private void CompareAndBreak(Block block, Block other, Direction dir)
{
if (block.SameColor(other))
{
if (block.IsGrouped() == true)
{
QueueGroup(block, Direction.none);
}
else
{
//Queue original block
QueueBlock(block, Direction.none);
}
//Queue other block
if (other.IsGrouped() == true)
{
QueueGroup(other, dir);
}
else
{
//Queue other
QueueBlock(other, dir);
}
}
}
public BlockPosition BlockPos(Block block)
{
bool up = false, right = false, down = false, left = false;
bool upperLeft = false, upperRight = false, lowerLeft = false, lowerRight = false;
int adjacentCount = 0;
Block other = block.SameAdjacent(Direction.up);
//Check directly adjacent blocks
if (other != null && other.IsGrouped() == false)
{
adjacentCount++;
up = true;
}
other = block.SameAdjacent(Direction.right);
if (other != null && other.IsGrouped() == false)
{
adjacentCount++;
right = true;
}
other = block.SameAdjacent(Direction.down);
if (other != null && other.IsGrouped() == false)
{
adjacentCount++;
down = true;
}
other = block.SameAdjacent(Direction.left);
if (other != null && other.IsGrouped() == false)
{
adjacentCount++;
left = true;
}
//If 3 or more adjacent, check diagonals too
if (adjacentCount >= 3)
{
//check upper diagonals
other = GetBlock(block.X - 1, block.Y + 1);
if (block.SameColor(other) && other.IsGrouped() == false)
{
upperLeft = true;
}
other = GetBlock(block.X + 1, block.Y + 1);
if (block.SameColor(other) && other.IsGrouped() == false)
{
upperRight = true;
}
//Check lower diagonals
other = GetBlock(block.X - 1, block.Y - 1);
if (block.SameColor(other) && other.IsGrouped() == false)
{
lowerLeft = true;
}
other = GetBlock(block.X + 1, block.Y - 1);
if (block.SameColor(other) && other.IsGrouped() == false)
{
lowerRight = true;
}
}
if (adjacentCount == 2)
{
//Corner block
if (up && right)
{
//bottom left
return(BlockPosition.bottomLeft);
}
else if (right && down)
{
//top left
return(BlockPosition.topLeft);
}
else if (down && left)
{
// top right
return(BlockPosition.topRight);
}
else if (left && up)
{
//bottom right
return(BlockPosition.bottomRight);
}
//3 blocks in a row
}
else if (adjacentCount == 3)
{
//T shape
//Edge of rect
if (up && right && down)
{
//left edge
if (upperRight && lowerRight)
{
return(BlockPosition.left);
}
//bottom left
if (upperRight)
{
return(BlockPosition.bottomLeft);
}
//top right
if (lowerRight)
{
return(BlockPosition.topLeft);
}
}
else if (right && down && left)
{
//top edge
if (lowerLeft && lowerRight)
{
return(BlockPosition.top);
}
//top right
if (lowerLeft)
{
return(BlockPosition.topRight);
}
//top left
if (lowerRight)
{
return(BlockPosition.topLeft);
}
}
else if (down && left && up)
{
//right edge
if (upperLeft && lowerLeft)
{
return(BlockPosition.right);
}
//bottom right
if (upperLeft)
{
return(BlockPosition.bottomRight);
}
//top right
if (lowerLeft)
{
return(BlockPosition.topRight);
}
}
else if (left && up && right)
{
//bottom edge
if (upperLeft && upperRight)
{
return(BlockPosition.bottom);
}
//bottom left corner
if (upperRight)
{
return(BlockPosition.bottomLeft);
}
//bottom right corner
if (upperLeft)
{
return(BlockPosition.bottomRight);
}
}
}
else if (adjacentCount == 4)
{
//+ shape
//+ shape + 1 corner = group
if (upperLeft || upperRight || lowerLeft || lowerRight)
{
return(BlockPosition.middle);
}
//Middle block of group
if (upperLeft && upperRight && lowerLeft && lowerRight)
{
return(BlockPosition.middle);
}
}
return(BlockPosition.original);
}
