public int[,] Initialise()
{
// Start with 2 random tiles. Values can be 2 or 4.
var random = new Random();
var firstx = random.Next(TilesXY.GetLength(0));
var firsty = random.Next(TilesXY.GetLength(1));
var secondx = random.Next(TilesXY.GetLength(0));
var secondy = random.Next(TilesXY.GetLength(1));
while (secondx == firstx && secondy == firsty)
{
secondx = random.Next(TilesXY.GetLength(0));
secondy = random.Next(TilesXY.GetLength(1));
}
Console.WriteLine("firstx = {0}, firsty = {1}, secondx = {2}, secondy = {3}",
firstx, firsty, secondx, secondy);
TilesXY[firstx, firsty] = (random.Next(2) + 1) * 2;
TilesXY[secondx, secondy] = (random.Next(2) + 1) * 2;
foreach (var tile in TilesXY)
{
Console.Write(tile);
}
Console.WriteLine();
return(TilesXY);
}
// Adds a 2 or a 4 to an empty space
public int[,] AddRandomTileToEmptySpace()
{
var random = new Random();
var x = random.Next(TilesXY.GetLength(0));
var y = random.Next(TilesXY.GetLength(1));
while (TilesXY[x, y] != 0)
{
x = random.Next(TilesXY.GetLength(0));
y = random.Next(TilesXY.GetLength(1));
}
TilesXY[x, y] = (random.Next(2) + 1) * 2;
return(TilesXY);
}
public int[,] Move(Direction direction)
{
switch (direction)
{
case Direction.Left:
for (var i = 0; i < TilesXY.GetLength(0); i++)
{
var row = new int[4];
for (var j = 0; j < TilesXY.GetLength(1); j++)
{
row[j] = TilesXY[i, j];
}
row = Merge(row);
for (var j = 0; j < TilesXY.GetLength(1); j++)
{
TilesXY[i, j] = row[j];
}
}
break;
case Direction.Right:
for (var i = 0; i < TilesXY.GetLength(0); i++)
{
var row = new int[4];
for (var j = TilesXY.GetLength(1) - 1; j >= 0; j--)
{
row[TilesXY.GetLength(1) - j - 1] = TilesXY[i, j];
}
row = Merge(row);
for (var j = TilesXY.GetLength(1) - 1; j >= 0; j--)
{
TilesXY[i, j] = row[TilesXY.GetLength(1) - 1 - j];
}
}
break;
case Direction.Up:
for (var i = 0; i < TilesXY.GetLength(1); i++)
{
var row = new int[4];
for (var j = 0; j < TilesXY.GetLength(0); j++)
{
row[j] = TilesXY[j, i];
}
row = Merge(row);
for (var j = 0; j < TilesXY.GetLength(0); j++)
{
TilesXY[j, i] = row[j];
}
}
break;
case Direction.Down:
for (var i = 0; i < TilesXY.GetLength(1); i++)
{
var row = new int[4];
for (var j = TilesXY.GetLength(0) - 1; j >= 0; j--)
{
row[TilesXY.GetLength(0) - j - 1] = TilesXY[j, i];
}
row = Merge(row);
for (var j = TilesXY.GetLength(0) - 1; j >= 0; j--)
{
TilesXY[j, i] = row[TilesXY.GetLength(0) - 1 - j];
}
}
break;
default:
break;
}
return(TilesXY);
}
