private void SetNewPositions()
{
currentDirection = potentialDirection;
Vector3 emptyPos;
Vector3 targetPos = elements[0].position + potentialDirection;
float maxDelay = iterationTime * (1 - waitingMovingRatio) * elasticityRatio;
for (int i = 0; i < elements.Count; i++)
{
var item = elements[i];
emptyPos = item.position;
float delay = maxDelay / elements.Count * i;
var newAct = MovementAct.GetAct();
newAct.Destination = targetPos;
newAct.StartPos = item.position;
newAct.MovedObject = item;
newAct.TimeInATrip = 0 - delay;
newAct.TripDuration = iterationTime * (1 - waitingMovingRatio) - maxDelay;
movements.Add(newAct);
targetPos = emptyPos;
}
}
private IEnumerator MoveElements()
{
// needed to be stored for further lenghten of the snake if a fruit will get collected during an iteration
var tailPos = elements[elements.Count - 1].position;
while (movements.Count > 0)
{
for (int i = movements.Count - 1; i >= 0; i--)
{
var item = movements[i];
item.TimeInATrip += Time.deltaTime;
float completeRatio = Mathf.Clamp01(item.TimeInATrip / item.TripDuration);
float smoothedRatio = AnimationCurve.EaseInOut(0f, 0f, 1f, 1f).Evaluate(completeRatio);
item.MovedObject.position = Vector3.Lerp(item.StartPos, item.Destination, smoothedRatio);
// rotation
Quaternion newRotation = new Quaternion();
newRotation.SetLookRotation(item.Direction, Vector3.back);
item.MovedObject.rotation = newRotation;
// remove if reached destination
if (completeRatio == 1)
{
MovementAct.Release(item);
movements.RemoveAt(i);
}
}
yield return(null);
}
// if a snake is shorter than should be due to a fruit collected or recent start - increase lenght by one element
if (elements.Count < DesiredLenght)
{
var newElement = Instantiate(snakeElementPrefab, tailPos, Quaternion.identity);
elements.Add(newElement.transform);
}
}
public static void Release(MovementAct movementAct)
{
_pool.Push(movementAct);
}