Up自制Unity预制脚本handler.cs
using System.Collections;
using System.Collections.Generic;
using System.Security.Cryptography.X509Certificates;
using UnityEngine;
public class handler : MonoBehaviour
{
public string targetName="";
//保存目标物体的名字。
public Transform targetTransform=null;
//保存目标物体的坐标系。
public Transform myself;
//保存玩家自己作为参考。
public Vector3 targetEuler=new Vector3(0,0,0);
//保存被抓取物体的相对旋转位置。
public Vector3 targetDistance = new Vector3(0, 0, 0);
//保存被抓取物体相对抓把的位置。
Vector3 lastAngle = new Vector3(0, 0, 0);
// Start is called before the first frame update
void Start()
{
myself = transform.parent.parent.transform;
//用来指定玩家自己，当抓取物体时给物体旋转做参考。
}
// Update is called once per frame
void Update()
{
KeyCode grabberKey = KeyCode.Mouse0;
if (Input.GetKeyDown(grabberKey) && targetTransform != null)
{
lastAngle = myself.eulerAngles;
targetEuler = targetTransform.GetComponent<Transform>().eulerAngles - myself.eulerAngles;
targetDistance = targetTransform.position - transform.position;
//抓取物件。
}
if (Input.GetKey(grabberKey) && targetTransform != null)
{
lastAngle = myself.eulerAngles - lastAngle;
targetDistance = Quaternion.Euler(lastAngle)*targetDistance;
lastAngle = myself.eulerAngles;
targetTransform.position = transform.position + targetDistance;
//当按下左边的shift的时候，拾取物体。物体的坐标等于抓把的坐标。
targetTransform.eulerAngles = myself.eulerAngles + targetEuler;
//当按下左边的shift的时候，拾取物体的旋转角度与抓把的联动。
}
if (Input.GetKeyDown(KeyCode.R))
{
targetEuler = new Vector3(0, 0, 0);
targetDistance = new Vector3(0, 0, 0);
//当按下定义键的时候被抓物体姿势摆正。
}
if (Input.GetKeyDown(KeyCode.F3) && targetTransform != null)
{
targetTransform.GetComponent<Rigidbody>().useGravity = true;
//开启被抓物体重力。
}
if (Input.GetKeyDown(KeyCode.F4) && targetTransform != null)
{
targetTransform.GetComponent<Rigidbody>().useGravity = false;
//关闭被抓物体重力。
}
if (Input.GetKeyDown(KeyCode.F1))
{
transform.GetComponent<MeshRenderer>().enabled = false;
//显示抓把。
}
if (Input.GetKeyDown(KeyCode.F2))
{
transform.GetComponent<MeshRenderer>().enabled = true;
//隐藏抓把。
}
if (Input.GetKey(KeyCode.X))
{
targetEuler=new Vector3(targetEuler.x+1, targetEuler.y, targetEuler.z);
}
//按下则被抓物体沿x轴旋转。
if (Input.GetKey(KeyCode.Z))
{
targetEuler = new Vector3(targetEuler.x, targetEuler.y, targetEuler.z+1);
}
//按下则被抓物体沿z轴旋转。
if (Input.GetKey(KeyCode.Y))
{
targetEuler = new Vector3(targetEuler.x, targetEuler.y+1, targetEuler.z);
}
//按下则被抓物体沿y轴旋转。
}
private void OnTriggerEnter(Collider other)
{
if ((other.GetComponent<grabbable>().grabable == true) & (targetName=="") )
{
transform.GetComponent<handler>().targetName = other.GetComponent<Transform>().name;
targetTransform = other.GetComponent<Transform>();
//玩家正面前方设有一个小球，设置为trigger属性，会与任何具有可抓取组件（grabbable脚本）的物体交互。与该物体接触时会设置一些属性。
}
}
private void OnTriggerExit(Collider other)
{
if (other.GetComponent<Transform>().name == targetName)
{
transform.GetComponent<handler>().targetName = "";
targetTransform = null;
targetEuler = new Vector3(0, 0, 0);
//玩家正面三米处设有一个小立方体，设置为trigger属性，会与任何具有可抓取组件（grabbable脚本）的物体交互。退出该接触时会清空一些属性。
}
}
}
