[Unity插件]Behavior Designer：自定义Conditional节点

Behavior Designer自带的一个Conditional节点：

using UnityEngine;namespace BehaviorDesigner.Runtime.Tasks.Basic.UnityGameObject{    [TaskCategory("Basic/GameObject")]    [TaskDescription("Returns Success if the GameObject is active in the hierarchy, otherwise Failure.")]    public class ActiveInHierarchy : Conditional    {        [Tooltip("The GameObject that the task operates on. If null the task GameObject is used.")]        public SharedGameObject targetGameObject;        public override TaskStatus OnUpdate()        {            return GetDefaultGameObject(targetGameObject.Value).activeInHierarchy ? TaskStatus.Success : TaskStatus.Failure;        }        public override void OnReset()        {            targetGameObject = null;        }    }}

TaskCategory：把该类放在"Add Task/Conditionals/Basic/GameObject"

TaskDescription：选中节点后显示的描述性文字

Tooltip：对字段的描述性文字

重点就是重写OnUpdate方法了：

using UnityEngine;namespace BehaviorDesigner.Runtime.Tasks.Basic.UnityGameObject{    [TaskCategory("Basic/GameObject")]    [TaskDescription("是否有BoxCollider组件")]    public class HasBoxCollider : Conditional    {        [Tooltip("The GameObject that the task operates on. If null the task GameObject is used.")]        public SharedGameObject targetGameObject;        public override TaskStatus OnUpdate()        {            return GetDefaultGameObject(targetGameObject.Value).GetComponent<BoxCollider>() ? TaskStatus.Success : TaskStatus.Failure;        }        public override void OnReset()        {            targetGameObject = null;        }    }}

以上要注意的是即使物体有BoxCollider组件，但组件前的勾是取消的，也会返回Success。

GetDefaultGameObject默认的是该节点的GameObject，当然也可以指定其他的。