public void SetPosition(IGameObject owner, Entity.Vector targetPosition)
{
currentPosition = targetPosition;
lastPositionUpdateTime = GlobalClock.Now;
currentVelocity.Reset();
}
public Entity.Vector GetCurrentPosition(IGameObject owner)
{
if (!currentVelocity.IsZero())
{
var now = GlobalClock.Now;
if (now != lastPositionUpdateTime)
{
var elapsed = now - lastPositionUpdateTime;
var nextPosition = currentPosition.Add(currentVelocity.Multiply(elapsed));
var currentToTarget = targetPosition.Diff(currentPosition);
var nextToTarget = targetPosition.Diff(nextPosition);
if (currentToTarget.Dot(nextToTarget) < 0)
{
currentPosition = targetPosition;
Stop(owner);
}
else
{
currentPosition = nextPosition;
}
}
lastPositionUpdateTime = now;
}
return(currentPosition);
}
public void WalkTo(IGameObject owner, Entity.Vector targetPosition)
{
this.targetPosition = targetPosition;
var diff = targetPosition.Diff(GetCurrentPosition(owner));
diff.Normalize();
lastPositionUpdateTime = GlobalClock.Now;
currentVelocity = diff.Multiply(maxVelocity);
}