_TwoShorts _GiveStartEndVerColumn(short __diffX, bool __verRight, _TwoShorts __startX_EndX)
{
_TwoShorts __startEndVerColumns;
if (__verRight)
{
__startEndVerColumns.short_1 = (short)(__startX_EndX.short_2 - __diffX + 1); // start ; +1 because of inclusive in condition
__startEndVerColumns.short_2 = (short)(__startX_EndX.short_2 + 1); // end ; +1 because of exlusive in condition
}
else
{
__startEndVerColumns.short_1 = __startX_EndX.short_1;
__startEndVerColumns.short_2 = (short)(__startX_EndX.short_1 + __diffX); // Over here is not need of +1
}
return(__startEndVerColumns);
}
/// <summary>
/// First we deleting whole colums and then whole rows, or partly.
/// </summary>
/// <param name="__diffY"></param>
/// <param name="__diffX"></param>
/// <param name="__verRight">Adding on the right ?</param>
/// <param name="__horDown">Adding at the bottom ?</param>
void _DeleteOldTiles_V2(short __diffY, short __diffX, bool __verRight, bool __horDown)
{
_FourShorts __last_StartXY_EndXY = new _FourShorts(_lastStartX, _lastStartY, _lastEndX, _lastEndY);
_TwoShorts __startEndVerColumns = new _TwoShorts(0, 0);
if (__diffX != 0)
{
__startEndVerColumns = _GiveStartEndVerColumn(__diffX, __verRight, new _TwoShorts(__last_StartXY_EndXY.short_1, __last_StartXY_EndXY.short_3));
_DeleteTiles(__startEndVerColumns.short_1, __startEndVerColumns.short_2, _lastStartY, (short)(_lastEndY + 1));
}
if (__diffY != 0)
{
_FourShorts __startEndHorColumns_And_StartEndHorRows = _GiveStartEndHorColumns_And_StartEndHorRows(__diffY, __diffX, __verRight, __horDown, __startEndVerColumns, __last_StartXY_EndXY);
_DeleteTiles(__startEndHorColumns_And_StartEndHorRows.short_1,
__startEndHorColumns_And_StartEndHorRows.short_2,
__startEndHorColumns_And_StartEndHorRows.short_3,
__startEndHorColumns_And_StartEndHorRows.short_4);
}
}
_FourShorts _GiveStartEndHorColumns_And_StartEndHorRows(short __diffY, short __diffX, bool __verRight, bool __horDown, _TwoShorts __startEndVerColumns, _FourShorts __startXY_EndXY)
{
_FourShorts __startEndHorColumns_And_StartEndHorRows = new _FourShorts(0, 0, 0, 0);
if (__horDown)
{
if (__diffX != 0)
{
if (__verRight)
{
__startEndHorColumns_And_StartEndHorRows = new _FourShorts(__startXY_EndXY.short_1, __startEndVerColumns.short_1, // start, End Horizontal COLUMNS
(short)(__startXY_EndXY.short_4 - __diffY + 1), (short)(__startXY_EndXY.short_4 + 1)); // start, End Horizontal ROWS
}
else
{
__startEndHorColumns_And_StartEndHorRows = new _FourShorts(
(short)(__startEndVerColumns.short_2),
(short)(__startXY_EndXY.short_3 + 1),
(short)(__startXY_EndXY.short_4 - __diffY + 1),
(short)(__startXY_EndXY.short_4 + 1));
}
}
else
{
__startEndHorColumns_And_StartEndHorRows = new _FourShorts(
__startXY_EndXY.short_1,
(short)(__startXY_EndXY.short_3 + 1),
(short)(__startXY_EndXY.short_4 - __diffY + 1),
(short)(__startXY_EndXY.short_4 + 1));
}
}
else
{
if (__diffX != 0)
{
if (__verRight)
{
__startEndHorColumns_And_StartEndHorRows = new _FourShorts(__startXY_EndXY.short_1, __startEndVerColumns.short_1,
__startXY_EndXY.short_2, (short)(__startXY_EndXY.short_2 + __diffY));
}
else
{
__startEndHorColumns_And_StartEndHorRows = new _FourShorts(__startEndVerColumns.short_2, (short)(__startXY_EndXY.short_3 + 1),
__startXY_EndXY.short_2, (short)(__startXY_EndXY.short_2 + __diffY));
}
}
else
{
__startEndHorColumns_And_StartEndHorRows = new _FourShorts(__startXY_EndXY.short_1, (short)(__startXY_EndXY.short_3 + 1),
__startXY_EndXY.short_2, (short)(__startXY_EndXY.short_2 + __diffY));
}
}
return(__startEndHorColumns_And_StartEndHorRows);
}