Unity 门窗吸附功能

门窗吸附功能，是一个没有难度的小功能，但是如果想要实现的话，在脑子里猛一下却想不起来怎么实现，今天正好实现这个功能，所以记录一下。
分为两个脚本，分别为控制门移动的脚本，墙检测的脚本。
具体功能如下：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class DoorAtt : MonoBehaviour
{public static bool isMoveModelX = true;public static bool isMoveModelZ = true;public static bool isMove = false;private Vector3 prePos;private Vector3 curPos;private Vector3 intervalPos;private void Update(){if (isMove){var vpos = Camera.main.WorldToScreenPoint(transform.position);var vmouse = Input.mousePosition;vmouse.z = vpos.z;curPos = Camera.main.ScreenToWorldPoint(vmouse);intervalPos = curPos - prePos;transform.position += new Vector3(isMoveModelX ? intervalPos.x : 0, 0, isMoveModelZ ? intervalPos.z : 0);prePos = curPos;}}private void OnMouseDown(){isMove = !isMove;var vpos = Camera.main.WorldToScreenPoint(transform.position);var vmouse = Input.mousePosition;vmouse.z = vpos.z;prePos = Camera.main.ScreenToWorldPoint(vmouse);}
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class WallAtt : MonoBehaviour
{private List<string> interactiveTag = new List<string>(); //可以呗吸附的物体的tagprivate Transform curModel = null; //目前被吸附的物体private Vector3 dis;private void Start(){interactiveTag.Add("Door");var rigibody = transform.GetComponent<Rigidbody>();if (rigibody == null){rigibody = gameObject.AddComponent<Rigidbody>();}rigibody.isKinematic = true;var vcollider = gameObject.AddComponent<BoxCollider>();if (vcollider != null){vcollider.isTrigger = true;}}private void Update(){if (curModel != null){if (DoorAtt.isMove){if (Input.GetMouseButtonDown(0) || Input.GetMouseButtonDown(1)){curModel = null;DoorAtt.isMoveModelX = true;DoorAtt.isMoveModelZ = true;return;}var vModelPos = Camera.main.WorldToScreenPoint(curModel.position);var vdis = vModelPos - (Input.mousePosition + dis);if (Mathf.Abs(vdis.x) > 50 || Mathf.Abs(vdis.y) > 50){Vector3 vePos = Camera.main.WorldToScreenPoint(curModel.position);Vector3 mosPos = Input.mousePosition;mosPos.z = vePos.z;Vector3 WorldPos = Camera.main.ScreenToWorldPoint(mosPos);var vNewPos = new Vector3(WorldPos.x, curModel.position.y, WorldPos.z);curModel.transform.position = vNewPos;DoorAtt.isMoveModelX = true;DoorAtt.isMoveModelZ = true;}}else{curModel = null;}}}private void OnTriggerEnter(Collider other){if (interactiveTag.Contains(other.tag)){curModel = other.transform;curModel.rotation = Quaternion.Euler(curModel.eulerAngles.x, transform.eulerAngles.y, curModel.eulerAngles.z); //物体的角度变成和墙壁一样的角度if (transform.eulerAngles.y > 0){curModel.position = new Vector3(transform.position.x, curModel.position.y, curModel.position.z);DoorAtt.isMoveModelX = false;DoorAtt.isMoveModelZ = true;}else{curModel.position = new Vector3(curModel.position.x, curModel.position.y, transform.position.z);DoorAtt.isMoveModelX = true;DoorAtt.isMoveModelZ = false;}var vModelPos = Camera.main.WorldToScreenPoint(curModel.position);var vMousePos = Input.mousePosition;dis = vModelPos - vMousePos;}}private void OnTriggerExit(Collider other){if (curModel != null){curModel = null;}}
}

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