public void EvadeOff()
{
if (On(behavior_type.evade))
{
flags ^= behavior_type.evade;
}
}
public void ArriveOff()
{
if (On(behavior_type.arrive))
{
flags ^= behavior_type.arrive;
}
}
public void PursuitOff()
{
if (On(behavior_type.pursuit))
{
flags ^= behavior_type.pursuit;
}
}
public void FleeOff()
{
if (On(behavior_type.flee))
{
flags ^= behavior_type.flee;
}
}
public void SeekOff()
{
if (On(behavior_type.seek))
{
flags ^= behavior_type.seek;
}
}
public void WanderOff()
{
if (On(behavior_type.wander))
{
flags ^= behavior_type.wander;
}
}
public SteeringBehavior(Vehicle vehicle)
{
this.vehicle = vehicle;
this.flags = behavior_type.none;
this.TargetAgent1 = null;
//this.targetAgent2 = null;
this.target = Vector2.Empty;
//stuff for the wander behavior
double theta = random.NextDouble() * 2.0 * Math.PI;
//create a vector to a target position on the wander circle
wanderTarget = new Vector2((float)(wanderRadius * Math.Cos(theta)),
(float)(wanderRadius * Math.Sin(theta)));
}
public void WanderOn()
{
flags |= behavior_type.wander;
}
bool On(behavior_type bt)
{
return((flags & (int)bt) == (int)bt);
}
public void PursuitOn()
{
flags |= behavior_type.pursuit;
}
public void ArriveOn()
{
flags |= behavior_type.arrive;
}
public void SeekOn()
{
flags |= behavior_type.seek;
}
public void FleeOn()
{
flags |= behavior_type.flee;
}
bool On(behavior_type bt)
{
return((flags & bt) == bt);
}
//this function tests if a specific bit of m_iFlags is set
private bool On(behavior_type bt) { return (m_iFlags & (int)bt) == (int)bt; }
//检测某个属性是否开启
private bool On(behavior_type type)
{
return ((m_flags & (int)type) == (int)type);
}
public void EvadeOn()
{
flags |= behavior_type.evade;
}
bool On(behavior_type type)
{
return((m_iFlags & ((int)type)) == (int)type);
}
