private void onPathFound(Path path, PathRequestStatus status)
{
if (status == PathRequestStatus.PathFound)
{
// Create the path session
this.session = new PathSession(path);
// Check if we are at the starting node - if so then skip
if (currentIndex == session.Index)
{
// Skip the starting node
session.advancePath();
}
changeState(AgentState.FollowingPath);
}
else if (status == PathRequestStatus.SameStartEnd)
{
// Make sure the agent moves to the current location (The agent may have already started moving away)
Path temp = new Path(null);
temp.push(searchGrid[currentIndex.X, currentIndex.Y], currentIndex);
// Change state
changeState(AgentState.FollowingPath);
}
else if (status == PathRequestStatus.PathNotFound)
{
// Trigger the message
onDestinationUnreachable();
// Go back to idle mode
changeState(AgentState.Idle);
}
else
{
// Go back to idle mode
changeState(AgentState.Idle);
}
}
/// <summary>
/// Called by Unity.
/// Can be overriden but be sure to call base.Update() to allow the agent to update properly.
/// </summary>
public virtual void Update()
{
// Reset flag
isMoving = false;
switch (state)
{
default:
case AgentState.Idle:
case AgentState.AwaitingPath:
{
// Store the last position
lastPosition = transform.position;
}
return;
case AgentState.FollowingPath:
{
// Make sure our path session is valid
if (session == null)
{
// Go back to the idle state and do nothing
changeState(AgentState.Idle);
return;
}
// Check if we have arrived
if (session.hasReachedCurrentNode(transform) == true)
{
// Update our agents target index
currentIndex = session.Index;
// Check if we have arrived at the last node
if (session.IsLastNode == true)
{
// Snap to destination
transform.position = session.WorldPosition;
// We have completed the path
session = null;
// Trigger message
onDestinationReached();
// Change to idle state
changeState(AgentState.Idle);
}
else
{
// Make sure we can still reach the target
if (session.CurrentPath.IsFullyReachable == false)
{
if (dynamicRoutes == true)
{
// Update the destination
setDestination(session.CurrentPath.LastNode.Index);
return;
}
}
// Get the next node in the path
session.advancePath();
// Make sure our target is walkable
if (dynamicRoutes == false)
{
//if(target.IsWalkable == false)
if (session.CurrentPath.IsFullyReachable == false)
{
Debug.LogWarning(string.Format("Agent [{0}]: I cannot reach that destination anymore. The path has been blocked", gameObject.name));
// Stop walking
changeState(AgentState.Idle);
}
}
}
}
else
{
// Move towards our target
moveTowards();
}
} break;
}
}