private static bool HasFeature(Block.Feature feature)
{
var a = _selectedBlocks[0].GetComponent <Block>().Features;
var b = _selectedBlocks[1].GetComponent <Block>().Features;
return(a.HasFlag(feature) || b.HasFlag(feature));
}
public Block Generate(Block.Feature features)
{
var instance = InstantiateBlock();
var block = instance.GetComponent <Block>();
block.Features = features;
return(block);
}
private bool Solve(Block.Feature current, Block.Feature expected, int row, int column)
{
if (!current.HasFlag(expected))
{
return(false);
}
if (Block.HasFeaturesPair(current, expected, Block.Feature.Top))
{
if (row - 1 >= 0 && !Block.IsEmpty(_board[row - 1, column]))
{
var next = (Block.Feature)_board[row - 1, column];
return(Solve(next, Block.Feature.Bottom, row - 1, column));
}
}
if (Block.HasFeaturesPair(current, expected, Block.Feature.Bottom))
{
if (row + 1 < _board.GetLength(0) && !Block.IsEmpty(_board[row + 1, column]))
{
var next = (Block.Feature)_board[row + 1, column];
return(Solve(next, Block.Feature.Top, row + 1, column));
}
}
if (Block.HasFeaturesPair(current, expected, Block.Feature.Left))
{
if (column - 1 >= 0 && !Block.IsEmpty(_board[row, column - 1]))
{
var next = (Block.Feature)_board[row, column - 1];
return(Solve(next, Block.Feature.Right, row, column - 1));
}
}
if (Block.HasFeaturesPair(current, expected, Block.Feature.Right))
{
if (column + 1 < _board.GetLength(1) && !Block.IsEmpty(_board[row, column + 1]))
{
var next = (Block.Feature)_board[row, column + 1];
return(Solve(next, Block.Feature.Left, row, column + 1));
}
}
return(Block.HasFeaturesPair(current, expected, Block.Feature.Target));
}
