// Make a copy of the block rotated 90 degrees clockwise.
public Block RotatedCopy()
{
Block result = new Block();
result.width = height;
result.height = width;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
result.shape[result.width - 1 - y, x] = shape[x, y];
}
}
return result;
}
public static Block[] MakeSet(int type, params string[] shape)
{
Block[] result = new Block[4];
result[0] = new Block(type, shape);
for (int i = 1; i < 4; i++)
{
result[i] = result[i - 1].RotatedCopy();
}
return result;
}
// Draw blocks that haven't dropped yet.
private void DrawBlock(Block block, int x, int y)
{
for (int blockY = 0; blockY < block.Height; blockY++)
{
for (int blockX = 0; blockX < block.Width; blockX++)
{
if (block[blockX, blockY] != 0)
{
DrawCell(block[blockX, blockY], x + blockX, y + blockY);
}
}
}
}
private void PasteBlock(Block block, int x, int y)
{
for (int blockY = 0; blockY < block.Height; blockY++)
{
for (int blockX = 0; blockX < block.Width; blockX++)
{
if (block[blockX, blockY] != 0)
{
field[x + blockX, y + blockY] = block[blockX, blockY];
}
}
}
}
private bool BlockFits(Block block, int x, int y)
{
for (int blockY = 0; blockY < block.Height; blockY++)
{
for (int blockX = 0; blockX < block.Width; blockX++)
{
if (block[blockX, blockY] != 0 && field[x + blockX, y + blockY] != 0)
{
return false;
}
}
}
return true;
}