private bool mergeDown()
{
bool performedMerge = false;
// merge any similar numbers (start the top and move down)
for (int x = 0; x <= size - 1; x++)
{
for (int y = 0; y <= size - 1; y++)
{
_2048Tile tile = getTileAt(x, y);
if (y < size - 1)
{
_2048Tile upTile = (getTileAt(x, y + 1));
if (upTile.getValue() == tile.getValue())
{
Score += upTile.getValue();
upTile.setValue(upTile.getValue() * 2);
tile.setValue(0);
performedMerge = true;
}
}
}
}
return(performedMerge);
}
private bool mergeRight()
{
bool performedMerge = false;
// merge any similar numbers (start right go left)
for (int x = size - 1; x >= 0; x--)
{
for (int y = size - 1; y >= 0; y--)
{
_2048Tile tile = getTileAt(x, y);
if (x < size - 1)
{
_2048Tile rightTile = (getTileAt(x + 1, y));
if (rightTile.getValue() == tile.getValue())
{
Score += rightTile.getValue();
rightTile.setValue(rightTile.getValue() * 2);
tile.setValue(0);
performedMerge = true;
}
}
}
}
return(performedMerge);
}
private bool mergeUp()
{
bool performedMerge = false;
// merge any similar numbers (start the bottom and move up)
for (int x = size - 1; x >= 0; x--)
{
for (int y = size - 1; y >= 0; y--)
{
_2048Tile tile = getTileAt(x, y);
if (y > 0)
{
_2048Tile upTile = (getTileAt(x, y - 1));
if (upTile.getValue() == tile.getValue())
{
Score += upTile.getValue();
upTile.setValue(upTile.getValue() * 2);
tile.setValue(0);
performedMerge = true;
}
}
}
}
return(performedMerge);
}
private bool mergeLeft()
{
bool performedMerge = false;
// merge any similar numbers (start left go right)
for (int x = 0; x <= size - 1; x++)
{
for (int y = 0; y <= size - 1; y++)
{
_2048Tile tile = getTileAt(x, y);
if (x > 0)
{
_2048Tile leftTile = (getTileAt(x - 1, y));
if (leftTile.getValue() == tile.getValue())
{
Score += leftTile.getValue();
leftTile.setValue(leftTile.getValue() * 2);
tile.setValue(0);
performedMerge = true;
}
}
}
}
return(performedMerge);
}