using TowerDefense.Agents;
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using TowerDefense.MeshCreator;
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using UnityEngine;
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namespace TowerDefense.Nodes
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{
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/// <summary>
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/// A point along the path which agents will navigate towards before recieving the next instruction from the NodeSelector
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/// Requires a collider to be added manually.
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/// Agent孵化和移动的节点，有相应的功能封装。
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/// </summary>
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[RequireComponent(typeof(Collider))]
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public class Node : MonoBehaviour
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{
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/// <summary>
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/// 是否是对手方刷新点，根据这个值来判断刷新出来的Agent是哪一方
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/// </summary>
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public bool bOpponentSide = false;
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/// <summary>
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/// Reference to the MeshObject created by an AreaMeshCreator
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/// </summary>
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[HideInInspector]
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public AreaMeshCreator areaMesh;
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/// <summary>
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/// Selection weight of the node
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/// </summary>
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public int weight = 1;
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/// <summary>
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/// Gets the next node from the selector
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/// </summary>
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/// <returns>Next node, or null if this is the terminating node</returns>
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public Node GetNextNode()
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{
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var selector = GetComponent<NodeSelector>();
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if (selector != null)
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{
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return selector.GetNextNode();
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}
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return null;
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}
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/// <summary>
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/// Gets a random point inside the area defined by a node's meshcreator
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/// </summary>
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/// <returns>A random point within the MeshObject's area</returns>
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public Vector3 GetRandomPointInNodeArea()
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{
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// Fallback to our position if we have no mesh
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return transform.position;
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// 返回随机位置信息.
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//return areaMesh == null ? transform.position : areaMesh.GetRandomPointInside();
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}
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/// <summary>
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/// When agent enters the node area, get the next node
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/// </summary>
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public virtual void OnTriggerEnter(Collider other)
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{
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// var agent = other.gameObject.GetComponent<Agent>();
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// if (agent != null)
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// {
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// agent.MoveToNextNode(this);
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// }
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}
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#if UNITY_EDITOR
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/// <summary>
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/// Ensure the collider is a trigger
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/// </summary>
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protected void OnValidate()
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{
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var trigger = GetComponent<Collider>();
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if (trigger != null)
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{
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trigger.isTrigger = true;
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}
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// Try and find AreaMeshCreator
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if (areaMesh == null)
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{
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areaMesh = GetComponentInChildren<AreaMeshCreator>();
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}
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}
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void OnDrawGizmos()
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{
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Gizmos.DrawIcon(transform.position + Vector3.up, "movement_node.png", true);
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}
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#endif
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}
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}
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