关键是我需要上下移动对象(按住并拖动),同时我还需要独立移动其他对象(按住并拖动)。像这样:Example
搜索互联网后,我发现了一个小脚本,但一次只能触摸一次,并且只能拖动一个对象。另外,如果我用第二根手指触摸,则该对象将其位置更改为第二根手指的位置:
public class Move : MonoBehaviour {
private Vector3 offset;
void OnMouseDown() {
offset = gameObject.transform.position - Camera.main.ScreenToWorldPoint(new Vector3(-2.527f, Input.mousePosition.y));
}
void OnMouseDrag() {
Vector3 curScreenPoint = new Vector3(-2.527f, Input.mousePosition.y);
Vector3 curPosition = Camera.main.ScreenToWorldPoint(curScreenPoint) + offset;
transform.position = curPosition;
}
}
我只是不明白如何使两个对象同时拖放。我是团结的新手,老实说我在控制器方面遇到问题
对于触摸屏,建议您使用Touch而不是鼠标事件。触摸类同时支持多个触摸以及一些有用的信息,例如Touch.phase(开始,移动,固定等)。我已经编写了一个脚本,您可以将其附加到带有“可拖动”标签的多个对象上,从而使对象独立移动。拖放使用一个手指来放置otherObj时应移动的另一个对象,它应该可以工作。此版本仅适用于2个obj。
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Serialization;
public class PlayerActionHandler : MonoBehaviour
{
private Camera _cam;
public bool beingDragged;
public Vector3 offset;
public Vector3 currPos;
public int fingerIndex;
public GameObject otherObj;
// Start is called before the first frame update
void Start()
{
_cam = Camera.main;
}
// Update is called once per frame
void Update()
{
//ONLY WORKS FOR 2 OBJECTS
if (Input.touchCount == 1 && Input.GetTouch(0).phase == TouchPhase.Began)
{
var raycast = _cam.ScreenPointToRay(Input.GetTouch(0).position);
RaycastHit hit;
if (Physics.Raycast(raycast, out hit))
{
//use this tag if you want only chosen objects to be draggable
if (hit.transform.CompareTag("Draggable"))
{
if(hit.transform.name == name)
{
//set being dragged and finger index so we can move the object
beingDragged = true;
offset = gameObject.transform.position - _cam.ScreenToWorldPoint(Input.GetTouch(0).position);
offset = new Vector3(offset.x, offset.y, 0);
fingerIndex = 0;
}
}
}
}else if (Input.touchCount == 1 && beingDragged)
{
otherObj.transform.SetParent(transform);
if (Input.GetTouch(fingerIndex).phase == TouchPhase.Moved ){
Vector3 pos = _cam.ScreenToWorldPoint(Input.GetTouch(fingerIndex).position);
currPos = new Vector3(pos.x, pos.y,0) + offset;
transform.position = currPos;
}
}
//ONLY WORKS FOR 2 OBJECTS_END
else if (beingDragged && Input.touchCount > 1)
{
//We tie each finger to an object so the object only moves when tied finger moves
if (Input.GetTouch(fingerIndex).phase == TouchPhase.Moved ){
Vector3 pos = _cam.ScreenToWorldPoint(Input.GetTouch(fingerIndex).position);
currPos = new Vector3(pos.x, pos.y,0) + offset;
transform.position = currPos;
}
}else if (Input.touchCount > 0)
{
for (var i = 0; i < Input.touchCount; i++)
{
//We find the fingers which just touched the screen
if(Input.GetTouch(i).phase == TouchPhase.Began)
{
var raycast = _cam.ScreenPointToRay(Input.GetTouch(i).position);
RaycastHit hit;
if (Physics.Raycast(raycast, out hit))
{
//use this tag if you want only chosen objects to be draggable
if (hit.transform.CompareTag("Draggable"))
{
if(hit.transform.name == name)
{
//set being dragged and finger index so we can move the object
beingDragged = true;
offset = gameObject.transform.position - _cam.ScreenToWorldPoint(Input.GetTouch(i).position);
offset = new Vector3(offset.x, offset.y, 0);
fingerIndex = i;
}
}
}
}
}
}else if (Input.touchCount == 0)
{
//if all fingers are lifted no object is being dragged
beingDragged = false;
}
}
}