//----------------------------------------------------------
#region Override Methods
//自定义属性面板
public override void OnInspectorGUI()
{
//所选目标
AIWallPointNetWork network = target as AIWallPointNetWork;
//定制枚举变量编辑器样式
network.DisPlayMode =
(AIWallPointNetWork.NetWorkDisPlayMode)EditorGUILayout.EnumPopup("DisPlayMode", network.DisPlayMode);
//只有在PATH模式下才能操作from,to
if (network.DisPlayMode == AIWallPointNetWork.NetWorkDisPlayMode.Path)
{
//定制滑动条
network.From = EditorGUILayout.IntSlider("Start", network.From, 0, network.WallPoints.Count - 1);
network.To = EditorGUILayout.IntSlider("End", network.To, 0, network.WallPoints.Count - 1);
}
//绘制出原有默认的属性面板，当然已经声明了[HideInInspector]的字段不会被绘制，而是进行自定义绘制
DrawDefaultInspector();
}
//自定义场景显示
private void OnSceneGUI()
{
AIWallPointNetWork network = target as AIWallPointNetWork;
//给所有的路径点在场景中显示名称
for (int i = 0; i < network.WallPoints.Count; i++)
{
if (network.WallPoints[i] != null)
{
Handles.Label(network.WallPoints[i].transform.position, "WallPoint" + i.ToString());
}
}
//该数组存储所有路径点的位置信息，由于要实现环形连接，所以要加多一个长度
Vector3[] LineWallPoints = new Vector3[network.WallPoints.Count + 1];
//环形连接模式
if (network.DisPlayMode == AIWallPointNetWork.NetWorkDisPlayMode.Connect)
{
for (int i = 0; i <= network.WallPoints.Count; i++)
{
//最后一个值归零，也就是连接回原点
int index = i != network.WallPoints.Count ? i : 0;
if (network.WallPoints[index] != null)
{
LineWallPoints[i] = network.WallPoints[index].position;
}
else
{
LineWallPoints[i] = new Vector3(Mathf.Infinity, Mathf.Infinity, Mathf.Infinity);
}
}
//颜色定制
Handles.color = Color.yellow;
//开始绘制线条
Handles.DrawPolyLine(LineWallPoints);
}
//PATH模式下，所选的两个路经点会自动绘制出最佳路径，而不是单纯的直线连接
else if (network.DisPlayMode == AIWallPointNetWork.NetWorkDisPlayMode.Path)
{
//导航系统计算的路径
NavMeshPath Path = new NavMeshPath();
if (network.WallPoints[network.From] != null && network.WallPoints[network.To] != null)
{
//起始点的位置
Vector3 from = network.WallPoints[network.From].position;
//目标点的位置
Vector3 to = network.WallPoints[network.To].position;
//开始路径计算，路径点存储在corners里
NavMesh.CalculatePath(from, to, NavMesh.AllAreas, Path);
}
//颜色定制，不同模式颜色最好不一样，便于识别
Handles.color = Color.cyan;
//开始绘制路线
Handles.DrawPolyLine(Path.corners);
}
}
