public void Update(GameTime gameTime, SpeedAction speedAction, TurningAction turningAction)
{
CurrentLapTime += gameTime.ElapsedGameTime;
UpdateDirection(turningAction);
UpdatePosition(speedAction);
}
public static void doDone(TurningAction actionObject)
{
ActorView entity = SceneViews.instance.getCurFBScene().getActor(actionObject.objectID);
Quaternion end = Quaternion.LookRotation(new Vector3(actionObject.endDirection.x, 0, actionObject.endDirection.y));
entity.setRotation(end);
}
private void UpdateDirection(TurningAction turningAction)
{
switch (turningAction)
{
case TurningAction.TurnRight:
{
if (currentTurningAngle < 0)
{
currentTurningAngle += TurnSpeed * 10;
}
else
{
currentTurningAngle += TurnSpeed;
}
break;
}
case TurningAction.TurnLeft:
{
if (currentTurningAngle > 0)
{
currentTurningAngle -= TurnSpeed * 10;
}
else
{
currentTurningAngle -= TurnSpeed;
}
break;
}
case TurningAction.None:
{
if (Math.Abs(Direction) > 0)
{
currentTurningAngle = MathHelper.Lerp(currentTurningAngle, 0, 0.1f);
}
break;
}
default:
throw new ArgumentOutOfRangeException(nameof(turningAction), turningAction, null);
}
Direction = MathHelper.Lerp(Direction, Direction + currentTurningAngle, CurrentSpeed);
DirectionVector = Vector2.Transform(-Vector2.UnitY, Matrix.CreateRotationZ(Direction));
perpendicularDirectionVector = new Vector2(-DirectionVector.Y, DirectionVector.X);
}
public static void doProgress(TurningAction actionObject, float progress)
{
if (actionObject.ignoreTimeAction)
{
return;
}
ActorView entity = SceneViews.instance.getCurFBScene().getActor(actionObject.objectID);
Quaternion start = Quaternion.LookRotation(new Vector3(actionObject.startDirection.x, 0, actionObject.startDirection.y));
Quaternion end = Quaternion.LookRotation(new Vector3(actionObject.endDirection.x, 0, actionObject.endDirection.y));
//获取本次移动位置
Quaternion thisEndRotation = getRotatingDirection(start, end, progress);
entity.setRotation(thisEndRotation);
}
