Unity【SwitchableObject】- 实现一个物体开关控制系统
【摘要】
本文介绍如何实现一个物体的开关控制系统，例如门的开关控制、灯的开关控制等，一切包含打开、关闭这两种状态的物体，均可以通过继承下面的抽象类进行重写实现。
状态枚举：
namespace SK.Framework{ /// <summary> /// 状态 /// </summary> p...
本文介绍如何实现一个物体的开关控制系统，例如门的开关控制、灯的开关控制等，一切包含打开、关闭这两种状态的物体，均可以通过继承下面的抽象类进行重写实现。
状态枚举：
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namespace SK.Framework
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{
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/// <summary>
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/// 状态
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/// </summary>
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public enum SwitchState
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{
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/// <summary>
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/// 开着的
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/// </summary>
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Open,
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/// <summary>
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/// 关着的
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/// </summary>
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Close,
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}
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}
接口：
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namespace SK.Framework
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{
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/// <summary>
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/// 可开关物体接口
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/// </summary>
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public interface ISwitchableObject
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{
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SwitchState State { get; }
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void Switch();
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void Open();
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void Close();
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}
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}
抽象类：
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using UnityEngine;
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namespace SK.Framework
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{
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public abstract class SwitchableObject : MonoBehaviour, ISwitchableObject
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{
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//默认设为关闭状态
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[SerializeField] protected SwitchState state = SwitchState.Close;
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/// <summary>
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/// 当前状态
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/// </summary>
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public SwitchState State { get { return state; } }
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/// <summary>
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/// 切换 若为打开状态则关闭 若为关闭状态则打开
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/// </summary>
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public void Switch()
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{
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switch (State)
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{
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case SwitchState.Open: Close(); break;
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case SwitchState.Close: Open(); break;
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}
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}
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/// <summary>
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/// 开门
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/// </summary>
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public abstract void Open();
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/// <summary>
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/// 关门
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/// </summary>
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public abstract void Close();
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}
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}
开关处理器，例如我们想要通过一个开关控制多个灯时，或者通过一个开关控制一对门时，均可以通过开关处理器，同时处理多个可开关物体：
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using UnityEngine;
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namespace SK.Framework
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{
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/// <summary>
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/// 开关处理器（把手）
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/// </summary>
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public class SwitchableObjectHandler : SwitchableObject
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{
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[SerializeField] private SwitchableObject[] handleArray;
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public override void Open()
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{
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if (state == SwitchState.Open) return;
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state = SwitchState.Open;
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for (int i = 0; i < handleArray.Length; i++)
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{
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handleArray[i].Open();
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}
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}
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public override void Close()
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{
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if (state == SwitchState.Close) return;
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state = SwitchState.Close;
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for (int i = 0; i < handleArray.Length; i++)
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{
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handleArray[i].Close();
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}
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}
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}
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}
这里以门的开关控制为例，我们将门的类型分为移动门和旋转门，首先创建一个门的基类：
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using UnityEngine;
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namespace SK.Framework
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{
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/// <summary>
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/// 可开关门
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/// </summary>
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public abstract class SwitchableDoor : SwitchableObject
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{
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//开/关所用的时长
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[SerializeField] protected float duration = 0.5f;
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//打开状态的值
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protected Vector3 openValue;
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//关闭状态的值
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protected Vector3 closeValue;
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}
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}
1.移动门：
参数说明：
1.State： 门的默认状态（在场景中门是开着还是关着的）；
2.Duration：开关门动作的时长；
3.Direction：门从默认状态到另一个状态的移动方向；
4.Magnitude：门从默认状态到另一状态移动的长度。
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using UnityEngine;
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using System.Collections;
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#if UNITY_EDITOR
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using UnityEditor;
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#endif
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namespace SK.Framework
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{
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/// <summary>
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/// 移动门
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/// </summary>
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public class MoveDoor : SwitchableDoor
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{
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[SerializeField] private Vector3 direction; //移动方向
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[SerializeField] private float magnitude = 1f; //移动的长度
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private Coroutine switchCoroutine;
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private void Start()
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{
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switch (state)
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{
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case SwitchState.Open:
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openValue = transform.position;
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closeValue = transform.position + direction.normalized * magnitude;
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break;
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case SwitchState.Close:
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openValue = transform.position + direction.normalized * magnitude;
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closeValue = transform.position;
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break;
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}
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}
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public override void Open()
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{
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if (state == SwitchState.Open) return;
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state = SwitchState.Open;
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if (switchCoroutine != null) StopCoroutine(switchCoroutine);
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switchCoroutine = StartCoroutine(OpenCoroutine());
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}
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public override void Close()
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{
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if (state == SwitchState.Close) return;
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state = SwitchState.Close;
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if (switchCoroutine != null) StopCoroutine(switchCoroutine);
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switchCoroutine = StartCoroutine(CloseCoroutine());
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}
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private IEnumerator OpenCoroutine()
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{
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float beginTime = Time.time;
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Vector3 beginPos = transform.position;
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for (;(Time.time - beginTime) < duration;)
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{
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float t = (Time.time - beginTime) / duration;
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transform.position = Vector3.Lerp(beginPos, openValue, t);
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yield return null;
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}
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transform.position = openValue;
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switchCoroutine = null;
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}
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private IEnumerator CloseCoroutine()
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{
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float beginTime = Time.time;
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Vector3 beginPos = transform.position;
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for (; (Time.time - beginTime) < duration;)
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{
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float t = (Time.time - beginTime) / duration;
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transform.position = Vector3.Lerp(beginPos, closeValue, t);
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yield return null;
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}
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transform.position = closeValue;
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switchCoroutine = null;
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}
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#if UNITY_EDITOR
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private void OnDrawGizmosSelected()
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{
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if (!Application.isPlaying)
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{
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switch (state)
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{
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case SwitchState.Open:
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openValue = transform.position;
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closeValue = transform.position + direction.normalized * magnitude;
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break;
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case SwitchState.Close:
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openValue = transform.position + direction.normalized * magnitude;
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closeValue = transform.position;
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break;
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}
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}
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Handles.color = Color.cyan;
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Handles.DrawWireCube(openValue, Vector3.one * .1f);
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Handles.DrawWireCube(closeValue, Vector3.one * .1f);
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Handles.DrawLine(openValue, closeValue);
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Handles.Label(openValue, "Open");
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Handles.Label(closeValue, "Close");
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}
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#endif
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}
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}
2.旋转门：
参数说明：
1.State： 门的默认状态（在场景中门是开着还是关着的）；
2.Duration：开关门动作的时长；
3.Angle：门从默认状态到另一个状态的旋转角度。
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using UnityEngine;
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using System.Collections;
-
-
#if UNITY_EDITOR
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using UnityEditor;
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#endif
-
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namespace SK.Framework
-
{
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/// <summary>
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/// 旋转门
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/// </summary>
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public class RotateDoor : SwitchableDoor
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{
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[SerializeField] private float angle = 90f; //旋转角度
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private Coroutine switchCoroutine;
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private void Start()
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{
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switch (state)
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{
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case SwitchState.Open:
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openValue = transform.forward + transform.position;
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closeValue = Quaternion.AngleAxis(angle, transform.up) * transform.forward + transform.position;
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break;
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case SwitchState.Close:
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openValue = Quaternion.AngleAxis(angle, transform.up) * transform.forward + transform.position;
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closeValue = transform.forward + transform.position;
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break;
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}
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}
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public override void Open()
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{
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if (state == SwitchState.Open) return;
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state = SwitchState.Open;
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if (switchCoroutine != null) StopCoroutine(switchCoroutine);
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switchCoroutine = StartCoroutine(OpenCoroutine());
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}
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public override void Close()
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{
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if (state == SwitchState.Close) return;
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state = SwitchState.Close;
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if (switchCoroutine != null) StopCoroutine(switchCoroutine);
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switchCoroutine = StartCoroutine(CloseCoroutine());
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}
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private IEnumerator OpenCoroutine()
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{
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float beginTime = Time.time;
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Quaternion beginRot = transform.rotation;
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Quaternion targetRot = Quaternion.LookRotation(openValue - transform.position, transform.up);
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for (; (Time.time - beginTime) < duration;)
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{
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float t = (Time.time - beginTime) / duration;
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transform.rotation = Quaternion.Lerp(beginRot, targetRot, t);
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yield return null;
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}
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transform.rotation = targetRot;
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switchCoroutine = null;
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}
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private IEnumerator CloseCoroutine()
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{
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float beginTime = Time.time;
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Quaternion beginRot = transform.rotation;
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Quaternion targetRot = Quaternion.LookRotation(closeValue - transform.position, transform.up);
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for (; (Time.time - beginTime) < duration;)
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{
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float t = (Time.time - beginTime) / duration;
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transform.rotation = Quaternion.Lerp(beginRot, targetRot, t);
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yield return null;
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}
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transform.rotation = targetRot;
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switchCoroutine = null;
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}
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#if UNITY_EDITOR
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private void OnDrawGizmosSelected()
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{
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if (!Application.isPlaying)
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{
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switch (state)
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{
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case SwitchState.Open:
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openValue = transform.forward + transform.position;
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closeValue = Quaternion.AngleAxis(angle, transform.up) * transform.forward + transform.position;
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break;
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case SwitchState.Close:
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openValue = Quaternion.AngleAxis(angle, transform.up) * transform.forward + transform.position;
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closeValue = transform.forward + transform.position;
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break;
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}
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}
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Handles.color = Color.cyan;
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Handles.DrawWireCube(openValue, Vector3.one * .1f);
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Handles.DrawWireCube(closeValue, Vector3.one * .1f);
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Handles.DrawLine(transform.position, openValue);
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Handles.DrawLine(transform.position, closeValue);
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Handles.Label(openValue, "Open");
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Handles.Label(closeValue, "Close");
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}
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#endif
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}
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}
测试代码：
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using UnityEngine;
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using SK.Framework;
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public class Example : MonoBehaviour
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{
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[SerializeField] private SwitchableObject door;
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private void OnGUI()
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{
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if (GUILayout.Button("Open", GUILayout.Width(200f), GUILayout.Height(50f))) door.Open();
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if (GUILayout.Button("Close", GUILayout.Width(200f), GUILayout.Height(50f))) door.Close();
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if (GUILayout.Button("Switch", GUILayout.Width(200f), GUILayout.Height(50f))) door.Switch();
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}
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}
文章来源: coderz.blog.csdn.net，作者：CoderZ1010，版权归原作者所有，如需转载，请联系作者。
原文链接：coderz.blog.csdn.net/article/details/123548918
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