private CollapseTiles CreateNewTileInSpecificColumns(IEnumerable<int> columnsWithMissingTile)
{
CollapseTiles newTileInfo = new CollapseTiles();
foreach (int column in columnsWithMissingTile) {
var emptyItems = board.GetAllEmptyInColumn(column);
foreach (var item in emptyItems) {
var go = randomTile();
GameObject newTile = Instantiate(go, SpawnPositions[column], Quaternion.identity) as GameObject;
newTile.GetComponent<TileInfo>().assign(go.GetComponent<TileInfo>().type, item.row, item.column);
if (Constants.rows - item.row > newTileInfo.maxDistance) {
newTileInfo.maxDistance = Constants.rows - item.row;
}
board[item.row, item.column] = newTile;
NetworkServer.Spawn(newTile);
newTileInfo.addTile(newTile);
}
}
return newTileInfo;
}
public CollapseTiles Collapse(IEnumerable<int> columns)
{
CollapseTiles collapseInfo = new CollapseTiles();
///search in every column
foreach (var column in columns) {
//begin from bottom row
for (int row = 0; row < Constants.rows - 1; row++) {
//if you find a null item
if (grid[row, column] == null) {
//start searching for the first non-null
for (int row2 = row + 1; row2 < Constants.rows; row2++) {
//if you find one, bring it down (i.e. replace it with the null you found)
if (grid[row2, column] != null) {
grid[row, column] = grid[row2, column];
grid[row2, column] = null;
//calculate the biggest distance
if (row2 - row > collapseInfo.maxDistance)
collapseInfo.maxDistance = row2 - row;
//assign new row and column (name does not change)
grid[row, column].GetComponent<TileInfo>().row = row;
grid[row, column].GetComponent<TileInfo>().column = column;
collapseInfo.addTile(grid[row, column]);
break;
}
}
}
}
}
return collapseInfo;
}
