public Path(TilePos initialPosition, TilePos initialDirection)
{
Cost = 0;
Steps = new List <Step> {
new Step(initialPosition, initialDirection, false)
};
}
private void AddNewPathToContinue(TilePos pos, TilePos moveDirection, Path path)
{
var rotationDifference = path.GetRotationDifference(moveDirection);
var stepCost = 1 + rotationDifference;
_pathsToContinue.Add(path.Branch(stepCost, pos, moveDirection));
}
public static Entity PushableItemAt(this Pool pool, TilePos position, TilePos moveDirection)
{
var newPosition = position + moveDirection;
var entitiesAtPosition = pool.GetEntitiesAt(position, x => x.isBox).ToList();
var openSpaceAtNextPosition = pool.OpenTileAt(newPosition);
var stillInsidePuzzle = pool.IsStillInsideSamePuzzle(position, newPosition);
return(openSpaceAtNextPosition && stillInsidePuzzle?entitiesAtPosition.SingleOrDefault() : null);
}
public static bool KnockObjectsInFront(this Pool pool, TilePos position, TilePos forwardDirection, bool immediate, float knockWait)
{
var knockable = pool.GetEntityAt(position + forwardDirection, x => x.isBlockingTile);
if (knockable != null)
{
knockable.ReplaceKnocked(forwardDirection, immediate, knockWait);
return(true);
}
return(false);
}
public static bool IsStillInsideSamePuzzle(this Pool pool, TilePos currentPosition, TilePos nextPosition)
{
var currentPuzzle = pool.GetEntityAt(currentPosition, x => x.isPuzzleArea && x.hasBossConnection);
var nextPuzzle = pool.GetEntityAt(nextPosition, x => x.isPuzzleArea && x.hasBossConnection);
if (currentPuzzle != null && nextPuzzle != null)
{
return(nextPuzzle.bossConnection.BossId == currentPuzzle.bossConnection.BossId);
}
return(currentPuzzle == nextPuzzle);
}
public static List <Entity> GetEntitiesAt(this Pool pool, TilePos position, Func <Entity, bool> entityMatcher = null)
{
if (!pool.objectPositionCache.Cache.ContainsKey(position))
{
return(new List <Entity>());
}
return(pool.objectPositionCache
.Cache[position]
.Where(x => x.hasGameObject && !x.isDestroyed && (entityMatcher == null || entityMatcher(x)))
.ToList());
}
public static Entity GetEntityAt(this Pool pool, TilePos position, Func <Entity, bool> entityMatcher = null)
{
var entitiesAtPosition = pool
.GetEntitiesAt(position, entityMatcher)
.ToList();
if (entitiesAtPosition.Count() > 1)
{
throw new MoreThanOneMatchException(entitiesAtPosition);
}
return(entitiesAtPosition.SingleOrDefault());
}
public Path CalculateMoveToTarget(
TilePos initialPosition,
TilePos initialDirection,
TilePos targetPosition)
{
_targetPosition = targetPosition;
var victoryPath = new Path(initialPosition, initialDirection);
SetInitialState(initialPosition, initialDirection);
while (_pathsToContinue.Count > 0)
{
var path = PopPathToContinue();
var pos = path.GetLastPosition();
if (pos == _targetPosition)
{
victoryPath = SelectLateTurnPathWithSameCost(path);
break;
}
foreach (var moveDirection in LocalDirections.GetAll())
{
var newPos = pos + moveDirection;
if (_walkValidator.CanMoveTo(newPos) && !_visited.Contains(newPos))
{
AddNewPathToContinue(newPos, moveDirection, path);
}
}
_visited.Add(pos);
OrderByCost();
}
victoryPath.Steps.RemoveAt(0);
return(victoryPath);
}
public bool Equals(TilePos other)
{
return(X == other.X && Z == other.Z);
}
public int RotationDifference(TilePos otherDirection)
{
return(Mathf.Max(Mathf.Abs(X - otherDirection.X), Mathf.Abs(Z - otherDirection.Z)));
}
public bool CanMoveTo(TilePos position)
{
return(_pool.OpenTileAt(position));
}
private Entity CreateEntity(TilePos position)
{
return(_pool.CreateEntity().AddPosition(position).AddRotation(0));
}
public Path Branch(int cost, TilePos position, TilePos direction)
{
return(new Path(this, cost, position, direction));
}
public int GetRotationDifference(TilePos direction)
{
var lastDirection = Steps[Steps.Count - 1].Direction;
return(lastDirection.RotationDifference(direction));
}
public static void DoForAllAtPosition(this Pool pool, TilePos position, Action <Entity> entityAction)
{
pool.objectPositionCache.Cache[position].ForEach(entityAction);
}
protected Path(Path path, int cost, TilePos position, TilePos direction)
{
Cost = path.Cost + cost;
Steps = path.Steps.Concat(new[] { new Step(position, direction, path.GetRotationDifference(direction) > 0) }).ToList();
}
public Step(TilePos position, TilePos direction, bool turned)
{
Position = position;
Direction = direction;
Turned = turned;
}
public static Entity GetAreaAt(this Pool pool, TilePos position)
{
return(pool.GetEntityAt(position, x => x.gameObject.Type == ObjectType.Area));
}
private void SetInitialState(TilePos initialPosition, TilePos initialDirection)
{
_visited = new HashSet <TilePos>();
_pathsToContinue = new List <Path>();
_pathsToContinue.Add(new Path(initialPosition, initialDirection));
}
public static int ToRotation(TilePos direction)
{
return(DirectionRotation.Single(x => x.Item1 == direction).Item2);
}
public static bool OpenTileAt(this Pool pool, TilePos position)
{
var entitiesAtPosition = pool.GetEntitiesAt(position).ToList();
return(entitiesAtPosition.Any(x => x.gameObject.Type == ObjectType.Tile) && entitiesAtPosition.All(x => !x.isBlockingTile));
}