// monobehaviour ///////////////////////////////////////////////////////////
void Awake()
{
// create projection
var go = GameObject.CreatePrimitive(PrimitiveType.Cylinder);
go.name = "NAVIGATION2D_AGENT";
// project object to 3D (at y=0.5 so feet are at y=0 on navmesh)
go.transform.position = NavMeshUtils2D.ProjectObjectTo3D(transform.position);
agent = go.AddComponent <NavMeshAgent>();
rigidbody2D = GetComponent <Rigidbody2D>();
collider2D = GetComponent <Collider2D>();
// disable navmesh and collider (no collider for now...)
Destroy(agent.GetComponent <Collider>());
Destroy(agent.GetComponent <MeshRenderer>());
// pass serialized values once
agent.speed = _speed;
agent.angularSpeed = _angularSpeed;
agent.acceleration = _acceleration;
agent.stoppingDistance = _stoppingDistance;
agent.autoBraking = _autoBraking;
agent.radius = _radius;
agent.obstacleAvoidanceType = _quality;
agent.avoidancePriority = _priority;
agent.autoRepath = _autoRepath;
}
// monobehaviour ///////////////////////////////////////////////////////////
void Awake()
{
// create projection
var go = GameObject.CreatePrimitive(PrimitiveType.Cylinder);
go.name = "NAVIGATION2D_OBSTACLE";
// project object to 3D (at y=0.5 so feet are at y=0 on navmesh)
go.transform.position = NavMeshUtils2D.ProjectObjectTo3D(transform.position);
go.transform.rotation = Quaternion.Euler(NavMeshUtils2D.RotationTo3D(transform.eulerAngles));
obstacle = go.AddComponent <NavMeshObstacle>();
// disable mesh and collider (no collider for now)
Destroy(obstacle.GetComponent <Collider>());
Destroy(obstacle.GetComponent <MeshRenderer>());
}
void Update()
{
// copy properties to projection all the time
// (in case they are modified after creating it)
obstacle.carving = carve;
// project object to 3D (at y=0.5 so feet are at y=0 on navmesh)
obstacle.center = NavMeshUtils2D.ProjectObjectTo3D(center);
obstacle.size = new Vector3(size.x, 1, size.y);
// scale and rotate to match scaled/rotated sprites center properly
obstacle.transform.localScale = new Vector3(transform.localScale.x, 1, transform.localScale.y);
obstacle.transform.rotation = Quaternion.Euler(NavMeshUtils2D.RotationTo3D(transform.eulerAngles));
// project object to 3D (at y=0.5 so feet are at y=0 on navmesh)
obstacle.transform.position = NavMeshUtils2D.ProjectObjectTo3D(transform.position);
}
void Update()
{
// copy position: transform in Update, rigidbody in FixedUpdate
if (rigidbody2D == null || rigidbody2D.isKinematic)
{
transform.position = NavMeshUtils2D.ProjectTo2D(agent.transform.position);
}
// stuck detection
if (IsStuck())
{
// stop agent movement, reset it to current position
agent.ResetPath();
// project object to 3D (at y=0.5 so feet are at y=0 on navmesh)
agent.transform.position = NavMeshUtils2D.ProjectObjectTo3D(transform.position);
Debug.Log("stopped agent because of collision in 2D plane");
}
}