一 Button的点击
1.1 新建UI -> Button
1.2 在Button上面右击添加空物体
1.3 创建脚本挂载到空物体上面
脚本内容添加点击方法，来控制物体的显示隐藏
using System.Collections;
using System.Collections.Generic;
using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.EventSystems;public class NewMonoBehaviour : MonoBehaviour
{public GameObject player;//获取物体private bool isActivity = true;private void Awake(){player = GameObject.Find("Player");}// Start is called before the first frame updatevoid Start(){}void Update(){}// 按钮点击事件public void OnMyClick(){isActivity = !isActivity;//显示或者隐藏player.SetActive(isActivity);}
}1.4 按钮上On Click的位置关联空物体，并选择空物体的脚本方法OnMyClick()
1.5 运行后就可能控制物体显示隐藏了
二 方向键控制移动
2.1 添加四个方向按钮
2.2 添加一个脚本，同时挂载到四个按钮上面
2.3 编写脚本，通过按钮名字判断是点击的哪个按钮，从而判断往哪个方向移动
using System.Collections;
using System.Collections.Generic;
using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.EventSystems;public class Controll : MonoBehaviour,IPointerDownHandler, IPointerUpHandler
{public Rigidbody2D rbody;//获取刚体private void Awake(){rbody = GameObject.Find("Player").GetComponent<Rigidbody2D>();}void Start(){}// Update is called once per framevoid Update(){if (isMove) {move();} }public bool isMove = false;//是否移动public void OnPointerDown(PointerEventData eventData){isMove = true;getButton(eventData);}public void OnPointerUp(PointerEventData eventData){isMove = false;}//获取点击的哪个按钮，方向private void getButton(PointerEventData eventData) {GameObject gameObject = eventData.selectedObject;Debug.Log(gameObject.name);switch (gameObject.name) {case "ButtonUp":moveX = 0;moveY = 1;break;case "ButtonLeft":moveX = -1;moveY = 0;break;case "ButtonBottom":moveX = 0;moveY = -1;break;case "ButtonRight":moveX = 1;moveY = 0;break;default:moveX = 0;moveY = 0;break;}}/*** 移动**/public float speed = 10f;//移动速度private int moveX;//方向 -1左 1右private int moveY;//方向 -1上 1下public void move() {Vector2 position = rbody.position;position.x += moveX * speed * Time.deltaTime;position.y += moveY * speed * Time.deltaTime;//transform.position = position;rbody.MovePosition(position);}
}
2.4 运行可以看到物体可以往上下左右方法移动
2.5 总结：
- 脚本实现抬起按下事件的接口MonoBehaviour,IPointerDownHandler, IPointerUpHandler。
- 通过GameObject.Find("Player").GetComponent<Rigidbody2D>()，获取物体
- 添加变量是否移动isMove，在Update方法里面判断是否拦截移动
- OnPointerDown 按下的时候通过eventData.selectedObject，获取点击的哪个按钮，来判断上下左右方向
- 添加方向判断判断，按钮按下的时候赋值，int moveX;//方向 -1左 1右 int moveY;//方向 -1上 1下
- OnPointerUp 按键抬起的时候，ivMove变为false，不再更新移动位置
