// Use this for initialization
void Start()
{
character = GetComponent <CharacterController>();
navMesh = GameObject.FindObjectOfType <DungeonNavMesh>();
if (navMesh == null)
{
Debug.LogWarning("Cannot build initialize dungeon navigation agent. No dungeon navigation object found in the scene. Drop in the DungeonNavigation prefab into the scene");
}
else
{
// Place the player on the nearest valid nav mesh polygon
PositionOnNearestNavMesh();
var agentParams = new SharpNav.Crowds.AgentParams();
agentParams.Radius = radius;
agentParams.Height = height;
agentParams.MaxAcceleration = maxAcceleration;
agentParams.MaxSpeed = maxSpeed;
agentParams.CollisionQueryRange = collisionQueryRange;
agentParams.PathOptimizationRange = pathOptimizationRange;
agentParams.SeparationWeight = separationWeight;
agentParams.UpdateFlags = UpdateFlags.Separation | UpdateFlags.OptimizeTopo;
var position = transform.position;
var sposition = ToSV3(position);
if (navMesh.Crowd == null)
{
Debug.Log("Navmesh not initialized properly. Crowd is null");
return;
}
agentId = navMesh.Crowd.AddAgent(sposition, agentParams);
if (agentId >= 0)
{
agent = navMesh.Crowd.GetAgent(agentId);
}
else
{
Debug.Log("Cannot create crowd nav agent");
}
}
}
private void GenerateCrowd()
{
if (!hasGenerated || navMeshQuery == null)
return;
Random rand = new Random();
crowd = new Crowd(MAX_AGENTS, 0.6f, ref tiledNavMesh);
SVector3 c = new SVector3(10, 0, 0);
SVector3 e = new SVector3(5, 5, 5);
AgentParams ap = new AgentParams();
ap.Radius = 0.6f;
ap.Height = 2.0f;
ap.MaxAcceleration = 8.0f;
ap.MaxSpeed = 3.5f;
ap.CollisionQueryRange = ap.Radius * 12.0f;
ap.PathOptimizationRange = ap.Radius * 30.0f;
ap.UpdateFlags = new UpdateFlags();
//initialize starting positions for each active agent
for (int i = 0; i < numActiveAgents; i++)
{
//Get the polygon that the starting point is in
NavPoint startPt;
navMeshQuery.FindNearestPoly(ref c, ref e, out startPt);
//Pick a new random point that is within a certain radius of the current point
NavPoint newPt;
navMeshQuery.FindRandomPointAroundCircle(ref startPt, 1000, out newPt);
c = newPt.Position;
//Save this random point as the starting position
trails[i].Trail = new SVector3[AGENT_MAX_TRAIL];
trails[i].Trail[0] = newPt.Position;
trails[i].HTrail = 0;
//add this agent to the crowd
int idx = crowd.AddAgent(newPt.Position, ap);
//Give this agent a target point
NavPoint targetPt;
navMeshQuery.FindRandomPointAroundCircle(ref newPt, 1000, out targetPt);
crowd.GetAgent(idx).RequestMoveTarget(targetPt.Polygon, targetPt.Position);
trails[i].Trail[AGENT_MAX_TRAIL - 1] = targetPt.Position;
}
}
/// <summary>
/// Add an agent to the crowd.
/// </summary>
/// <param name="pos">The agent's position</param>
/// <param name="parameters">The settings</param>
/// <returns>The id of the agent (-1 if there is no empty slot)</returns>
public int AddAgent(Vector3 pos, AgentParams parameters)
{
//find empty slot
int idx = -1;
for (int i = 0; i < maxAgents; i++)
{
if (!agents[i].IsActive)
{
idx = i;
break;
}
}
if (idx == -1)
return -1;
agents[idx].UpdateAgentParameters(parameters);
//find nearest position on the navmesh and place the agent there
NavPoint nearest;
navQuery.FindNearestPoly(ref pos, ref ext, out nearest);
/*if (status == false)
{
nearest = pos;
reference = 0;
}*/
agents[idx].Reset(nearest.Polygon, nearest.Position);
agents[idx].IsActive = true;
return idx;
}
