// Add a little variation into the steering.
private Vector2 Wander()
{
// Update wanderTheta.
wanderTheta += SlagMath.GenerateGaussianNoise(WANDER_VARIANCE, GameResources.ActorManager.Random);
while (wanderTheta > MathHelper.Pi)
{
wanderTheta -= MathHelper.TwoPi;
}
while (wanderTheta < -MathHelper.Pi)
{
wanderTheta += MathHelper.TwoPi;
}
Vector2 newHeading = Vector2.UnitY * WANDER_DISTANCE +
new Vector2((float)(-Math.Sin(wanderTheta)), (float)(Math.Cos(wanderTheta))) * WANDER_RADIUS;
if (newHeading.X == 0.0f && newHeading.Y == 0.0f)
{
return(Vector2.Zero);
}
newHeading.Normalize();
return(newHeading);
}
public override void Enter(SteeringBlender steering, Actor owner, IAgentStateManager agent)
{
ZombieSkillSet zss = owner.GetBehaviorThatImplementsType <ZombieSkillSet>();
//zss.RangedSkill.CurrentOperation = WeaponFunctions.Neutral;
BipedControllerComponent bcc = owner.GetComponent <BipedControllerComponent>(ActorComponent.ComponentType.Control);
zss.RangedSkill.UpdateInputState(false, bcc);
zss.MeleeSkill.UpdateInputState(false, bcc);
int opponentId = agent.GetProperty <int>(AgentPropertyName.ActiveOpponent);
Actor opponent = GameResources.ActorManager.GetActorById(opponentId);
BipedControllerComponent opponentBcc = opponent.GetComponent <BipedControllerComponent>(ActorComponent.ComponentType.Control);
BepuVec3 towardOpponent = opponentBcc.Controller.Body.Position - bcc.Controller.Body.Position;
towardOpponent.Y = 0.0f;
towardOpponent.Normalize();
const float MOVE_SECS_MAX = 2.5f;
const float MOVE_SECS_MIN = 0.5f;
float moveRand = SlagMath.Get0To1UpperFloat(GameResources.ActorManager.Random);
switch (mMovementType)
{
case MovementType.Lateral:
BepuVec3 right = BepuVec3.Cross(towardOpponent, BepuVec3.Up);
// Make the random symmetrical about 0.5f so that we can divide it into two equal segments for right and left.
moveRand = Math.Abs(moveRand - 0.5f);
mDurationTicks = (long)(TimeSpan.TicksPerSecond * (moveRand * 2.0f * (MOVE_SECS_MAX - MOVE_SECS_MIN) + MOVE_SECS_MIN));
steering.Target = BepuConverter.Convert(bcc.Controller.Body.Position + (moveRand > 0.5f ? right : -right) * 100.0f);
break;
case MovementType.Close:
steering.Target = BepuConverter.Convert(opponentBcc.Controller.Body.Position + towardOpponent * 100.0f);
mDurationTicks = (long)(TimeSpan.TicksPerSecond * (moveRand * (MOVE_SECS_MAX - MOVE_SECS_MIN) + MOVE_SECS_MIN));
break;
case MovementType.Retreat:
steering.Target = BepuConverter.Convert(opponentBcc.Controller.Body.Position - towardOpponent * 100.0f);
mDurationTicks = (long)(TimeSpan.TicksPerSecond * (moveRand * (MOVE_SECS_MAX - MOVE_SECS_MIN) + MOVE_SECS_MIN));
break;
default:
steering.Target = BepuConverter.Convert(towardOpponent * 100.0f);
mDurationTicks = 0;
break;
}
steering.Weights[(int)SteeringBlender.WeightType.Arrive] = 0.0f;
steering.Weights[(int)SteeringBlender.WeightType.Seek] = 0.67f;
steering.Weights[(int)SteeringBlender.WeightType.Wander] = 0.33f;
steering.Weights[(int)SteeringBlender.WeightType.Wait] = 0.0f;
steering.Urgency = 1.0f;
steering.ForceScale = 1.0f;
}
public override void Enter(SteeringBlender steering, Actor owner, IAgentStateManager agent)
{
float theta = SlagMath.Get0To1UpperFloat(GameResources.ActorManager.Random) * MathHelper.TwoPi;
BipedControllerComponent bcc = owner.GetComponent <BipedControllerComponent>(ActorComponent.ComponentType.Control);
steering.Weights[(int)SteeringBlender.WeightType.Arrive] = 0.0f;
steering.Weights[(int)SteeringBlender.WeightType.Seek] = 1.0f;
steering.Weights[(int)SteeringBlender.WeightType.Wander] = 0.0f;
steering.Weights[(int)SteeringBlender.WeightType.Wait] = 0.0f;
steering.Urgency = 1.0f;
steering.Target = BepuConverter.Convert(bcc.Controller.Body.Position) + new Vector3((float)(Math.Sin(theta)), 0.0f, (float)(Math.Cos(theta)));
steering.ForceScale = Single.Epsilon;
}
public ZombieWanderState(float avgDurationSeconds)
{
mDurationTicks = (long)(TimeSpan.TicksPerSecond * (Math.Max(avgDurationSeconds + SlagMath.GenerateGaussianNoise(avgDurationSeconds * avgDurationSeconds * 0.25f,
GameResources.ActorManager.Random), 0.25f)));
}
