public MapSegmentPathTile FindStartTile(ICollection <MapSegmentPathTile> tiles, MapSegmentDirection direction)
{
foreach (var tile in tiles)
{
if (MapSegmentPathTile.IsFree(tile.NeighbourUp))
{
return(tile);
}
}
// In theory; this is not possible
return(null);
}
public Point GetEndPoint(MapSegmentDirection direction)
{
if (direction == MapSegmentDirection.Up)
{
return(Point + UP_END_OFFSET);
}
else if (direction == MapSegmentDirection.Right)
{
return(Point + RIGHT_END_OFFSET);
}
else if (direction == MapSegmentDirection.Down)
{
return(Point + DOWN_END_OFFSET);
}
else if (direction == MapSegmentDirection.Left)
{
return(Point + LEFT_END_OFFSET);
}
return(Point);
}
public MapSegmentPathTile GetNeighbour(MapSegmentDirection direction)
{
MapSegmentPathTile result = null;
if (direction == MapSegmentDirection.Up)
{
result = NeighbourUp;
}
else if (direction == MapSegmentDirection.Down)
{
result = NeighbourDown;
}
else if (direction == MapSegmentDirection.Left)
{
result = NeighbourLeft;
}
else if (direction == MapSegmentDirection.Right)
{
result = NeighbourRight;
}
return(result);
}
public List <Vector2> GetGroupPoints(ICollection <MapSegmentPathTile> tiles, MapSegmentPathTile startTile, MapSegmentDirection startDirection)
{
var result = new List <Vector2>();
var startNode = new MapSegmentTraverseResult {
PathTile = startTile, Direction = startDirection
};
var currentNode = startNode;
var point = startNode.PathTile.GetStartPoint(startDirection).ToVector2();
result.Add(point);
while (!CheckTerminationCondition(currentNode, startNode, result))
{
point = currentNode.PathTile.GetEndPoint(currentNode.Direction).ToVector2();
result.Add(point);
currentNode = GetNextNode(currentNode);
}
return(result);
}
public bool IsNeighbourFree(MapSegmentDirection direction)
{
var tile = GetNeighbour(direction);
return(IsFree(tile));
}
