public SquigglyGrid RandomlyBlank(SquigglyGrid tempGrid, int sym, ref int blankCount)
{
//blank one or two squares(depending on if on center line) randomly
Random rnd = new Random(); //allow random number generation
int row = rnd.Next(0, 8); //choose randomly the row
int column = rnd.Next(0, 8); //and column of cell to blank
while (tempGrid.Grid[row, column] == 0) //don't blank a blank cell
{
row = rnd.Next(0, 8);
column = rnd.Next(0, 8);
}
tempGrid.InitSetCell(row, column, 0); //clear chosen cell
blankCount++; //increment the count of blanks
switch (sym)
{
//based on symmetry, blank a second cell
case 0: //vertical symmetry
if (tempGrid.Grid[row, 8 - column] != 0) //if not already blanked
{
blankCount++; //increment blank counter
}
tempGrid.InitSetCell(row, 8 - column, 0); //blank opposite cell
break;
case 1: //horizontal symmetry
if (tempGrid.Grid[8 - row, column] != 0)
{
blankCount++;
}
tempGrid.InitSetCell(8 - row, column, 0);
break;
case 2: //diagonal symmetry
if (tempGrid.Grid[column, row] != 0)
{
blankCount++;
}
tempGrid.InitSetCell(column, row, 0);
break;
default: //diagonal symmetry
if (tempGrid.Grid[row, 8 - column] != 0)
{
blankCount++;
}
tempGrid.InitSetCell(column, row, 0);
break;
}
return(tempGrid);
}
public SquigglyGrid InitGrid()
{
//Randomly fill in the first row and column of squigglygrid
SquigglyGrid tempGrid = new SquigglyGrid {
}; //temporary grid to assign values into
int row = 0; //variable for navigating 'rows'
int col = 0; //variable for navigating 'columns'
int newVal; //value to place into grid
//bool solved;
List <int> valueSet = new List <int>(Enumerable.Range(1, 9)); //range of numbers that can be added to the grid
List <int> valueSet2 = new List <int>(); //placeholder values in column 0
Random rnd = new Random(); //random variable for choosing random number
int randIndex = 0; //index in valueSet/valueSet2 that is accessed
randIndex = rnd.Next(0, 8); //get a random number and place in grid(0,0)
newVal = valueSet[randIndex];
tempGrid.InitSetCell(row, col, newVal);
valueSet.Remove(newVal); //remove paced value from options
for (row = 1; row < 9; row++)
{ //fills in column 0 with remaining possible values, storing in place-
//holder as it goes so as to preserve when placing in row 0 later
randIndex = rnd.Next(0, valueSet.Count);
newVal = valueSet[randIndex];
valueSet2.Add(newVal);
valueSet.Remove(newVal);
tempGrid.InitSetCell(row, col, newVal);
}
//row = 0; //reset row to 0
for (int i = 8; i >= 0; i--)
{
tempGrid.InitSetCell(0, 9 - i, tempGrid.Grid[i, 0]);
}
do
{
squigglySolver = new SquigglySolver(scheme);
squigglySolver.SolveGrid((SquigglyGrid)tempGrid.Clone(), false); //Slv to fill remainder of grid
SolutionGrid = squigglySolver.SolutionGrid;
} while (SolutionGrid == null || SolutionGrid.IsBlank());
PermaGrid = Blanker(SolutionGrid); //call Blanker to carry out the
return(PermaGrid); //blanking of fileds,then return the grid to user to solve
}
/// <summary>
/// This clones the object.
/// </summary>
/// <returns>A clone of itself.</returns>
public object Clone()
{
//enable cloning for safe copying of the object
SquigglyGrid p = new SquigglyGrid();
for (int i = 0; i < Max; i++)
{
for (int j = 0; j < Max; j++)
{
p.InitSetCell(i, j, Grid[i, j]);
}
}
return p;
}
/// <summary>
/// This clones the object.
/// </summary>
/// <returns>A clone of itself.</returns>
public object Clone()
{
//enable cloning for safe copying of the object
SquigglyGrid p = new SquigglyGrid();
for (int i = 0; i < Max; i++)
{
for (int j = 0; j < Max; j++)
{
p.InitSetCell(i, j, Grid[i, j]);
}
}
return(p);
}
public SquigglyGrid InitGrid()
{
//Randomly fill in the first row and column of squigglygrid
SquigglyGrid tempGrid = new SquigglyGrid { }; //temporary grid to assign values into
int row = 0; //variable for navigating 'rows'
int col = 0; //variable for navigating 'columns'
int newVal; //value to place into grid
//bool solved;
List<int> valueSet = new List<int>(Enumerable.Range(1, 9)); //range of numbers that can be added to the grid
List<int> valueSet2 = new List<int>(); //placeholder values in column 0
Random rnd = new Random(); //random variable for choosing random number
int randIndex = 0; //index in valueSet/valueSet2 that is accessed
randIndex = rnd.Next(0, 8); //get a random number and place in grid(0,0)
newVal = valueSet[randIndex];
tempGrid.InitSetCell(row, col, newVal);
valueSet.Remove(newVal); //remove paced value from options
for (row = 1; row < 9; row++)
{ //fills in column 0 with remaining possible values, storing in place-
//holder as it goes so as to preserve when placing in row 0 later
randIndex = rnd.Next(0, valueSet.Count);
newVal = valueSet[randIndex];
valueSet2.Add(newVal);
valueSet.Remove(newVal);
tempGrid.InitSetCell(row, col, newVal);
}
//row = 0; //reset row to 0
for (int i = 8; i >= 0; i--)
{
tempGrid.InitSetCell(0, 9 - i, tempGrid.Grid[i, 0]);
}
do
{
squigglySolver = new SquigglySolver(scheme);
squigglySolver.SolveGrid((SquigglyGrid)tempGrid.Clone(), false); //Slv to fill remainder of grid
SolutionGrid = squigglySolver.SolutionGrid;
} while (SolutionGrid == null || SolutionGrid.IsBlank());
PermaGrid = Blanker(SolutionGrid); //call Blanker to carry out the
return PermaGrid; //blanking of fileds,then return the grid to user to solve
}
public SquigglyGrid RandomlyBlank(SquigglyGrid tempGrid, int sym, ref int blankCount)
{
//blank one or two squares(depending on if on center line) randomly
Random rnd = new Random(); //allow random number generation
int row = rnd.Next(0, 8); //choose randomly the row
int column = rnd.Next(0, 8); //and column of cell to blank
while (tempGrid.Grid[row, column] == 0) //don't blank a blank cell
{
row = rnd.Next(0, 8);
column = rnd.Next(0, 8);
}
tempGrid.InitSetCell(row, column, 0); //clear chosen cell
blankCount++; //increment the count of blanks
switch (sym)
{
//based on symmetry, blank a second cell
case 0: //vertical symmetry
if (tempGrid.Grid[row, 8 - column] != 0) //if not already blanked
blankCount++; //increment blank counter
tempGrid.InitSetCell(row, 8 - column, 0); //blank opposite cell
break;
case 1: //horizontal symmetry
if (tempGrid.Grid[8 - row, column] != 0)
blankCount++;
tempGrid.InitSetCell(8 - row, column, 0);
break;
case 2: //diagonal symmetry
if (tempGrid.Grid[column, row] != 0)
blankCount++;
tempGrid.InitSetCell(column, row, 0);
break;
default: //diagonal symmetry
if (tempGrid.Grid[row, 8 - column] != 0)
blankCount++;
tempGrid.InitSetCell(column, row, 0);
break;
}
return tempGrid;
}