public NavMeshInstance(NavMesh mesh, TravelMode mode, int startNode, bool random, bool reverse, bool allowU, int timeOut)
{
m_navMesh = mesh;
m_currentNode = new Node(startNode);
m_overrideMode = mode;
m_startNode = startNode;
m_random = random;
m_reverse = reverse;
m_allowU = allowU;
timeOut = Math.Max(0, timeOut);
m_timeOut = timeOut;
}
public Node GetNextNode()
{
if (m_random)
m_currentNode = m_navMesh.GetRandomNode(m_currentNode, m_allowU);
else
{
if (m_reverse == false)
m_currentNode = m_navMesh.GetNextNode(m_currentNode);
else
m_currentNode = m_navMesh.GetPreviousNode(m_currentNode);
}
if (m_overrideMode != TravelMode.None)
m_currentNode.Mode = m_overrideMode;
return m_currentNode;
}
// returns random node connected to the specified previous node
public Node GetRandomNode(Node previous, bool allowU)
{
List<Node> nodes = new List<Node>();
foreach (Edge edge in m_edges)
{
if (allowU && edge.End == previous.Index)
{
Node node = new Node(edge.Start);
node.Mode = edge.Mode;
try
{
node.Position = m_nodes[edge.Start];
}
catch (System.Exception)
{
node.Position = previous.Position;
}
nodes.Add(node);
}
if (edge.Start == previous.Index)
{
Node node = new Node(edge.End);
node.Mode = edge.Mode;
try
{
node.Position = m_nodes[edge.End];
}
catch (System.Exception)
{
node.Position = previous.Position;
}
nodes.Add(node);
}
}
if (nodes.Count > 0)
{
int index = Util.RandomClass.Next(0, nodes.Count);
return nodes[index];
}
throw new Exception("Path node number " + previous.Index.ToString() + " does not exist for path " + Name + ".");
}
// returns previous node
public Node GetPreviousNode(Node previous)
{
foreach (Edge edge in m_edges)
{
if (edge.End == previous.Index)
{
Node node = new Node(edge.Start);
node.Mode = edge.Mode;
try
{
node.Position = m_nodes[edge.Start];
}
catch (System.Exception)
{
node.Position = previous.Position;
}
return node;
}
}
throw new Exception("Path node number " + previous.Index.ToString() + " does not exist for path " + Name + ".");
}