// the diagonal fills are ... well position needs to
// be accounted for ...
//--------------------------------------------------------------
internal bool GetViaFill2(ref int xofs, ref int yofs, Local.Dirs direction, int scale, out Cell result)
{
// via vills are done when placing a cell that exits in 'direction'
// the xofs should be applied to the x,y of the last cell - the one that
// is exiting in 'direction'
// layers will consider fills as temporary and auto trash them when unwinding.
// Any cell may call GetViaFill, GetViaFill2 in exit direction,
// a direction which does not require a fill will result in NULL
// otherwise the information from this should be saved, and somewhat attached
// to the peice just layed.
result = generic_cell;
switch (direction)
{
case Local.Dirs.UpLeft:
(xofs) = -1;
(yofs) = 0;
return(true); //GetCell( 4, 1, scale );
case Local.Dirs.DownRight:
(xofs) = 0;
(yofs) = 1;
return(true); //GetCell( 4, 1, scale );
case Local.Dirs.UpRight:
(xofs) = 1;
(yofs) = 0;
return(true); //GetCell( 2, 1, scale );
case Local.Dirs.DownLeft:
(xofs) = 0;
(yofs) = 1;
return(true); //GetCell( 2, 1, scale );
}
return(false);
}
//--------------------------------------------------------------
internal bool GetViaFill1(ref int xofs, ref int yofs, Local.Dirs direction, int scale, out Cell result)
{
result = generic_cell;
(xofs) = 0;
(yofs) = 0;
switch (direction)
{
case Local.Dirs.UpLeft:
(xofs) = 0;
(yofs) = -1;
//result = GetCell( 5, 0, scale );
return(true); //
case Local.Dirs.DownRight:
(xofs) = 1;
(yofs) = 0;
return(true); //GetCell( 5, 0, scale );
case Local.Dirs.UpRight:
(xofs) = 0;
(yofs) = -1;
return(true); //GetCell( 1, 0, scale );
case Local.Dirs.DownLeft:
(xofs) = -1;
(yofs) = 0;
return(true); //GetCell( 1, 0, scale );
}
return(false);
}
//--------------------------------------------------------------
internal Cell GetViaStart(Local.Dirs direction, int scale)
{
// from direction...
switch (direction)
{
case Local.Dirs.UpLeft:
return(GetCell(6, 6, scale));
case Local.Dirs.Up:
return(GetCell(3, 5, scale));
case Local.Dirs.UpRight:
return(GetCell(0, 6, scale));
case Local.Dirs.Right:
return(GetCell(1, 3, scale));
case Local.Dirs.DownRight:
return(GetCell(0, 0, scale));
case Local.Dirs.Down:
return(GetCell(3, 1, scale));
case Local.Dirs.DownLeft:
return(GetCell(6, 0, scale));
case Local.Dirs.Left:
return(GetCell(5, 3, scale));
case Local.Dirs.Nowhere:
return(GetCell(2, 2, scale));
}
return(null);
}
internal Cell GetViaEnd(Local.Dirs direction, int scale)
{
// to direction...
switch (direction)
{
case Local.Dirs.UpLeft:
return(GetCell(2, 2, scale));
case Local.Dirs.Up:
return(GetCell(3, 2, scale));
case Local.Dirs.UpRight:
return(GetCell(4, 2, scale));
case Local.Dirs.Right:
return(GetCell(4, 3, scale));
case Local.Dirs.DownRight:
return(GetCell(4, 4, scale));
case Local.Dirs.Down:
return(GetCell(3, 4, scale));
case Local.Dirs.DownLeft:
return(GetCell(2, 4, scale));
case Local.Dirs.Left:
return(GetCell(2, 3, scale));
case Local.Dirs.Nowhere:
return(GetCell(3, 3, scale));
}
return(null);
}
//--------------------------------------------------------------
internal bool GetViaFromTo(Local.Dirs from, Local.Dirs to, int scale, out Cell result)
{
result = generic_cell;
if (from == Local.Dirs.Nowhere)
{
result = GetViaStart(to, scale);
return(true); //
}
else if (to == Local.Dirs.Nowhere)
{
result = GetViaEnd(from, scale);
return(true); //
}
switch ((int)from | ((int)to << 4))
{
case (int)Local.Dirs.Left | ((int)Local.Dirs.UpRight << 4):
case (int)Local.Dirs.UpRight | ((int)Local.Dirs.Left << 4):
result = GetCell(4, 6, scale);
return(true); //
case (int)Local.Dirs.Left | ((int)Local.Dirs.Right << 4):
case (int)Local.Dirs.Right | ((int)Local.Dirs.Left << 4):
result = GetCell(3, 0, scale);
return(true); //
case (int)Local.Dirs.UpLeft | ((int)Local.Dirs.Right << 4):
case (int)Local.Dirs.Right | ((int)Local.Dirs.UpLeft << 4):
result = GetCell(2, 6, scale);
return(true); //
case (int)Local.Dirs.Left | ((int)Local.Dirs.DownRight << 4):
case (int)Local.Dirs.DownRight | ((int)Local.Dirs.Left << 4):
result = GetCell(4, 0, scale);
return(true); //
case (int)Local.Dirs.UpLeft | ((int)Local.Dirs.DownRight << 4):
case (int)Local.Dirs.DownRight | ((int)Local.Dirs.UpLeft << 4):
result = GetCell(5, 1, scale);
return(true); //
case (int)Local.Dirs.Up | ((int)Local.Dirs.DownRight << 4):
case (int)Local.Dirs.DownRight | ((int)Local.Dirs.Up << 4):
result = GetCell(0, 4, scale);
return(true); //
case (int)Local.Dirs.UpLeft | ((int)Local.Dirs.Down << 4):
case (int)Local.Dirs.Down | ((int)Local.Dirs.UpLeft << 4):
result = GetCell(6, 2, scale);
return(true); //
case (int)Local.Dirs.Up | ((int)Local.Dirs.Down << 4):
case (int)Local.Dirs.Down | ((int)Local.Dirs.Up << 4):
result = GetCell(0, 3, scale);
return(true); //
case (int)Local.Dirs.UpRight | ((int)Local.Dirs.Down << 4):
case (int)Local.Dirs.Down | ((int)Local.Dirs.UpRight << 4):
result = GetCell(0, 2, scale);
return(true); //
case (int)Local.Dirs.Up | ((int)Local.Dirs.DownLeft << 4):
case (int)Local.Dirs.DownLeft | ((int)Local.Dirs.Up << 4):
result = GetCell(6, 4, scale);
return(true); //
case (int)Local.Dirs.UpRight | ((int)Local.Dirs.DownLeft << 4):
case (int)Local.Dirs.DownLeft | ((int)Local.Dirs.UpRight << 4):
result = GetCell(1, 1, scale);
return(true); //
case (int)Local.Dirs.Right | ((int)Local.Dirs.DownLeft << 4):
case (int)Local.Dirs.DownLeft | ((int)Local.Dirs.Right << 4):
result = GetCell(2, 0, scale);
return(true); //
}
return(false);
}
