public void AddSteeringBehaviour(ISteeringBehaviour behaviour)
{
//The list of behaviours can only contain one type of a behaviour
Type typeOfBehaviour = behaviour.GetType();
if (this.Behaviours.Where(x => x.GetType() == typeOfBehaviour).Count() == 0)
this.Behaviours.Add(behaviour);
}
/// <summary>
/// Registers a steering component.
/// </summary>
/// <param name="behavior">The behavior.</param>
public void RegisterSteeringBehavior(ISteeringBehaviour behavior)
{
int count = _steeringComponents.Count;
for (int i = 0; i < count; i++)
{
var c = _steeringComponents[i];
if (c.priority == behavior.priority)
{
var grp = c as SteeringGroup;
if (grp == null)
{
grp = new SteeringGroup(c.priority);
_steeringComponents[i] = grp;
grp.Add(c);
}
grp.Add(behavior);
return;
}
}
_steeringComponents.Add(behavior);
_steeringComponents.Sort((a, b) => b.priority.CompareTo(a.priority));
}
protected override void Initialize()
{
_spriteBatch = new SpriteBatch(GraphicsDevice);
var random = new Random((int)DateTime.Now.Ticks);
_steeringTarget = new SteeringTarget(Vector2.Zero);
_seekBehaviour = new SeekBehaviour(_steeringTarget);
_fleeBehaviour = new FleeBehaviour(_steeringTarget);
_currentSteeringBehaviour = _seekBehaviour;
for (var i = 0; i < 3000; i++)
{
var entity = new Entity(this, _spriteBatch, new Vehicle
{
Position = new Vector2(random.Next(GraphicsDevice.Viewport.Width), random.Next(GraphicsDevice.Viewport.Height)),
// Todo if you like:
// Tweak these values to see how they affect the steering behaviours.
MaxSpeed = 500,
MaxForce = 350,
Mass = 1f
});
entity.SetSteeringBehaviour(_seekBehaviour);
Components.Add(entity);
}
base.Initialize();
}
protected override void Initialize()
{
_spriteBatch = new SpriteBatch(GraphicsDevice);
var random = new Random((int)DateTime.Now.Ticks);
_steeringTarget = new SteeringTarget(Vector2.Zero);
_seekBehaviour = new SeekBehaviour(_steeringTarget);
_fleeBehaviour = new FleeBehaviour(_steeringTarget);
_currentSteeringBehaviour = _seekBehaviour;
for (var i = 0; i < 3000; i++)
{
var entity = new Entity(this, _spriteBatch, new Vehicle
{
Position = new Vector2(random.Next(GraphicsDevice.Viewport.Width), random.Next(GraphicsDevice.Viewport.Height)),
// Todo if you like:
// Tweak these values to see how they affect the steering behaviours.
MaxSpeed = 500,
MaxForce = 350,
Mass = 1f
});
entity.SetSteeringBehaviour(_seekBehaviour);
Components.Add(entity);
}
base.Initialize();
}
public void Wander()
{
if (currentBehaviour is Wander)
{
return;
}
currentBehaviour = new Wander(enemy, 1.0f, 4.0f, Angle.FromDegrees(180.0f));
}
public void Pursuit(float evaderSpeed)
{
if (currentBehaviour is Pursuit)
{
return;
}
currentBehaviour = new Pursuit(enemy, player, evaderSpeed);
}
public void Seek()
{
if (currentBehaviour is Seek)
{
return;
}
currentBehaviour = new Seek(enemy, player);
}
/// <summary>
/// Adds the specified member.
/// </summary>
/// <param name="member">The member.</param>
/// <exception cref="System.ArgumentException">Invalid priority</exception>
public void Add(ISteeringBehaviour member)
{
if (member.priority != this.priority)
{
throw new ArgumentException("Invalid priority");
}
_steeringComponents.Add(member);
}
public void Add(ISteeringBehaviour member)
{
if (member.priority != this.priority)
{
throw new ArgumentException("Invalid priority");
}
_steeringComponents.Add(member);
}
public SeekTask(AgentBehaviour agent, Transform targetTransform, float seekForce, Action onSuccess = null, Action onFail = null)
{
_actorRigidbody = agent.GetComponent <Rigidbody>();
_actorTransform = agent.GetComponent <Transform>();
_targetTransform = targetTransform;
_seekForce = seekForce;
_onSuccess = onSuccess;
_onFail = onFail;
_steeringBehaviour = new Seek();
_completed = false;
}
/// <summary>
/// Unregisters a steering behavior.
/// </summary>
/// <param name="behavior">The behavior.</param>
public void UnregisterSteeringBehavior(ISteeringBehaviour behavior)
{
int start = _steeringComponents.Count - 1;
for (int i = start; i >= 0; i--)
{
var c = _steeringComponents[i];
if (c.priority == behavior.priority)
{
var grp = c as SteeringGroup;
if (grp != null)
{
grp.Remove(behavior);
}
else
{
_steeringComponents.RemoveAt(i);
}
}
}
}
private void ChangeSteeringBehaviour()
{
if (_currentSteeringBehaviour == _seekBehaviour)
{
_currentSteeringBehaviour = _fleeBehaviour;
}
else
{
_currentSteeringBehaviour = _seekBehaviour;
}
foreach (var component in Components)
{
var entity = component as Entity;
if (entity == null)
{
continue;
}
entity.SetSteeringBehaviour(_currentSteeringBehaviour);
}
}
/// <summary>
/// Unregisters a steering behavior.
/// </summary>
/// <param name="behavior">The behavior.</param>
public void UnregisterSteeringBehavior(ISteeringBehaviour behavior)
{
int start = _steeringComponents.Count - 1;
for (int i = start; i >= 0; i--)
{
var c = _steeringComponents[i];
if (c.priority == behavior.priority)
{
var grp = c as SteeringGroup;
if (grp != null)
{
grp.Remove(behavior);
}
else
{
_steeringComponents.RemoveAt(i);
}
}
}
}
/// <summary>
/// Registers a steering component.
/// </summary>
/// <param name="behavior">The behavior.</param>
public void RegisterSteeringBehavior(ISteeringBehaviour behavior)
{
int count = _steeringComponents.Count;
for (int i = 0; i < count; i++)
{
var c = _steeringComponents[i];
if (c.priority == behavior.priority)
{
var grp = c as SteeringGroup;
if (grp == null)
{
grp = new SteeringGroup(c.priority);
_steeringComponents[i] = grp;
grp.Add(c);
}
grp.Add(behavior);
return;
}
}
_steeringComponents.Add(behavior);
_steeringComponents.Sort((a, b) => b.priority.CompareTo(a.priority));
}
private void ChangeSteeringBehaviour()
{
if (_currentSteeringBehaviour == _seekBehaviour)
_currentSteeringBehaviour = _fleeBehaviour;
else
_currentSteeringBehaviour = _seekBehaviour;
foreach (var component in Components)
{
var entity = component as Entity;
if (entity == null)
continue;
entity.SetSteeringBehaviour(_currentSteeringBehaviour);
}
}
public void SetSteeringBehaviour(ISteeringBehaviour steeringBehaviour)
{
_steeringBehaviour = steeringBehaviour;
}
public void Remove(ISteeringBehaviour member)
{
_steeringComponents.Remove(member);
}
public Car(IBrakingBehaviour brakingBehaviour, ISteeringBehaviour steeringBehaviour)
{
_brakingBehaviour = brakingBehaviour;
_steeringBehaviour = steeringBehaviour;
}
/// <summary>
/// Removes the specified member.
/// </summary>
/// <param name="member">The member.</param>
public void Remove(ISteeringBehaviour member)
{
_steeringComponents.Remove(member);
}
public void SetSteeringBehaviour(ISteeringBehaviour steeringBehaviour)
{
_steeringBehaviour = steeringBehaviour;
}
