public override IEnumerable <RunStatus> Execute(object context)
{
BTAIContext ctx = context as BTAIContext;
// time keeping
timeSinceLastChange += ctx.Dt;
// direction changing
if (timeSinceLastChange >= dirChangeTime)
{
timeSinceLastChange = 0f;
// TODO: define a double functino also
dirChangeTime = (double)RandomMath.RandomBetween((float)MinDirectionChangeTime, (float)MaxDirectionChangeTime);
// TODO: length-preservation in VelocityComp
Vector3 v = ctx.Entity.GetComponent <VelocityComp>().Velocity;
CurrentDirection = RandomMath.RandomDirection() * v.Length();
OnExecute(ctx);
}
yield return(RunStatus.Success);
}
protected override void OnNextMove()
{
base.OnNextMove();
Vector2 dir = CurrentDirection;
if (dir.Length() < 0.1f)
{
dir = Vector2.Zero;
}
else
{
// choose one direction randomly, if diagonals would be required
if (dir.X != 0f && dir.Y != 0f)
{
float r = RandomMath.RandomUnit();
if (r > 0.5f)
{
dir.X = 0f;
}
else
{
dir.Y = 0f;
}
}
dir.Normalize();
}
TargetMove = dir;
// direction changing
if (timeSinceLastChange >= dirChangeTime)
{
timeSinceLastChange = 0f;
dirChangeTime = RandomMath.RandomBetween(MinDirectionChangeTime, MaxDirectionChangeTime);
CurrentDirection = RandomMath.RandomDirection();
}
}
public override void Process(Entity entity, ThingComp tc, RandomWanderComp rwc)
{
if (!rwc.IsActive)
{
return;
}
rwc.UpdateComp(dt);
rwc.CurrentDirectionChangeTime -= dt;
Vector2 dir = rwc.CurrentDirection;
if (dir.Length() < 0.1f)
{
dir = Vector2.Zero;
}
rwc.TargetMove = dir;
// direction changing after some random time
if (rwc.CurrentDirectionChangeTime <= 0)
{
// TODO double version of randombetween
rwc.CurrentDirectionChangeTime = RandomMath.RandomBetween((float)rwc.MinDirectionChangeTime, (float)rwc.MaxDirectionChangeTime);
rwc.CurrentDirection = RandomMath.RandomDirection();
}
}
