private int CalculateDisplacementFactor(RunnerLanes destinationLane)
{
//Lane mask: 111
//Left sample -> 001 ==1<<0 -> displacement factor = -1
int displacementFactor = 0;
int laneCount = Enum.GetValues(typeof(RunnerLanes)).Length;
int laneShiftFactor = 0;
while (laneShiftFactor < laneCount)
{
RunnerLanes lane = (RunnerLanes)(1 << laneShiftFactor);
if (lane == destinationLane)
{
//-1 is harcoded for 3 lanes. This should be refactore may more lanes be added to the game
displacementFactor = laneShiftFactor - 1;
break;
}
laneShiftFactor++;
}
return(displacementFactor);
}
/// <summary>
/// Gets a random lane from the RunnerLanes enum, making sure it is not included in the current mask
/// </summary>
/// <param name="currentMask"></param>
/// <returns></returns>
private static RunnerLanes GetRandomLane(RunnerLanes currentMask, Array runnerLanes, Random randomGenerator)
{
RunnerLanes newLane;
do
{
newLane = (RunnerLanes)runnerLanes.GetValue(randomGenerator.Next(runnerLanes.Length));
}while ((currentMask & newLane) != 0);
return(newLane);
}
/// <summary>
/// Generates a valid obstacle mask in raw format
/// </summary>
/// <returns></returns>
public static RunnerLanes GenerateRandomObstacleMask(int activeLaneCount)
{
Array runnerLanes = Enum.GetValues(typeof(RunnerLanes));
Random randomLaneGenerator = new Random();
RunnerLanes mask = 0;
for (int i = 0; i < activeLaneCount; i++)
{
mask |= GetRandomLane(mask, runnerLanes, randomLaneGenerator);
}
return(mask);
}
/// <summary>
/// Moves player one step to the right
/// </summary>
public void MoveRight()
{
if (currentLane == RunnerLanes.Right)
{
return;
}
RunnerLanes destinationLane = (currentLane == RunnerLanes.Left) ? RunnerLanes.Center : RunnerLanes.Right;
if (lateralMovementCoroutine != null)
{
StopCoroutine(lateralMovementCoroutine);
}
lateralMovementCoroutine = StartCoroutine(MoveSmooth(transform, destinationLane));
}
private void InitializePlayer()
{
//Initialize Player position to middle lane:
currentLane = RunnerLanes.Center;
transform.position = Vector3.zero;
currentShapeIndex = 0;
//Initialize shapes
shapeList = new List <GameObject>();
for (int i = 0; i < shapeParent.childCount; i++)
{
GameObject shape = shapeParent.GetChild(i).gameObject;
shape.SetActive(i == currentShapeIndex);
shapeList.Add(shape);
}
deathParticleSystem.SetActive(false);
}
/// <summary>
/// Generates a formatted Obstacle maske ready to be used
/// </summary>
/// <param name="gateCount"></param>
/// <returns></returns>
public static ObstacleMask GenerateObstacleMask(int gateCount = 1)
{
RunnerLanes maskSeed = GenerateRandomObstacleMask(gateCount);
BitArray b = new BitArray(new byte[] { (byte)maskSeed });
bool[] bits = new bool[b.Count];
b.CopyTo(bits, 0);
byte[] bitValues = bits.Select(bit => (byte)(bit ? 1 : 0)).ToArray();
// index 0 = less significant bit. Here I should retrieve indexes 0-2 (both included)
//index 0 = Left
//index 1 = Center
//index 2 = Right
ObstacleMask mask = ObstacleMask.CreateInitializedObstacleMask(
bitValues[0],
bitValues[1],
bitValues[2]);
return(mask);
}
private IEnumerator MoveSmooth(Transform target, RunnerLanes destinationLane)
{
PlaySound(laneChangeClip);
int displacementFactor = CalculateDisplacementFactor(destinationLane);
Vector3 destination = transform.position;
destination.x = displacementFactor * laneWidth;
currentLane = destinationLane; //Set it here so if user swipes again, the player moves accordingly
float elapsedTime = 0;
Vector3 velocity = Vector3.one;
while (elapsedTime <= 1)
{
transform.position = Vector3.SmoothDamp(target.position, destination, ref velocity, movementDuration);
elapsedTime += Time.deltaTime;
yield return(null);
}
lateralMovementCoroutine = null;
}
