private void Update()
{
if (!isInited)
{
return;
}
if (Input.GetKeyDown(KeyCode.G))
{
RequestPathfinding(new PathfindingRequest
{
agent = testAgent,
destination = destination.position,
start = testAgent.transform.position
});
}
int count = 0;
while (_requestQueue.Count != 0 && count < FRAME_HANDLE_COUNT)
{
PathfindingRequest req = _requestQueue.Dequeue();
PathfindingCoroutine pathfindingCoroutine = new PathfindingCoroutine(ProcessRequest(req));
StartCoroutine(pathfindingCoroutine);
count++;
}
}
private IEnumerator ProcessRequest(PathfindingRequest request)
{
NavMeshPath navmeshPath = new NavMeshPath();
Vector3 start = request.start;
Vector3 destination = request.destination;
NavMeshAgent agent = request.agent;
Vector3[] abstractPath = new Vector3[1000];
int wayPointCount = 0;
int currentSeqIndex = 0;
int lastSeqIndex = -1;
NavmeshTile[] activeTiles = null;
GenerateAbstractPath(start, destination, ref abstractPath, ref wayPointCount, ref navmeshPath);
yield return(_endOfFrame);
List <TileIdentifier> passedTileList = MarkPassedNavmeshTile(ref abstractPath, ref wayPointCount);
yield return(_endOfFrame);
identifiers = passedTileList;
while (!HasReachedDestination(agent, destination))
{
// 检查当前所处区块是否变化
CheckAgentCurrentPosition(agent, activeTiles, ref currentSeqIndex);
if (lastSeqIndex == currentSeqIndex)
{
// 仍然处于当前区块
yield return(_endOfFrame);
}
// 需要加载新区块
else
{
lastSeqIndex = currentSeqIndex;
GenerateNavmeshTile(passedTileList, ref activeTiles, currentSeqIndex);
yield return(_endOfFrame);
GenerateTileLink(ref activeTiles);
yield return(_endOfFrame);
GenerateDetailedPath(agent, activeTiles, destination);
yield return(_endOfFrame);
TryMoveAgent();
}
}
for (int i = 0; i < activeTiles.Length; i++)
{
if (activeTiles[i] != null)
{
activeTiles[i].ReturnToPool();
}
}
yield return(_endOfFrame);
}
public void RequestPathfinding(PathfindingRequest request)
{
_requestQueue.Enqueue(request);
}