private bool ValidateTilePlacement(TilePlacement tilePlacement, DirectionEnum direction)
{
//check to see if they are trying to place a tile on top of a tile that already exists
if (_tilePlacements.Any(tp => tp.XCoord == tilePlacement.XCoord && tp.YCoord == tilePlacement.YCoord))
{
//There is already a tile at this location
return(false);
}
var tiles = GetTilesInDirection(tilePlacement, direction);
if (tiles.Count == 0)
{
//This direction is valid because there are no tiles
return(true);
}
if (tiles.Any(t => t.Shape == tilePlacement.Tile.Shape && t.Color == tilePlacement.Tile.Color))
{
//If we find any tiles with the same shape and same color the turn is invalid
return(false);
}
if (tiles.Count == 1)
{
return(tiles[0].Color == tilePlacement.Tile.Color || tiles[0].Shape == tilePlacement.Tile.Shape);
}
//Check if we are validating against Shape or Color
if (tiles.Any(t => t.Color != tiles[0].Color))
{
//Validate same shape different color
//If we find any tiles with a different shape the turn is invalid
return(tiles.All(t => t.Shape == tilePlacement.Tile.Shape));
}
else
{
//Or validate same color different shape
//If we find any tiles with a different color the turn is invalid
return(tiles.All(t => t.Color == tilePlacement.Tile.Color));
}
}
public TilePlacement(TilePlacement tilePlacement)
{
Tile = tilePlacement.Tile;
XCoord = tilePlacement.XCoord;
YCoord = tilePlacement.YCoord;
}
private List <Tile> GetTilesInDirection(TilePlacement tilePlacement, DirectionEnum direction)
{
var tiles = new List <Tile>();
var hitEmptyTilePlacement = false;
switch (direction)
{
case DirectionEnum.Horizontal:
var xCoordIndex = tilePlacement.XCoord;
//Get tiles to the left
do
{
--xCoordIndex;
var lPlacement = _tilePlacements.SingleOrDefault(tp => tp.XCoord == xCoordIndex && tp.YCoord == tilePlacement.YCoord);
if (lPlacement == null)
{
hitEmptyTilePlacement = true;
}
else
{
tiles.Add(lPlacement.Tile);
}
} while (hitEmptyTilePlacement == false);
//Get tiles to the right
xCoordIndex = tilePlacement.XCoord;
hitEmptyTilePlacement = false;
do
{
++xCoordIndex;
var rPlacement = _tilePlacements.SingleOrDefault(tp => tp.XCoord == xCoordIndex && tp.YCoord == tilePlacement.YCoord);
if (rPlacement == null)
{
hitEmptyTilePlacement = true;
}
else
{
tiles.Add(rPlacement.Tile);
}
} while (hitEmptyTilePlacement == false);
break;
case DirectionEnum.Vertical:
var yCoordIndex = tilePlacement.YCoord;
//Get tiles above
do
{
++yCoordIndex;
var uPlacement = _tilePlacements.SingleOrDefault(tp => tp.XCoord == tilePlacement.XCoord && tp.YCoord == yCoordIndex);
if (uPlacement == null)
{
hitEmptyTilePlacement = true;
}
else
{
tiles.Add(uPlacement.Tile);
}
} while (hitEmptyTilePlacement == false);
//Get tiles below
yCoordIndex = tilePlacement.YCoord;
hitEmptyTilePlacement = false;
do
{
--yCoordIndex;
var dPlacement = _tilePlacements.SingleOrDefault(tp => tp.XCoord == tilePlacement.XCoord && tp.YCoord == yCoordIndex);
if (dPlacement == null)
{
hitEmptyTilePlacement = true;
}
else
{
tiles.Add(dPlacement.Tile);
}
} while (hitEmptyTilePlacement == false);
break;
}
return(tiles);
}
