53 lines
1.5 KiB
C#
53 lines
1.5 KiB
C#
using System;
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using System.Collections.Generic;
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namespace BehaviorTree
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{
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public class Sequence : Composite
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{
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private int _currentIndex;
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private Node _currentNode;
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public Sequence(List<Node> _nodes)
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{
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nodes = _nodes;
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}
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public override Status Start()
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{
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if (nodes == null || nodes.Count == 0)
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{
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return Status.Failure;
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}
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_currentIndex = 0;
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_currentNode = nodes[_currentIndex];
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_currentNode.Start();
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return Status.Running;
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}
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public override Status Update()
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{
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Status status = _currentNode?.Update() ?? Status.Failure;
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switch (status)
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{
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case Status.Success:
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if (_currentNode?.End() == Status.Failure) return Status.Failure;
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_currentIndex++;
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if (_currentIndex >= nodes.Count) return Status.Success;
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_currentNode = nodes[_currentIndex];
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if (_currentNode?.Start() == Status.Failure) return Status.Failure;
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return Status.Running;
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case Status.Failure:
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_currentNode?.End();
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return Status.Failure;
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case Status.Running:
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return Status.Running;
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default:
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throw new ArgumentOutOfRangeException();
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}
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}
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}
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} |