/// <summary>
/// Moves each ghost based on the chosen IntersectionTiles
/// </summary>
public void Move()
{
if (_targetIntersectionTile != _currentIntersectionTile && _targetIntersectionTile != null && !IsInGhostHouse)
{
if (TargetWasOvershot())
{
_currentIntersectionTile = _targetIntersectionTile;
transform.localPosition = _currentIntersectionTile.transform.localPosition;
if (_currentIntersectionTile.IsPortal)
{
transform.localPosition = _currentIntersectionTile.OppositePortal.transform.localPosition;
_currentIntersectionTile = _currentIntersectionTile.OppositePortal;
}
if (_currentIntersectionTile.IsGhostHouseEntrance && CurrentGhostMode == GhostMode.Eaten)
{
ChangeGhostMode(_previousGhostMode);
}
_targetIntersectionTile = ChooseNextTile();
_previousIntersectionTile = _currentIntersectionTile;
_currentIntersectionTile = null;
}
else
{
transform.localPosition += Helpers.GetVectorDirection(_currentMoveDirection) * NormalSpeed * Time.deltaTime;
}
}
}
private void Awake()
{
_spriteAnimator = GetComponentInChildren <Animator>();
_player = GameObject.FindGameObjectWithTag("Player");
_playerController = _player.GetComponent <PlayerController>();
// sets the first movement of each ghost to scatter, using the out of bounds tiles
CurrentGhostMode = GhostMode.Scatter;
GetScatterTile();
var nextTile = Helpers.GetIntersectionTile(transform.localPosition);
if (nextTile != null)
{
_currentIntersectionTile = nextTile;
}
// only blinky starts outside the ghost house, and moves left first
// the other 3 ghosts need to leave the ghost house first
if (IsInGhostHouse)
{
_currentMoveDirection = MoveDirection.Up;
_targetIntersectionTile = _currentIntersectionTile.UpNeighbor;
}
else
{
_currentMoveDirection = MoveDirection.Left;
_targetIntersectionTile = ChooseNextTile();
}
_previousIntersectionTile = _currentIntersectionTile;
_previousMoveSpeed = NormalSpeed;
}
/// <summary>
/// Chooses which tile the Ghost needs to travel based on less distance overall
/// </summary>
/// <returns>The next IntersectionTile for the Ghost to travel</returns>
private IntersectionTile ChooseNextTile()
{
IntersectionTile targetNode = null;
var leastDistance = 999999f;
// gets the tile based on the TargetTile function
var targetTile = GetGhostTargetTile();
// searches for all possible tiles to travel and chooses the one that makes the overall travel shorter
for (var i = 0; i < _currentIntersectionTile.Neighbors.Length; i++)
{
if (_currentIntersectionTile.NeighborDirections[i] != Vector3.zero &&
_currentIntersectionTile.NeighborDirections[i] != Helpers.GetVectorDirection(_currentMoveDirection) * -1)
{
var distance = Helpers.GetDistanceBetweenVectors
(_currentIntersectionTile.Neighbors[i].transform.localPosition, targetTile);
if (distance < leastDistance)
{
leastDistance = distance;
targetNode = _currentIntersectionTile.Neighbors[i];
_currentMoveDirection = Helpers.GetDirectionFromVector(_currentIntersectionTile.NeighborDirections[i]);
}
}
}
return(targetNode);
}
/// <summary>
/// Moves the player accordingly to the target tiles
/// </summary>
public void Move()
{
if (_targetIntersectionTile != _currentIntersectionTile && _targetIntersectionTile != null)
{
if (_nextMoveDirection == Helpers.GetOppositeDirection(_currentMoveDirection))
{
_currentMoveDirection = Helpers.GetOppositeDirection(_currentMoveDirection);
var tempTile = _targetIntersectionTile;
_targetIntersectionTile = _previousIntersectionTile;
_previousIntersectionTile = tempTile;
}
if (TargetWasOvershot())
{
_currentIntersectionTile = _targetIntersectionTile;
transform.localPosition = _currentIntersectionTile.transform.localPosition;
if (_currentIntersectionTile.IsPortal)
{
transform.localPosition = _currentIntersectionTile.OppositePortal.transform.localPosition;
_currentIntersectionTile = _currentIntersectionTile.OppositePortal;
}
var nextTile = MoveToNeighbor(_nextMoveDirection);
if (nextTile != null)
{
_currentMoveDirection = _nextMoveDirection;
}
if (nextTile == null)
{
nextTile = MoveToNeighbor(_currentMoveDirection);
}
if (nextTile != null)
{
_targetIntersectionTile = nextTile;
_previousIntersectionTile = _currentIntersectionTile;
_currentIntersectionTile = null;
}
else
{
_currentMoveDirection = MoveDirection.Stale;
_playerAnimator.speed = 0f;
}
}
else
{
transform.localPosition += Helpers.GetVectorDirection(_currentMoveDirection) * Speed * Time.deltaTime;
_playerAnimator.speed = 1f;
}
}
}
private void Awake()
{
_playerAnimator = GetComponentInChildren <Animator>();
var nextTile = Helpers.GetIntersectionTile(transform.localPosition);
if (nextTile != null)
{
_currentIntersectionTile = nextTile;
}
CurrentMoveOrientation = MoveDirection.Left;
ChangePosition(MoveDirection.Left);
}
/// <summary>
/// Changes player position based on the next MoveDirection
/// </summary>
/// <param name="direction">The next MoveDirection to travel</param>
private void ChangePosition(MoveDirection direction)
{
if (direction != _currentMoveDirection)
{
_nextMoveDirection = direction;
}
if (_currentIntersectionTile != null)
{
var nextTile = MoveToNeighbor(direction);
if (nextTile != null)
{
_currentMoveDirection = direction;
_targetIntersectionTile = nextTile;
_previousIntersectionTile = _currentIntersectionTile;
_currentIntersectionTile = null;
}
}
}
