//逻辑更新
public virtual void update()
{
//死亡后达到指定时间，则该角色可以被移除
if (IsKilled)
{
RemoveTimer -= Time.deltaTime;
if (RemoveTimer <= 0)
{
CanRemove = true;
}
}
//武器更新
if (Weapon != null)
{
Weapon.update();
}
//AI更新
if (AI != null)
{
AI.update();
}
//操控行为更新
if (Steerings != null)
{
Steerings.update();
}
}
public override void Action()
{
LeaderAgent leader = (LeaderAgent)agent.Group.Leader;
Vector3 SlotInWorldSpace = leader.transform.TransformPoint(leader.FormationSlots[agent.Parameters.ID - 1]);
//agent.ApplySteerings(SlotInWorldSpace);
agent.RefRigidbody.AddForce(Steerings.Arrive(agent, SlotInWorldSpace));
agent.RefRigidbody.MoveRotation(leader.transform.rotation);
}
public override void ApplySteerings(Vector3 Target)
{
Target = new Vector3(Target.x, transform.position.y, Target.z);
Vector3 force = Steerings.Arrive(this, Target);
RefRigidbody.AddForce(force);
if ((Target - transform.position).magnitude > 3)
{
RefRigidbody.MoveRotation(Quaternion.LookRotation(Target - transform.position));
}
}
public Game()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
graphics.PreferredBackBufferWidth = bounds.Width;
graphics.PreferredBackBufferHeight = bounds.Height;
r = new Random();
deerManager = new DeerManager(this);
Steerings.InitializeSteering();
}
public virtual void ApplySteerings(Vector3 Target)
{
Vector3 total = new Vector3();
FindNeighbors();
total += Steerings.Separation(this) * Parameters.SeparationFactor;
total += Steerings.Alignment(this) * Parameters.AlignmentFactor;
total += Steerings.Cohesion(this) * Parameters.CohesionFactor;
total += Steerings.Seek(this, Target) * Parameters.SeekLeaderFactor;
total += Steerings.Flee(this, Target) * Parameters.FleeLeaderFactor;
if (total != Vector3.zero)
{
RefRigidbody.AddForce(total);
}
if (total != Vector3.zero)
{
RefRigidbody.MoveRotation(Quaternion.LookRotation(total));
}
}
//物理更新
public virtual void fixedUpdate()
{
AI.fixedUpdate();
Steerings.fixedUpdate();
}
protected void CalculateForces()
{
if (!CanMove || MaxForce == 0 || MaxSpeed == 0)
{
return;
}
Profiler.BeginSample("Calculating vehicle forces");
var force = Vector3.zero;
Profiler.BeginSample("Adding up basic steerings");
foreach (var s in Steerings.Where(s => s.enabled))
{
force += s.WeighedForce;
}
Profiler.EndSample();
var elapsedTime = Time.time - LastTickTime;
LastTickTime = Time.time;
if (IsPlanar)
{
force.y = 0;
}
LastRawForce = force;
// enforce limit on magnitude of steering force
Vector3 clippedForce = Vector3.ClampMagnitude(force, MaxForce);
// compute acceleration and velocity
Vector3 newAcceleration = (clippedForce / Mass);
if (newAcceleration.sqrMagnitude == 0)
{
ZeroVelocity();
DesiredVelocity = Vector3.zero;
}
/*
* Damp out abrupt changes and oscillations in steering acceleration
* (rate is proportional to time step, then clipped into useful range)
*
* The lower the smoothRate parameter, the more noise there is
* likely to be in the movement.
*/
if (_accelerationSmoothRate > 0)
{
_smoothedAcceleration = OpenSteerUtility.blendIntoAccumulator(_accelerationSmoothRate,
newAcceleration,
_smoothedAcceleration);
}
else
{
_smoothedAcceleration = newAcceleration;
}
// Euler integrate (per call time) acceleration into velocity
var newVelocity = Velocity + _smoothedAcceleration * elapsedTime;
// Enforce speed limit
newVelocity = Vector3.ClampMagnitude(newAcceleration, MaxSpeed);
DesiredVelocity = newVelocity;
// Adjusts the velocity by applying the post-processing behaviors.
//
// This currently is not also considering the maximum force, nor
// blending the new velocity into an accumulator. We *could* do that,
// but things are working just fine for now, and it seems like
// overkill.
Vector3 adjustedVelocity = Vector3.zero;
Profiler.BeginSample("Adding up post-processing steerings");
foreach (var s in SteeringPostprocessors.Where(s => s.enabled))
{
adjustedVelocity += s.WeighedForce;
}
Profiler.EndSample();
if (adjustedVelocity != Vector3.zero)
{
adjustedVelocity = Vector3.ClampMagnitude(adjustedVelocity, MaxSpeed);
TraceDisplacement(adjustedVelocity, Color.cyan);
TraceDisplacement(newVelocity, Color.white);
newVelocity = adjustedVelocity;
}
// Update vehicle velocity
RecordCalculatedVelocity(newVelocity);
Profiler.EndSample();
}