void Update()
{
// copy properties to projection all the time
// (in case they are modified after creating it)
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;
// 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();
agent.transform.position = NavMeshUtils2D.ProjectTo3D(transform.position);
Debug.Log("stopped agent because of collision in 2D plane");
}
}
// monobehaviour ///////////////////////////////////////////////////////////
void Awake()
{
// create projection
var go = GameObject.CreatePrimitive(PrimitiveType.Cylinder);
go.name = "NAVIGATION2D_AGENT";
go.transform.position = NavMeshUtils2D.ProjectTo3D(transform.position); // todo height 0.5 again?
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;
}
public void endRoll()
{
anim.SetBool("Roll", false);
rb.velocity = Vector2.zero;
nav.agent.transform.position = NavMeshUtils2D.ProjectTo3D(transform.root.position);
nav.enabled = true;
roll = false;
nav.destination = dest.position;
}
public void Warp(Vector2 v)
{
// try to warp, set this agent's position immediately if it worked, so
// that Update doesn't cause issues when trying to move the rigidbody to
// a far away position etc.
if (agent.Warp(NavMeshUtils2D.ProjectTo3D(v)))
{
transform.position = v;
}
}
// monobehaviour ///////////////////////////////////////////////////////////
void Awake()
{
// create projection
var go = GameObject.CreatePrimitive(PrimitiveType.Cylinder);
go.name = "NAVIGATION2D_AGENT";
go.transform.position = NavMeshUtils2D.ProjectTo3D(transform.position); // todo height 0.5 again?
agent = go.AddComponent <NavMeshAgent>();
// disable navmesh and collider (no collider for now...)
Destroy(agent.GetComponent <Collider>());
Destroy(agent.GetComponent <MeshRenderer>());
}
public bool CalculatePath(Vector2 targetPosition, NavMeshPath2D path)
{
var temp = new NavMeshPath();
if (agent.CalculatePath(NavMeshUtils2D.ProjectTo3D(targetPosition), temp))
{
// convert 3D to 2D
path.corners = temp.corners.Select(NavMeshUtils2D.ProjectTo2D).ToArray();
path.status = temp.status;
return(true);
}
return(false);
}
public bool CalculatePath(Vector2 targetPosition)
{
var temp = new NavMeshPath();
if (agent.CalculatePath(NavMeshUtils2D.ProjectTo3D(targetPosition), temp))
{
return(true);
}
else
{
return(false);
}
}
// monobehaviour ///////////////////////////////////////////////////////////
void Awake()
{
// create projection
var go = GameObject.CreatePrimitive(PrimitiveType.Cylinder);
go.name = "NAVIGATION2D_OBSTACLE";
go.transform.position = NavMeshUtils2D.ProjectTo3D(transform.position);
go.transform.rotation = Quaternion.Euler(NavMeshUtils2D.RotationTo3D(transform.eulerAngles));
obst = go.AddComponent <NavMeshObstacle>();
// disable mesh and collider (no collider for now)
Destroy(obst.GetComponent <Collider>());
Destroy(obst.GetComponent <MeshRenderer>());
}
void Update()
{
// copy properties to projection all the time
// (in case they are modified after creating it)
obst.carving = carve;
obst.center = NavMeshUtils2D.ProjectTo3D(center);
obst.size = new Vector3(size.x, 1, size.y);
// scale and rotate to match scaled/rotated sprites center properly
obst.transform.localScale = new Vector3(transform.localScale.x, 1, transform.localScale.y);
obst.transform.rotation = Quaternion.Euler(NavMeshUtils2D.RotationTo3D(transform.eulerAngles));
// project position to 3d
obst.transform.position = NavMeshUtils2D.ProjectTo3D(transform.position);
}
void FixedUpdate()
{
// copy properties to projection all the time
// (in case they are modified after creating it)
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;
// copy projection's position
var rb = GetComponent <Rigidbody2D>();
if (rb != null && !rb.isKinematic)
{
rb.MovePosition(NavMeshUtils2D.ProjectTo2D(agent.transform.position));
}
else
{
transform.position = NavMeshUtils2D.ProjectTo2D(agent.transform.position);
}
// stuck detection: get max distance first (best with collider)
float maxdist = 2; // default if no collider
if (GetComponent <Collider2D>())
{
var bounds = GetComponent <Collider2D>().bounds;
maxdist = Mathf.Max(bounds.extents.x, bounds.extents.y) * 2;
}
// stuck detection: reset if distance > max distance
float dist = Vector2.Distance(transform.position, NavMeshUtils2D.ProjectTo2D(agent.transform.position));
if (dist > maxdist)
{
// stop agent movement, reset it to current position
agent.ResetPath();
agent.transform.position = NavMeshUtils2D.ProjectTo3D(transform.position);
Debug.Log("stopped agent because of collision in 2D plane");
}
}
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();
agent.transform.position = NavMeshUtils2D.ProjectTo3D(transform.position);
Debug.Log("stopped agent because of collision in 2D plane");
}
}
// based on: https://docs.unity3d.com/ScriptReference/AI.NavMesh.SamplePosition.html
public static bool SamplePosition(Vector2 sourcePosition, out NavMeshHit2D hit, float maxDistance, int areaMask)
{
NavMeshHit hit3D;
if (NavMesh.SamplePosition(NavMeshUtils2D.ProjectTo3D(sourcePosition), out hit3D, maxDistance, areaMask))
{
hit = new NavMeshHit2D {
position = NavMeshUtils2D.ProjectTo2D(hit3D.position),
normal = NavMeshUtils2D.ProjectTo2D(hit3D.normal),
distance = hit3D.distance,
mask = hit3D.mask,
hit = hit3D.hit
};
return(true);
}
hit = new NavMeshHit2D();
return(false);
}
public static bool Raycast(Vector2 sourcePosition, Vector2 targetPosition, out NavMeshHit2D hit, int areaMask)
{
if (NavMesh.Raycast(NavMeshUtils2D.ProjectTo3D(sourcePosition),
NavMeshUtils2D.ProjectTo3D(targetPosition),
out NavMeshHit hit3D,
areaMask))
{
hit = new NavMeshHit2D {
position = NavMeshUtils2D.ProjectTo2D(hit3D.position),
normal = NavMeshUtils2D.ProjectTo2D(hit3D.normal),
distance = hit3D.distance,
mask = hit3D.mask,
hit = hit3D.hit
};
return(true);
}
hit = new NavMeshHit2D();
return(false);
}
public void ChangePath()
{
agent.ResetPath();
agent.transform.position = NavMeshUtils2D.ProjectTo3D(transform.position);
}
