//Clears all pieces in a colour
//This is the core functionality for the Ceullular Automata
public void ClearColour(ColourPiece.ColourType colour)
{
for (int x = 0; x < xDim; x++)
{
for (int y = 0; y < yDim; y++)
{
//ColourType.ANY Represents the CA
//It clears colours it is swapped with
if (pieces[x, y].IsColoured() && (pieces[x, y].ColourComponent.Colour == colour ||
colour == ColourPiece.ColourType.ANY))
{
ClearPiece(x, y);
}
}
}
}
public List <GamePiece> GetMatch(GamePiece piece, int newX, int newY)
{
if (piece.IsColoured())
{
ColourPiece.ColourType colour = piece.ColourComponent.Colour;
//Lists for collating matches
List <GamePiece> horizontalPieces = new List <GamePiece>();
List <GamePiece> verticalPieces = new List <GamePiece>();
List <GamePiece> matchingPieces = new List <GamePiece>();
//First check horizontal
horizontalPieces.Add(piece);
for (int dir = 0; dir <= 1; dir++)
{
for (int xOffset = 1; xOffset < xDim; xOffset++)
{
int x;
if (dir == 0)
{ //Left
x = newX - xOffset;
}
else
{ //Right
x = newX + xOffset;
}
if (x < 0 || x >= xDim)
{
break;
}
//If pieces match, add them to the list
if (pieces[x, newY].IsColoured() && pieces[x, newY].ColourComponent.Colour == colour)
{
horizontalPieces.Add(pieces[x, newY]);
}
else
{
break;
}
}
}
if (horizontalPieces.Count >= 3)
{
//Add the hroizontal matching pieces, to the list for all matching pieces
for (int i = 0; i < horizontalPieces.Count; i++)
{
matchingPieces.Add(horizontalPieces[i]);
//Spawn a light in the corner of matching pieces
GameObject matchLight = (GameObject)Instantiate(matchingLight, horizontalPieces[i].transform.position, horizontalPieces[i].transform.rotation);
}
}
//Traverse vertically if we found a match (for L and T shapes)
if (horizontalPieces.Count >= 3)
{
for (int i = 0; i < horizontalPieces.Count; i++)
{
for (int dir = 0; dir <= 1; dir++)
{
for (int yOffset = 1; yOffset < yDim; yOffset++)
{
int y;
if (dir == 0)
{ //Up
y = newY - yOffset;
}
else
{ //Down
y = newY + yOffset;
}
if (y < 0 || y >= yDim)
{
break;
}
//If pieces match, add them to the list
if (pieces[horizontalPieces[i].X, y].IsColoured() && pieces[horizontalPieces[i].X, y].ColourComponent.Colour == colour)
{
verticalPieces.Add(pieces[horizontalPieces[i].X, y]);
}
else
{
break;
}
}
}
//Clear the list if there is no match of 3 or over
if (verticalPieces.Count < 2)
{
verticalPieces.Clear();
}
else
{
//Otherwise add pieces to matching list
for (int j = 0; j < verticalPieces.Count; j++)
{
matchingPieces.Add(verticalPieces[j]);
}
break;
}
}
}
if (matchingPieces.Count >= 3)
{
return(matchingPieces);
}
//Didn't find anything going horizontally first,
//so now check vertically
horizontalPieces.Clear();
verticalPieces.Clear();
verticalPieces.Add(piece);
for (int dir = 0; dir <= 1; dir++)
{
for (int yOffset = 1; yOffset < yDim; yOffset++)
{
int y;
if (dir == 0)
{ //Up
y = newY - yOffset;
}
else
{ //Down
y = newY + yOffset;
}
if (y < 0 || y >= yDim)
{
break;
}
//If pieces match, add them to the list
if (pieces[newX, y].IsColoured() && pieces[newX, y].ColourComponent.Colour == colour)
{
verticalPieces.Add(pieces[newX, y]);
}
else
{
break;
}
}
}
if (verticalPieces.Count >= 3)
{
//Add the vertical matching pieces, to the list for all matching pieces
for (int i = 0; i < verticalPieces.Count; i++)
{
matchingPieces.Add(verticalPieces[i]);
//Spawn a light in the corner of matching pieces
GameObject matchLight = (GameObject)Instantiate(matchingLight, verticalPieces[i].transform.position, verticalPieces[i].transform.rotation);
}
}
//Traverse horizontally if we found a match (for L and T shapes)
if (verticalPieces.Count >= 3)
{
for (int i = 0; i < verticalPieces.Count; i++)
{
for (int dir = 0; dir <= 1; dir++)
{
for (int xOffset = 1; xOffset < xDim; xOffset++)
{
int x;
if (dir == 0)
{ //Left
x = newX - xOffset;
}
else
{ //Right
x = newX + xOffset;
}
if (x < 0 || x >= xDim)
{
break;
}
//If pieces match, add them to the list
if (pieces[x, verticalPieces[i].Y].IsColoured() && pieces[x, verticalPieces[i].Y].ColourComponent.Colour == colour)
{
horizontalPieces.Add(pieces[x, verticalPieces[i].Y]);
}
else
{
break;
}
}
}
//Clear the list if there is no match of 3 or over
if (horizontalPieces.Count < 2)
{
horizontalPieces.Clear();
}
else
{
//Otherwise add pieces to matching list
for (int j = 0; j < horizontalPieces.Count; j++)
{
matchingPieces.Add(horizontalPieces[j]);
}
break;
}
}
}
if (matchingPieces.Count >= 3)
{
return(matchingPieces);
}
}
return(null);
}
